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siavooshpayandehazad/TTU_CPU_Project | pico_CPU/Adder.vhd | 2 | 1122 | library IEEE;
use IEEE.std_logic_1164.all;
USE ieee.std_logic_unsigned.ALL;
USE IEEE.NUMERIC_STD.ALL;
use work.pico_cpu.all;
--Adder entity
entity Adder_Sub is
generic (BitWidth: integer);
port (
A: in std_logic_vector (BitWidth-1 downto 0);
B: in std_logic_vector (BitWidth-1 downto 0);
Add_Sub: in std_logic;
result: out std_logic_vector (BitWidth-1 downto 0);
Cout: out std_logic
);
end Adder_Sub;
--Architecture of the Adder
architecture RTL of Adder_Sub is
---------------------------------------------
-- Signals
---------------------------------------------
signal carry : std_logic_vector (bitwidth downto 0) := (others => '0');
---------------------------------------------
begin
carry(0) <= Add_Sub;
---------------------------------------------
-- component instantiation
---------------------------------------------
g_counter: for N in 0 to bitwidth-1 generate
ADDN : FullAdderSub port map (carry(N),A(N),B(N),Add_Sub,carry(N+1),result(N));
end generate;
---------------------------------------------
Cout <= carry(bitwidth);
end RTL;
| gpl-2.0 |
siavooshpayandehazad/TTU_CPU_Project | pico_CPU_pipelined/Memory.vhd | 1 | 1387 | library IEEE;
use IEEE.STD_LOGIC_1164.all;
use IEEE.Numeric_Std.all;
use work.pico_cpu.all;
entity Mem is
generic (BitWidth: integer);
port ( RdAddress: in std_logic_vector (BitWidth-1 downto 0);
Data_in: in std_logic_vector (BitWidth-1 downto 0);
WrtAddress: in std_logic_vector (BitWidth-1 downto 0);
clk: in std_logic;
RW: in std_logic;
rst: in std_logic;
Data_Out: out std_logic_vector (BitWidth-1 downto 0)
);
end Mem;
architecture beh of Mem is
type Mem_type is array (0 to DataMem_depth-1) of std_logic_vector(BitWidth-1 downto 0) ;
signal Mem : Mem_type := ((others=> (others=>'0')));
begin
MemProcess: process(clk,rst) is
begin
if rst = '1' then
Mem<= ((others=> (others=>'0')));
elsif rising_edge(clk) then
if RW = '1' then
if to_integer(unsigned(WrtAddress(BitWidth-1 downto 0))) <= DataMem_depth-1 then
Mem(to_integer(unsigned(WrtAddress(BitWidth-1 downto 0)))) <= Data_in;
end if;
end if;
end if;
end process MemProcess;
process(RdAddress,clk)begin
if rising_edge(clk) then
if to_integer(unsigned(RdAddress(BitWidth-1 downto 0))) <= DataMem_depth-1 then
Data_Out <= Mem(to_integer(unsigned(RdAddress(BitWidth-1 downto 0))));
else
Data_Out <= (others=> '0');
end if;
end if;
end process;
end beh;
| gpl-2.0 |
siavooshpayandehazad/TTU_CPU_Project | pico_CPU_pipelined/RegisterFile.vhd | 2 | 3346 |
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use ieee.math_real.all;
entity RegisterFile is
generic (BitWidth: integer);
port ( clk : in std_logic;
rst: in std_logic;
Data_in_mem: in std_logic_vector (BitWidth-1 downto 0);
Data_in_CU: in std_logic_vector (BitWidth-1 downto 0);
Data_in_ACC: in std_logic_vector (BitWidth-1 downto 0);
Data_in_sel: in std_logic_vector (1 downto 0);
Register_in_sel: in std_logic_vector (7 downto 0);
Register_out_sel: in std_logic_vector (2 downto 0);
Data_out: out std_logic_vector (BitWidth-1 downto 0)
);
end RegisterFile;
architecture Behavioral of RegisterFile is
Signal R0_in,R0_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R1_in,R1_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R2_in,R2_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R3_in,R3_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R4_in,R4_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R5_in,R5_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R6_in,R6_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
Signal R7_in,R7_out: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
signal Data_in: std_logic_vector (BitWidth-1 downto 0):= (others=>'0');
begin
process (clk,rst)begin
if rst = '1' then
R0_out <= (others=>'0');
R1_out <= (others=>'0');
R2_out <= (others=>'0');
R3_out <= (others=>'0');
R4_out <= (others=>'0');
R5_out <= (others=>'0');
R6_out <= (others=>'0');
R7_out <= (others=>'0');
elsif clk'event and clk='1' then
R0_out <= R0_in;
R1_out <= R1_in;
R2_out <= R2_in;
R3_out <= R3_in;
R4_out <= R4_in;
R5_out <= R5_in;
R6_out <= R6_in;
R7_out <= R7_in;
end if;
end process;
process(Data_in_mem,Data_in_CU,Data_in_ACC,Data_in_sel)begin
case Data_in_sel is
when "01" => Data_in <= Data_in_CU;
when "10" => Data_in <= Data_in_ACC;
when "11" => Data_in <= Data_in_mem;
when others => Data_in <= (others=>'0');
end case;
end process;
process(Data_in ,Register_in_sel,R7_out,R6_out,R5_out,R4_out,R3_out,R2_out,R1_out,R0_out)begin
if Register_in_sel(0) = '0' then
R0_in <= R0_out;
else
R0_in <= Data_in;
end if;
if Register_in_sel(1) = '0' then
R1_in <= R1_out;
else
R1_in <= Data_in;
end if;
if Register_in_sel(2) = '0' then
R2_in <= R2_out;
else
R2_in <= Data_in;
end if;
if Register_in_sel(3) = '0' then
R3_in <= R3_out;
else
R3_in <= Data_in;
end if;
if Register_in_sel(4) = '0' then
R4_in <= R4_out;
else
R4_in <= Data_in;
end if;
if Register_in_sel(5) = '0' then
R5_in <= R5_out;
else
R5_in <= Data_in;
end if;
if Register_in_sel(6) = '0' then
R6_in <= R6_out;
else
R6_in <= Data_in;
end if;
if Register_in_sel(7) = '0' then
R7_in <= R7_out;
else
R7_in <= Data_in;
end if;
end process;
process (Register_out_sel,R7_out,R6_out,R5_out,R4_out,R3_out,R2_out,R1_out,R0_out)begin
case Register_out_sel is
when "000" => Data_out<= R0_out;
when "001" => Data_out<= R1_out;
when "010" => Data_out<= R2_out;
when "011" => Data_out<= R3_out;
when "100" => Data_out<= R4_out;
when "101" => Data_out<= R5_out;
when "110" => Data_out<= R6_out;
when "111" => Data_out<= R7_out;
when others => Data_out<= (others =>'0');
end case;
end process;
end Behavioral;
| gpl-2.0 |
Logistic1994/CPU | module_RAM.vhd | 1 | 1842 | ----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 16:30:23 05/29/2015
-- Design Name:
-- Module Name: module_ram - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
--use IEEE.NUMERIC_STD.ALL;
-- Uncomment the following library declaration if instantiating
-- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity module_RAM is
port(
clk_RAM: in std_logic;
nreset: in std_logic;
RAM_CS: in std_logic; -- RAMƬѡ
nRAM_EN: in std_logic; -- RAMÊä³öʹÄÜ
WR_nRD: in std_logic; -- 1Ϊд£¬0Ϊ¶Á
ARi: in std_logic_vector(6 downto 0); -- RAMµØÖ·ÐźÅ
datai: in std_logic_vector(7 downto 0);
datao: out std_logic_vector(7 downto 0);
do: out std_logic); -- Êý¾Ý×ÜÏß
end module_RAM;
architecture Behavioral of module_RAM is
type matrix is array (integer range<>) of std_logic_vector(7 downto 0); -- ¶¨ÒåÕâÑùµÄÀàÐÍ
signal ram: matrix(0 to 2**7-1);
begin
process(nreset, clk_RAM)
begin
if nreset = '0' then
-- do nothing
elsif rising_edge(clk_RAM) then
if RAM_CS = '1' and nRAM_EN = '0' then
if WR_nRD = '1' then
ram(conv_integer(ARi)) <= datai;
datao <= (others => 'Z');
do <= '0';
else
datao <= ram(conv_integer(ARi));
do <= '1';
end if;
else
datao <= (others => 'Z');
do <= '0';
end if;
end if;
end process;
end Behavioral;
| gpl-2.0 |
Logistic1994/CPU | cpu_test.vhd | 1 | 4781 | --------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 16:28:24 06/04/2015
-- Design Name:
-- Module Name: F:/WorkSpace/workspace_ise/Exp/CPU/cpu_test.vhd
-- Project Name: CPU
-- Target Device:
-- Tool versions:
-- Description:
--
-- VHDL Test Bench Created by ISE for module: module_CPU
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
-- Notes:
-- This testbench has been automatically generated using types std_logic and
-- std_logic_vector for the ports of the unit under test. Xilinx recommends
-- that these types always be used for the top-level I/O of a design in order
-- to guarantee that the testbench will bind correctly to the post-implementation
-- simulation model.
--------------------------------------------------------------------------------
LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
--USE ieee.numeric_std.ALL;
ENTITY cpu_test IS
END cpu_test;
ARCHITECTURE behavior OF cpu_test IS
-- Component Declaration for the Unit Under Test (UUT)
COMPONENT module_CPU
PORT(
clk : IN std_logic;
nreset : IN std_logic;
io_input : IN std_logic_vector(7 downto 0);
io_output : OUT std_logic_vector(7 downto 0);
data_test : OUT std_logic_vector(7 downto 0);
ar_test : OUT std_logic_vector(6 downto 0);
cm_test : OUT std_logic_vector(47 downto 0);
addr_test : OUT std_logic_vector(11 downto 0);
ir_test : OUT std_logic_vector(7 downto 0);
pc_test : OUT std_logic_vector(11 downto 0);
c1_test : OUT std_logic;
c2_test : OUT std_logic;
n1_test : OUT std_logic;
n2_test : OUT std_logic;
w0_test : OUT std_logic;
w1_test : OUT std_logic;
w2_test : OUT std_logic;
w3_test : OUT std_logic;
ir_ctest : OUT std_logic;
rs_test : OUT std_logic;
rd_test : OUT std_logic;
pc_ntest : OUT std_logic;
nload_test : OUT std_logic;
x_test : OUT std_logic;
z_test : OUT std_logic;
count_test : OUT integer
);
END COMPONENT;
--Inputs
signal clk : std_logic := '0';
signal nreset : std_logic := '0';
signal io_input : std_logic_vector(7 downto 0) := (others => '0');
--Outputs
signal io_output : std_logic_vector(7 downto 0);
signal data_test : std_logic_vector(7 downto 0);
signal ar_test : std_logic_vector(6 downto 0);
signal cm_test : std_logic_vector(47 downto 0);
signal addr_test : std_logic_vector(11 downto 0);
signal ir_test : std_logic_vector(7 downto 0);
signal pc_test : std_logic_vector(11 downto 0);
signal c1_test : std_logic;
signal c2_test : std_logic;
signal n1_test : std_logic;
signal n2_test : std_logic;
signal w0_test : std_logic;
signal w1_test : std_logic;
signal w2_test : std_logic;
signal w3_test : std_logic;
signal ir_ctest : std_logic;
signal rs_test : std_logic;
signal rd_test : std_logic;
signal pc_ntest : std_logic;
signal nload_test : std_logic;
signal x_test : std_logic;
signal z_test : std_logic;
signal count_test : integer;
-- Clock period definitions
constant clk_period : time := 2 ns;
BEGIN
-- Instantiate the Unit Under Test (UUT)
uut: module_CPU PORT MAP (
clk => clk,
nreset => nreset,
io_input => io_input,
io_output => io_output,
data_test => data_test,
ar_test => ar_test,
cm_test => cm_test,
addr_test => addr_test,
ir_test => ir_test,
pc_test => pc_test,
c1_test => c1_test,
c2_test => c2_test,
n1_test => n1_test,
n2_test => n2_test,
w0_test => w0_test,
w1_test => w1_test,
w2_test => w2_test,
w3_test => w3_test,
ir_ctest => ir_ctest,
rs_test => rs_test,
rd_test => rd_test,
pc_ntest => pc_ntest,
nload_test => nload_test,
x_test => x_test,
z_test => z_test,
count_test => count_test
);
-- Clock process definitions
clk_process :process
begin
clk <= '0';
wait for clk_period/2;
clk <= '1';
wait for clk_period/2;
end process;
-- Stimulus process
stim_proc: process
begin
-- hold reset state for 100 ns.
wait for 100 ns;
nreset <= '1';
io_input <= X"23";
wait for clk_period*100;
-- insert stimulus here
wait for clk_period*1000;
end process;
END;
| gpl-2.0 |
codebrainz/geany | data/filedefs/filetypes.vhdl | 22 | 3042 | # For complete documentation of this file, please see Geany's main documentation
[styling]
# Edit these in the colorscheme .conf file instead
default=default
comment=comment
comment_line_bang=comment_line
block_comment=comment
number=number_1
string=string_1
operator=operator
identifier=identifier_1
stringeol=string_eol
keyword=keyword_1
stdoperator=operator
attribute=attribute
stdfunction=function
stdpackage=preprocessor
stdtype=type
userword=keyword_2
[keywords]
# all items must be in one line
keywords=access after alias all architecture array assert attribute begin block body buffer bus case component configuration constant disconnect downto else elsif end entity exit file for function generate generic group guarded if impure in inertial inout is label library linkage literal loop map new next null of on open others out package port postponed procedure process pure range record register reject report return select severity shared signal subtype then to transport type unaffected units until use variable wait when while with
operators=abs and mod nand nor not or rem rol ror sla sll sra srl xnor xor
attributes=left right low high ascending image value pos val succ pred leftof rightof base range reverse_range length delayed stable quiet transaction event active last_event last_active last_value driving driving_value simple_name path_name instance_name
std_functions=now readline read writeline write endfile resolved to_bit to_bitvector to_stdulogic to_stdlogicvector to_stdulogicvector to_x01 to_x01z to_UX01 rising_edge falling_edge is_x shift_left shift_right rotate_left rotate_right resize to_integer to_unsigned to_signed std_match to_01
std_packages=std ieee work standard textio std_logic_1164 std_logic_arith std_logic_misc std_logic_signed std_logic_textio std_logic_unsigned numeric_bit numeric_std math_complex math_real vital_primitives vital_timing
std_types=boolean bit character severity_level integer real time delay_length natural positive string bit_vector file_open_kind file_open_status line text side width std_ulogic std_ulogic_vector std_logic std_logic_vector X01 X01Z UX01 UX01Z unsigned signed
userwords=
[settings]
# default extension used when saving files
extension=vhd
# MIME type
mime_type=text/x-vhdl
# the following characters are these which a "word" can contains, see documentation
#wordchars=_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
# single comments, like # in this file
comment_single=--
# multiline comments
#comment_open=
#comment_close=
# set to false if a comment character/string should start at column 0 of a line, true uses any
# indentation of the line, e.g. setting to true causes the following on pressing CTRL+d
#command_example();
# setting to false would generate this
# command_example();
# This setting works only for single line comments
comment_use_indent=true
# context action command (please see Geany's main documentation for details)
context_action_cmd=
[indentation]
#width=4
# 0 is spaces, 1 is tabs, 2 is tab & spaces
#type=1
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_rlink/nexys2/sys_conf.vhd | 2 | 1721 | -- $Id: sys_conf.vhd 351 2010-12-30 21:50:54Z mueller $
--
-- Copyright 2010- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: sys_conf
-- Description: Definitions for sys_tst_rlink_n2 (for synthesis)
--
-- Dependencies: -
-- Tool versions: xst 12.1; ghdl 0.29
-- Revision History:
-- Date Rev Version Comment
-- 2010-12-29 351 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package sys_conf is
constant sys_conf_clkfx_divide : positive := 1;
constant sys_conf_clkfx_multiply : positive := 1; --
constant sys_conf_ser2rri_defbaud : integer := 115200; -- default 115k baud
constant sys_conf_hio_debounce : boolean := true; -- instantiate debouncers
-- derived constants
constant sys_conf_clksys : integer :=
(50000000/sys_conf_clkfx_divide)*sys_conf_clkfx_multiply;
constant sys_conf_clksys_mhz : integer := sys_conf_clksys/1000000;
constant sys_conf_ser2rri_cdinit : integer :=
(sys_conf_clksys/sys_conf_ser2rri_defbaud)-1;
end package sys_conf;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/memlib/ram_1swar_gen_unisim.vhd | 2 | 3629 | -- $Id: ram_1swar_gen_unisim.vhd 314 2010-07-09 17:38:41Z mueller $
--
-- Copyright 2008- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: ram_1swar_gen_unisim - syn
-- Description: Single-Port RAM with with one synchronous write and one
-- asynchronius read port (as distributed RAM).
-- Direct instantiation of Xilinx UNISIM primitives
--
-- Dependencies: -
-- Test bench: -
-- Target Devices: generic Spartan, Virtex
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2; ghdl 0.18-0.25
-- Revision History:
-- Date Rev Version Comment
-- 2008-03-08 123 1.0.1 use shorter label names
-- 2008-03-02 122 1.0 Initial version
--
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library unisim;
use unisim.vcomponents.ALL;
use work.slvtypes.all;
entity ram_1swar_gen is -- RAM, 1 sync w asyn r port
generic (
AWIDTH : positive := 4; -- address port width
DWIDTH : positive := 16); -- data port width
port (
CLK : in slbit; -- clock
WE : in slbit; -- write enable
ADDR : in slv(AWIDTH-1 downto 0); -- address port
DI : in slv(DWIDTH-1 downto 0); -- data in port
DO : out slv(DWIDTH-1 downto 0) -- data out port
);
end ram_1swar_gen;
architecture syn of ram_1swar_gen is
begin
assert AWIDTH>=4 and AWIDTH<=6
report "assert(AWIDTH>=4 and AWIDTH<=6): only 4..6 bit AWIDTH supported"
severity failure;
AW_4: if AWIDTH = 4 generate
GL: for i in DWIDTH-1 downto 0 generate
MEM : RAM16X1S
generic map (
INIT => X"0000")
port map (
O => DO(i),
A0 => ADDR(0),
A1 => ADDR(1),
A2 => ADDR(2),
A3 => ADDR(3),
D => DI(i),
WCLK => CLK,
WE => WE
);
end generate GL;
end generate AW_4;
AW_5: if AWIDTH = 5 generate
GL: for i in DWIDTH-1 downto 0 generate
MEM : RAM32X1S
generic map (
INIT => X"00000000")
port map (
O => DO(i),
A0 => ADDR(0),
A1 => ADDR(1),
A2 => ADDR(2),
A3 => ADDR(3),
A4 => ADDR(4),
D => DI(i),
WCLK => CLK,
WE => WE
);
end generate GL;
end generate AW_5;
AW_6: if AWIDTH = 6 generate
GL: for i in DWIDTH-1 downto 0 generate
MEM : RAM64X1S
generic map (
INIT => X"0000000000000000")
port map (
O => DO(i),
A0 => ADDR(0),
A1 => ADDR(1),
A2 => ADDR(2),
A3 => ADDR(3),
A4 => ADDR(4),
A5 => ADDR(5),
D => DI(i),
WCLK => CLK,
WE => WE
);
end generate GL;
end generate AW_6;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/bplib/s3board/tb/tb_s3board_fusp.vhd | 1 | 6721 | -- $Id: tb_s3board_fusp.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2010-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: tb_s3board_fusp - sim
-- Description: Test bench for s3board (base+fusp)
--
-- Dependencies: vlib/rlink/tb/tbcore_rlink_dcm
-- tb_s3board_core
-- vlib/serport/serport_uart_rxtx
-- s3board_fusp_aif [UUT]
--
-- To test: generic, any s3board_fusp_aif target
--
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 11.4, 12.1, 13.1; ghdl 0.18-0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-19 427 3.0.1 now numeric_std clean
-- 2010-12-30 351 3.0 use rlink/tb now
-- 2010-11-06 336 1.0.4 rename input pin CLK -> I_CLK50
-- 2010-05-21 292 1.0.3 rename _PM1_ -> _FUSP_
-- 2010-05-16 291 1.0.2 rename tb_s3board_usp->tb_s3board_fusp
-- 2010-05-02 287 1.0.1 add sbaddr_portsel def, now sbus addr 8
-- 2010-05-01 286 1.0 Initial version (derived from tb_s3board)
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use ieee.std_logic_textio.all;
use std.textio.all;
use work.slvtypes.all;
use work.rlinklib.all;
use work.rlinktblib.all;
use work.serport.all;
use work.s3boardlib.all;
use work.simlib.all;
use work.simbus.all;
entity tb_s3board_fusp is
end tb_s3board_fusp;
architecture sim of tb_s3board_fusp is
signal CLK : slbit := '0';
signal RESET : slbit := '0';
signal CLKDIV : slv2 := "00"; -- run with 1 clocks / bit !!
signal RXDATA : slv8 := (others=>'0');
signal RXVAL : slbit := '0';
signal RXERR : slbit := '0';
signal RXACT : slbit := '0';
signal TXDATA : slv8 := (others=>'0');
signal TXENA : slbit := '0';
signal TXBUSY : slbit := '0';
signal RX_HOLD : slbit := '0';
signal I_RXD : slbit := '1';
signal O_TXD : slbit := '1';
signal I_SWI : slv8 := (others=>'0');
signal I_BTN : slv4 := (others=>'0');
signal O_LED : slv8 := (others=>'0');
signal O_ANO_N : slv4 := (others=>'0');
signal O_SEG_N : slv8 := (others=>'0');
signal O_MEM_CE_N : slv2 := (others=>'1');
signal O_MEM_BE_N : slv4 := (others=>'1');
signal O_MEM_WE_N : slbit := '1';
signal O_MEM_OE_N : slbit := '1';
signal O_MEM_ADDR : slv18 := (others=>'Z');
signal IO_MEM_DATA : slv32 := (others=>'0');
signal O_FUSP_RTS_N : slbit := '0';
signal I_FUSP_CTS_N : slbit := '0';
signal I_FUSP_RXD : slbit := '1';
signal O_FUSP_TXD : slbit := '1';
signal UART_RESET : slbit := '0';
signal UART_RXD : slbit := '1';
signal UART_TXD : slbit := '1';
signal CTS_N : slbit := '0';
signal RTS_N : slbit := '0';
signal R_PORTSEL : slbit := '0';
constant sbaddr_portsel: slv8 := slv(to_unsigned( 8,8));
constant clock_period : time := 20 ns;
constant clock_offset : time := 200 ns;
constant setup_time : time := 5 ns;
constant c2out_time : time := 10 ns;
begin
TBCORE : tbcore_rlink
generic map (
CLK_PERIOD => clock_period,
CLK_OFFSET => clock_offset,
SETUP_TIME => setup_time,
C2OUT_TIME => c2out_time)
port map (
CLK => CLK,
RX_DATA => TXDATA,
RX_VAL => TXENA,
RX_HOLD => RX_HOLD,
TX_DATA => RXDATA,
TX_ENA => RXVAL
);
RX_HOLD <= TXBUSY or RTS_N; -- back preasure for data flow to tb
S3CORE : entity work.tb_s3board_core
port map (
I_SWI => I_SWI,
I_BTN => I_BTN,
O_MEM_CE_N => O_MEM_CE_N,
O_MEM_BE_N => O_MEM_BE_N,
O_MEM_WE_N => O_MEM_WE_N,
O_MEM_OE_N => O_MEM_OE_N,
O_MEM_ADDR => O_MEM_ADDR,
IO_MEM_DATA => IO_MEM_DATA
);
UUT : s3board_fusp_aif
port map (
I_CLK50 => CLK,
I_RXD => I_RXD,
O_TXD => O_TXD,
I_SWI => I_SWI,
I_BTN => I_BTN,
O_LED => O_LED,
O_ANO_N => O_ANO_N,
O_SEG_N => O_SEG_N,
O_MEM_CE_N => O_MEM_CE_N,
O_MEM_BE_N => O_MEM_BE_N,
O_MEM_WE_N => O_MEM_WE_N,
O_MEM_OE_N => O_MEM_OE_N,
O_MEM_ADDR => O_MEM_ADDR,
IO_MEM_DATA => IO_MEM_DATA,
O_FUSP_RTS_N => O_FUSP_RTS_N,
I_FUSP_CTS_N => I_FUSP_CTS_N,
I_FUSP_RXD => I_FUSP_RXD,
O_FUSP_TXD => O_FUSP_TXD
);
UART : serport_uart_rxtx
generic map (
CDWIDTH => CLKDIV'length)
port map (
CLK => CLK,
RESET => UART_RESET,
CLKDIV => CLKDIV,
RXSD => UART_RXD,
RXDATA => RXDATA,
RXVAL => RXVAL,
RXERR => RXERR,
RXACT => RXACT,
TXSD => UART_TXD,
TXDATA => TXDATA,
TXENA => TXENA,
TXBUSY => TXBUSY
);
proc_port_mux: process (R_PORTSEL, UART_TXD, CTS_N,
O_TXD, O_FUSP_TXD, O_FUSP_RTS_N)
begin
if R_PORTSEL = '0' then -- use main board rs232, no flow cntl
I_RXD <= UART_TXD; -- write port 0 inputs
UART_RXD <= O_TXD; -- get port 0 outputs
RTS_N <= '0';
I_FUSP_RXD <= '1'; -- port 1 inputs to idle state
I_FUSP_CTS_N <= '0';
else -- otherwise use pmod1 rs232
I_FUSP_RXD <= UART_TXD; -- write port 1 inputs
I_FUSP_CTS_N <= CTS_N;
UART_RXD <= O_FUSP_TXD; -- get port 1 outputs
RTS_N <= O_FUSP_RTS_N;
I_RXD <= '1'; -- port 0 inputs to idle state
end if;
end process proc_port_mux;
proc_moni: process
variable oline : line;
begin
loop
wait until rising_edge(CLK);
wait for c2out_time;
if RXERR = '1' then
writetimestamp(oline, SB_CLKCYCLE, " : seen RXERR=1");
writeline(output, oline);
end if;
end loop;
end process proc_moni;
proc_simbus: process (SB_VAL)
begin
if SB_VAL'event and to_x01(SB_VAL)='1' then
if SB_ADDR = sbaddr_portsel then
R_PORTSEL <= to_x01(SB_DATA(0));
end if;
end if;
end process proc_simbus;
end sim;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/memlib/ram_1swsr_xfirst_gen_unisim.vhd | 2 | 10103 | -- $Id: ram_1swsr_xfirst_gen_unisim.vhd 406 2011-08-14 21:06:44Z mueller $
--
-- Copyright 2008-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: ram_1swsr_xfirst_gen_unisim - syn
-- Description: Single-Port RAM with with one synchronous read/write port
-- Direct instantiation of Xilinx UNISIM primitives
--
-- Dependencies: -
-- Test bench: -
-- Target Devices: Spartan-3, Virtex-2,-4
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2,.., 13.1; ghdl 0.18-0.25
-- Revision History:
-- Date Rev Version Comment
-- 2011-08-14 406 1.0.2 cleaner code for L_DI initialization
-- 2008-04-13 135 1.0.1 fix range error for AW_14_S1
-- 2008-03-08 123 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library unisim;
use unisim.vcomponents.ALL;
use work.slvtypes.all;
entity ram_1swsr_xfirst_gen_unisim is -- RAM, 1 sync r/w ports
generic (
AWIDTH : positive := 11; -- address port width
DWIDTH : positive := 9; -- data port width
WRITE_MODE : string := "READ_FIRST"); -- write mode: (READ|WRITE)_FIRST
port(
CLK : in slbit; -- clock
EN : in slbit; -- enable
WE : in slbit; -- write enable
ADDR : in slv(AWIDTH-1 downto 0); -- address
DI : in slv(DWIDTH-1 downto 0); -- data in
DO : out slv(DWIDTH-1 downto 0) -- data out
);
end ram_1swsr_xfirst_gen_unisim;
architecture syn of ram_1swsr_xfirst_gen_unisim is
constant ok_mod32 : boolean := (DWIDTH mod 32)=0 and
((DWIDTH+35)/36)=((DWIDTH+31)/32);
constant ok_mod16 : boolean := (DWIDTH mod 16)=0 and
((DWIDTH+17)/18)=((DWIDTH+16)/16);
constant ok_mod08 : boolean := (DWIDTH mod 32)=0 and
((DWIDTH+8)/9)=((DWIDTH+7)/8);
begin
assert AWIDTH>=9 and AWIDTH<=14
report "assert(AWIDTH>=9 and AWIDTH<=14): unsupported BRAM from factor"
severity failure;
AW_09_S36: if AWIDTH=9 and not ok_mod32 generate
constant dw_mem : positive := ((DWIDTH+35)/36)*36;
signal L_DO : slv(dw_mem-1 downto 0) := (others=> '0');
signal L_DI : slv(dw_mem-1 downto 0) := (others=> '0');
begin
DI_PAD: if dw_mem>DWIDTH generate
L_DI(dw_mem-1 downto DWIDTH) <= (others=>'0');
end generate DI_PAD;
L_DI(DI'range) <= DI;
GL: for i in dw_mem/36-1 downto 0 generate
MEM : RAMB16_S36
generic map (
INIT => O"000000000000",
SRVAL => O"000000000000",
WRITE_MODE => WRITE_MODE)
port map (
DO => L_DO(36*i+31 downto 36*i),
DOP => L_DO(36*i+35 downto 36*i+32),
ADDR => ADDR,
CLK => CLK,
DI => L_DI(36*i+31 downto 36*i),
DIP => L_DI(36*i+35 downto 36*i+32),
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
DO <= L_DO(DO'range);
end generate AW_09_S36;
AW_09_S32: if AWIDTH=9 and ok_mod32 generate
GL: for i in DWIDTH/32-1 downto 0 generate
MEM : RAMB16_S36
generic map (
INIT => X"00000000",
SRVAL => X"00000000",
WRITE_MODE => WRITE_MODE)
port map (
DO => DO(32*i+31 downto 32*i),
DOP => open,
ADDR => ADDR,
CLK => CLK,
DI => DI(32*i+31 downto 32*i),
DIP => "0000",
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
end generate AW_09_S32;
AW_10_S18: if AWIDTH=10 and not ok_mod16 generate
constant dw_mem : positive := ((DWIDTH+17)/18)*18;
signal L_DO : slv(dw_mem-1 downto 0) := (others=> '0');
signal L_DI : slv(dw_mem-1 downto 0) := (others=> '0');
begin
DI_PAD: if dw_mem>DWIDTH generate
L_DI(dw_mem-1 downto DWIDTH) <= (others=>'0');
end generate DI_PAD;
L_DI(DI'range) <= DI;
GL: for i in dw_mem/18-1 downto 0 generate
MEM : RAMB16_S18
generic map (
INIT => O"000000",
SRVAL => O"000000",
WRITE_MODE => WRITE_MODE)
port map (
DO => L_DO(18*i+15 downto 18*i),
DOP => L_DO(18*i+17 downto 18*i+16),
ADDR => ADDR,
CLK => CLK,
DI => L_DI(18*i+15 downto 18*i),
DIP => L_DI(18*i+17 downto 18*i+16),
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
DO <= L_DO(DO'range);
end generate AW_10_S18;
AW_10_S16: if AWIDTH=10 and ok_mod16 generate
GL: for i in DWIDTH/16-1 downto 0 generate
MEM : RAMB16_S18
generic map (
INIT => X"0000",
SRVAL => X"0000",
WRITE_MODE => WRITE_MODE)
port map (
DO => DO(16*i+15 downto 16*i),
DOP => open,
ADDR => ADDR,
CLK => CLK,
DI => DI(16*i+15 downto 16*i),
DIP => "00",
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
end generate AW_10_S16;
AW_11_S9: if AWIDTH=11 and not ok_mod08 generate
constant dw_mem : positive := ((DWIDTH+8)/9)*9;
signal L_DO : slv(dw_mem-1 downto 0) := (others=> '0');
signal L_DI : slv(dw_mem-1 downto 0) := (others=> '0');
begin
DI_PAD: if dw_mem>DWIDTH generate
L_DI(dw_mem-1 downto DWIDTH) <= (others=>'0');
end generate DI_PAD;
L_DI(DI'range) <= DI;
GL: for i in dw_mem/9-1 downto 0 generate
MEM : RAMB16_S9
generic map (
INIT => O"000",
SRVAL => O"000",
WRITE_MODE => WRITE_MODE)
port map (
DO => L_DO(9*i+7 downto 9*i),
DOP => L_DO(9*i+8 downto 9*i+8),
ADDR => ADDR,
CLK => CLK,
DI => L_DI(9*i+7 downto 9*i),
DIP => L_DI(9*i+8 downto 9*i+8),
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
DO <= L_DO(DO'range);
end generate AW_11_S9;
AW_11_S8: if AWIDTH=11 and ok_mod08 generate
GL: for i in DWIDTH/8-1 downto 0 generate
MEM : RAMB16_S9
generic map (
INIT => X"00",
SRVAL => X"00",
WRITE_MODE => WRITE_MODE)
port map (
DO => DO(8*i+7 downto 8*i),
DOP => open,
ADDR => ADDR,
CLK => CLK,
DI => DI(8*i+7 downto 8*i),
DIP => "0",
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
end generate AW_11_S8;
AW_12_S4: if AWIDTH = 12 generate
constant dw_mem : positive := ((DWIDTH+3)/4)*4;
signal L_DO : slv(dw_mem-1 downto 0) := (others=> '0');
signal L_DI : slv(dw_mem-1 downto 0) := (others=> '0');
begin
DI_PAD: if dw_mem>DWIDTH generate
L_DI(dw_mem-1 downto DWIDTH) <= (others=>'0');
end generate DI_PAD;
L_DI(DI'range) <= DI;
GL: for i in dw_mem/4-1 downto 0 generate
MEM : RAMB16_S4
generic map (
INIT => X"0",
SRVAL => X"0",
WRITE_MODE => WRITE_MODE)
port map (
DO => L_DO(4*i+3 downto 4*i),
ADDR => ADDR,
CLK => CLK,
DI => L_DI(4*i+3 downto 4*i),
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
DO <= L_DO(DO'range);
end generate AW_12_S4;
AW_13_S2: if AWIDTH = 13 generate
constant dw_mem : positive := ((DWIDTH+1)/2)*2;
signal L_DO : slv(dw_mem-1 downto 0) := (others=> '0');
signal L_DI : slv(dw_mem-1 downto 0) := (others=> '0');
begin
DI_PAD: if dw_mem>DWIDTH generate
L_DI(dw_mem-1 downto DWIDTH) <= (others=>'0');
end generate DI_PAD;
L_DI(DI'range) <= DI;
GL: for i in dw_mem/2-1 downto 0 generate
MEM : RAMB16_S2
generic map (
INIT => "00",
SRVAL => "00",
WRITE_MODE => WRITE_MODE)
port map (
DO => L_DO(2*i+1 downto 2*i),
ADDR => ADDR,
CLK => CLK,
DI => L_DI(2*i+1 downto 2*i),
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
DO <= L_DO(DO'range);
end generate AW_13_S2;
AW_14_S1: if AWIDTH = 14 generate
GL: for i in DWIDTH-1 downto 0 generate
MEM : RAMB16_S1
generic map (
INIT => "0",
SRVAL => "0",
WRITE_MODE => WRITE_MODE)
port map (
DO => DO(i downto i),
ADDR => ADDR,
CLK => CLK,
DI => DI(i downto i),
EN => EN,
SSR => '0',
WE => WE
);
end generate GL;
end generate AW_14_S1;
end syn;
-- Note: in XST 8.2 the defaults for INIT_(A|B) and SRVAL_(A|B) are
-- nonsense: INIT_A : bit_vector := X"000";
-- This is a 12 bit value, while a 9 bit one is needed. Thus the
-- explicit definition above.
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_snhumanio/tst_snhumanio.vhd | 2 | 7536 | -- $Id: tst_snhumanio.vhd 416 2011-10-15 13:32:57Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: tst_snhumanio - syn
-- Description: simple stand-alone tester for sn_humanio
--
-- Dependencies: -
-- Test bench: -
--
-- Target Devices: generic
-- Tool versions: xst 13.1; ghdl 0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-10-15 416 1.0.2 fix sensitivity list of proc_next
-- 2011-10-08 412 1.0.1 use better rndm init (so that swi=0 is non-const)
-- 2011-09-17 410 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.comlib.all;
-- ----------------------------------------------------------------------------
entity tst_snhumanio is -- tester for rlink
generic (
BWIDTH : positive := 4); -- BTN port width
port (
CLK : in slbit; -- clock
RESET : in slbit; -- reset
CE_MSEC : in slbit; -- msec pulse
SWI : in slv8; -- switch settings
BTN : in slv(BWIDTH-1 downto 0); -- button settings
LED : out slv8; -- led data
DSP_DAT : out slv16; -- display data
DSP_DP : out slv4 -- display decimal points
);
end tst_snhumanio;
architecture syn of tst_snhumanio is
constant c_mode_rndm : slv2 := "00";
constant c_mode_cnt : slv2 := "01";
constant c_mode_swi : slv2 := "10";
constant c_mode_btst : slv2 := "11";
type regs_type is record
mode : slv2; -- current mode
allon : slbit; -- all LEDs on if set
cnt : slv16; -- counter
tcnt : slv16; -- swi/btn toggle counter
rndm : slv8; -- random number
swi_1 : slv8; -- last SWI state
btn_1 : slv(BWIDTH-1 downto 0); -- last BTN state
led : slv8; -- LED output state
dsp : slv16; -- display data
dp : slv4; -- display decimal points
end record regs_type;
-- the rndm start value is /= 0 because a seed of 0 with a SWI setting of 0
-- will result in a 0-0-0 sequence. The 01010101 start will get trapped in a
-- constant sequence with a 01100011 switch setting, which is rather unlikely.
constant rndminit : slv8 := "01010101";
constant btnzero : slv(BWIDTH-1 downto 0) := (others=>'0');
constant regs_init : regs_type := (
c_mode_rndm, -- mode
'0', -- allon
(others=>'0'), -- cnt
(others=>'0'), -- tcnt
rndminit, -- rndm
(others=>'0'), -- swi_1
btnzero, -- btn_1
(others=>'0'), -- led
(others=>'0'), -- dsp
(others=>'0') -- dp
);
signal R_REGS : regs_type := regs_init; -- state registers
signal N_REGS : regs_type := regs_init; -- next value state regs
signal BTN4 : slbit := '0';
begin
assert BWIDTH>=4
report "assert(BWIDTH>=4): at least 4 BTNs available"
severity failure;
B4YES: if BWIDTH > 4 generate
BTN4 <= BTN(4);
end generate B4YES;
B4NO: if BWIDTH = 4 generate
BTN4 <= '0';
end generate B4NO;
proc_regs: process (CLK)
begin
if rising_edge(CLK) then
if RESET = '1' then
R_REGS <= regs_init;
else
R_REGS <= N_REGS;
end if;
end if;
end process proc_regs;
proc_next: process (R_REGS, CE_MSEC, SWI, BTN, BTN4)
variable r : regs_type := regs_init;
variable n : regs_type := regs_init;
variable btn03 : slv4 := (others=>'0');
begin
r := R_REGS;
n := R_REGS;
n.swi_1 := SWI;
n.btn_1 := BTN;
if SWI/=r.swi_1 or BTN/=r.btn_1 then
n.tcnt := slv(unsigned(r.tcnt) + 1);
end if;
btn03 := BTN(3 downto 0);
n.allon := BTN4;
if unsigned(BTN) /= 0 then -- is a button being pressed ?
if r.mode /= c_mode_btst then -- not in btst mode
case btn03 is
when "0001" => -- 0001 single button -> rndm mode
n.mode := c_mode_rndm;
n.rndm := rndminit;
when "0010" => -- 0010 single button -> cnt mode
n.mode := c_mode_cnt;
when "0100" => -- 0100 single button -> swi mode
n.mode := c_mode_swi;
when "1000" => -- 1001 single button -> btst mode
n.mode := c_mode_btst;
n.tcnt := (others=>'0');
when others => -- any 2+ button combo -> led test
n.allon := '1';
end case;
else -- button press in btst mode
case btn03 is
when "1001" => -- 1001 double btn -> rndm mode
n.mode := c_mode_rndm;
when "1010" => -- 1010 double btn -> rndm cnt
n.mode := c_mode_cnt;
when "1100" => -- 1100 double btn -> rndm swi
n.mode := c_mode_swi;
when others => null;
end case;
end if;
else -- no button being pressed
if CE_MSEC = '1' then -- on every usec
n.cnt := slv(unsigned(r.cnt) + 1); -- inc counter
if unsigned(r.cnt(8 downto 0)) = 0 then -- every 1/2 sec (approx.)
n.rndm := crc8_update(r.rndm, SWI); -- update rndm state
end if;
end if;
end if;
if r.allon = '1' then -- if led test selected
n.led := (others=>'1'); -- all led,dsp,dp on
n.dsp := (others=>'1');
n.dp := (others=>'1');
else -- no led test, normal output
case r.mode is
when c_mode_rndm =>
n.led := r.rndm;
n.dsp(7 downto 0) := r.rndm;
n.dsp(15 downto 8) := not r.rndm;
when c_mode_cnt =>
n.led := r.cnt(14 downto 7);
n.dsp := r.cnt;
when c_mode_swi =>
n.led := SWI;
n.dsp(7 downto 0) := SWI;
n.dsp(15 downto 8) := not SWI;
when c_mode_btst =>
n.led := SWI;
n.dsp := r.tcnt;
when others => null;
end case;
n.dp := BTN(3 downto 0);
end if;
N_REGS <= n;
LED <= r.led;
DSP_DAT <= r.dsp;
DSP_DP <= r.dp;
end process proc_next;
end syn;
| gpl-2.0 |
wgml/sysrek | skin_color_segm/ipcore_dir/BINARYZACJA/simulation/BINARYZACJA_tb.vhd | 4 | 4237 | --------------------------------------------------------------------------------
--
-- DIST MEM GEN Core - Top File for the Example Testbench
--
--------------------------------------------------------------------------------
--
-- (c) Copyright 2006_3010 Xilinx, Inc. All rights reserved.
--
-- This file contains confidential and proprietary information
-- of Xilinx, Inc. and is protected under U.S. and
-- international copyright and other intellectual property
-- laws.
--
-- DISCLAIMER
-- This disclaimer is not a license and does not grant any
-- rights to the materials distributed herewith. Except as
-- otherwise provided in a valid license issued to you by
-- Xilinx, and to the maximum extent permitted by applicable
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
-- (2) Xilinx shall not be liable (whether in contract or tort,
-- including negligence, or under any other theory of
-- liability) for any loss or damage of any kind or nature
-- related to, arising under or in connection with these
-- materials, including for any direct, or any indirect,
-- special, incidental, or consequential loss or damage
-- (including loss of data, profits, goodwill, or any type of
-- loss or damage suffered as a result of any action brought
-- by a third party) even if such damage or loss was
-- reasonably foreseeable or Xilinx had been advised of the
-- possibility of the same.
--
-- CRITICAL APPLICATIONS
-- Xilinx products are not designed or intended to be fail-
-- safe, or for use in any application requiring fail-safe
-- performance, such as life-support or safety devices or
-- systems, Class III medical devices, nuclear facilities,
-- applications related to the deployment of airbags, or any
-- other applications that could lead to death, personal
-- injury, or severe property or environmental damage
-- (individually and collectively, "Critical
-- Applications"). Customer assumes the sole risk and
-- liability of any use of Xilinx products in Critical
-- Applications, subject only to applicable laws and
-- regulations governing limitations on product liability.
--
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
-- PART OF THIS FILE AT ALL TIMES.
--------------------------------------------------------------------------------
-- Filename: BINARYZACJA_tb.vhd
-- Description:
-- Testbench Top
--------------------------------------------------------------------------------
-- Author: IP Solutions Division
--
-- History: Sep 12, 2011 - First Release
--------------------------------------------------------------------------------
--
--------------------------------------------------------------------------------
-- Library Declarations
--------------------------------------------------------------------------------
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
LIBRARY work;
USE work.ALL;
ENTITY BINARYZACJA_tb IS
END ENTITY;
ARCHITECTURE BINARYZACJA_tb_ARCH OF BINARYZACJA_tb IS
SIGNAL STATUS : STD_LOGIC_VECTOR(8 DOWNTO 0);
SIGNAL CLK : STD_LOGIC := '1';
SIGNAL RESET : STD_LOGIC;
BEGIN
CLK_GEN: PROCESS BEGIN
CLK <= NOT CLK;
WAIT FOR 100 NS;
CLK <= NOT CLK;
WAIT FOR 100 NS;
END PROCESS;
RST_GEN: PROCESS BEGIN
RESET <= '1';
WAIT FOR 1000 NS;
RESET <= '0';
WAIT;
END PROCESS;
--STOP_SIM: PROCESS BEGIN
-- WAIT FOR 200 US; -- STOP SIMULATION AFTER 1 MS
-- ASSERT FALSE
-- REPORT "END SIMULATION TIME REACHED"
-- SEVERITY FAILURE;
--END PROCESS;
--
PROCESS BEGIN
WAIT UNTIL STATUS(8)='1';
IF( STATUS(7 downto 0)/="0") THEN
ASSERT false
REPORT "Simulation Failed"
SEVERITY FAILURE;
ELSE
ASSERT false
REPORT "Test Completed Successfully"
SEVERITY FAILURE;
END IF;
END PROCESS;
BINARYZACJA_tb_synth_inst:ENTITY work.BINARYZACJA_tb_synth
GENERIC MAP (C_ROM_SYNTH => 0)
PORT MAP(
CLK_IN => CLK,
RESET_IN => RESET,
STATUS => STATUS
);
END ARCHITECTURE;
| gpl-2.0 |
xylnao/w11a-extra | rtl/w11a/pdp11_gpr.vhd | 2 | 5517 | -- $Id: pdp11_gpr.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2006-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: pdp11_gpr - syn
-- Description: pdp11: general purpose registers
--
-- Dependencies: memlib/ram_1swar_1ar_gen
--
-- Test bench: tb/tb_pdp11_core (implicit)
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 13.1; ghdl 0.18-0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.0.4 now numeric_std clean
-- 2008-08-22 161 1.0.3 rename ubf_ -> ibf_; use iblib
-- 2007-12-30 108 1.0.2 use ubf_byte[01]
-- 2007-06-14 56 1.0.1 Use slvtypes.all
-- 2007-05-12 26 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.memlib.all;
use work.iblib.all;
use work.pdp11.all;
-- ----------------------------------------------------------------------------
entity pdp11_gpr is -- general purpose registers
port (
CLK : in slbit; -- clock
DIN : in slv16; -- input data
ASRC : in slv3; -- source register number
ADST : in slv3; -- destination register number
MODE : in slv2; -- processor mode (k=>00,s=>01,u=>11)
RSET : in slbit; -- register set
WE : in slbit; -- write enable
BYTOP : in slbit; -- byte operation (write low byte only)
PCINC : in slbit; -- increment PC
DSRC : out slv16; -- source register data
DDST : out slv16; -- destination register data
PC : out slv16 -- current PC value
);
end pdp11_gpr;
architecture syn of pdp11_gpr is
-- --------------------------------------
-- the register map determines the internal register file storage address
-- of a register. The mapping is
-- ADDR RNUM SET MODE
-- 0000 000 0 -- R0 set 0
-- 0001 001 0 -- R1 set 0
-- 0010 010 0 -- R2 set 0
-- 0011 011 0 -- R3 set 0
-- 0100 100 0 -- R4 set 0
-- 0101 101 0 -- R5 set 0
-- 0110 110 - 00 SP kernel mode
-- 0111 110 - 01 SP supervisor mode
-- 1000 000 1 -- R0 set 1
-- 1001 001 1 -- R1 set 1
-- 1010 010 1 -- R2 set 1
-- 1011 011 1 -- R3 set 1
-- 1100 100 1 -- R4 set 1
-- 1101 101 1 -- R5 set 1
-- 1110 111 - -- PC
-- 1111 110 - 11 SP user mode
procedure do_regmap (
signal RNUM : in slv3; -- register number
signal MODE : in slv2; -- processor mode (k=>00,s=>01,u=>11)
signal RSET : in slbit; -- register set
signal ADDR : out slv4 -- internal address in regfile
) is
begin
if RNUM = c_gpr_pc then
ADDR <= "1110";
elsif RNUM = c_gpr_sp then
ADDR <= MODE(1) & "11" & MODE(0);
else
ADDR <= RSET & RNUM;
end if;
end procedure do_regmap;
-- --------------------------------------
signal MASRC : slv4 := (others=>'0'); -- mapped source register address
signal MADST : slv4 := (others=>'0'); -- mapped destination register address
signal WE1 : slbit := '0'; -- write enable high byte
signal MEMSRC : slv16 := (others=>'0');-- source reg data from memory
signal MEMDST : slv16 := (others=>'0');-- destination reg data from memory
signal R_PC : slv16 := (others=>'0'); -- PC register
begin
do_regmap(RNUM => ASRC, MODE => MODE, RSET => RSET, ADDR => MASRC);
do_regmap(RNUM => ADST, MODE => MODE, RSET => RSET, ADDR => MADST);
WE1 <= WE and not BYTOP;
GPR_LOW : ram_1swar_1ar_gen
generic map (
AWIDTH => 4,
DWIDTH => 8)
port map (
CLK => CLK,
WE => WE,
ADDRA => MADST,
ADDRB => MASRC,
DI => DIN(ibf_byte0),
DOA => MEMDST(ibf_byte0),
DOB => MEMSRC(ibf_byte0));
GPR_HIGH : ram_1swar_1ar_gen
generic map (
AWIDTH => 4,
DWIDTH => 8)
port map (
CLK => CLK,
WE => WE1,
ADDRA => MADST,
ADDRB => MASRC,
DI => DIN(ibf_byte1),
DOA => MEMDST(ibf_byte1),
DOB => MEMSRC(ibf_byte1));
proc_pc : process (CLK)
alias R_PC15 : slv15 is R_PC(15 downto 1); -- upper 15 bit of PC
begin
if rising_edge(CLK) then
if WE='1' and ADST=c_gpr_pc then
R_PC(ibf_byte0) <= DIN(ibf_byte0);
if BYTOP = '0' then
R_PC(ibf_byte1) <= DIN(ibf_byte1);
end if;
elsif PCINC = '1' then
R_PC15 <= slv(unsigned(R_PC15) + 1);
end if;
end if;
end process proc_pc;
DSRC <= R_PC when ASRC=c_gpr_pc else MEMSRC;
DDST <= R_PC when ADST=c_gpr_pc else MEMDST;
PC <= R_PC;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_rlink/nexys3/tb/sys_conf_sim.vhd | 1 | 1605 | -- $Id: sys_conf_sim.vhd 433 2011-11-27 22:04:39Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: sys_conf
-- Description: Definitions for sys_tst_rlink_n3 (for simulation)
--
-- Dependencies: -
-- Tool versions: xst 13.1; ghdl 0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-26 433 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package sys_conf is
constant sys_conf_clkfx_divide : positive := 1;
constant sys_conf_clkfx_multiply : positive := 1;
constant sys_conf_ser2rri_cdinit : integer := 1-1; -- 1 cycle/bit in sim
constant sys_conf_hio_debounce : boolean := false; -- no debouncers
-- derived constants
constant sys_conf_clksys : integer :=
(100000000/sys_conf_clkfx_divide)*sys_conf_clkfx_multiply;
constant sys_conf_clksys_mhz : integer := sys_conf_clksys/1000000;
end package sys_conf;
| gpl-2.0 |
wgml/sysrek | hdmi_example/ipcore_dir/BINARYZACJA/example_design/BINARYZACJA_prod_exdes.vhd | 4 | 5325 |
--------------------------------------------------------------------------------
--
-- Distributed Memory Generator v6.3 Core - Top-level core wrapper
--
--------------------------------------------------------------------------------
--
-- (c) Copyright 2009 - 2010 Xilinx, Inc. All rights reserved.
--
-- This file contains confidential and proprietary information
-- of Xilinx, Inc. and is protected under U.S. and
-- international copyright and other intellectual property
-- laws.
--
-- DISCLAIMER
-- This disclaimer is not a license and does not grant any
-- rights to the materials distributed herewith. Except as
-- otherwise provided in a valid license issued to you by
-- Xilinx, and to the maximum extent permitted by applicable
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
-- (2) Xilinx shall not be liable (whether in contract or tort,
-- including negligence, or under any other theory of
-- liability) for any loss or damage of any kind or nature
-- related to, arising under or in connection with these
-- materials, including for any direct, or any indirect,
-- special, incidental, or consequential loss or damage
-- (including loss of data, profits, goodwill, or any type of
-- loss or damage suffered as a result of any action brought
-- by a third party) even if such damage or loss was
-- reasonably foreseeable or Xilinx had been advised of the
-- possibility of the same.
--
-- CRITICAL APPLICATIONS
-- Xilinx products are not designed or intended to be fail-
-- safe, or for use in any application requiring fail-safe
-- performance, such as life-support or safety devices or
-- systems, Class III medical devices, nuclear facilities,
-- applications related to the deployment of airbags, or any
-- other applications that could lead to death, personal
-- injury, or severe property or environmental damage
-- (individually and collectively, "Critical
-- Applications"). Customer assumes the sole risk and
-- liability of any use of Xilinx products in Critical
-- Applications, subject only to applicable laws and
-- regulations governing limitations on product liability.
--
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
-- PART OF THIS FILE AT ALL TIMES.
--
--------------------------------------------------------------------------------
--
--
-- Description:
-- This is the actual DMG core wrapper.
--
--------------------------------------------------------------------------------
-- Library Declarations
--------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
library unisim;
use unisim.vcomponents.all;
--------------------------------------------------------------------------------
-- Entity Declaration
--------------------------------------------------------------------------------
entity BINARYZACJA_exdes is
PORT (
A : IN STD_LOGIC_VECTOR(8-1-(4*0*boolean'pos(8>4)) downto 0)
:= (OTHERS => '0');
D : IN STD_LOGIC_VECTOR(8-1 downto 0) := (OTHERS => '0');
DPRA : IN STD_LOGIC_VECTOR(8-1 downto 0) := (OTHERS => '0');
SPRA : IN STD_LOGIC_VECTOR(8-1 downto 0) := (OTHERS => '0');
CLK : IN STD_LOGIC := '0';
WE : IN STD_LOGIC := '0';
I_CE : IN STD_LOGIC := '1';
QSPO_CE : IN STD_LOGIC := '1';
QDPO_CE : IN STD_LOGIC := '1';
QDPO_CLK : IN STD_LOGIC := '0';
QSPO_RST : IN STD_LOGIC := '0';
QDPO_RST : IN STD_LOGIC := '0';
QSPO_SRST : IN STD_LOGIC := '0';
QDPO_SRST : IN STD_LOGIC := '0';
SPO : OUT STD_LOGIC_VECTOR(8-1 downto 0);
DPO : OUT STD_LOGIC_VECTOR(8-1 downto 0);
QSPO : OUT STD_LOGIC_VECTOR(8-1 downto 0);
QDPO : OUT STD_LOGIC_VECTOR(8-1 downto 0)
);
end BINARYZACJA_exdes;
architecture xilinx of BINARYZACJA_exdes is
SIGNAL CLK_i : std_logic;
component BINARYZACJA is
PORT (
CLK : IN STD_LOGIC;
QSPO : OUT STD_LOGIC_VECTOR(8-1 downto 0);
A : IN STD_LOGIC_VECTOR(8-1-(4*0*boolean'pos(8>4)) downto 0)
:= (OTHERS => '0')
);
end component;
begin
dmg0 : BINARYZACJA
port map (
CLK => CLK_i,
QSPO => QSPO,
A => A
);
clk_buf: bufg
PORT map(
i => CLK,
o => CLK_i
);
end xilinx;
| gpl-2.0 |
wgml/sysrek | hdmi_example/ipcore_dir/BINARYZACJA/simulation/BINARYZACJA_tb_stim_gen.vhd | 4 | 10579 | --------------------------------------------------------------------------------
--
-- DIST MEM GEN Core - Stimulus Generator For ROM Configuration
--
--------------------------------------------------------------------------------
--
-- (c) Copyright 2006_3010 Xilinx, Inc. All rights reserved.
--
-- This file contains confidential and proprietary information
-- of Xilinx, Inc. and is protected under U.S. and
-- international copyright and other intellectual property
-- laws.
--
-- DISCLAIMER
-- This disclaimer is not a license and does not grant any
-- rights to the materials distributed herewith. Except as
-- otherwise provided in a valid license issued to you by
-- Xilinx, and to the maximum extent permitted by applicable
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
-- (2) Xilinx shall not be liable (whether in contract or tort,
-- including negligence, or under any other theory of
-- liability) for any loss or damage of any kind or nature
-- related to, arising under or in connection with these
-- materials, including for any direct, or any indirect,
-- special, incidental, or consequential loss or damage
-- (including loss of data, profits, goodwill, or any type of
-- loss or damage suffered as a result of any action brought
-- by a third party) even if such damage or loss was
-- reasonably foreseeable or Xilinx had been advised of the
-- possibility of the same.
--
-- CRITICAL APPLICATIONS
-- Xilinx products are not designed or intended to be fail-
-- safe, or for use in any application requiring fail-safe
-- performance, such as life-support or safety devices or
-- systems, Class III medical devices, nuclear facilities,
-- applications related to the deployment of airbags, or any
-- other applications that could lead to death, personal
-- injury, or severe property or environmental damage
-- (individually and collectively, "Critical
-- Applications"). Customer assumes the sole risk and
-- liability of any use of Xilinx products in Critical
-- Applications, subject only to applicable laws and
-- regulations governing limitations on product liability.
--
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
-- PART OF THIS FILE AT ALL TIMES.
--------------------------------------------------------------------------------
--
-- Filename: BINARYZACJA_tb_stim_gen.vhd
--
-- Description:
-- Stimulus Generation For ROM
--
--------------------------------------------------------------------------------
-- Author: IP Solutions Division
--
-- History: Sep 12, 2011 - First Release
--------------------------------------------------------------------------------
--
--------------------------------------------------------------------------------
-- Library Declarations
--------------------------------------------------------------------------------
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
USE IEEE.STD_LOGIC_MISC.ALL;
LIBRARY work;
USE work.ALL;
USE work.BINARYZACJA_TB_PKG.ALL;
ENTITY REGISTER_LOGIC_ROM IS
PORT(
Q : OUT STD_LOGIC;
CLK : IN STD_LOGIC;
RST : IN STD_LOGIC;
D : IN STD_LOGIC
);
END REGISTER_LOGIC_ROM;
ARCHITECTURE REGISTER_ARCH OF REGISTER_LOGIC_ROM IS
SIGNAL Q_O : STD_LOGIC :='0';
BEGIN
Q <= Q_O;
FF_BEH: PROCESS(CLK)
BEGIN
IF(RISING_EDGE(CLK)) THEN
IF(RST /= '0' ) THEN
Q_O <= '0';
ELSE
Q_O <= D;
END IF;
END IF;
END PROCESS;
END REGISTER_ARCH;
LIBRARY STD;
USE STD.TEXTIO.ALL;
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
--USE IEEE.NUMERIC_STD.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
USE IEEE.STD_LOGIC_MISC.ALL;
LIBRARY work;
USE work.ALL;
USE work.BINARYZACJA_TB_PKG.ALL;
ENTITY BINARYZACJA_TB_STIM_GEN IS
GENERIC ( C_ROM_SYNTH : INTEGER := 0
);
PORT (
CLK : IN STD_LOGIC;
RST : IN STD_LOGIC;
A : OUT STD_LOGIC_VECTOR(8-1 downto 0) := (OTHERS => '0');
DATA_IN : IN STD_LOGIC_VECTOR (7 DOWNTO 0); --OUTPUT VECTOR
STATUS : OUT STD_LOGIC:= '0'
);
END BINARYZACJA_TB_STIM_GEN;
ARCHITECTURE BEHAVIORAL OF BINARYZACJA_TB_STIM_GEN IS
FUNCTION std_logic_vector_len(
hex_str : STD_LOGIC_VECTOR;
return_width : INTEGER)
RETURN STD_LOGIC_VECTOR IS
VARIABLE tmp : STD_LOGIC_VECTOR(return_width DOWNTO 0) := (OTHERS => '0');
VARIABLE tmp_z : STD_LOGIC_VECTOR(return_width-(hex_str'LENGTH) DOWNTO 0) := (OTHERS => '0');
BEGIN
tmp := tmp_z & hex_str;
RETURN tmp(return_width-1 DOWNTO 0);
END std_logic_vector_len;
CONSTANT ZERO : STD_LOGIC_VECTOR(31 DOWNTO 0) := (OTHERS => '0');
SIGNAL READ_ADDR_INT : STD_LOGIC_VECTOR(7 DOWNTO 0) := (OTHERS => '0');
SIGNAL READ_ADDR : STD_LOGIC_VECTOR(31 DOWNTO 0) := (OTHERS => '0');
SIGNAL CHECK_READ_ADDR : STD_LOGIC_VECTOR(31 DOWNTO 0) := (OTHERS => '0');
SIGNAL EXPECTED_DATA : STD_LOGIC_VECTOR(7 DOWNTO 0) := (OTHERS => '0');
SIGNAL DO_READ : STD_LOGIC := '0';
SIGNAL CHECK_DATA : STD_LOGIC_VECTOR(3 DOWNTO 0) := (OTHERS => '0');
CONSTANT DEFAULT_DATA : STD_LOGIC_VECTOR(7 DOWNTO 0):= std_logic_vector_len("0",8);
BEGIN
SYNTH_COE: IF(C_ROM_SYNTH =0 ) GENERATE
type mem_type is array (255 downto 0) of std_logic_vector(7 downto 0);
FUNCTION bit_to_sl(input: BIT) RETURN STD_LOGIC IS
VARIABLE temp_return : STD_LOGIC;
BEGIN
IF(input = '0') THEN
temp_return := '0';
ELSE
temp_return := '1';
END IF;
RETURN temp_return;
END bit_to_sl;
function char_to_std_logic (
char : in character)
return std_logic is
variable data : std_logic;
begin
if char = '0' then
data := '0';
elsif char = '1' then
data := '1';
elsif char = 'X' then
data := 'X';
else
assert false
report "character which is not '0', '1' or 'X'."
severity warning;
data := 'U';
end if;
return data;
end char_to_std_logic;
impure FUNCTION init_memory(
C_USE_DEFAULT_DATA : INTEGER;
C_LOAD_INIT_FILE : INTEGER ;
C_INIT_FILE_NAME : STRING ;
DEFAULT_DATA : STD_LOGIC_VECTOR(7 DOWNTO 0);
width : INTEGER;
depth : INTEGER)
RETURN mem_type IS
VARIABLE init_return : mem_type := (OTHERS => (OTHERS => '0'));
FILE init_file : TEXT;
VARIABLE mem_vector : BIT_VECTOR(width-1 DOWNTO 0);
VARIABLE bitline : LINE;
variable bitsgood : boolean := true;
variable bitchar : character;
VARIABLE i : INTEGER;
VARIABLE j : INTEGER;
BEGIN
--Display output message indicating that the behavioral model is being
--initialized
ASSERT (NOT (C_USE_DEFAULT_DATA=1 OR C_LOAD_INIT_FILE=1)) REPORT " Distributed Memory Generator CORE Generator module loading initial data..." SEVERITY NOTE;
-- Setup the default data
-- Default data is with respect to write_port_A and may be wider
-- or narrower than init_return width. The following loops map
-- default data into the memory
IF (C_USE_DEFAULT_DATA=1) THEN
FOR i IN 0 TO depth-1 LOOP
init_return(i) := DEFAULT_DATA;
END LOOP;
END IF;
-- Read in the .mif file
-- The init data is formatted with respect to write port A dimensions.
-- The init_return vector is formatted with respect to minimum width and
-- maximum depth; the following loops map the .mif file into the memory
IF (C_LOAD_INIT_FILE=1) THEN
file_open(init_file, C_INIT_FILE_NAME, read_mode);
i := 0;
WHILE (i < depth AND NOT endfile(init_file)) LOOP
mem_vector := (OTHERS => '0');
readline(init_file, bitline);
-- read(file_buffer, mem_vector(file_buffer'LENGTH-1 DOWNTO 0));
FOR j IN 0 TO width-1 LOOP
read(bitline,bitchar,bitsgood);
init_return(i)(width-1-j) := char_to_std_logic(bitchar);
END LOOP;
i := i + 1;
END LOOP;
file_close(init_file);
END IF;
RETURN init_return;
END FUNCTION;
--***************************************************************
-- convert bit to STD_LOGIC
--***************************************************************
constant c_init : mem_type := init_memory(1,
1,
"BINARYZACJA.mif",
DEFAULT_DATA,
8,
256);
constant rom : mem_type := c_init;
BEGIN
EXPECTED_DATA <= rom(conv_integer(unsigned(check_read_addr)));
CHECKER_RD_AGEN_INST:ENTITY work.BINARYZACJA_TB_AGEN
GENERIC MAP( C_MAX_DEPTH =>256 )
PORT MAP(
CLK => CLK,
RST => RST,
EN => CHECK_DATA(3),
LOAD => '0',
LOAD_VALUE => ZERO,
ADDR_OUT => check_read_addr
);
PROCESS(CLK)
BEGIN
IF(RISING_EDGE(CLK)) THEN
IF(CHECK_DATA(3) ='1') THEN
IF(EXPECTED_DATA = DATA_IN) THEN
STATUS<='0';
ELSE
STATUS <= '1';
END IF;
END IF;
END IF;
END PROCESS;
END GENERATE;
-- Simulatable ROM
--Synthesizable ROM
SYNTH_CHECKER: IF(C_ROM_SYNTH = 1) GENERATE
PROCESS(CLK)
BEGIN
IF(RISING_EDGE(CLK)) THEN
IF(CHECK_DATA(3)='1') THEN
IF(DATA_IN=DEFAULT_DATA) THEN
STATUS <= '0';
ELSE
STATUS <= '1';
END IF;
END IF;
END IF;
END PROCESS;
END GENERATE;
READ_ADDR_INT(7 DOWNTO 0) <= READ_ADDR(7 DOWNTO 0);
A <= READ_ADDR_INT ;
CHECK_DATA(0) <= DO_READ;
RD_AGEN_INST:ENTITY work.BINARYZACJA_TB_AGEN
GENERIC MAP( C_MAX_DEPTH => 256 )
PORT MAP(
CLK => CLK,
RST => RST,
EN => DO_READ,
LOAD => '0',
LOAD_VALUE => ZERO,
ADDR_OUT => READ_ADDR
);
RD_PROCESS: PROCESS (CLK)
BEGIN
IF (RISING_EDGE(CLK)) THEN
IF(RST='1') THEN
DO_READ <= '0';
ELSE
DO_READ <= '1';
END IF;
END IF;
END PROCESS;
BEGIN_EN_REG: FOR I IN 0 TO 3 GENERATE
BEGIN
DFF_RIGHT: IF I=0 GENERATE
BEGIN
SHIFT_INST_0: ENTITY work.REGISTER_LOGIC_ROM
PORT MAP(
Q => CHECK_DATA(1),
CLK => CLK,
RST => RST,
D => CHECK_DATA(0)
);
END GENERATE DFF_RIGHT;
DFF_CE_OTHERS: IF ((I>0) AND (I<3)) GENERATE
BEGIN
SHIFT_INST: ENTITY work.REGISTER_LOGIC_ROM
PORT MAP(
Q => CHECK_DATA(I+1),
CLK => CLK,
RST => RST,
D => CHECK_DATA(I)
);
END GENERATE DFF_CE_OTHERS;
END GENERATE BEGIN_EN_REG;
END ARCHITECTURE;
| gpl-2.0 |
xylnao/w11a-extra | rtl/w11a/pdp11_sys70.vhd | 2 | 3917 | -- $Id: pdp11_sys70.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2008-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: pdp11_sys70 - syn
-- Description: pdp11: 11/70 system registers
--
-- Dependencies: -
-- Test bench: tb/tb_pdp11_core (implicit)
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.1.1 now numeric_std clean
-- 2010-10-17 333 1.1 use ibus V2 interface
-- 2008-08-22 161 1.0.1 use iblib
-- 2008-04-20 137 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.pdp11.all;
use work.iblib.all;
use work.sys_conf.all;
-- ----------------------------------------------------------------------------
entity pdp11_sys70 is -- 11/70 memory system registers
port (
CLK : in slbit; -- clock
CRESET : in slbit; -- console reset
IB_MREQ : in ib_mreq_type; -- ibus request
IB_SRES : out ib_sres_type -- ibus response
);
end pdp11_sys70;
architecture syn of pdp11_sys70 is
constant ibaddr_mbrk : slv16 := slv(to_unsigned(8#177770#,16));
constant ibaddr_sysid : slv16 := slv(to_unsigned(8#177764#,16));
type regs_type is record -- state registers
ibsel_mbrk : slbit; -- ibus select mbrk
ibsel_sysid : slbit; -- ibus select sysid
mbrk : slv8; -- status of mbrk register
end record regs_type;
constant regs_init : regs_type := (
'0','0', -- ibsel_*
mbrk=>(others=>'0') -- mbrk
);
signal R_REGS : regs_type := regs_init;
signal N_REGS : regs_type := regs_init;
begin
proc_regs: process (CLK)
begin
if rising_edge(CLK) then
if CRESET = '1' then
R_REGS <= regs_init;
else
R_REGS <= N_REGS;
end if;
end if;
end process proc_regs;
proc_next: process (R_REGS, IB_MREQ)
variable r : regs_type := regs_init;
variable n : regs_type := regs_init;
variable idout : slv16 := (others=>'0');
variable ibreq : slbit := '0';
variable ibw0 : slbit := '0';
begin
r := R_REGS;
n := R_REGS;
idout := (others=>'0');
ibreq := IB_MREQ.re or IB_MREQ.we;
ibw0 := IB_MREQ.we and IB_MREQ.be0;
-- ibus address decoder
n.ibsel_mbrk := '0';
n.ibsel_sysid := '0';
if IB_MREQ.aval = '1' then
if IB_MREQ.addr = ibaddr_mbrk(12 downto 1) then
n.ibsel_mbrk := '1';
end if;
if IB_MREQ.addr = ibaddr_sysid(12 downto 1) then
n.ibsel_sysid := '1';
end if;
end if;
-- ibus transactions
if r.ibsel_mbrk = '1' then
idout(r.mbrk'range) := r.mbrk;
end if;
if r.ibsel_sysid = '1' then
idout := slv(to_unsigned(8#123456#,16));
end if;
if r.ibsel_mbrk='1' and ibw0='1' then
n.mbrk := IB_MREQ.din(n.mbrk'range);
end if;
N_REGS <= n;
IB_SRES.dout <= idout;
IB_SRES.ack <= (r.ibsel_mbrk or r.ibsel_sysid) and ibreq;
IB_SRES.busy <= '0';
end process proc_next;
end syn;
| gpl-2.0 |
wgml/sysrek | hdmi_example/ipcore_dir/LUT/example_design/LUT_exdes.vhd | 6 | 4054 |
--------------------------------------------------------------------------------
--
-- Distributed Memory Generator Core - Top-level core wrapper
--
--------------------------------------------------------------------------------
--
-- (c) Copyright 2009 - 2010 Xilinx, Inc. All rights reserved.
--
-- This file contains confidential and proprietary information
-- of Xilinx, Inc. and is protected under U.S. and
-- international copyright and other intellectual property
-- laws.
--
-- DISCLAIMER
-- This disclaimer is not a license and does not grant any
-- rights to the materials distributed herewith. Except as
-- otherwise provided in a valid license issued to you by
-- Xilinx, and to the maximum extent permitted by applicable
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
-- (2) Xilinx shall not be liable (whether in contract or tort,
-- including negligence, or under any other theory of
-- liability) for any loss or damage of any kind or nature
-- related to, arising under or in connection with these
-- materials, including for any direct, or any indirect,
-- special, incidental, or consequential loss or damage
-- (including loss of data, profits, goodwill, or any type of
-- loss or damage suffered as a result of any action brought
-- by a third party) even if such damage or loss was
-- reasonably foreseeable or Xilinx had been advised of the
-- possibility of the same.
--
-- CRITICAL APPLICATIONS
-- Xilinx products are not designed or intended to be fail-
-- safe, or for use in any application requiring fail-safe
-- performance, such as life-support or safety devices or
-- systems, Class III medical devices, nuclear facilities,
-- applications related to the deployment of airbags, or any
-- other applications that could lead to death, personal
-- injury, or severe property or environmental damage
-- (individually and collectively, "Critical
-- Applications"). Customer assumes the sole risk and
-- liability of any use of Xilinx products in Critical
-- Applications, subject only to applicable laws and
-- regulations governing limitations on product liability.
--
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
-- PART OF THIS FILE AT ALL TIMES.
--
--------------------------------------------------------------------------------
--
--
-- Description:
-- This is the actual DMG core wrapper.
--
--------------------------------------------------------------------------------
-- Library Declarations
--------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
library unisim;
use unisim.vcomponents.all;
--------------------------------------------------------------------------------
-- Entity Declaration
--------------------------------------------------------------------------------
entity LUT_exdes is
PORT (
CLK : IN STD_LOGIC := '0';
QSPO : OUT STD_LOGIC_VECTOR(8-1 downto 0);
A : IN STD_LOGIC_VECTOR(8-1-(4*0*boolean'pos(8>4)) downto 0)
:= (OTHERS => '0')
);
end LUT_exdes;
architecture xilinx of LUT_exdes is
SIGNAL CLK_i : std_logic;
component LUT is
PORT (
CLK : IN STD_LOGIC;
QSPO : OUT STD_LOGIC_VECTOR(8-1 downto 0);
A : IN STD_LOGIC_VECTOR(8-1-(4*0*boolean'pos(8>4)) downto 0)
:= (OTHERS => '0')
);
end component;
begin
dmg0 : LUT
port map (
CLK => CLK_i,
QSPO => QSPO,
A => A
);
clk_buf: bufg
PORT MAP(
i => CLK,
o => CLK_i
);
end xilinx;
| gpl-2.0 |
wgml/sysrek | skin_color_segm/ipcore_dir/BINARYZACJA/simulation/BINARYZACJA_tb_agen.vhd | 4 | 4340 |
--------------------------------------------------------------------------------
--
-- DIST MEM GEN Core - Address Generator
--
--------------------------------------------------------------------------------
--
-- (c) Copyright 2006_3010 Xilinx, Inc. All rights reserved.
--
-- This file contains confidential and proprietary information
-- of Xilinx, Inc. and is protected under U.S. and
-- international copyright and other intellectual property
-- laws.
--
-- DISCLAIMER
-- This disclaimer is not a license and does not grant any
-- rights to the materials distributed herewith. Except as
-- otherwise provided in a valid license issued to you by
-- Xilinx, and to the maximum extent permitted by applicable
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
-- (2) Xilinx shall not be liable (whether in contract or tort,
-- including negligence, or under any other theory of
-- liability) for any loss or damage of any kind or nature
-- related to, arising under or in connection with these
-- materials, including for any direct, or any indirect,
-- special, incidental, or consequential loss or damage
-- (including loss of data, profits, goodwill, or any type of
-- loss or damage suffered as a result of any action brought
-- by a third party) even if such damage or loss was
-- reasonably foreseeable or Xilinx had been advised of the
-- possibility of the same.
--
-- CRITICAL APPLICATIONS
-- Xilinx products are not designed or intended to be fail-
-- safe, or for use in any application requiring fail-safe
-- performance, such as life-support or safety devices or
-- systems, Class III medical devices, nuclear facilities,
-- applications related to the deployment of airbags, or any
-- other applications that could lead to death, personal
-- injury, or severe property or environmental damage
-- (individually and collectively, "Critical
-- Applications"). Customer assumes the sole risk and
-- liability of any use of Xilinx products in Critical
-- Applications, subject only to applicable laws and
-- regulations governing limitations on product liability.
--
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
-- PART OF THIS FILE AT ALL TIMES.
--------------------------------------------------------------------------------
--
-- Filename: BINARYZACJA_tb_agen.vhd
--
-- Description:
-- Address Generator
--
--------------------------------------------------------------------------------
-- Author: IP Solutions Division
--
-- History: Sep 12, 2011 - First Release
--------------------------------------------------------------------------------
--
--------------------------------------------------------------------------------
-- Library Declarations
--------------------------------------------------------------------------------
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
LIBRARY work;
USE work.ALL;
ENTITY BINARYZACJA_TB_AGEN IS
GENERIC (
C_MAX_DEPTH : INTEGER := 1024 ;
RST_VALUE : STD_LOGIC_VECTOR(31 DOWNTO 0) := (OTHERS=> '0');
RST_INC : INTEGER := 0);
PORT (
CLK : IN STD_LOGIC;
RST : IN STD_LOGIC;
EN : IN STD_LOGIC;
LOAD :IN STD_LOGIC;
LOAD_VALUE : IN STD_LOGIC_VECTOR (31 DOWNTO 0) := (OTHERS => '0');
ADDR_OUT : OUT STD_LOGIC_VECTOR (31 DOWNTO 0) --OUTPUT VECTOR
);
END BINARYZACJA_TB_AGEN;
ARCHITECTURE BEHAVIORAL OF BINARYZACJA_TB_AGEN IS
SIGNAL ADDR_TEMP : STD_LOGIC_VECTOR(31 DOWNTO 0) := (OTHERS =>'0');
BEGIN
ADDR_OUT <= ADDR_TEMP;
PROCESS(CLK)
BEGIN
IF(RISING_EDGE(CLK)) THEN
IF(RST='1') THEN
ADDR_TEMP<= RST_VALUE + conv_std_logic_vector(RST_INC,32 );
ELSE
IF(EN='1') THEN
IF(LOAD='1') THEN
ADDR_TEMP <=LOAD_VALUE;
ELSE
IF(ADDR_TEMP = C_MAX_DEPTH-1) THEN
ADDR_TEMP<= RST_VALUE + conv_std_logic_vector(RST_INC,32 );
ELSE
ADDR_TEMP <= ADDR_TEMP + '1';
END IF;
END IF;
END IF;
END IF;
END IF;
END PROCESS;
END ARCHITECTURE;
| gpl-2.0 |
xylnao/w11a-extra | rtl/w11a/pdp11_tmu.vhd | 1 | 8622 | -- $Id: pdp11_tmu.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2008-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: pdp11_tmu - sim
-- Description: pdp11: trace and monitor unit
--
-- Dependencies: -
--
-- Test bench: tb/tb_pdp11_core (implicit)
-- Target Devices: generic
-- Tool versions: ghdl 0.18-0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.0.7 now numeric_std clean
-- 2010-10-17 333 1.0.6 use ibus V2 interface
-- 2010-06-26 309 1.0.5 add ibmreq.dip,.cacc,.racc to trace
-- 2009-05-10 214 1.0.4 add ENA signal (trace enable)
-- 2008-12-14 177 1.0.3 write gpr_* of DM_STAT_DP and dp_ireg_we_last
-- 2008-12-13 176 1.0.2 write only cycle currently used by tmu_conf
-- 2008-08-22 161 1.0.1 rename ubf_ -> ibf_
-- 2008-04-19 137 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use ieee.std_logic_textio.all;
use std.textio.all;
use work.slvtypes.all;
use work.simlib.all;
use work.simbus.all;
use work.pdp11.all;
-- ----------------------------------------------------------------------------
entity pdp11_tmu is -- trace and monitor unit
port (
CLK : in slbit; -- clock
ENA : in slbit := '0'; -- enable trace output
DM_STAT_DP : in dm_stat_dp_type; -- DM dpath
DM_STAT_VM : in dm_stat_vm_type; -- DM vmbox
DM_STAT_CO : in dm_stat_co_type; -- DM core
DM_STAT_SY : in dm_stat_sy_type -- DM system
);
end pdp11_tmu;
architecture sim of pdp11_tmu is
signal R_FIRST : slbit := '1';
begin
proc_tm: process (CLK)
variable oline : line;
variable ipsw : slv16 := (others=>'0');
variable ibaddr : slv16 := (others=>'0');
variable emaddr : slv22 := (others=>'0');
variable dp_ireg_we_last : slbit := '0';
variable vm_ibsres_busy_last : slbit := '0';
variable vm_ibsres_ack_last : slbit := '0';
variable wcycle : boolean := false;
file ofile : text open write_mode is "tmu_ofile";
begin
if rising_edge(CLK) then
if R_FIRST = '1' then
R_FIRST <= '0';
write(oline, string'("#"));
write(oline, string'(" clkcycle:d"));
write(oline, string'(" cpu:o"));
write(oline, string'(" dp.pc:o"));
write(oline, string'(" dp.psw:o"));
write(oline, string'(" dp.ireg:o"));
write(oline, string'(" dp.ireg_we:b"));
write(oline, string'(" dp.ireg_we_last:b")); -- is ireg_we last cycle
write(oline, string'(" dp.dsrc:o"));
write(oline, string'(" dp.ddst:o"));
write(oline, string'(" dp.dtmp:o"));
write(oline, string'(" dp.dres:o"));
write(oline, string'(" dp.gpr_adst:o"));
write(oline, string'(" dp.gpr_mode:o"));
write(oline, string'(" dp.gpr_bytop:b"));
write(oline, string'(" dp.gpr_we:b"));
write(oline, string'(" vm.ibmreq.aval:b"));
write(oline, string'(" vm.ibmreq.re:b"));
write(oline, string'(" vm.ibmreq.we:b"));
write(oline, string'(" vm.ibmreq.rmw:b"));
write(oline, string'(" vm.ibmreq.be0:b"));
write(oline, string'(" vm.ibmreq.be1:b"));
write(oline, string'(" vm.ibmreq.cacc:b"));
write(oline, string'(" vm.ibmreq.racc:b"));
write(oline, string'(" vm.ibmreq.addr:o"));
write(oline, string'(" vm.ibmreq.din:o"));
write(oline, string'(" vm.ibsres.ack:b"));
write(oline, string'(" vm.ibsres.busy:b"));
write(oline, string'(" vm.ibsres.dout:o"));
write(oline, string'(" co.cpugo:b"));
write(oline, string'(" co.cpuhalt:b"));
write(oline, string'(" sy.emmreq.req:b"));
write(oline, string'(" sy.emmreq.we:b"));
write(oline, string'(" sy.emmreq.be:b"));
write(oline, string'(" sy.emmreq.cancel:b"));
write(oline, string'(" sy.emmreq.addr:o"));
write(oline, string'(" sy.emmreq.din:o"));
write(oline, string'(" sy.emsres.ack_r:b"));
write(oline, string'(" sy.emsres.ack_w:b"));
write(oline, string'(" sy.emsres.dout:o"));
write(oline, string'(" sy.chit:b"));
writeline(ofile, oline);
end if;
ipsw := (others=>'0');
ipsw(psw_ibf_cmode) := DM_STAT_DP.psw.cmode;
ipsw(psw_ibf_pmode) := DM_STAT_DP.psw.pmode;
ipsw(psw_ibf_rset) := DM_STAT_DP.psw.rset;
ipsw(psw_ibf_pri) := DM_STAT_DP.psw.pri;
ipsw(psw_ibf_tflag) := DM_STAT_DP.psw.tflag;
ipsw(psw_ibf_cc) := DM_STAT_DP.psw.cc;
ibaddr := "1110000000000000";
ibaddr(DM_STAT_VM.ibmreq.addr'range) := DM_STAT_VM.ibmreq.addr;
emaddr := (others=>'0');
emaddr(DM_STAT_SY.emmreq.addr'range) := DM_STAT_SY.emmreq.addr;
wcycle := false;
if dp_ireg_we_last='1' or
DM_STAT_DP.gpr_we='1' or
DM_STAT_SY.emmreq.req='1' or
DM_STAT_SY.emsres.ack_r='1' or
DM_STAT_SY.emsres.ack_w='1' or
DM_STAT_SY.emmreq.cancel='1' or
DM_STAT_VM.ibmreq.re='1' or
DM_STAT_VM.ibmreq.we='1' or
DM_STAT_VM.ibsres.ack='1'
then
wcycle := true;
end if;
if DM_STAT_VM.ibsres.busy='0' and
(vm_ibsres_busy_last='1' and vm_ibsres_ack_last='0')
then
wcycle := true;
end if;
if ENA = '0' then -- if not enabled
wcycle := false; -- force to not logged...
end if;
if wcycle then
write(oline, to_integer(unsigned(SB_CLKCYCLE)), right, 9);
write(oline, string'(" 0"));
writeoct(oline, DM_STAT_DP.pc, right, 7);
writeoct(oline, ipsw, right, 7);
writeoct(oline, DM_STAT_DP.ireg, right, 7);
write(oline, DM_STAT_DP.ireg_we, right, 2);
write(oline, dp_ireg_we_last, right, 2);
writeoct(oline, DM_STAT_DP.dsrc, right, 7);
writeoct(oline, DM_STAT_DP.ddst, right, 7);
writeoct(oline, DM_STAT_DP.dtmp, right, 7);
writeoct(oline, DM_STAT_DP.dres, right, 7);
writeoct(oline, DM_STAT_DP.gpr_adst, right, 2);
writeoct(oline, DM_STAT_DP.gpr_mode, right, 2);
write(oline, DM_STAT_DP.gpr_bytop, right, 2);
write(oline, DM_STAT_DP.gpr_we, right, 2);
write(oline, DM_STAT_VM.ibmreq.aval, right, 2);
write(oline, DM_STAT_VM.ibmreq.re, right, 2);
write(oline, DM_STAT_VM.ibmreq.we, right, 2);
write(oline, DM_STAT_VM.ibmreq.rmw, right, 2);
write(oline, DM_STAT_VM.ibmreq.be0, right, 2);
write(oline, DM_STAT_VM.ibmreq.be1, right, 2);
write(oline, DM_STAT_VM.ibmreq.cacc, right, 2);
write(oline, DM_STAT_VM.ibmreq.racc, right, 2);
writeoct(oline, ibaddr, right, 7);
writeoct(oline, DM_STAT_VM.ibmreq.din, right, 7);
write(oline, DM_STAT_VM.ibsres.ack, right, 2);
write(oline, DM_STAT_VM.ibsres.busy, right, 2);
writeoct(oline, DM_STAT_VM.ibsres.dout, right, 7);
write(oline, DM_STAT_CO.cpugo, right, 2);
write(oline, DM_STAT_CO.cpuhalt, right, 2);
write(oline, DM_STAT_SY.emmreq.req, right, 2);
write(oline, DM_STAT_SY.emmreq.we, right, 2);
write(oline, DM_STAT_SY.emmreq.be, right, 3);
write(oline, DM_STAT_SY.emmreq.cancel, right, 2);
writeoct(oline, emaddr, right, 9);
writeoct(oline, DM_STAT_SY.emmreq.din, right, 7);
write(oline, DM_STAT_SY.emsres.ack_r, right, 2);
write(oline, DM_STAT_SY.emsres.ack_w, right, 2);
writeoct(oline, DM_STAT_SY.emsres.dout, right, 7);
write(oline, DM_STAT_SY.chit, right, 2);
writeline(ofile, oline);
end if;
dp_ireg_we_last := DM_STAT_DP.ireg_we;
vm_ibsres_busy_last := DM_STAT_VM.ibsres.busy;
vm_ibsres_ack_last := DM_STAT_VM.ibsres.ack;
end if;
end process proc_tm;
end sim;
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_snhumanio/atlys/sys_conf.vhd | 2 | 1235 | -- $Id: sys_conf.vhd 414 2011-10-11 19:38:12Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: sys_conf
-- Description: Definitions for sys_tst_snhumanio_atlys (for synthesis)
--
-- Dependencies: -
-- Tool versions: xst 13.1; ghdl 0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-10-11 414 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package sys_conf is
constant sys_conf_hio_debounce : boolean := true; -- instantiate debouncers
end package sys_conf;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/xlib/iob_reg_o_gen.vhd | 2 | 2069 | -- $Id: iob_reg_o_gen.vhd 426 2011-11-18 18:14:08Z mueller $
--
-- Copyright 2007- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: iob_reg_o_gen - syn
-- Description: Registered IOB, output only, vector
--
-- Dependencies: -
-- Test bench: -
-- Target Devices: generic Spartan, Virtex
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2; ghdl 0.18-0.25
-- Revision History:
-- Date Rev Version Comment
-- 2007-12-16 101 1.0.1 add INIT generic port
-- 2007-12-08 100 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
use work.xlib.all;
entity iob_reg_o_gen is -- registered IOB, output, vector
generic (
DWIDTH : positive := 16; -- data port width
INIT : slbit := '0'); -- initial state
port (
CLK : in slbit; -- clock
CE : in slbit := '1'; -- clock enable
DO : in slv(DWIDTH-1 downto 0); -- output data
PAD : out slv(DWIDTH-1 downto 0) -- i/o pad
);
end iob_reg_o_gen;
architecture syn of iob_reg_o_gen is
signal R_DO : slv(DWIDTH-1 downto 0) := (others=>INIT);
attribute iob : string;
attribute iob of R_DO : signal is "true";
begin
proc_regs: process (CLK)
begin
if rising_edge(CLK) then
if CE = '1' then
R_DO <= DO;
end if;
end if;
end process proc_regs;
PAD <= R_DO;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_serloop/nexys3/tb/sys_conf1_sim.vhd | 2 | 1829 | -- $Id: sys_conf1_sim.vhd 441 2011-12-20 17:01:16Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: sys_conf
-- Description: Definitions for sys_tst_serloop1_n3 (for test bench)
--
-- Dependencies: -
-- Tool versions: xst 13.1; ghdl 0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-12-11 438 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package sys_conf is
-- in simulation a usec is shortened to 20 cycles (0.2 usec) and a msec
-- to 100 cycles (1 usec). This affects the pulse generators (usec) and
-- mainly the autobauder. A break will be detected after 128 msec periods,
-- this in simulation after 128 usec or 6400 cycles. This is compatible with
-- bitrates of 115200 baud or higher (115200 <-> 8.68 usec <-> 521 cycles)
constant sys_conf_clkdiv_usecdiv : integer := 20; -- default usec
constant sys_conf_clkdiv_msecdiv : integer := 5; -- shortened !
constant sys_conf_hio_debounce : boolean := false; -- no debouncers
constant sys_conf_uart_cdinit : integer := 1-1; -- 1 cycle/bit in sim
end package sys_conf;
| gpl-2.0 |
wgml/sysrek | skin_color_segm/ipcore_dir/delayLineBRAM/example_design/delayLineBRAM_exdes.vhd | 2 | 4641 |
--------------------------------------------------------------------------------
--
-- BLK MEM GEN v7.1 Core - Top-level core wrapper
--
--------------------------------------------------------------------------------
--
-- (c) Copyright 2006-2010 Xilinx, Inc. All rights reserved.
--
-- This file contains confidential and proprietary information
-- of Xilinx, Inc. and is protected under U.S. and
-- international copyright and other intellectual property
-- laws.
--
-- DISCLAIMER
-- This disclaimer is not a license and does not grant any
-- rights to the materials distributed herewith. Except as
-- otherwise provided in a valid license issued to you by
-- Xilinx, and to the maximum extent permitted by applicable
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
-- (2) Xilinx shall not be liable (whether in contract or tort,
-- including negligence, or under any other theory of
-- liability) for any loss or damage of any kind or nature
-- related to, arising under or in connection with these
-- materials, including for any direct, or any indirect,
-- special, incidental, or consequential loss or damage
-- (including loss of data, profits, goodwill, or any type of
-- loss or damage suffered as a result of any action brought
-- by a third party) even if such damage or loss was
-- reasonably foreseeable or Xilinx had been advised of the
-- possibility of the same.
--
-- CRITICAL APPLICATIONS
-- Xilinx products are not designed or intended to be fail-
-- safe, or for use in any application requiring fail-safe
-- performance, such as life-support or safety devices or
-- systems, Class III medical devices, nuclear facilities,
-- applications related to the deployment of airbags, or any
-- other applications that could lead to death, personal
-- injury, or severe property or environmental damage
-- (individually and collectively, "Critical
-- Applications"). Customer assumes the sole risk and
-- liability of any use of Xilinx products in Critical
-- Applications, subject only to applicable laws and
-- regulations governing limitations on product liability.
--
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
-- PART OF THIS FILE AT ALL TIMES.
--------------------------------------------------------------------------------
--
-- Filename: delayLineBRAM_exdes.vhd
--
-- Description:
-- This is the actual BMG core wrapper.
--
--------------------------------------------------------------------------------
-- Author: IP Solutions Division
--
-- History: August 31, 2005 - First Release
--------------------------------------------------------------------------------
--
--------------------------------------------------------------------------------
-- Library Declarations
--------------------------------------------------------------------------------
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
LIBRARY UNISIM;
USE UNISIM.VCOMPONENTS.ALL;
--------------------------------------------------------------------------------
-- Entity Declaration
--------------------------------------------------------------------------------
ENTITY delayLineBRAM_exdes IS
PORT (
--Inputs - Port A
WEA : IN STD_LOGIC_VECTOR(0 DOWNTO 0);
ADDRA : IN STD_LOGIC_VECTOR(9 DOWNTO 0);
DINA : IN STD_LOGIC_VECTOR(16 DOWNTO 0);
DOUTA : OUT STD_LOGIC_VECTOR(16 DOWNTO 0);
CLKA : IN STD_LOGIC
);
END delayLineBRAM_exdes;
ARCHITECTURE xilinx OF delayLineBRAM_exdes IS
COMPONENT BUFG IS
PORT (
I : IN STD_ULOGIC;
O : OUT STD_ULOGIC
);
END COMPONENT;
COMPONENT delayLineBRAM IS
PORT (
--Port A
WEA : IN STD_LOGIC_VECTOR(0 DOWNTO 0);
ADDRA : IN STD_LOGIC_VECTOR(9 DOWNTO 0);
DINA : IN STD_LOGIC_VECTOR(16 DOWNTO 0);
DOUTA : OUT STD_LOGIC_VECTOR(16 DOWNTO 0);
CLKA : IN STD_LOGIC
);
END COMPONENT;
SIGNAL CLKA_buf : STD_LOGIC;
SIGNAL CLKB_buf : STD_LOGIC;
SIGNAL S_ACLK_buf : STD_LOGIC;
BEGIN
bufg_A : BUFG
PORT MAP (
I => CLKA,
O => CLKA_buf
);
bmg0 : delayLineBRAM
PORT MAP (
--Port A
WEA => WEA,
ADDRA => ADDRA,
DINA => DINA,
DOUTA => DOUTA,
CLKA => CLKA_buf
);
END xilinx;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/genlib/genlib.vhd | 1 | 6631 | -- $Id: genlib.vhd 422 2011-11-10 18:44:06Z mueller $
--
-- Copyright 2007-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: genlib
-- Description: some general purpose components
--
-- Dependencies: -
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2, 11.4; ghdl 0.18-0.26
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-09 421 1.0.8 add cdc_pulse
-- 2010-04-17 277 1.0.7 timer: no default for START,DONE,BUSY; drop STOP
-- 2010-04-02 273 1.0.6 add timer
-- 2008-01-20 112 1.0.5 rename clkgen->clkdivce
-- 2007-12-26 106 1.0.4 added gray_cnt_(4|5|n|gen) and gray2bin_gen
-- 2007-12-25 105 1.0.3 RESET:='0' defaults
-- 2007-06-17 58 1.0.2 added debounce_gen
-- 2007-06-16 57 1.0.1 added cnt_array_dram, cnt_array_regs
-- 2007-06-03 45 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package genlib is
component clkdivce is -- generate usec/msec ce pulses
generic (
CDUWIDTH : positive := 6; -- usec clock divider width
USECDIV : positive := 50; -- divider ratio for usec pulse
MSECDIV : positive := 1000); -- divider ratio for msec pulse
port (
CLK : in slbit; -- input clock
CE_USEC : out slbit; -- usec pulse
CE_MSEC : out slbit -- msec pulse
);
end component;
component cnt_array_dram is -- counter array, dram based
generic (
AWIDTH : positive := 4; -- address width
DWIDTH : positive := 16); -- data width
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- clear counters
CE : in slv(2**AWIDTH-1 downto 0); -- count enables
ADDR : out slv(AWIDTH-1 downto 0); -- counter address
DATA : out slv(DWIDTH-1 downto 0); -- counter data
ACT : out slbit -- active (not reseting)
);
end component;
component cnt_array_regs is -- counter array, register based
generic (
AWIDTH : positive := 4; -- address width
DWIDTH : positive := 16); -- data width
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- clear counters
CE : in slv(2**AWIDTH-1 downto 0); -- count enables
ADDR : in slv(AWIDTH-1 downto 0); -- address
DATA : out slv(DWIDTH-1 downto 0) -- counter data
);
end component;
component debounce_gen is -- debounce, generic vector
generic (
CWIDTH : positive := 2; -- clock interval counter width
CEDIV : positive := 3; -- clock interval divider
DWIDTH : positive := 8); -- data width
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- reset
CE_INT : in slbit; -- clock interval enable (usec or msec)
DI : in slv(DWIDTH-1 downto 0); -- data in
DO : out slv(DWIDTH-1 downto 0) -- data out
);
end component;
component gray_cnt_gen is -- gray code counter, generic vector
generic (
DWIDTH : positive := 4); -- data width
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- reset
CE : in slbit := '1'; -- count enable
DATA : out slv(DWIDTH-1 downto 0) -- data out
);
end component;
component gray_cnt_4 is -- 4 bit gray code counter (ROM based)
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- reset
CE : in slbit := '1'; -- count enable
DATA : out slv4 -- data out
);
end component;
component gray_cnt_5 is -- 5 bit gray code counter (ROM based)
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- reset
CE : in slbit := '1'; -- count enable
DATA : out slv5 -- data out
);
end component;
component gray_cnt_n is -- n bit gray code counter
generic (
DWIDTH : positive := 8); -- data width
port (
CLK : in slbit; -- clock
RESET : in slbit := '0'; -- reset
CE : in slbit := '1'; -- count enable
DATA : out slv(DWIDTH-1 downto 0) -- data out
);
end component;
component gray2bin_gen is -- gray->bin converter, generic vector
generic (
DWIDTH : positive := 4); -- data width
port (
DI : in slv(DWIDTH-1 downto 0); -- gray code input
DO : out slv(DWIDTH-1 downto 0) -- binary code output
);
end component;
component timer is -- retriggerable timer
generic (
TWIDTH : positive := 4; -- timer counter width
RETRIG : boolean := true); -- re-triggerable true/false
port (
CLK : in slbit; -- clock
CE : in slbit := '1'; -- clock enable
DELAY : in slv(TWIDTH-1 downto 0) := (others=>'1'); -- timer delay
START : in slbit; -- start timer
STOP : in slbit := '0'; -- stop timer
DONE : out slbit; -- mark last delay cycle
BUSY : out slbit -- timer running
);
end component;
component cdc_pulse is -- clock domain cross for pulse
generic (
POUT_SINGLE : boolean := false; -- if true: single cycle pout
BUSY_WACK : boolean := false); -- if true: busy waits for ack
port (
CLKM : in slbit; -- clock master
RESET : in slbit := '0'; -- M|reset
CLKS : in slbit; -- clock slave
PIN : in slbit; -- M|pulse in
BUSY : out slbit; -- M|busy
POUT : out slbit -- S|pulse out
);
end component;
end package genlib;
| gpl-2.0 |
xylnao/w11a-extra | rtl/ibus/ibdr_minisys.vhd | 2 | 7065 | -- $Id: ibdr_minisys.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2008-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: ibdr_minisys - syn
-- Description: ibus(rem) devices for minimal system:SDR+KW+DL+RK
--
-- Dependencies: ibdr_sdreg
-- ibd_kw11l
-- ibdr_dl11
-- ibdr_rk11
-- ib_sres_or_4
-- ib_intmap
-- Test bench: -
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
--
-- Synthesized (xst):
-- Date Rev ise Target flop lutl lutm slic t peri
-- 2010-10-17 333 12.1 M53d xc3s1000-4 128 469 16 265 s 7.8
-- 2010-10-17 314 12.1 M53d xc3s1000-4 122 472 16 269 s 7.6
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.1.2 now numeric_std clean
-- 2010-10-23 335 1.1.1 rename RRI_LAM->RB_LAM;
-- 2010-06-11 303 1.1 use IB_MREQ.racc instead of RRI_REQ
-- 2009-07-12 233 1.0.7 reorder ports, add CE_USEC; add RESET and CE_USEC
-- to _dl11
-- 2009-05-31 221 1.0.6 add RESET to kw11l;
-- 2009-05-24 219 1.0.5 _rk11 uses now CE_MSEC
-- 2008-08-22 161 1.0.4 use iblib, ibdlib
-- 2008-05-09 144 1.0.3 use EI_ACK with _kw11l, _dl11
-- 2008-04-18 136 1.0.2 add RESET port, use for ibdr_sdreg
-- 2008-01-20 113 1.0.1 RRI_LAM now vector
-- 2008-01-20 112 1.0 Initial version
------------------------------------------------------------------------------
--
-- mini system setup
--
-- ibbase vec pri slot attn device name
--
-- 177546 100 6 4 - KW11-L
-- 177400 220 5 3 4 RK11
-- 177560 060 4 2 1 DL11-RX 1st
-- 064 4 1 ^ DL11-TX 1st
-- 177570 - - - - sdreg
--
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.iblib.all;
use work.ibdlib.all;
-- ----------------------------------------------------------------------------
entity ibdr_minisys is -- ibus(rem) minimal sys:SDR+KW+DL+RK
port (
CLK : in slbit; -- clock
CE_USEC : in slbit; -- usec pulse
CE_MSEC : in slbit; -- msec pulse
RESET : in slbit; -- reset
BRESET : in slbit; -- ibus reset
RB_LAM : out slv16_1; -- remote attention vector
IB_MREQ : in ib_mreq_type; -- ibus request
IB_SRES : out ib_sres_type; -- ibus response
EI_ACKM : in slbit; -- interrupt acknowledge (from master)
EI_PRI : out slv3; -- interrupt priority (to cpu)
EI_VECT : out slv9_2; -- interrupt vector (to cpu)
DISPREG : out slv16 -- display register
);
end ibdr_minisys;
architecture syn of ibdr_minisys is
constant conf_intmap : intmap_array_type :=
(intmap_init, -- line 15
intmap_init, -- line 14
intmap_init, -- line 13
intmap_init, -- line 12
intmap_init, -- line 11
intmap_init, -- line 10
intmap_init, -- line 9
intmap_init, -- line 8
intmap_init, -- line 7
intmap_init, -- line 6
intmap_init, -- line 5
(8#100#,6), -- line 4 KW11-L
(8#220#,5), -- line 3 RK11
(8#060#,4), -- line 2 DL11-RX
(8#064#,4), -- line 1 DL11-TX
intmap_init -- line 0
);
signal RB_LAM_DL11 : slbit := '0';
signal RB_LAM_RK11 : slbit := '0';
signal IB_SRES_SDREG : ib_sres_type := ib_sres_init;
signal IB_SRES_KW11L : ib_sres_type := ib_sres_init;
signal IB_SRES_DL11 : ib_sres_type := ib_sres_init;
signal IB_SRES_RK11 : ib_sres_type := ib_sres_init;
signal EI_REQ : slv16_1 := (others=>'0');
signal EI_ACK : slv16_1 := (others=>'0');
signal EI_REQ_KW11L : slbit := '0';
signal EI_REQ_DL11RX : slbit := '0';
signal EI_REQ_DL11TX : slbit := '0';
signal EI_REQ_RK11 : slbit := '0';
signal EI_ACK_KW11L : slbit := '0';
signal EI_ACK_DL11RX : slbit := '0';
signal EI_ACK_DL11TX : slbit := '0';
signal EI_ACK_RK11 : slbit := '0';
begin
SDREG : ibdr_sdreg
port map (
CLK => CLK,
RESET => RESET,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_SDREG,
DISPREG => DISPREG
);
KW11L : ibd_kw11l
port map (
CLK => CLK,
CE_MSEC => CE_MSEC,
RESET => RESET,
BRESET => BRESET,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_KW11L,
EI_REQ => EI_REQ_KW11L,
EI_ACK => EI_ACK_KW11L
);
DL11 : ibdr_dl11
port map (
CLK => CLK,
CE_USEC => CE_USEC,
RESET => RESET,
BRESET => BRESET,
RB_LAM => RB_LAM_DL11,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_DL11,
EI_REQ_RX => EI_REQ_DL11RX,
EI_REQ_TX => EI_REQ_DL11TX,
EI_ACK_RX => EI_ACK_DL11RX,
EI_ACK_TX => EI_ACK_DL11TX
);
RK11 : ibdr_rk11
port map (
CLK => CLK,
CE_MSEC => CE_MSEC,
BRESET => BRESET,
RB_LAM => RB_LAM_RK11,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_RK11,
EI_REQ => EI_REQ_RK11,
EI_ACK => EI_ACK_RK11
);
SRES_OR : ib_sres_or_4
port map (
IB_SRES_1 => IB_SRES_SDREG,
IB_SRES_2 => IB_SRES_KW11L,
IB_SRES_3 => IB_SRES_DL11,
IB_SRES_4 => IB_SRES_RK11,
IB_SRES_OR => IB_SRES
);
INTMAP : ib_intmap
generic map (
INTMAP => conf_intmap)
port map (
EI_REQ => EI_REQ,
EI_ACKM => EI_ACKM,
EI_ACK => EI_ACK,
EI_PRI => EI_PRI,
EI_VECT => EI_VECT
);
EI_REQ(4) <= EI_REQ_KW11L;
EI_REQ(3) <= EI_REQ_RK11;
EI_REQ(2) <= EI_REQ_DL11RX;
EI_REQ(1) <= EI_REQ_DL11TX;
EI_ACK_KW11L <= EI_ACK(4);
EI_ACK_RK11 <= EI_ACK(3);
EI_ACK_DL11RX <= EI_ACK(2);
EI_ACK_DL11TX <= EI_ACK(1);
RB_LAM(1) <= RB_LAM_DL11;
RB_LAM(2) <= '0'; -- for 2nd DL11
RB_LAM(3) <= '0'; -- for DZ11
RB_LAM(4) <= RB_LAM_RK11;
RB_LAM(15 downto 5) <= (others=>'0');
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/bplib/nxcramlib/tb/tb_nx_cram_memctl.vhd | 1 | 11877 | -- $Id: tb_nx_cram_memctl.vhd 433 2011-11-27 22:04:39Z mueller $
--
-- Copyright 2010-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: tb_nx_cram_memctl - sim
-- Description: Test bench for nx_cram_memctl
--
-- Dependencies: vlib/simlib/simclk
-- bplib/micron/mt45w8mw16b
-- tbd_nx_cram_memctl [UUT, abstact]
--
-- To test: nx_cram_memctl_as (via tbd_nx_cram_memctl_as)
--
-- Target Devices: generic
-- Tool versions: xst 11.4, 13.1; ghdl 0.26-0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-26 433 1.3 renamed from tb_n2_cram_memctl
-- 2011-11-21 432 1.2 now numeric_std clean; update O_FLA_CE_N usage
-- 2010-05-30 297 1.1 use abstact uut tbd_nx_cram_memctl
-- 2010-05-23 293 1.0 Initial version (derived from tb_s3_sram_memctl)
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use ieee.std_logic_textio.all;
use std.textio.all;
use work.slvtypes.all;
use work.simlib.all;
entity tb_nx_cram_memctl is
end tb_nx_cram_memctl;
architecture sim of tb_nx_cram_memctl is
component tbd_nx_cram_memctl is -- CRAM driver (abstract) [tb design]
port (
CLK : in slbit; -- clock
RESET : in slbit; -- reset
REQ : in slbit; -- request
WE : in slbit; -- write enable
BUSY : out slbit; -- controller busy
ACK_R : out slbit; -- acknowledge read
ACK_W : out slbit; -- acknowledge write
ACT_R : out slbit; -- signal active read
ACT_W : out slbit; -- signal active write
ADDR : in slv22; -- address (32 bit word address)
BE : in slv4; -- byte enable
DI : in slv32; -- data in (memory view)
DO : out slv32; -- data out (memory view)
O_MEM_CE_N : out slbit; -- cram: chip enable (act.low)
O_MEM_BE_N : out slv2; -- cram: byte enables (act.low)
O_MEM_WE_N : out slbit; -- cram: write enable (act.low)
O_MEM_OE_N : out slbit; -- cram: output enable (act.low)
O_MEM_ADV_N : out slbit; -- cram: address valid (act.low)
O_MEM_CLK : out slbit; -- cram: clock
O_MEM_CRE : out slbit; -- cram: command register enable
I_MEM_WAIT : in slbit; -- cram: mem wait
O_MEM_ADDR : out slv23; -- cram: address lines
IO_MEM_DATA : inout slv16 -- cram: data lines
);
end component;
signal CLK : slbit := '0';
signal RESET : slbit := '0';
signal REQ : slbit := '0';
signal WE : slbit := '0';
signal BUSY : slbit := '0';
signal ACK_R : slbit := '0';
signal ACK_W : slbit := '0';
signal ACT_R : slbit := '0';
signal ACT_W : slbit := '0';
signal ADDR : slv22 := (others=>'0');
signal BE : slv4 := (others=>'0');
signal DI : slv32 := (others=>'0');
signal DO : slv32 := (others=>'0');
signal O_MEM_CE_N : slbit := '0';
signal O_MEM_BE_N : slv2 := (others=>'0');
signal O_MEM_WE_N : slbit := '0';
signal O_MEM_OE_N : slbit := '0';
signal O_MEM_ADV_N : slbit := '0';
signal O_MEM_CLK : slbit := '0';
signal O_MEM_CRE : slbit := '0';
signal I_MEM_WAIT : slbit := '0';
signal O_MEM_ADDR : slv23 := (others=>'0');
signal IO_MEM_DATA : slv16 := (others=>'0');
signal R_MEMON : slbit := '0';
signal N_CHK_DATA : slbit := '0';
signal N_REF_DATA : slv32 := (others=>'0');
signal N_REF_ADDR : slv22 := (others=>'0');
signal R_CHK_DATA_AL : slbit := '0';
signal R_REF_DATA_AL : slv32 := (others=>'0');
signal R_REF_ADDR_AL : slv22 := (others=>'0');
signal R_CHK_DATA_DL : slbit := '0';
signal R_REF_DATA_DL : slv32 := (others=>'0');
signal R_REF_ADDR_DL : slv22 := (others=>'0');
signal CLK_STOP : slbit := '0';
signal CLK_CYCLE : slv31 := (others=>'0');
constant clock_period : time := 20 ns;
constant clock_offset : time := 200 ns;
constant setup_time : time := 7.5 ns; -- compatible ucf for
constant c2out_time : time := 12.0 ns; -- tbd_nx_cram_memctl_as
begin
SYSCLK : simclk
generic map (
PERIOD => clock_period,
OFFSET => clock_offset)
port map (
CLK => CLK,
CLK_CYCLE => CLK_CYCLE,
CLK_STOP => CLK_STOP
);
MEM : entity work.mt45w8mw16b
port map (
CLK => O_MEM_CLK,
CE_N => O_MEM_CE_N,
OE_N => O_MEM_OE_N,
WE_N => O_MEM_WE_N,
UB_N => O_MEM_BE_N(1),
LB_N => O_MEM_BE_N(0),
ADV_N => O_MEM_ADV_N,
CRE => O_MEM_CRE,
MWAIT => I_MEM_WAIT,
ADDR => O_MEM_ADDR,
DATA => IO_MEM_DATA
);
UUT : tbd_nx_cram_memctl
port map (
CLK => CLK,
RESET => RESET,
REQ => REQ,
WE => WE,
BUSY => BUSY,
ACK_R => ACK_R,
ACK_W => ACK_W,
ACT_R => ACT_R,
ACT_W => ACT_W,
ADDR => ADDR,
BE => BE,
DI => DI,
DO => DO,
O_MEM_CE_N => O_MEM_CE_N,
O_MEM_BE_N => O_MEM_BE_N,
O_MEM_WE_N => O_MEM_WE_N,
O_MEM_OE_N => O_MEM_OE_N,
O_MEM_CLK => O_MEM_CLK,
O_MEM_ADV_N => O_MEM_ADV_N,
O_MEM_CRE => O_MEM_CRE,
I_MEM_WAIT => I_MEM_WAIT,
O_MEM_ADDR => O_MEM_ADDR,
IO_MEM_DATA => IO_MEM_DATA
);
proc_stim: process
file fstim : text open read_mode is "tb_nx_cram_memctl_stim";
variable iline : line;
variable oline : line;
variable ok : boolean;
variable dname : string(1 to 6) := (others=>' ');
variable idelta : integer := 0;
variable iaddr : slv22 := (others=>'0');
variable idata : slv32 := (others=>'0');
variable ibe : slv4 := (others=>'0');
variable ival : slbit := '0';
variable nbusy : integer := 0;
begin
wait for clock_offset - setup_time;
file_loop: while not endfile(fstim) loop
readline (fstim, iline);
readcomment(iline, ok);
next file_loop when ok;
readword(iline, dname, ok);
if ok then
case dname is
when ".memon" => -- .memon
read_ea(iline, ival);
R_MEMON <= ival;
wait for 2*clock_period;
when ".reset" => -- .reset
write(oline, string'(".reset"));
writeline(output, oline);
RESET <= '1';
wait for clock_period;
RESET <= '0';
wait for 9*clock_period;
when ".wait " => -- .wait
read_ea(iline, idelta);
wait for idelta*clock_period;
when "read " => -- read
readgen_ea(iline, iaddr, 16);
readgen_ea(iline, idata, 16);
ADDR <= iaddr;
REQ <= '1';
WE <= '0';
writetimestamp(oline, CLK_CYCLE, ": stim read ");
writegen(oline, iaddr, right, 7, 16);
write(oline, string'(" "));
writegen(oline, idata, right, 9, 16);
nbusy := 0;
while BUSY='1' loop
nbusy := nbusy + 1;
wait for clock_period;
end loop;
write(oline, string'(" nbusy="));
write(oline, nbusy, right, 2);
writeline(output, oline);
N_CHK_DATA <= '1', '0' after clock_period;
N_REF_DATA <= idata;
N_REF_ADDR <= iaddr;
wait for clock_period;
REQ <= '0';
when "write " => -- write
readgen_ea(iline, iaddr, 16);
read_ea(iline, ibe);
readgen_ea(iline, idata, 16);
ADDR <= iaddr;
BE <= ibe;
DI <= idata;
REQ <= '1';
WE <= '1';
writetimestamp(oline, CLK_CYCLE, ": stim write");
writegen(oline, iaddr, right, 7, 16);
writegen(oline, ibe , right, 5, 2);
writegen(oline, idata, right, 9, 16);
nbusy := 0;
while BUSY = '1' loop
nbusy := nbusy + 1;
wait for clock_period;
end loop;
write(oline, string'(" nbusy="));
write(oline, nbusy, right, 2);
writeline(output, oline);
wait for clock_period;
REQ <= '0';
when others => -- bad directive
write(oline, string'("?? unknown directive: "));
write(oline, dname);
writeline(output, oline);
report "aborting" severity failure;
end case;
else
report "failed to find command" severity failure;
end if;
testempty_ea(iline);
end loop; -- file fstim
wait for 10*clock_period;
writetimestamp(oline, CLK_CYCLE, ": DONE ");
writeline(output, oline);
CLK_STOP <= '1';
wait; -- suspend proc_stim forever
-- clock is stopped, sim will end
end process proc_stim;
proc_moni: process
variable oline : line;
begin
loop
wait until rising_edge(CLK);
if ACK_R = '1' then
writetimestamp(oline, CLK_CYCLE, ": moni ");
writegen(oline, DO, right, 9, 16);
if R_CHK_DATA_DL = '1' then
write(oline, string'(" CHECK"));
if R_REF_DATA_DL = DO then
write(oline, string'(" OK"));
else
write(oline, string'(" FAIL, exp="));
writegen(oline, R_REF_DATA_DL, right, 9, 16);
write(oline, string'(" for a="));
writegen(oline, R_REF_ADDR_DL, right, 5, 16);
end if;
R_CHK_DATA_DL <= '0';
end if;
writeline(output, oline);
end if;
if R_CHK_DATA_AL = '1' then
R_CHK_DATA_DL <= R_CHK_DATA_AL;
R_REF_DATA_DL <= R_REF_DATA_AL;
R_REF_ADDR_DL <= R_REF_ADDR_AL;
R_CHK_DATA_AL <= '0';
end if;
if N_CHK_DATA = '1' then
R_CHK_DATA_AL <= N_CHK_DATA;
R_REF_DATA_AL <= N_REF_DATA;
R_REF_ADDR_AL <= N_REF_ADDR;
end if;
end loop;
end process proc_moni;
proc_memon: process
variable oline : line;
begin
loop
wait until rising_edge(CLK);
if R_MEMON = '1' then
writetimestamp(oline, CLK_CYCLE, ": mem ");
write(oline, string'(" ce="));
write(oline, not O_MEM_CE_N, right, 2);
write(oline, string'(" be="));
write(oline, not O_MEM_BE_N, right, 4);
write(oline, string'(" we="));
write(oline, not O_MEM_WE_N, right);
write(oline, string'(" oe="));
write(oline, not O_MEM_OE_N, right);
write(oline, string'(" a="));
writegen(oline, O_MEM_ADDR, right, 6, 16);
write(oline, string'(" d="));
writegen(oline, IO_MEM_DATA, right, 4, 16);
writeline(output, oline);
end if;
end loop;
end process proc_memon;
end sim;
| gpl-2.0 |
xylnao/w11a-extra | rtl/w11a/pdp11_mmu.vhd | 2 | 13698 | -- $Id: pdp11_mmu.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2006-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: pdp11_mmu - syn
-- Description: pdp11: mmu - memory management unit
--
-- Dependencies: pdp11_mmu_sadr
-- pdp11_mmu_ssr12
-- ibus/ib_sres_or_3
-- ibus/ib_sel
--
-- Test bench: tb/tb_pdp11_core (implicit)
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.4.2 now numeric_std clean
-- 2010-10-23 335 1.4.1 use ib_sel
-- 2010-10-17 333 1.4 use ibus V2 interface
-- 2010-06-20 307 1.3.7 rename cpacc to cacc in mmu_cntl_type
-- 2009-05-30 220 1.3.6 final removal of snoopers (were already commented)
-- 2009-05-09 213 1.3.5 BUGFIX: tie inst_compl permanentely '0'
-- BUGFIX: set ssr0 trap_mmu even when traps disabled
-- 2008-08-22 161 1.3.4 rename pdp11_ibres_ -> ib_sres_, ubf_ -> ibf_
-- 2008-04-27 139 1.3.3 allow ssr1/2 tracing even with mmu_ena=0
-- 2008-04-25 138 1.3.2 add BRESET port, clear ssr0/3 with BRESET
-- 2008-03-02 121 1.3.1 remove snoopers
-- 2008-02-24 119 1.3 return always mapped address in PADDRH; remove
-- cpacc handling; PADDR generation now on _vmbox
-- 2008-01-05 110 1.2.1 rename _mmu_regs -> _mmu_sadr
-- rename IB_MREQ(ena->req) SRES(sel->ack, hold->busy)
-- 2008-01-01 109 1.2 use pdp11_mmu_regs (rather than _regset)
-- 2007-12-31 108 1.1.1 remove SADR memory address mux (-> _mmu_regfile)
-- 2007-12-30 107 1.1 use IB_MREQ/IB_SRES interface now
-- 2007-06-14 56 1.0.1 Use slvtypes.all
-- 2007-05-12 26 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.iblib.all;
use work.pdp11.all;
-- ----------------------------------------------------------------------------
entity pdp11_mmu is -- mmu - memory management unit
port (
CLK : in slbit; -- clock
CRESET : in slbit; -- console reset
BRESET : in slbit; -- ibus reset
CNTL : in mmu_cntl_type; -- control port
VADDR : in slv16; -- virtual address
MONI : in mmu_moni_type; -- monitor port
STAT : out mmu_stat_type; -- status port
PADDRH : out slv16; -- physical address (upper 16 bit)
IB_MREQ: in ib_mreq_type; -- ibus request
IB_SRES: out ib_sres_type -- ibus response
);
end pdp11_mmu;
architecture syn of pdp11_mmu is
constant ibaddr_ssr0 : slv16 := slv(to_unsigned(8#177572#,16));
constant ibaddr_ssr3 : slv16 := slv(to_unsigned(8#172516#,16));
constant ssr0_ibf_abo_nonres : integer := 15;
constant ssr0_ibf_abo_length : integer := 14;
constant ssr0_ibf_abo_rdonly : integer := 13;
constant ssr0_ibf_trap_mmu : integer := 12;
constant ssr0_ibf_ena_trap : integer := 9;
constant ssr0_ibf_inst_compl : integer := 7;
subtype ssr0_ibf_seg_mode is integer range 6 downto 5;
constant ssr0_ibf_dspace : integer := 4;
subtype ssr0_ibf_seg_num is integer range 3 downto 1;
constant ssr0_ibf_ena_mmu : integer := 0;
constant ssr3_ibf_ena_ubmap : integer := 5;
constant ssr3_ibf_ena_22bit : integer := 4;
constant ssr3_ibf_dspace_km : integer := 2;
constant ssr3_ibf_dspace_sm : integer := 1;
constant ssr3_ibf_dspace_um : integer := 0;
signal IBSEL_SSR0 : slbit := '0'; -- ibus select SSR0
signal IBSEL_SSR3 : slbit := '0'; -- ibus select SSR3
signal R_SSR0 : mmu_ssr0_type := mmu_ssr0_init;
signal N_SSR0 : mmu_ssr0_type := mmu_ssr0_init;
signal R_SSR3 : mmu_ssr3_type := mmu_ssr3_init;
signal ASN : slv4 := "0000"; -- augmented segment number (1+3 bit)
signal AIB_WE : slbit := '0'; -- update AIB
signal AIB_SETA : slbit := '0'; -- set A bit in access information bits
signal AIB_SETW : slbit := '0'; -- set W bit in access information bits
signal TRACE : slbit := '0'; -- enable tracing in ssr1/2
signal DSPACE : slbit := '0'; -- use dspace
signal IB_SRES_SADR : ib_sres_type := ib_sres_init;
signal IB_SRES_SSR12 : ib_sres_type := ib_sres_init;
signal IB_SRES_SSR03 : ib_sres_type := ib_sres_init;
signal SARSDR : sarsdr_type := sarsdr_init;
begin
SADR : pdp11_mmu_sadr port map (
CLK => CLK,
MODE => CNTL.mode,
ASN => ASN,
AIB_WE => AIB_WE,
AIB_SETA => AIB_SETA,
AIB_SETW => AIB_SETW,
SARSDR => SARSDR,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_SADR);
SSR12 : pdp11_mmu_ssr12 port map (
CLK => CLK,
CRESET => CRESET,
TRACE => TRACE,
MONI => MONI,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_SSR12);
SRES_OR : ib_sres_or_3
port map (
IB_SRES_1 => IB_SRES_SADR,
IB_SRES_2 => IB_SRES_SSR12,
IB_SRES_3 => IB_SRES_SSR03,
IB_SRES_OR => IB_SRES);
SEL_SSR0 : ib_sel
generic map (
IB_ADDR => ibaddr_ssr0)
port map (
CLK => CLK,
IB_MREQ => IB_MREQ,
SEL => IBSEL_SSR0
);
SEL_SSR3 : ib_sel
generic map (
IB_ADDR => ibaddr_ssr3)
port map (
CLK => CLK,
IB_MREQ => IB_MREQ,
SEL => IBSEL_SSR3
);
proc_ibres : process (IBSEL_SSR0, IBSEL_SSR3, IB_MREQ, R_SSR0, R_SSR3)
variable ssr0out : slv16 := (others=>'0');
variable ssr3out : slv16 := (others=>'0');
begin
ssr0out := (others=>'0');
if IBSEL_SSR0 = '1' then
ssr0out(ssr0_ibf_abo_nonres) := R_SSR0.abo_nonres;
ssr0out(ssr0_ibf_abo_length) := R_SSR0.abo_length;
ssr0out(ssr0_ibf_abo_rdonly) := R_SSR0.abo_rdonly;
ssr0out(ssr0_ibf_trap_mmu) := R_SSR0.trap_mmu;
ssr0out(ssr0_ibf_ena_trap) := R_SSR0.ena_trap;
ssr0out(ssr0_ibf_inst_compl) := R_SSR0.inst_compl;
ssr0out(ssr0_ibf_seg_mode) := R_SSR0.seg_mode;
ssr0out(ssr0_ibf_dspace) := R_SSR0.dspace;
ssr0out(ssr0_ibf_seg_num) := R_SSR0.seg_num;
ssr0out(ssr0_ibf_ena_mmu) := R_SSR0.ena_mmu;
end if;
ssr3out := (others=>'0');
if IBSEL_SSR3 = '1' then
ssr3out(ssr3_ibf_ena_ubmap) := R_SSR3.ena_ubmap;
ssr3out(ssr3_ibf_ena_22bit) := R_SSR3.ena_22bit;
ssr3out(ssr3_ibf_dspace_km) := R_SSR3.dspace_km;
ssr3out(ssr3_ibf_dspace_sm) := R_SSR3.dspace_sm;
ssr3out(ssr3_ibf_dspace_um) := R_SSR3.dspace_um;
end if;
IB_SRES_SSR03.dout <= ssr0out or ssr3out;
IB_SRES_SSR03.ack <= (IBSEL_SSR0 or IBSEL_SSR3) and
(IB_MREQ.re or IB_MREQ.we); -- ack all
IB_SRES_SSR03.busy <= '0';
end process proc_ibres;
proc_ssr0 : process (CLK)
begin
if rising_edge(CLK) then
if BRESET = '1' then
R_SSR0 <= mmu_ssr0_init;
else
R_SSR0 <= N_SSR0;
end if;
end if;
end process proc_ssr0;
proc_ssr3 : process (CLK)
begin
if rising_edge(CLK) then
if BRESET = '1' then
R_SSR3 <= mmu_ssr3_init;
elsif IBSEL_SSR3='1' and IB_MREQ.we='1' then
if IB_MREQ.be0 = '1' then
R_SSR3.ena_ubmap <= IB_MREQ.din(ssr3_ibf_ena_ubmap);
R_SSR3.ena_22bit <= IB_MREQ.din(ssr3_ibf_ena_22bit);
R_SSR3.dspace_km <= IB_MREQ.din(ssr3_ibf_dspace_km);
R_SSR3.dspace_sm <= IB_MREQ.din(ssr3_ibf_dspace_sm);
R_SSR3.dspace_um <= IB_MREQ.din(ssr3_ibf_dspace_um);
end if;
end if;
end if;
end process proc_ssr3;
proc_paddr : process (R_SSR0, R_SSR3, CNTL, SARSDR, VADDR)
variable ipaddrh : slv16 := (others=>'0');
variable dspace_ok : slbit := '0';
variable dspace_en : slbit := '0';
variable asf : slv3 := (others=>'0'); -- va: active segment field
variable bn : slv7 := (others=>'0'); -- va: block number
variable iasn : slv4 := (others=>'0');-- augmented segment number
begin
asf := VADDR(15 downto 13);
bn := VADDR(12 downto 6);
dspace_en := '0';
case CNTL.mode is
when "00" => dspace_en := R_SSR3.dspace_km;
when "01" => dspace_en := R_SSR3.dspace_sm;
when "11" => dspace_en := R_SSR3.dspace_um;
when others => null;
end case;
dspace_ok := CNTL.dspace and dspace_en;
iasn(3) := dspace_ok;
iasn(2 downto 0) := asf;
ipaddrh := slv(unsigned("000000000"&bn) + unsigned(SARSDR.saf));
DSPACE <= dspace_ok;
ASN <= iasn;
PADDRH <= ipaddrh;
end process proc_paddr;
proc_nssr0 : process (R_SSR0, R_SSR3, IB_MREQ, IBSEL_SSR0, DSPACE,
CNTL, MONI, SARSDR, VADDR)
variable nssr0 : mmu_ssr0_type := mmu_ssr0_init;
variable asf : slv3 := (others=>'0');
variable bn : slv7 := (others=>'0');
variable abo_nonres : slbit := '0';
variable abo_length : slbit := '0';
variable abo_rdonly : slbit := '0';
variable ssr_freeze : slbit := '0';
variable doabort : slbit := '0';
variable dotrap : slbit := '0';
variable dotrace : slbit := '0';
begin
nssr0 := R_SSR0;
AIB_WE <= '0';
AIB_SETA <= '0';
AIB_SETW <= '0';
ssr_freeze := R_SSR0.abo_nonres or R_SSR0.abo_length or R_SSR0.abo_rdonly;
dotrace := not(CNTL.cacc or ssr_freeze);
asf := VADDR(15 downto 13);
bn := VADDR(12 downto 6);
abo_nonres := '0';
abo_length := '0';
abo_rdonly := '0';
doabort := '0';
dotrap := '0';
if SARSDR.ed = '0' then -- ed=0: upward expansion
if unsigned(bn) > unsigned(SARSDR.slf) then
abo_length := '1';
end if;
else -- ed=0: downward expansion
if unsigned(bn) < unsigned(SARSDR.slf) then
abo_length := '1';
end if;
end if;
case SARSDR.acf is -- evaluate accecc control field
when "000" => -- segment non-resident
abo_nonres := '1';
when "001" => -- read-only; trap on read
if CNTL.wacc='1' or CNTL.macc='1' then
abo_rdonly := '1';
end if;
dotrap := '1';
when "010" => -- read-only
if CNTL.wacc='1' or CNTL.macc='1' then
abo_rdonly := '1';
end if;
when "100" => -- read/write; trap on read&write
dotrap := '1';
when "101" => -- read/write; trap on write
dotrap := CNTL.wacc or CNTL.macc;
when "110" => null; -- read/write;
when others => -- unused codes: abort access
abo_nonres := '1';
end case;
if IBSEL_SSR0='1' and IB_MREQ.we='1' then
if IB_MREQ.be1 = '1' then
nssr0.abo_nonres := IB_MREQ.din(ssr0_ibf_abo_nonres);
nssr0.abo_length := IB_MREQ.din(ssr0_ibf_abo_length);
nssr0.abo_rdonly := IB_MREQ.din(ssr0_ibf_abo_rdonly);
nssr0.trap_mmu := IB_MREQ.din(ssr0_ibf_trap_mmu);
nssr0.ena_trap := IB_MREQ.din(ssr0_ibf_ena_trap);
end if;
if IB_MREQ.be0 = '1' then
nssr0.ena_mmu := IB_MREQ.din(ssr0_ibf_ena_mmu);
end if;
elsif nssr0.ena_mmu='1' and CNTL.cacc='0' then
if dotrace = '1' then
if MONI.istart = '1' then
nssr0.inst_compl := '0';
elsif MONI.idone = '1' then
nssr0.inst_compl := '0'; -- disable instr.compl logic
end if;
end if;
if CNTL.req = '1' then
AIB_WE <= '1';
if ssr_freeze = '0' then
nssr0.abo_nonres := abo_nonres;
nssr0.abo_length := abo_length;
nssr0.abo_rdonly := abo_rdonly;
end if;
doabort := abo_nonres or abo_length or abo_rdonly;
if doabort = '0' then
AIB_SETA <= '1';
AIB_SETW <= CNTL.wacc or CNTL.macc;
end if;
if ssr_freeze = '0' then
nssr0.dspace := DSPACE;
nssr0.seg_num := asf;
nssr0.seg_mode := CNTL.mode;
end if;
end if;
end if;
if CNTL.req='1' and R_SSR0.ena_mmu='1' and CNTL.cacc='0' and
dotrap='1' then
nssr0.trap_mmu := '1';
end if;
nssr0.trace_prev := dotrace;
if MONI.trace_prev = '0' then
TRACE <= dotrace;
else
TRACE <= R_SSR0.trace_prev;
end if;
N_SSR0 <= nssr0;
if R_SSR0.ena_mmu='1' and CNTL.cacc='0' then
STAT.vaok <= not doabort;
else
STAT.vaok <= '1';
end if;
if R_SSR0.ena_mmu='1' and CNTL.cacc='0' and doabort='0' and
R_SSR0.ena_trap='1' and R_SSR0.trap_mmu='0' and dotrap='1' then
STAT.trap <= '1';
else
STAT.trap <= '0';
end if;
STAT.ena_mmu <= R_SSR0.ena_mmu;
STAT.ena_22bit <= R_SSR3.ena_22bit;
STAT.ena_ubmap <= R_SSR3.ena_ubmap;
end process proc_nssr0;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/w11a/pdp11_sim.vhd | 2 | 1468 | -- $Id: pdp11_sim.vhd 314 2010-07-09 17:38:41Z mueller $
--
-- Copyright 2006-2007 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: pdp11_sim
-- Description: Definitions for simulations
--
-- Dependencies: -
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2; ghdl 0.18-0.25
-- Revision History:
-- Date Rev Version Comment
-- 2007-10-12 88 1.0.2 avoid ieee.std_logic_unsigned, use cast to unsigned
-- 2007-06-14 56 1.0.1 Use slvtypes.all
-- 2007-05-12 26 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_textio.all;
use std.textio.all;
package pdp11_sim is
constant clock_period : time := 20 ns;
constant clock_offset : time := 200 ns;
constant setup_time : time := 5 ns;
constant c2out_time : time := 5 ns;
end package pdp11_sim;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/memlib/fifo_1c_dram.vhd | 2 | 3081 | -- $Id: fifo_1c_dram.vhd 421 2011-11-07 21:23:50Z mueller $
--
-- Copyright 2007- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: fifo_1c_dram - syn
-- Description: FIFO, single clock domain, distributed RAM based, with
-- enable/busy/valid/hold interface.
--
-- Dependencies: fifo_1c_dram_raw
--
-- Test bench: tb/tb_fifo_1c_dram
-- Target Devices: generic Spartan, Virtex
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2; ghdl 0.18-0.25
-- Revision History:
-- Date Rev Version Comment
-- 2007-06-06 49 1.0 Initial version
--
-- Some synthesis results:
-- - 2007-12-27 ise 8.2.03 for xc3s1000-ft256-4:
-- AWIDTH DWIDTH LUT.l LUT.m Flop clock(xst est.)
-- 4 16 31 32 22 153MHz ( 16 words)
-- 5 16 49 64 23 120MHz ( 32 words)
-- 6 16 70 128 23 120MHz ( 64 words)
-- 7 16 111 256 30 120MHz (128 words)
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
use work.memlib.all;
entity fifo_1c_dram is -- fifo, 1 clock, dram based
generic (
AWIDTH : positive := 7; -- address width (sets size)
DWIDTH : positive := 16); -- data width
port (
CLK : in slbit; -- clock
RESET : in slbit; -- reset
DI : in slv(DWIDTH-1 downto 0); -- input data
ENA : in slbit; -- write enable
BUSY : out slbit; -- write port hold
DO : out slv(DWIDTH-1 downto 0); -- output data
VAL : out slbit; -- read valid
HOLD : in slbit; -- read hold
SIZE : out slv(AWIDTH downto 0) -- number of used slots
);
end fifo_1c_dram;
architecture syn of fifo_1c_dram is
signal WE : slbit := '0';
signal RE : slbit := '0';
signal SIZE_L : slv(AWIDTH-1 downto 0) := (others=>'0');
signal EMPTY : slbit := '0';
signal FULL : slbit := '0';
begin
FIFO : fifo_1c_dram_raw
generic map (
AWIDTH => AWIDTH,
DWIDTH => DWIDTH)
port map (
CLK => CLK,
RESET => RESET,
WE => WE,
RE => RE,
DI => DI,
DO => DO,
SIZE => SIZE_L,
EMPTY => EMPTY,
FULL => FULL
);
WE <= ENA and (not FULL);
RE <= (not EMPTY) and (not HOLD);
BUSY <= FULL;
VAL <= not EMPTY;
SIZE <= FULL & SIZE_L;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/w11a/pdp11_lunit.vhd | 2 | 6761 | -- $Id: pdp11_lunit.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2006-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: pdp11_lunit - syn
-- Description: pdp11: logic unit for data (lunit)
--
-- Dependencies: -
-- Test bench: tb/tb_pdp11_core (implicit)
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.1.1 now numeric_std clean
-- 2010-09-18 300 1.1 renamed from lbox
-- 2008-03-30 131 1.0.2 BUGFIX: SXT clears V condition code
-- 2007-06-14 56 1.0.1 Use slvtypes.all
-- 2007-05-12 26 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.pdp11.all;
-- ----------------------------------------------------------------------------
entity pdp11_lunit is -- logic unit for data (lunit)
port (
DSRC : in slv16; -- 'src' data in
DDST : in slv16; -- 'dst' data in
CCIN : in slv4; -- condition codes in
FUNC : in slv4; -- function
BYTOP : in slbit; -- byte operation
DOUT : out slv16; -- data output
CCOUT : out slv4 -- condition codes out
);
end pdp11_lunit;
architecture syn of pdp11_lunit is
-- --------------------------------------
begin
process (DSRC, DDST, CCIN, FUNC, BYTOP)
variable iout : slv16 := (others=>'0');
variable inzstd : slbit := '0';
variable ino : slbit := '0';
variable izo : slbit := '0';
variable ivo : slbit := '0';
variable ico : slbit := '0';
alias DSRC_L : slv8 is DSRC(7 downto 0);
alias DSRC_H : slv8 is DSRC(15 downto 8);
alias DDST_L : slv8 is DDST(7 downto 0);
alias DDST_H : slv8 is DDST(15 downto 8);
alias NI : slbit is CCIN(3);
alias ZI : slbit is CCIN(2);
alias VI : slbit is CCIN(1);
alias CI : slbit is CCIN(0);
alias iout_l : slv8 is iout(7 downto 0);
alias iout_h : slv8 is iout(15 downto 8);
begin
iout := (others=>'0');
inzstd := '1'; -- use standard logic by default
ino := '0';
izo := '0';
ivo := '0';
ico := '0';
--
-- the decoding of FUNC is done "manually" to get a structure based on
-- a 8->1 pattern. This matches the opcode structure and seems most
-- efficient.
--
if FUNC(3) = '0' then
if BYTOP = '0' then
case FUNC(2 downto 0) is
when "000" => -- ASR
iout := DDST(15) & DDST(15 downto 1);
ico := DDST(0);
ivo := iout(15) xor ico;
when "001" => -- ASL
iout := DDST(14 downto 0) & '0';
ico := DDST(15);
ivo := iout(15) xor ico;
when "010" => -- ROR
iout := CI & DDST(15 downto 1);
ico := DDST(0);
ivo := iout(15) xor ico;
when "011" => -- ROL
iout := DDST(14 downto 0) & CI;
ico := DDST(15);
ivo := iout(15) xor ico;
when "100" => -- BIS
iout := DDST or DSRC;
ico := CI;
when "101" => -- BIC
iout := DDST and not DSRC;
ico := CI;
when "110" => -- BIT
iout := DDST and DSRC;
ico := CI;
when "111" => -- MOV
iout := DSRC;
ico := CI;
when others => null;
end case;
else
case FUNC(2 downto 0) is
when "000" => -- ASRB
iout_l := DDST_L(7) & DDST_L(7 downto 1);
ico := DDST_L(0);
ivo := iout_l(7) xor ico;
when "001" => -- ASLB
iout_l := DDST(6 downto 0) & '0';
ico := DDST(7);
ivo := iout_l(7) xor ico;
when "010" => -- RORB
iout_l := CI & DDST_L(7 downto 1);
ico := DDST_L(0);
ivo := iout_l(7) xor ico;
when "011" => -- ROLB
iout_l := DDST_L(6 downto 0) & CI;
ico := DDST_L(7);
ivo := iout_l(7) xor ico;
when "100" => -- BISB
iout_l := DDST_L or DSRC_L;
ico := CI;
when "101" => -- BICB
iout_l := DDST_L and not DSRC_L;
ico := CI;
when "110" => -- BITB
iout_l := DDST_L and DSRC_L;
ico := CI;
when "111" => -- MOVB
iout_l := DSRC_L;
iout_h := (others=>DSRC_L(7));
ico := CI;
when others => null;
end case;
end if;
else
case FUNC(2 downto 0) is
when "000" => -- SXT
iout := (others=>NI);
inzstd := '0';
ino := NI;
izo := not NI;
ivo := '0';
ico := CI;
when "001" => -- SWAP
iout := DDST_L & DDST_H;
inzstd := '0';
ino := iout(7);
if unsigned(iout(7 downto 0)) = 0 then
izo := '1';
else
izo := '0';
end if;
when "010" => -- XOR
iout := DDST xor DSRC;
ico := CI;
when others => null;
end case;
end if;
DOUT <= iout;
if inzstd = '1' then
if BYTOP = '1' then
ino := iout(7);
if unsigned(iout(7 downto 0)) = 0 then
izo := '1';
else
izo := '0';
end if;
else
ino := iout(15);
if unsigned(iout) = 0 then
izo := '1';
else
izo := '0';
end if;
end if;
end if;
CCOUT(3) <= ino;
CCOUT(2) <= izo;
CCOUT(1) <= ivo;
CCOUT(0) <= ico;
end process;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/genlib/clkdivce.vhd | 2 | 3472 | -- $Id: clkdivce.vhd 418 2011-10-23 20:11:40Z mueller $
--
-- Copyright 2007-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: clkgen - syn
-- Description: Generate usec and msec enable signals
--
-- Dependencies: -
-- Test bench: -
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-10-22 418 1.0.3 now numeric_std clean
-- 2008-01-20 112 1.0.2 rename clkgen->clkdivce; remove SYS_CLK port
-- 2007-10-12 88 1.0.1 avoid ieee.std_logic_unsigned, use cast to unsigned
-- 2007-06-30 62 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
entity clkdivce is -- generate usec/msec ce pulses
generic (
CDUWIDTH : positive := 6; -- usec clock divider width
USECDIV : positive := 50; -- divider ratio for usec pulse
MSECDIV : positive := 1000); -- divider ratio for msec pulse
port (
CLK : in slbit; -- input clock
CE_USEC : out slbit; -- usec pulse
CE_MSEC : out slbit -- msec pulse
);
end clkdivce;
architecture syn of clkdivce is
type regs_type is record
ucnt : slv(CDUWIDTH-1 downto 0); -- usec clock divider counter
mcnt : slv10; -- msec clock divider counter
usec : slbit; -- usec pulse
msec : slbit; -- msec pulse
end record regs_type;
constant regs_init : regs_type := (
slv(to_unsigned(USECDIV-1,CDUWIDTH)),
slv(to_unsigned(MSECDIV-1,10)),
'0','0'
);
signal R_REGS : regs_type := regs_init; -- state registers
signal N_REGS : regs_type := regs_init; -- next value state regs
begin
assert USECDIV <= 2**CDUWIDTH and MSECDIV <= 1024
report "assert(USECDIV <= 2**CDUWIDTH and MSECDIV <= 1024): " &
"USECDIV too large for given CDUWIDTH or MSECDIV>1024"
severity FAILURE;
proc_regs: process (CLK)
begin
if rising_edge(CLK) then
R_REGS <= N_REGS;
end if;
end process proc_regs;
proc_next: process (R_REGS)
variable r : regs_type := regs_init;
variable n : regs_type := regs_init;
begin
r := R_REGS;
n := R_REGS;
n.usec := '0';
n.msec := '0';
n.ucnt := slv(unsigned(r.ucnt) - 1);
if unsigned(r.ucnt) = 0 then
n.usec := '1';
n.ucnt := slv(to_unsigned(USECDIV-1,CDUWIDTH));
n.mcnt := slv(unsigned(r.mcnt) - 1);
if unsigned(r.mcnt) = 0 then
n.msec := '1';
n.mcnt := slv(to_unsigned(MSECDIV-1,10));
end if;
end if;
N_REGS <= n;
CE_USEC <= r.usec;
CE_MSEC <= r.msec;
end process proc_next;
end syn;
| gpl-2.0 |
ykhalyavin/usbprog | xilinxprog/xup-0.0.2/prog.vhd | 3 | 672 | -- prog.vhd -- xc2c256 cpld for usb jtag
--
-- copyright (c) 2006 inisyn research
-- license: LGPL2
--
-- revision history:
-- 2006-05-27 initial
--
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
entity prog is
port(
sys_tck : out std_logic;
sys_tms : out std_logic;
sys_tdi : out std_logic;
sys_tdo : in std_logic;
cy_tck : in std_logic;
cy_tms : in std_logic;
cy_tdi : in std_logic;
cy_tdo : out std_logic
);
end prog;
architecture syn of prog is
begin
sys_tck <= cy_tck;
sys_tms <= cy_tms;
sys_tdi <= cy_tdi;
cy_tdo <= sys_tdo;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/ibus/ibdr_pc11.vhd | 1 | 12707 | -- $Id: ibdr_pc11.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2009-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: ibdr_pc11 - syn
-- Description: ibus dev(rem): PC11
--
-- Dependencies: -
-- Test bench: xxdp: zpcae0
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
--
-- Synthesized (xst):
-- Date Rev ise Target flop lutl lutm slic t peri
-- 2010-10-17 333 12.1 M53d xc3s1000-4 26 97 0 57 s 6.0
-- 2009-06-28 230 10.1.03 K39 xc3s1000-4 25 92 0 54 s 4.9
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.2.2 now numeric_std clean
-- 2010-10-23 335 1.2.1 rename RRI_LAM->RB_LAM;
-- 2010-10-17 333 1.2 use ibus V2 interface
-- 2010-06-11 303 1.1 use IB_MREQ.racc instead of RRI_REQ
-- 2009-06-28 230 1.0 prdy now inits to '1'; setting err bit in csr now
-- causes interrupt, if enabled; validated with zpcae0
-- 2009-06-01 221 0.9 Initial version (untested)
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.iblib.all;
-- ----------------------------------------------------------------------------
entity ibdr_pc11 is -- ibus dev(rem): PC11
-- fixed address: 177550
port (
CLK : in slbit; -- clock
RESET : in slbit; -- system reset
BRESET : in slbit; -- ibus reset
RB_LAM : out slbit; -- remote attention
IB_MREQ : in ib_mreq_type; -- ibus request
IB_SRES : out ib_sres_type; -- ibus response
EI_REQ_PTR : out slbit; -- interrupt request, reader
EI_REQ_PTP : out slbit; -- interrupt request, punch
EI_ACK_PTR : in slbit; -- interrupt acknowledge, reader
EI_ACK_PTP : in slbit -- interrupt acknowledge, punch
);
end ibdr_pc11;
architecture syn of ibdr_pc11 is
constant ibaddr_pc11 : slv16 := slv(to_unsigned(8#177550#,16));
constant ibaddr_rcsr : slv2 := "00"; -- rcsr address offset
constant ibaddr_rbuf : slv2 := "01"; -- rbuf address offset
constant ibaddr_pcsr : slv2 := "10"; -- pcsr address offset
constant ibaddr_pbuf : slv2 := "11"; -- pbuf address offset
constant rcsr_ibf_rerr : integer := 15;
constant rcsr_ibf_rbusy : integer := 11;
constant rcsr_ibf_rdone : integer := 7;
constant rcsr_ibf_rie : integer := 6;
constant rcsr_ibf_renb : integer := 0;
constant pcsr_ibf_perr : integer := 15;
constant pcsr_ibf_prdy : integer := 7;
constant pcsr_ibf_pie : integer := 6;
constant pbuf_ibf_pval : integer := 8;
constant pbuf_ibf_rbusy : integer := 9;
type regs_type is record -- state registers
ibsel : slbit; -- ibus select
rerr : slbit; -- rcsr: reader error
rbusy : slbit; -- rcsr: reader busy
rdone : slbit; -- rcsr: reader done
rie : slbit; -- rcsr: reader interrupt enable
rbuf : slv8; -- rbuf:
rintreq : slbit; -- ptr interrupt request
perr : slbit; -- pcsr: punch error
prdy : slbit; -- pcsr: punch ready
pie : slbit; -- pcsr: punch interrupt enable
pbuf : slv8; -- pbuf:
pintreq : slbit; -- ptp interrupt request
end record regs_type;
constant regs_init : regs_type := (
'0', -- ibsel
'1', -- rerr (init=1!)
'0','0','0', -- rbusy,rdone,rie
(others=>'0'), -- rbuf
'0', -- rintreq
'1', -- perr (init=1!)
'1', -- prdy (init=1!)
'0', -- pie
(others=>'0'), -- pbuf
'0' -- pintreq
);
signal R_REGS : regs_type := regs_init;
signal N_REGS : regs_type := regs_init;
begin
proc_regs: process (CLK)
begin
if rising_edge(CLK) then
if BRESET = '1' then -- BRESET is 1 for system and ibus reset
R_REGS <= regs_init; --
if RESET = '0' then -- if RESET=0 we do just an ibus reset
R_REGS.rerr <= N_REGS.rerr; -- don't reset RERR flag
R_REGS.perr <= N_REGS.perr; -- don't reset PERR flag
end if;
else
R_REGS <= N_REGS;
end if;
end if;
end process proc_regs;
proc_next : process (R_REGS, IB_MREQ, EI_ACK_PTR, EI_ACK_PTP)
variable r : regs_type := regs_init;
variable n : regs_type := regs_init;
variable idout : slv16 := (others=>'0');
variable ibreq : slbit := '0';
variable ibrd : slbit := '0';
variable ibw0 : slbit := '0';
variable ibw1 : slbit := '0';
variable ilam : slbit := '0';
begin
r := R_REGS;
n := R_REGS;
idout := (others=>'0');
ibreq := IB_MREQ.re or IB_MREQ.we;
ibrd := IB_MREQ.re;
ibw0 := IB_MREQ.we and IB_MREQ.be0;
ibw1 := IB_MREQ.we and IB_MREQ.be1;
ilam := '0';
-- ibus address decoder
n.ibsel := '0';
if IB_MREQ.aval='1' and
IB_MREQ.addr(12 downto 3)=ibaddr_pc11(12 downto 3) then
n.ibsel := '1';
end if;
-- ibus transactions
if r.ibsel = '1' then
case IB_MREQ.addr(2 downto 1) is
when ibaddr_rcsr => -- RCSR -- reader control status -----
idout(rcsr_ibf_rerr) := r.rerr;
idout(rcsr_ibf_rbusy) := r.rbusy;
idout(rcsr_ibf_rdone) := r.rdone;
idout(rcsr_ibf_rie) := r.rie;
if IB_MREQ.racc = '0' then -- cpu ---------------------
if ibw0 = '1' then
n.rie := IB_MREQ.din(rcsr_ibf_rie);
if IB_MREQ.din(rcsr_ibf_rie) = '1' then-- set IE to 1
if r.rie = '0' and -- IE 0->1 transition
IB_MREQ.din(rcsr_ibf_renb)='0' and -- when RENB not set
(r.rerr='1' or r.rdone='1') then -- but err or done set
n.rintreq := '1'; -- request interrupt
end if;
else -- set IE to 0
n.rintreq := '0'; -- cancel interrupts
end if;
if IB_MREQ.din(rcsr_ibf_renb) = '1' then -- set RENB
if r.rerr = '0' then -- if not in error state
n.rbusy := '1'; -- set busy
n.rdone := '0'; -- clear done
n.rbuf := (others=>'0'); -- clear buffer
n.rintreq := '0'; -- cancel interrupt
ilam := '1'; -- rri lam
else -- if in error state
if r.rie = '1' then -- if interrupts on
n.rintreq := '1'; -- request interrupt
end if;
end if;
end if;
end if;
else -- rri ---------------------
if ibw1 = '1' then
n.rerr := IB_MREQ.din(rcsr_ibf_rerr); -- set ERR bit
if IB_MREQ.din(rcsr_ibf_rerr)='1' -- if 0->1 transition
and r.rerr='0' then
n.rbusy := '0'; -- clear busy
n.rdone := '0'; -- clear done
if r.rie = '1' then -- if interrupts on
n.rintreq := '1'; -- request interrupt
end if;
end if;
end if;
end if;
when ibaddr_rbuf => -- RBUF -- reader data buffer --------
idout(r.rbuf'range) := r.rbuf;
if IB_MREQ.racc = '0' then -- cpu ---------------------
if true then -- !! PC11 is unusual !!
n.rdone := '0'; -- any read or write will clear done
n.rbuf := (others=>'0'); -- and the reader buffer
n.rintreq := '0'; -- also interrupt is canceled
end if;
else -- rri ---------------------
if ibw0 = '1' then
n.rbuf := IB_MREQ.din(n.rbuf'range);
n.rbusy := '0';
n.rdone := '1';
if r.rie = '1' then
n.rintreq := '1';
end if;
end if;
end if;
when ibaddr_pcsr => -- PCSR -- punch control status ------
idout(pcsr_ibf_perr) := r.perr;
idout(pcsr_ibf_prdy) := r.prdy;
idout(pcsr_ibf_pie) := r.pie;
if IB_MREQ.racc = '0' then -- cpu ---------------------
if ibw0 = '1' then
n.pie := IB_MREQ.din(pcsr_ibf_pie);
if IB_MREQ.din(pcsr_ibf_pie) = '1' then-- set IE to 1
if r.pie='0' and -- IE 0->1 transition
(r.perr='1' or r.prdy='1') then -- but err or done set
n.pintreq := '1'; -- request interrupt
end if;
else -- set IE to 0
n.pintreq := '0'; -- cancel interrupts
end if;
end if;
else -- rri ---------------------
if ibw1 = '1' then
n.perr := IB_MREQ.din(pcsr_ibf_perr); -- set ERR bit
if IB_MREQ.din(pcsr_ibf_perr)='1' -- if 0->1 transition
and r.perr='0' then
n.prdy := '1'; -- set ready
if r.pie = '1' then -- if interrupts on
n.pintreq := '1'; -- request interrupt
end if;
end if;
end if;
end if;
when ibaddr_pbuf => -- PBUF -- punch data buffer ---------
if IB_MREQ.racc = '0' then -- cpu ---------------------
if ibw0 = '1' then
if r.perr = '0' then -- if not in error state
n.pbuf := IB_MREQ.din(n.pbuf'range);
n.prdy := '0'; -- clear ready
n.pintreq := '0'; -- cancel interrupts
ilam := '1'; -- rri lam
else -- if in error state
if r.pie = '1' then -- if interrupts on
n.pintreq := '1'; -- request interrupt
end if;
end if;
end if;
else -- rri ---------------------
idout(r.pbuf'range) := r.pbuf;
idout(pbuf_ibf_pval) := not r.prdy;
idout(pbuf_ibf_rbusy) := r.rbusy;
if ibrd = '1' then
n.prdy := '1';
if r.pie = '1' then
n.pintreq := '1';
end if;
end if;
end if;
when others => null;
end case;
end if;
-- other state changes
if EI_ACK_PTR = '1' then
n.rintreq := '0';
end if;
if EI_ACK_PTP = '1' then
n.pintreq := '0';
end if;
N_REGS <= n;
IB_SRES.dout <= idout;
IB_SRES.ack <= r.ibsel and ibreq;
IB_SRES.busy <= '0';
RB_LAM <= ilam;
EI_REQ_PTR <= r.rintreq;
EI_REQ_PTP <= r.pintreq;
end process proc_next;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/w11a/nexys2/sys_w11a_n2.vhd | 1 | 20479 | -- $Id: sys_w11a_n2.vhd 440 2011-12-18 20:08:09Z mueller $
--
-- Copyright 2010-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: sys_w11a_n2 - syn
-- Description: w11a test design for nexys2
--
-- Dependencies: vlib/xlib/dcm_sfs
-- vlib/genlib/clkdivce
-- bplib/bpgen/bp_rs232_2l4l_iob
-- bplib/bpgen/sn_humanio_rbus
-- vlib/rlink/rlink_sp1c
-- vlib/rri/rb_sres_or_3
-- w11a/pdp11_core_rbus
-- w11a/pdp11_core
-- w11a/pdp11_bram
-- vlib/nxcramlib/nx_cram_dummy
-- w11a/pdp11_cache
-- w11a/pdp11_mem70
-- bplib/nxcramlib/nx_cram_memctl_as
-- ibus/ib_sres_or_2
-- ibus/ibdr_minisys
-- ibus/ibdr_maxisys
-- w11a/pdp11_tmu_sb [sim only]
--
-- Test bench: tb/tb_sys_w11a_n2
--
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 10.1, 11.4, 12.1, 13.1; ghdl 0.26-0.29
--
-- Synthesized (xst):
-- Date Rev ise Target flop lutl lutm slic t peri
-- 2011-12-18 440 13.1 O40d xc3s1200e-4 1450 4439 270 2740 ok: LP+PC+DL+II
-- 2011-11-18 427 13.1 O40d xc3s1200e-4 1433 4374 242 2680 ok: LP+PC+DL+II
-- 2010-12-30 351 12.1 M53d xc3s1200e-4 1389 4368 242 2674 ok: LP+PC+DL+II
-- 2010-11-06 336 12.1 M53d xc3s1200e-4 1357 4304* 242 2618 ok: LP+PC+DL+II
-- 2010-10-24 335 12.1 M53d xc3s1200e-4 1357 4546 242 2618 ok: LP+PC+DL+II
-- 2010-10-17 333 12.1 M53d xc3s1200e-4 1350 4541 242 2617 ok: LP+PC+DL+II
-- 2010-10-16 332 12.1 M53d xc3s1200e-4 1338 4545 242 2629 ok: LP+PC+DL+II
-- 2010-06-27 310 12.1 M53d xc3s1200e-4 1337 4307 242 2630 ok: LP+PC+DL+II
-- 2010-06-26 309 11.4 L68 xc3s1200e-4 1318 4293 242 2612 ok: LP+PC+DL+II
-- 2010-06-18 306 12.1 M53d xc3s1200e-4 1319 4300 242 2624 ok: LP+PC+DL+II
-- " 306 11.4 L68 xc3s1200e-4 1319 4286 242 2618 ok: LP+PC+DL+II
-- " 306 10.1.02 K39 xc3s1200e-4 1309 4311 242 2665 ok: LP+PC+DL+II
-- " 306 9.2.02 J40 xc3s1200e-4 1316 4259 242 2656 ok: LP+PC+DL+II
-- " 306 9.1 J30 xc3s1200e-4 1311 4260 242 2643 ok: LP+PC+DL+II
-- " 306 8.2.03 I34 xc3s1200e-4 1371 4394 242 2765 ok: LP+PC+DL+II
-- 2010-06-13 305 11.4 L68 xc3s1200e-4 1318 4360 242 2629 ok: LP+PC+DL+II
-- 2010-06-12 304 11.4 L68 xc3s1200e-4 1323 4201 242 2574 ok: LP+PC+DL+II
-- 2010-06-03 300 11.4 L68 xc3s1200e-4 1318 4181 242 2572 ok: LP+PC+DL+II
-- 2010-06-03 299 11.4 L68 xc3s1200e-4 1250 4071 224 2489 ok: LP+PC+DL+II
-- 2010-05-26 296 11.4 L68 xc3s1200e-4 1284 4079 224 2492 ok: LP+PC+DL+II
-- Note: till 2010-10-24 lutm included 'route-thru', after only logic
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-12-18 440 1.2.7 use rlink_sp1c
-- 2011-11-26 433 1.2.6 use nx_cram_(dummy|memctl_as) now
-- 2011-11-23 432 1.2.5 update O_FLA_CE_N usage
-- 2011-11-19 427 1.2.4 now numeric_std clean
-- 2011-11-17 426 1.2.3 use dcm_sfs now
-- 2011-07-09 391 1.2.2 use now bp_rs232_2l4l_iob
-- 2011-07-08 390 1.2.1 use now sn_humanio
-- 2010-12-30 351 1.2 ported to rbv3
-- 2010-11-27 341 1.1.8 add DCM; new sys_conf consts for mem and clkdiv
-- 2010-11-13 338 1.1.7 add O_CLKSYS (for DCM derived system clock)
-- 2010-11-06 336 1.1.6 rename input pin CLK -> I_CLK50
-- 2010-10-23 335 1.1.5 rename RRI_LAM->RB_LAM;
-- 2010-06-26 309 1.1.4 use constants for rbus addresses (rbaddr_...)
-- BUGFIX: resolve rbus address clash hio<->ibr
-- 2010-06-18 306 1.1.3 change proc_led sensitivity list to avoid xst warn;
-- rename RB_ADDR->RB_ADDR_CORE, add RB_ADDR_IBUS;
-- remove pdp11_ibdr_rri
-- 2010-06-13 305 1.1.2 add CP_ADDR, wire up pdp11_core_rri->pdp11_core
-- 2010-06-12 304 1.1.1 re-do LED driver logic (show cpu modes or cpurust)
-- 2010-06-11 303 1.1 use IB_MREQ.racc instead of RRI_REQ
-- 2010-06-03 300 1.0.2 use default FAWIDTH for rri_core_serport
-- use s3_humanio_rri
-- 2010-05-30 297 1.0.1 put MEM_ACT_(R|W) on LED 6,7
-- 2010-05-28 295 1.0 Initial version (derived from sys_w11a_s3)
------------------------------------------------------------------------------
--
-- w11a test design for nexys2
-- w11a + rlink + serport
--
-- Usage of Nexys 2 Switches, Buttons, LEDs:
--
-- SWI(7:2): no function (only connected to sn_humanio_rbus)
-- SWI(1): 1 enable XON
-- SWI(0): 0 -> main board RS232 port
-- 1 -> Pmod B/top RS232 port
--
-- LED(7) MEM_ACT_W
-- (6) MEM_ACT_R
-- (5) cmdbusy (all rlink access, mostly rdma)
-- (4:0): if cpugo=1 show cpu mode activity
-- (4) kernel mode, pri>0
-- (3) kernel mode, pri=0
-- (2) kernel mode, wait
-- (1) supervisor mode
-- (0) user mode
-- if cpugo=0 shows cpurust
-- (3:0) cpurust code
-- (4) '1'
--
-- DP(3): not SER_MONI.txok (shows tx back preasure)
-- DP(2): SER_MONI.txact (shows tx activity)
-- DP(1): not SER_MONI.rxok (shows rx back preasure)
-- DP(0): SER_MONI.rxact (shows rx activity)
--
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
use work.xlib.all;
use work.genlib.all;
use work.serport.all;
use work.rblib.all;
use work.rlinklib.all;
use work.bpgenlib.all;
use work.nxcramlib.all;
use work.iblib.all;
use work.ibdlib.all;
use work.pdp11.all;
use work.sys_conf.all;
-- ----------------------------------------------------------------------------
entity sys_w11a_n2 is -- top level
-- implements nexys2_fusp_aif
port (
I_CLK50 : in slbit; -- 50 MHz clock
O_CLKSYS : out slbit; -- DCM derived system clock
I_RXD : in slbit; -- receive data (board view)
O_TXD : out slbit; -- transmit data (board view)
I_SWI : in slv8; -- n2 switches
I_BTN : in slv4; -- n2 buttons
O_LED : out slv8; -- n2 leds
O_ANO_N : out slv4; -- 7 segment disp: anodes (act.low)
O_SEG_N : out slv8; -- 7 segment disp: segments (act.low)
O_MEM_CE_N : out slbit; -- cram: chip enable (act.low)
O_MEM_BE_N : out slv2; -- cram: byte enables (act.low)
O_MEM_WE_N : out slbit; -- cram: write enable (act.low)
O_MEM_OE_N : out slbit; -- cram: output enable (act.low)
O_MEM_ADV_N : out slbit; -- cram: address valid (act.low)
O_MEM_CLK : out slbit; -- cram: clock
O_MEM_CRE : out slbit; -- cram: command register enable
I_MEM_WAIT : in slbit; -- cram: mem wait
O_MEM_ADDR : out slv23; -- cram: address lines
IO_MEM_DATA : inout slv16; -- cram: data lines
O_FLA_CE_N : out slbit; -- flash ce.. (act.low)
O_FUSP_RTS_N : out slbit; -- fusp: rs232 rts_n
I_FUSP_CTS_N : in slbit; -- fusp: rs232 cts_n
I_FUSP_RXD : in slbit; -- fusp: rs232 rx
O_FUSP_TXD : out slbit -- fusp: rs232 tx
);
end sys_w11a_n2;
architecture syn of sys_w11a_n2 is
signal CLK : slbit := '0';
signal RXD : slbit := '1';
signal TXD : slbit := '0';
signal RTS_N : slbit := '0';
signal CTS_N : slbit := '0';
signal SWI : slv8 := (others=>'0');
signal BTN : slv4 := (others=>'0');
signal LED : slv8 := (others=>'0');
signal DSP_DAT : slv16 := (others=>'0');
signal DSP_DP : slv4 := (others=>'0');
signal RB_LAM : slv16 := (others=>'0');
signal RB_STAT : slv3 := (others=>'0');
signal SER_MONI : serport_moni_type := serport_moni_init;
signal RB_MREQ : rb_mreq_type := rb_mreq_init;
signal RB_SRES : rb_sres_type := rb_sres_init;
signal RB_SRES_CPU : rb_sres_type := rb_sres_init;
signal RB_SRES_IBD : rb_sres_type := rb_sres_init;
signal RB_SRES_HIO : rb_sres_type := rb_sres_init;
signal RESET : slbit := '0';
signal CE_USEC : slbit := '0';
signal CE_MSEC : slbit := '0';
signal CPU_RESET : slbit := '0';
signal CP_CNTL : cp_cntl_type := cp_cntl_init;
signal CP_ADDR : cp_addr_type := cp_addr_init;
signal CP_DIN : slv16 := (others=>'0');
signal CP_STAT : cp_stat_type := cp_stat_init;
signal CP_DOUT : slv16 := (others=>'0');
signal EI_PRI : slv3 := (others=>'0');
signal EI_VECT : slv9_2 := (others=>'0');
signal EI_ACKM : slbit := '0';
signal EM_MREQ : em_mreq_type := em_mreq_init;
signal EM_SRES : em_sres_type := em_sres_init;
signal HM_ENA : slbit := '0';
signal MEM70_FMISS : slbit := '0';
signal CACHE_FMISS : slbit := '0';
signal CACHE_CHIT : slbit := '0';
signal MEM_REQ : slbit := '0';
signal MEM_WE : slbit := '0';
signal MEM_BUSY : slbit := '0';
signal MEM_ACK_R : slbit := '0';
signal MEM_ACT_R : slbit := '0';
signal MEM_ACT_W : slbit := '0';
signal MEM_ADDR : slv20 := (others=>'0');
signal MEM_BE : slv4 := (others=>'0');
signal MEM_DI : slv32 := (others=>'0');
signal MEM_DO : slv32 := (others=>'0');
signal MEM_ADDR_EXT : slv22 := (others=>'0');
signal BRESET : slbit := '0';
signal IB_MREQ : ib_mreq_type := ib_mreq_init;
signal IB_SRES : ib_sres_type := ib_sres_init;
signal IB_SRES_MEM70 : ib_sres_type := ib_sres_init;
signal IB_SRES_IBDR : ib_sres_type := ib_sres_init;
signal DM_STAT_DP : dm_stat_dp_type := dm_stat_dp_init;
signal DM_STAT_VM : dm_stat_vm_type := dm_stat_vm_init;
signal DM_STAT_CO : dm_stat_co_type := dm_stat_co_init;
signal DM_STAT_SY : dm_stat_sy_type := dm_stat_sy_init;
signal DISPREG : slv16 := (others=>'0');
constant rbaddr_core0 : slv8 := "00000000";
constant rbaddr_ibus : slv8 := "10000000";
constant rbaddr_hio : slv8 := "11000000";
begin
assert (sys_conf_clksys mod 1000000) = 0
report "assert sys_conf_clksys on MHz grid"
severity failure;
DCM : dcm_sfs
generic map (
CLKFX_DIVIDE => sys_conf_clkfx_divide,
CLKFX_MULTIPLY => sys_conf_clkfx_multiply,
CLKIN_PERIOD => 20.0)
port map (
CLKIN => I_CLK50,
CLKFX => CLK,
LOCKED => open
);
O_CLKSYS <= CLK;
CLKDIV : clkdivce
generic map (
CDUWIDTH => 6,
USECDIV => sys_conf_clksys_mhz,
MSECDIV => 1000)
port map (
CLK => CLK,
CE_USEC => CE_USEC,
CE_MSEC => CE_MSEC
);
IOB_RS232 : bp_rs232_2l4l_iob
port map (
CLK => CLK,
RESET => '0',
SEL => SWI(0),
RXD => RXD,
TXD => TXD,
CTS_N => CTS_N,
RTS_N => RTS_N,
I_RXD0 => I_RXD,
O_TXD0 => O_TXD,
I_RXD1 => I_FUSP_RXD,
O_TXD1 => O_FUSP_TXD,
I_CTS1_N => I_FUSP_CTS_N,
O_RTS1_N => O_FUSP_RTS_N
);
HIO : sn_humanio_rbus
generic map (
DEBOUNCE => sys_conf_hio_debounce,
RB_ADDR => rbaddr_hio)
port map (
CLK => CLK,
RESET => RESET,
CE_MSEC => CE_MSEC,
RB_MREQ => RB_MREQ,
RB_SRES => RB_SRES_HIO,
SWI => SWI,
BTN => BTN,
LED => LED,
DSP_DAT => DSP_DAT,
DSP_DP => DSP_DP,
I_SWI => I_SWI,
I_BTN => I_BTN,
O_LED => O_LED,
O_ANO_N => O_ANO_N,
O_SEG_N => O_SEG_N
);
RLINK : rlink_sp1c
generic map (
ATOWIDTH => 6, -- 64 cycles access timeout
ITOWIDTH => 6, -- 64 periods max idle timeout
CPREF => c_rlink_cpref,
IFAWIDTH => 5, -- 32 word input fifo
OFAWIDTH => 5, -- 32 word output fifo
ENAPIN_RLMON => sbcntl_sbf_rlmon,
ENAPIN_RBMON => sbcntl_sbf_rbmon,
CDWIDTH => 13,
CDINIT => sys_conf_ser2rri_cdinit)
port map (
CLK => CLK,
CE_USEC => CE_USEC,
CE_MSEC => CE_MSEC,
CE_INT => CE_MSEC,
RESET => RESET,
ENAXON => SWI(1),
ENAESC => SWI(1),
RXSD => RXD,
TXSD => TXD,
CTS_N => CTS_N,
RTS_N => RTS_N,
RB_MREQ => RB_MREQ,
RB_SRES => RB_SRES,
RB_LAM => RB_LAM,
RB_STAT => RB_STAT,
RL_MONI => open,
SER_MONI => SER_MONI
);
RB_SRES_OR : rb_sres_or_3
port map (
RB_SRES_1 => RB_SRES_CPU,
RB_SRES_2 => RB_SRES_IBD,
RB_SRES_3 => RB_SRES_HIO,
RB_SRES_OR => RB_SRES
);
RB2CP : pdp11_core_rbus
generic map (
RB_ADDR_CORE => rbaddr_core0,
RB_ADDR_IBUS => rbaddr_ibus)
port map (
CLK => CLK,
RESET => RESET,
RB_MREQ => RB_MREQ,
RB_SRES => RB_SRES_CPU,
RB_STAT => RB_STAT,
RB_LAM => RB_LAM(0),
CPU_RESET => CPU_RESET,
CP_CNTL => CP_CNTL,
CP_ADDR => CP_ADDR,
CP_DIN => CP_DIN,
CP_STAT => CP_STAT,
CP_DOUT => CP_DOUT
);
CORE : pdp11_core
port map (
CLK => CLK,
RESET => CPU_RESET,
CP_CNTL => CP_CNTL,
CP_ADDR => CP_ADDR,
CP_DIN => CP_DIN,
CP_STAT => CP_STAT,
CP_DOUT => CP_DOUT,
EI_PRI => EI_PRI,
EI_VECT => EI_VECT,
EI_ACKM => EI_ACKM,
EM_MREQ => EM_MREQ,
EM_SRES => EM_SRES,
BRESET => BRESET,
IB_MREQ_M => IB_MREQ,
IB_SRES_M => IB_SRES,
DM_STAT_DP => DM_STAT_DP,
DM_STAT_VM => DM_STAT_VM,
DM_STAT_CO => DM_STAT_CO
);
MEM_BRAM: if sys_conf_bram > 0 generate
signal HM_VAL_BRAM : slbit := '0';
begin
MEM : pdp11_bram
generic map (
AWIDTH => sys_conf_bram_awidth)
port map (
CLK => CLK,
GRESET => CPU_RESET,
EM_MREQ => EM_MREQ,
EM_SRES => EM_SRES
);
HM_VAL_BRAM <= not EM_MREQ.we; -- assume hit if read, miss if write
MEM70: pdp11_mem70
port map (
CLK => CLK,
CRESET => BRESET,
HM_ENA => EM_MREQ.req,
HM_VAL => HM_VAL_BRAM,
CACHE_FMISS => MEM70_FMISS,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_MEM70
);
SRAM_PROT : nx_cram_dummy -- connect CRAM to protection dummy
port map (
O_MEM_CE_N => O_MEM_CE_N,
O_MEM_BE_N => O_MEM_BE_N,
O_MEM_WE_N => O_MEM_WE_N,
O_MEM_OE_N => O_MEM_OE_N,
O_MEM_ADV_N => O_MEM_ADV_N,
O_MEM_CLK => O_MEM_CLK,
O_MEM_CRE => O_MEM_CRE,
I_MEM_WAIT => I_MEM_WAIT,
O_MEM_ADDR => O_MEM_ADDR,
IO_MEM_DATA => IO_MEM_DATA
);
O_FLA_CE_N <= '1'; -- keep Flash memory disabled
end generate MEM_BRAM;
MEM_SRAM: if sys_conf_bram = 0 generate
CACHE: pdp11_cache
port map (
CLK => CLK,
GRESET => CPU_RESET,
EM_MREQ => EM_MREQ,
EM_SRES => EM_SRES,
FMISS => CACHE_FMISS,
CHIT => CACHE_CHIT,
MEM_REQ => MEM_REQ,
MEM_WE => MEM_WE,
MEM_BUSY => MEM_BUSY,
MEM_ACK_R => MEM_ACK_R,
MEM_ADDR => MEM_ADDR,
MEM_BE => MEM_BE,
MEM_DI => MEM_DI,
MEM_DO => MEM_DO
);
MEM70: pdp11_mem70
port map (
CLK => CLK,
CRESET => BRESET,
HM_ENA => HM_ENA,
HM_VAL => CACHE_CHIT,
CACHE_FMISS => MEM70_FMISS,
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_MEM70
);
HM_ENA <= EM_SRES.ack_r or EM_SRES.ack_w;
CACHE_FMISS <= MEM70_FMISS or sys_conf_cache_fmiss;
MEM_ADDR_EXT <= "00" & MEM_ADDR; -- just use lower 4 MB (of 16 MB)
SRAM_CTL: nx_cram_memctl_as
generic map (
READ0DELAY => sys_conf_memctl_read0delay,
READ1DELAY => sys_conf_memctl_read1delay,
WRITEDELAY => sys_conf_memctl_writedelay)
port map (
CLK => CLK,
RESET => CPU_RESET,
REQ => MEM_REQ,
WE => MEM_WE,
BUSY => MEM_BUSY,
ACK_R => MEM_ACK_R,
ACK_W => open,
ACT_R => MEM_ACT_R,
ACT_W => MEM_ACT_W,
ADDR => MEM_ADDR_EXT,
BE => MEM_BE,
DI => MEM_DI,
DO => MEM_DO,
O_MEM_CE_N => O_MEM_CE_N,
O_MEM_BE_N => O_MEM_BE_N,
O_MEM_WE_N => O_MEM_WE_N,
O_MEM_OE_N => O_MEM_OE_N,
O_MEM_ADV_N => O_MEM_ADV_N,
O_MEM_CLK => O_MEM_CLK,
O_MEM_CRE => O_MEM_CRE,
I_MEM_WAIT => I_MEM_WAIT,
O_MEM_ADDR => O_MEM_ADDR,
IO_MEM_DATA => IO_MEM_DATA
);
O_FLA_CE_N <= '1'; -- keep Flash memory disabled
end generate MEM_SRAM;
IB_SRES_OR : ib_sres_or_2
port map (
IB_SRES_1 => IB_SRES_MEM70,
IB_SRES_2 => IB_SRES_IBDR,
IB_SRES_OR => IB_SRES
);
IBD_MINI : if false generate
begin
IBDR_SYS : ibdr_minisys
port map (
CLK => CLK,
CE_USEC => CE_USEC,
CE_MSEC => CE_MSEC,
RESET => CPU_RESET,
BRESET => BRESET,
RB_LAM => RB_LAM(15 downto 1),
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_IBDR,
EI_ACKM => EI_ACKM,
EI_PRI => EI_PRI,
EI_VECT => EI_VECT,
DISPREG => DISPREG
);
end generate IBD_MINI;
IBD_MAXI : if true generate
begin
IBDR_SYS : ibdr_maxisys
port map (
CLK => CLK,
CE_USEC => CE_USEC,
CE_MSEC => CE_MSEC,
RESET => CPU_RESET,
BRESET => BRESET,
RB_LAM => RB_LAM(15 downto 1),
IB_MREQ => IB_MREQ,
IB_SRES => IB_SRES_IBDR,
EI_ACKM => EI_ACKM,
EI_PRI => EI_PRI,
EI_VECT => EI_VECT,
DISPREG => DISPREG
);
end generate IBD_MAXI;
DSP_DAT(15 downto 0) <= DISPREG;
DSP_DP(3) <= not SER_MONI.txok;
DSP_DP(2) <= SER_MONI.txact;
DSP_DP(1) <= not SER_MONI.rxok;
DSP_DP(0) <= SER_MONI.rxact;
proc_led: process (MEM_ACT_W, MEM_ACT_R, CP_STAT, DM_STAT_DP.psw)
variable iled : slv8 := (others=>'0');
begin
iled := (others=>'0');
iled(7) := MEM_ACT_W;
iled(6) := MEM_ACT_R;
iled(5) := CP_STAT.cmdbusy;
if CP_STAT.cpugo = '1' then
case DM_STAT_DP.psw.cmode is
when c_psw_kmode =>
if CP_STAT.cpuwait = '1' then
iled(2) := '1';
elsif unsigned(DM_STAT_DP.psw.pri) = 0 then
iled(3) := '1';
else
iled(4) := '1';
end if;
when c_psw_smode =>
iled(1) := '1';
when c_psw_umode =>
iled(0) := '1';
when others => null;
end case;
else
iled(4) := '1';
iled(3 downto 0) := CP_STAT.cpurust;
end if;
LED <= iled;
end process;
-- synthesis translate_off
DM_STAT_SY.emmreq <= EM_MREQ;
DM_STAT_SY.emsres <= EM_SRES;
DM_STAT_SY.chit <= CACHE_CHIT;
TMU : pdp11_tmu_sb
generic map (
ENAPIN => 13)
port map (
CLK => CLK,
DM_STAT_DP => DM_STAT_DP,
DM_STAT_VM => DM_STAT_VM,
DM_STAT_CO => DM_STAT_CO,
DM_STAT_SY => DM_STAT_SY
);
-- synthesis translate_on
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_snhumanio/nexys2/sys_conf.vhd | 2 | 1232 | -- $Id: sys_conf.vhd 410 2011-09-18 11:23:09Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: sys_conf
-- Description: Definitions for sys_tst_snhumanio_n2 (for synthesis)
--
-- Dependencies: -
-- Tool versions: xst 13.1; ghdl 0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-09-17 410 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package sys_conf is
constant sys_conf_hio_debounce : boolean := true; -- instantiate debouncers
end package sys_conf;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/serport/serport_uart_tx.vhd | 2 | 3987 | -- $Id: serport_uart_tx.vhd 417 2011-10-22 10:30:29Z mueller $
--
-- Copyright 2007-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: serport_uart_tx - syn
-- Description: serial port UART - transmitter
--
-- Dependencies: -
-- Test bench: tb/tb_serport_uart_rxtx
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 13.1; ghdl 0.18-0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-10-22 417 1.0.4 now numeric_std clean
-- 2007-10-21 91 1.0.3 use 1 stop bits (redesigned _rx allows this)
-- 2007-10-19 90 1.0.2 use 2 stop bits (allow CLKDIV=0 operation in sim)
-- 2007-10-12 88 1.0.1 avoid ieee.std_logic_unsigned, use cast to unsigned
-- 2007-06-30 62 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
entity serport_uart_tx is -- serial port uart: transmit part
generic (
CDWIDTH : positive := 13); -- clk divider width
port (
CLK : in slbit; -- clock
RESET : in slbit; -- reset
CLKDIV : in slv(CDWIDTH-1 downto 0); -- clock divider setting
TXSD : out slbit; -- transmit serial data (uart view)
TXDATA : in slv8; -- transmit data in
TXENA : in slbit; -- transmit data enable
TXBUSY : out slbit -- transmit busy
);
end serport_uart_tx;
architecture syn of serport_uart_tx is
type regs_type is record
ccnt : slv(CDWIDTH-1 downto 0); -- clock divider counter
bcnt : slv4; -- bit counter
sreg : slv9; -- output shift register
busy : slbit;
end record regs_type;
constant cntzero : slv(CDWIDTH-1 downto 0) := (others=>'0');
constant regs_init : regs_type := (
cntzero,
(others=>'0'),
(others=>'1'), -- sreg to all 1 !!
'0'
);
signal R_REGS : regs_type := regs_init; -- state registers
signal N_REGS : regs_type := regs_init; -- next value state regs
begin
proc_regs: process (CLK)
begin
if rising_edge(CLK) then
R_REGS <= N_REGS;
end if;
end process proc_regs;
proc_next: process (R_REGS, RESET, CLKDIV, TXDATA, TXENA)
variable r : regs_type := regs_init;
variable n : regs_type := regs_init;
variable ld_ccnt : slbit := '0';
begin
r := R_REGS;
n := R_REGS;
ld_ccnt := '0';
if r.busy = '0' then
ld_ccnt := '1';
n.bcnt := (others=>'0');
if TXENA = '1' then
n.sreg := TXDATA & '0'; -- add start (0) bit
n.busy := '1';
end if;
else
if unsigned(r.ccnt) = 0 then
ld_ccnt := '1';
n.sreg := '1' & r.sreg(8 downto 1);
n.bcnt := slv(unsigned(r.bcnt) + 1);
if unsigned(r.bcnt) = 9 then -- if 10 bits send
n.busy := '0'; -- declare all done
end if;
end if;
end if;
if RESET = '1' then
ld_ccnt := '1';
n.busy := '0';
end if;
if ld_ccnt = '1' then
n.ccnt := CLKDIV;
else
n.ccnt := slv(unsigned(r.ccnt) - 1);
end if;
N_REGS <= n;
TXBUSY <= r.busy;
TXSD <= r.sreg(0);
end process proc_next;
end syn;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/simlib/simlib.vhd | 1 | 28203 | -- $Id: simlib.vhd 427 2011-11-19 21:04:11Z mueller $
--
-- Copyright 2006-2011 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: simlib - sim
-- Description: Support routines for test benches
--
-- Dependencies: -
-- Test bench: -
-- Target Devices: generic
-- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-18 427 1.3.8 now numeric_std clean
-- 2010-12-22 346 1.3.7 rename readcommand -> readdotcomm
-- 2010-11-13 338 1.3.6 add simclkcnt; xx.x ns time in writetimestamp()
-- 2008-03-24 129 1.3.5 CLK_CYCLE now 31 bits
-- 2008-03-02 121 1.3.4 added readempty (to discard rest of line)
-- 2007-12-27 106 1.3.3 added simclk2v
-- 2007-12-15 101 1.3.2 add read_ea(time), readtagval[_ea](std_logic)
-- 2007-10-12 88 1.3.1 avoid ieee.std_logic_unsigned, use cast to unsigned
-- 2007-08-28 76 1.3 added writehex and writegen
-- 2007-08-10 72 1.2.2 remove entity simclk, put into separate source
-- 2007-08-03 71 1.2.1 readgen, readtagval, readtagval2: add base arg
-- 2007-07-29 70 1.2 readtagval2: add tag=- support; add readword_ea,
-- readoptchar, writetimestamp
-- 2007-07-28 69 1.1.1 rename readrest -> testempty; add readgen
-- use readgen in readtagval() and readtagval2()
-- 2007-07-22 68 1.1 add readrest, readtagval, readtagval2
-- 2007-06-30 62 1.0.1 remove clock_period ect constant defs
-- 2007-06-14 56 1.0 Initial version (renamed from pdp11_sim.vhd)
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use ieee.std_logic_textio.all;
use std.textio.all;
use work.slvtypes.all;
package simlib is
constant null_char : character := character'val(0); -- '\0'
constant null_string : string(1 to 1) := (others=>null_char); -- "\0"
procedure readwhite( -- read over white space
L: inout line); -- line
procedure readoct( -- read slv in octal base (arb. length)
L: inout line; -- line
value: out std_logic_vector; -- value to be read
good: out boolean); -- success flag
procedure readhex( -- read slv in hex base (arb. length)
L: inout line; -- line
value: out std_logic_vector; -- value to be read
good: out boolean); -- success flag
procedure readgen( -- read slv generic base
L: inout line; -- line
value: out std_logic_vector; -- value to be read
good: out boolean; -- success flag
base: in integer:= 2); -- default base
procedure readcomment(
L: inout line;
good: out boolean);
procedure readdotcomm(
L: inout line;
name: out string;
good: out boolean);
procedure readword(
L: inout line;
name: out string;
good: out boolean);
procedure readoptchar(
L: inout line;
char: in character;
good: out boolean);
procedure readempty(
L: inout line);
procedure testempty(
L: inout line;
good: out boolean);
procedure testempty_ea(
L: inout line);
procedure read_ea(
L: inout line;
value: out integer);
procedure read_ea(
L: inout line;
value: out time);
procedure read_ea(
L: inout line;
value: out std_logic);
procedure read_ea(
L: inout line;
value: out std_logic_vector);
procedure readoct_ea(
L: inout line;
value: out std_logic_vector);
procedure readhex_ea(
L: inout line;
value: out std_logic_vector);
procedure readgen_ea(
L: inout line;
value: out std_logic_vector;
base: in integer:= 2);
procedure readword_ea(
L: inout line;
name: out string);
procedure readtagval(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic_vector;
good: out boolean;
base: in integer:= 2);
procedure readtagval_ea(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic_vector;
base: in integer:= 2);
procedure readtagval(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic;
good: out boolean);
procedure readtagval_ea(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic);
procedure readtagval2(
L: inout line;
tag: in string;
match: out boolean;
val1: out std_logic_vector;
val2: out std_logic_vector;
good: out boolean;
base: in integer:= 2);
procedure readtagval2_ea(
L: inout line;
tag: in string;
match: out boolean;
val1: out std_logic_vector;
val2: out std_logic_vector;
base: in integer:= 2);
procedure writeoct( -- write slv in octal base (arb. length)
L: inout line; -- line
value: in std_logic_vector; -- value to be written
justified: in side:=right; -- justification (left/right)
field: in width:=0); -- field width
procedure writehex( -- write slv in hex base (arb. length)
L: inout line; -- line
value: in std_logic_vector; -- value to be written
justified: in side:=right; -- justification (left/right)
field: in width:=0); -- field width
procedure writegen( -- write slv in generic base (arb. lth)
L: inout line; -- line
value: in std_logic_vector; -- value to be written
justified: in side:=right; -- justification (left/right)
field: in width:=0; -- field width
base: in integer:= 2); -- default base
procedure writetimestamp(
L: inout line;
clkcyc: in slv31;
str : in string := null_string);
-- ----------------------------------------------------------------------------
component simclk is -- test bench clock generator
generic (
PERIOD : time := 20 ns; -- clock period
OFFSET : time := 200 ns); -- clock offset (first up transition)
port (
CLK : out slbit; -- clock
CLK_CYCLE : out slv31; -- clock cycle number
CLK_STOP : in slbit -- clock stop trigger
);
end component;
component simclkv is -- test bench clock generator
-- with variable periods
port (
CLK : out slbit; -- clock
CLK_CYCLE : out slv31; -- clock cycle number
CLK_PERIOD : in time; -- clock period
CLK_HOLD : in slbit; -- if 1, hold clocks in 0 state
CLK_STOP : in slbit -- clock stop trigger
);
end component;
component simclkcnt is -- test bench system clock cycle counter
port (
CLK : in slbit; -- clock
CLK_CYCLE : out slv31 -- clock cycle number
);
end component;
end package simlib;
-- ----------------------------------------------------------------------------
package body simlib is
procedure readwhite( -- read over white space
L: inout line) is -- line
variable ch : character;
begin
while L'length>0 loop
ch := L(L'left);
exit when (ch/=' ' and ch/=HT);
read(L,ch);
end loop;
end procedure readwhite;
-- -------------------------------------
procedure readoct( -- read slv in octal base (arb. length)
L: inout line; -- line
value: out std_logic_vector; -- value to be read
good: out boolean) is -- success flag
variable nibble : std_logic_vector(2 downto 0);
variable sum : std_logic_vector(31 downto 0);
variable ndig : integer; -- number of digits
variable ok : boolean;
variable ichar : character;
begin
assert not value'ascending(1)
report "readoct called with ascending range"
severity failure;
assert value'length<=32
report "readoct called with value'length > 32"
severity failure;
readwhite(L);
ndig := 0;
sum := (others=>'U');
while L'length>0 loop
ok := true;
case L(L'left) is
when '0' => nibble := "000";
when '1' => nibble := "001";
when '2' => nibble := "010";
when '3' => nibble := "011";
when '4' => nibble := "100";
when '5' => nibble := "101";
when '6' => nibble := "110";
when '7' => nibble := "111";
when 'u'|'U' => nibble := "UUU";
when 'x'|'X' => nibble := "XXX";
when 'z'|'Z' => nibble := "ZZZ";
when '-' => nibble := "---";
when others => ok := false;
end case;
exit when not ok;
read(L,ichar);
ndig := ndig + 1;
sum(sum'left downto 3) := sum(sum'left-3 downto 0);
sum(2 downto 0) := nibble;
end loop;
ok := ndig>0;
value := sum(value'range);
good := ok;
end procedure readoct;
-- -------------------------------------
procedure readhex( -- read slv in hex base (arb. length)
L: inout line; -- line
value: out std_logic_vector; -- value to be read
good: out boolean) is -- success flag
variable nibble : std_logic_vector(3 downto 0);
variable sum : std_logic_vector(31 downto 0);
variable ndig : integer; -- number of digits
variable ok : boolean;
variable ichar : character;
begin
assert not value'ascending(1)
report "readhex called with ascending range"
severity failure;
assert value'length<=32
report "readhex called with value'length > 32"
severity failure;
readwhite(L);
ndig := 0;
sum := (others=>'U');
while L'length>0 loop
ok := true;
case L(L'left) is
when '0' => nibble := "0000";
when '1' => nibble := "0001";
when '2' => nibble := "0010";
when '3' => nibble := "0011";
when '4' => nibble := "0100";
when '5' => nibble := "0101";
when '6' => nibble := "0110";
when '7' => nibble := "0111";
when '8' => nibble := "1000";
when '9' => nibble := "1001";
when 'a'|'A' => nibble := "1010";
when 'b'|'B' => nibble := "1011";
when 'c'|'C' => nibble := "1100";
when 'd'|'D' => nibble := "1101";
when 'e'|'E' => nibble := "1110";
when 'f'|'F' => nibble := "1111";
when 'u'|'U' => nibble := "UUUU";
when 'x'|'X' => nibble := "XXXX";
when 'z'|'Z' => nibble := "ZZZZ";
when '-' => nibble := "----";
when others => ok := false;
end case;
exit when not ok;
read(L,ichar);
ndig := ndig + 1;
sum(sum'left downto 4) := sum(sum'left-4 downto 0);
sum(3 downto 0) := nibble;
end loop;
ok := ndig>0;
value := sum(value'range);
good := ok;
end procedure readhex;
-- -------------------------------------
procedure readgen( -- read slv generic base
L: inout line; -- line
value: out std_logic_vector; -- value to be read
good: out boolean; -- success flag
base: in integer := 2) is -- default base
variable nibble : std_logic_vector(3 downto 0);
variable sum : std_logic_vector(31 downto 0);
variable lbase : integer; -- local base
variable cbase : integer; -- current base
variable ok : boolean;
variable ivalue : integer;
variable ichar : character;
begin
assert not value'ascending(1)
report "readgen called with ascending range"
severity failure;
assert value'length<=32
report "readgen called with value'length > 32"
severity failure;
assert base=2 or base=8 or base=10 or base=16
report "readgen base not 2,8,10, or 16"
severity failure;
readwhite(L);
cbase := base;
lbase := 0;
ok := true;
if L'length >= 2 then
if L(L'left+1) = '"' then
case L(L'left) is
when 'b'|'B' => lbase := 2;
when 'o'|'O' => lbase := 8;
when 'd'|'D' => lbase := 10;
when 'x'|'X' => lbase := 16;
when others => ok := false;
end case;
end if;
if lbase /= 0 then
read(L, ichar);
read(L, ichar);
cbase := lbase;
end if;
end if;
if ok then
case cbase is
when 2 => read(L, value, ok);
when 8 => readoct(L, value, ok);
when 16 => readhex(L, value, ok);
when 10 =>
read(L, ivalue, ok);
-- the following if allows to enter negative integers, e.g. -1 for all-1
if ivalue >= 0 then
value := slv(to_unsigned(ivalue, value'length));
else
value := slv(to_signed(ivalue, value'length));
end if;
when others => null;
end case;
end if;
if ok and lbase/=0 then
if L'length>0 and L(L'left)='"' then
read(L, ichar);
else
ok := false;
end if;
end if;
good := ok;
end procedure readgen;
-- -------------------------------------
procedure readcomment(
L: inout line;
good: out boolean) is
variable ichar : character;
begin
readwhite(L);
good := true;
if L'length > 0 then
good := false;
if L(L'left) = '#' then
good := true;
elsif L(L'left) = 'C' then
good := true;
writeline(output, L);
end if;
end if;
end procedure readcomment;
-- -------------------------------------
procedure readdotcomm(
L: inout line;
name: out string;
good: out boolean) is
begin
for i in name'range loop
name(i) := ' ';
end loop;
good := false;
if L'length>0 and L(L'left)='.' then
readword(L, name, good);
end if;
end procedure readdotcomm;
-- -------------------------------------
procedure readword(
L: inout line;
name: out string;
good: out boolean) is
variable ichar : character;
variable ind : integer;
begin
assert name'ascending(1)
report "readword called with descending range for name"
severity failure;
readwhite(L);
for i in name'range loop
name(i) := ' ';
end loop;
ind := name'left;
while L'length>0 and ind<=name'right loop
ichar := L(L'left);
exit when ichar=' ' or ichar=',' or ichar='|';
read(L,ichar);
name(ind) := ichar;
ind := ind + 1;
end loop;
good := ind /= name'left; -- ok if one non-blank found
end procedure readword;
-- -------------------------------------
procedure readoptchar(
L: inout line;
char: in character;
good: out boolean) is
variable ichar : character;
begin
good := false;
if L'length > 0 then
if L(L'left) = char then
read(L, ichar);
good := true;
end if;
end if;
end procedure readoptchar;
-- -------------------------------------
procedure readempty(
L: inout line) is
variable ch : character;
begin
while L'length>0 loop -- anything left ?
read(L,ch); -- read and discard it
end loop;
end procedure readempty;
-- -------------------------------------
procedure testempty(
L: inout line;
good: out boolean) is
begin
readwhite(L); -- discard white space
good := true; -- good if now empty
if L'length > 0 then -- anything left ?
good := false; -- assume bad
if L'length >= 2 and -- check for "--"
L(L'left)='-' and L(L'left+1)='-' then
good := true; -- in that case comment -> good
end if;
end if;
end procedure testempty;
-- -------------------------------------
procedure testempty_ea(
L: inout line) is
variable ok : boolean := false;
begin
testempty(L, ok);
assert ok report "extra chars in """ & L.all & """" severity failure;
end procedure testempty_ea;
-- -------------------------------------
procedure read_ea(
L: inout line;
value: out integer) is
variable ok : boolean := false;
begin
read(L, value, ok);
assert ok report "read(integer) conversion error in """ &
L.all & """" severity failure;
end procedure read_ea;
-- -------------------------------------
procedure read_ea(
L: inout line;
value: out time) is
variable ok : boolean := false;
begin
read(L, value, ok);
assert ok report "read(time) conversion error in """ &
L.all & """" severity failure;
end procedure read_ea;
-- -------------------------------------
procedure read_ea(
L: inout line;
value: out std_logic) is
variable ok : boolean := false;
begin
read(L, value, ok);
assert ok report "read(std_logic) conversion error in """ &
L.all & """" severity failure;
end procedure read_ea;
-- -------------------------------------
procedure read_ea(
L: inout line;
value: out std_logic_vector) is
variable ok : boolean := false;
begin
read(L, value, ok);
assert ok report "read(std_logic_vector) conversion error in """ &
L.all & """" severity failure;
end procedure read_ea;
-- -------------------------------------
procedure readoct_ea(
L: inout line;
value: out std_logic_vector) is
variable ok : boolean := false;
begin
readoct(L, value, ok);
assert ok report "readoct() conversion error in """ &
L.all & """" severity failure;
end procedure readoct_ea;
-- -------------------------------------
procedure readhex_ea(
L: inout line;
value: out std_logic_vector) is
variable ok : boolean := false;
begin
readhex(L, value, ok);
assert ok report "readhex() conversion error in """ &
L.all & """" severity failure;
end procedure readhex_ea;
-- -------------------------------------
procedure readgen_ea(
L: inout line;
value: out std_logic_vector;
base: in integer := 2) is
variable ok : boolean := false;
begin
readgen(L, value, ok, base);
assert ok report "readgen() conversion error in """ &
L.all & """" severity failure;
end procedure readgen_ea;
-- -------------------------------------
procedure readword_ea(
L: inout line;
name: out string) is
variable ok : boolean := false;
begin
readword(L, name, ok);
assert ok report "readword() read error in """ &
L.all & """" severity failure;
end procedure readword_ea;
-- -------------------------------------
procedure readtagval(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic_vector;
good: out boolean;
base: in integer:= 2) is
variable itag : string(tag'range);
variable ichar : character;
variable imatch : boolean;
begin
readwhite(L);
for i in val'range loop
val(i) := '0';
end loop;
good := true;
imatch := false;
if L'length > tag'length then
imatch := L(L'left to L'left+tag'length-1) = tag and
L(L'left+tag'length) = '=';
if imatch then
read(L, itag);
read(L, ichar);
readgen(L, val, good, base);
end if;
end if;
match := imatch;
end procedure readtagval;
-- -------------------------------------
procedure readtagval_ea(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic_vector;
base: in integer:= 2) is
variable ok : boolean := false;
begin
readtagval(L, tag, match, val, ok, base);
assert ok report "readtagval(std_logic_vector) conversion error in """ &
L.all & """" severity failure;
end procedure readtagval_ea;
-- -------------------------------------
procedure readtagval(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic;
good: out boolean) is
variable itag : string(tag'range);
variable ichar : character;
variable imatch : boolean;
begin
readwhite(L);
val := '0';
good := true;
imatch := false;
if L'length > tag'length then
imatch := L(L'left to L'left+tag'length-1) = tag and
L(L'left+tag'length) = '=';
if imatch then
read(L, itag);
read(L, ichar);
read(L, val, good);
end if;
end if;
match := imatch;
end procedure readtagval;
-- -------------------------------------
procedure readtagval_ea(
L: inout line;
tag: in string;
match: out boolean;
val: out std_logic) is
variable ok : boolean := false;
begin
readtagval(L, tag, match, val, ok);
assert ok report "readtagval(std_logic) conversion error in """ &
L.all & """" severity failure;
end procedure readtagval_ea;
-- -------------------------------------
procedure readtagval2(
L: inout line;
tag: in string;
match: out boolean;
val1: out std_logic_vector;
val2: out std_logic_vector;
good: out boolean;
base: in integer:= 2) is
variable itag : string(tag'range);
variable imatch : boolean;
variable igood : boolean;
variable ichar : character;
variable ok : boolean;
begin
readwhite(L);
for i in val1'range loop -- zero val1
val1(i) := '0';
end loop;
for i in val2'range loop -- zero val2
val2(i) := '0';
end loop;
igood := true;
imatch := false;
if L'length > tag'length then -- check for tag
imatch := L(L'left to L'left+tag'length-1) = tag and
L(L'left+tag'length) = '=';
if imatch then -- if found
read(L, itag); -- remove tag
read(L, ichar); -- remove =
igood := false;
readoptchar(L, '-', ok); -- check for tag=-
if ok then
for i in val2'range loop -- set mask to all 1 (ignore)
val2(i) := '1';
end loop;
igood := true;
else -- here if tag=bit[,bit]
readgen(L, val1, igood, base); -- read val1
if igood then
readoptchar(L, ',', ok); -- check(and remove) ,
if ok then
readgen(L, val2, igood, base); -- and read val2
end if;
end if;
end if;
end if;
end if;
match := imatch;
good := igood;
end procedure readtagval2;
-- -------------------------------------
procedure readtagval2_ea(
L: inout line;
tag: in string;
match: out boolean;
val1: out std_logic_vector;
val2: out std_logic_vector;
base: in integer:= 2) is
variable ok : boolean := false;
begin
readtagval2(L, tag, match, val1, val2, ok, base);
assert ok report "readtagval2() conversion error in """ &
L.all & """" severity failure;
end procedure readtagval2_ea;
-- -------------------------------------
procedure writeoct( -- write slv in octal base (arb. length)
L: inout line; -- line
value: in std_logic_vector; -- value to be written
justified: in side:=right; -- justification (left/right)
field: in width:=0) is -- field width
variable nbit : integer; -- number of bits
variable ndig : integer; -- number of digits
variable iwidth : integer;
variable ioffset : integer;
variable nibble : std_logic_vector(2 downto 0);
variable ochar : character;
begin
assert not value'ascending(1)
report "writeoct called with ascending range"
severity failure;
nbit := value'length(1);
ndig := (nbit+2)/3;
iwidth := nbit mod 3;
if iwidth = 0 then
iwidth := 3;
end if;
ioffset := value'left(1) - iwidth+1;
if justified=right and field>ndig then
for i in ndig+1 to field loop
write(L,' ');
end loop; -- i
end if;
for i in 0 to ndig-1 loop
nibble := "000";
nibble(iwidth-1 downto 0) := value(ioffset+iwidth-1 downto ioffset);
ochar := ' ';
for i in nibble'range loop
case nibble(i) is
when 'U' => ochar := 'U';
when 'X' => ochar := 'X';
when 'Z' => ochar := 'Z';
when '-' => ochar := '-';
when others => null;
end case;
end loop; -- i
if ochar = ' ' then
write(L,to_integer(unsigned(nibble)));
else
write(L,ochar);
end if;
iwidth := 3;
ioffset := ioffset - 3;
end loop; -- i
if justified=left and field>ndig then
for i in ndig+1 to field loop
write(L,' ');
end loop; -- i
end if;
end procedure writeoct;
-- -------------------------------------
procedure writehex( -- write slv in hex base (arb. length)
L: inout line; -- line
value: in std_logic_vector; -- value to be written
justified: in side:=right; -- justification (left/right)
field: in width:=0) is -- field width
variable nbit : integer; -- number of bits
variable ndig : integer; -- number of digits
variable iwidth : integer;
variable ioffset : integer;
variable nibble : std_logic_vector(3 downto 0);
variable ochar : character;
variable hextab : string(1 to 16) := "0123456789abcdef";
begin
assert not value'ascending(1)
report "writehex called with ascending range"
severity failure;
nbit := value'length(1);
ndig := (nbit+3)/4;
iwidth := nbit mod 4;
if iwidth = 0 then
iwidth := 4;
end if;
ioffset := value'left(1) - iwidth+1;
if justified=right and field>ndig then
for i in ndig+1 to field loop
write(L,' ');
end loop; -- i
end if;
for i in 0 to ndig-1 loop
nibble := "0000";
nibble(iwidth-1 downto 0) := value(ioffset+iwidth-1 downto ioffset);
ochar := ' ';
for i in nibble'range loop
case nibble(i) is
when 'U' => ochar := 'U';
when 'X' => ochar := 'X';
when 'Z' => ochar := 'Z';
when '-' => ochar := '-';
when others => null;
end case;
end loop; -- i
if ochar = ' ' then
write(L,hextab(to_integer(unsigned(nibble))+1));
else
write(L,ochar);
end if;
iwidth := 4;
ioffset := ioffset - 4;
end loop; -- i
if justified=left and field>ndig then
for i in ndig+1 to field loop
write(L,' ');
end loop; -- i
end if;
end procedure writehex;
-- -------------------------------------
procedure writegen( -- write slv in generic base (arb. lth)
L: inout line; -- line
value: in std_logic_vector; -- value to be written
justified: in side:=right; -- justification (left/right)
field: in width:=0; -- field width
base: in integer:=2) is -- default base
begin
case base is
when 2 => write(L, value, justified, field);
when 8 => writeoct(L, value, justified, field);
when 16 => writehex(L, value, justified, field);
when others => report "writegen base not 2,8, or 16"
severity failure;
end case;
end procedure writegen;
-- -------------------------------------
procedure writetimestamp(
L: inout line;
clkcyc: in slv31;
str: in string := null_string) is
variable t_nsec : integer := 0;
variable t_psec : integer := 0;
variable t_dnsec : integer := 0;
begin
t_nsec := now / 1 ns;
t_psec := (now - t_nsec * 1 ns) / 1 ps;
t_dnsec := t_psec/100;
-- write(L, now, right, 12);
write(L, t_nsec, right, 8);
write(L,'.');
write(L, t_dnsec, right, 1);
write(L, string'(" ns"));
write(L, to_integer(unsigned(clkcyc)), right, 7);
if str /= null_string then
write(L, str);
end if;
end procedure writetimestamp;
end package body simlib;
| gpl-2.0 |
xylnao/w11a-extra | rtl/ibus/ib_sres_or_3.vhd | 2 | 2609 | -- $Id: ib_sres_or_3.vhd 335 2010-10-24 22:24:23Z mueller $
--
-- Copyright 2007-2010 by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: ib_sres_or_3 - syn
-- Description: ibus: result or, 3 input
--
-- Dependencies: -
-- Test bench: tb/tb_pdp11_core (implicit)
-- Target Devices: generic
-- Tool versions: xst 8.1, 8.2, 9.1, 9.2, 12.1; ghdl 0.18-0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2010-10-23 335 1.1 add ib_sres_or_mon
-- 2008-08-22 161 1.0.2 renamed pdp11_ibres_ -> ib_sres_; use iblib
-- 2008-01-05 110 1.0.1 rename IB_MREQ(ena->req) SRES(sel->ack, hold->busy)
-- 2007-12-29 107 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
use work.iblib.all;
-- ----------------------------------------------------------------------------
entity ib_sres_or_3 is -- ibus result or, 3 input
port (
IB_SRES_1 : in ib_sres_type; -- ib_sres input 1
IB_SRES_2 : in ib_sres_type := ib_sres_init; -- ib_sres input 2
IB_SRES_3 : in ib_sres_type := ib_sres_init; -- ib_sres input 3
IB_SRES_OR : out ib_sres_type -- ib_sres or'ed output
);
end ib_sres_or_3;
architecture syn of ib_sres_or_3 is
begin
proc_comb : process (IB_SRES_1, IB_SRES_2, IB_SRES_3)
begin
IB_SRES_OR.ack <= IB_SRES_1.ack or
IB_SRES_2.ack or
IB_SRES_3.ack;
IB_SRES_OR.busy <= IB_SRES_1.busy or
IB_SRES_2.busy or
IB_SRES_3.busy;
IB_SRES_OR.dout <= IB_SRES_1.dout or
IB_SRES_2.dout or
IB_SRES_3.dout;
end process proc_comb;
-- synthesis translate_off
ORMON : ib_sres_or_mon
port map (
IB_SRES_1 => IB_SRES_1,
IB_SRES_2 => IB_SRES_2,
IB_SRES_3 => IB_SRES_3,
IB_SRES_4 => ib_sres_init
);
-- synthesis translate_on
end syn;
| gpl-2.0 |
vhavlena/appreal | netbench/pattern_match/vhdl/memory.vhd | 1 | 1222 | library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_unsigned.all;
use IEEE.std_logic_arith.all;
-- pragma translate_off
library unisim;
use unisim.vcomponents.all;
-- pragma translate_on
-- ----------------------------------------------------------------------------
-- Entity declaration
-- ----------------------------------------------------------------------------
entity DFSM_MEMORY%$% is
generic(
MEMORY_TARGET_WIDTH : integer := %$%;
MEMORY_SYMBOL_WIDTH : integer := %$%;
MEMORY_ADDR_WIDTH : integer := %$%
);
port(
-- common signals
CLK : in std_logic;
RESET : in std_logic;
-- memory interface
MEMORY_ADDR : in std_logic_vector(MEMORY_ADDR_WIDTH - 1 downto 0);
MEMORY_RQ : in std_logic;
TARGET : out std_logic_vector(MEMORY_TARGET_WIDTH - 1 downto 0);
SYMBOL : out std_logic_vector(MEMORY_SYMBOL_WIDTH - 1 downto 0);
N : out std_logic;
F : out std_logic;
V : out std_logic
);
end entity DFSM_MEMORY%$%;
architecture full of DFSM_MEMORY%$% is
%$%
begin
%$%
end architecture full; | gpl-2.0 |
xylnao/w11a-extra | rtl/sys_gen/tst_serloop/nexys2/sys_conf2.vhd | 2 | 1562 | -- $Id: sys_conf2.vhd 441 2011-12-20 17:01:16Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Package Name: sys_conf
-- Description: Definitions for sys_tst_serloop2_n2 (for synthesis)
--
-- Dependencies: -
-- Tool versions: xst 13.1; ghdl 0.29
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-13 424 1.0 Initial version
-- 2011-10-25 419 0.5 First draft
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use work.slvtypes.all;
package sys_conf is
constant sys_conf_clkudiv_usecdiv : integer := 100; -- default usec
constant sys_conf_clksdiv_usecdiv : integer := 60; -- default usec
constant sys_conf_clkdiv_msecdiv : integer := 1000; -- default msec
constant sys_conf_hio_debounce : boolean := true; -- instantiate debouncers
constant sys_conf_uart_cdinit : integer := 521-1; -- 60000000/115200
end package sys_conf;
| gpl-2.0 |
xylnao/w11a-extra | rtl/vlib/simlib/simclkcnt.vhd | 1 | 1730 | -- $Id: simclkcnt.vhd 423 2011-11-12 22:22:25Z mueller $
--
-- Copyright 2011- by Walter F.J. Mueller <[email protected]>
--
-- This program is free software; you may redistribute and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation, either version 2, or at your option any later version.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for complete details.
--
------------------------------------------------------------------------------
-- Module Name: simclkcnt - sim
-- Description: test bench system clock cycle counter
--
-- Dependencies: -
-- Test bench: -
-- Target Devices: generic
-- Tool versions: xst 12.1, 13.1; ghdl 0.29
--
-- Revision History:
-- Date Rev Version Comment
-- 2011-11-12 423 1.0.1 now numeric_std clean
-- 2010-11-13 72 1.0 Initial version
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.slvtypes.all;
entity simclkcnt is -- test bench system clock cycle counter
port (
CLK : in slbit; -- clock
CLK_CYCLE : out slv31 -- clock cycle number
);
end entity simclkcnt;
architecture sim of simclkcnt is
signal R_CLKCNT : slv31 := (others=>'0');
begin
proc_clk: process (CLK)
begin
if rising_edge(CLK) then
R_CLKCNT <= slv(unsigned(R_CLKCNT) + 1);
end if;
end process proc_clk;
CLK_CYCLE <= R_CLKCNT;
end sim;
| gpl-2.0 |
a4a881d4/zcpsm | src/example/eth_hub/vhd/config/Eth_TestSig_Cfg.vhd | 1 | 202 | library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
package Eth_TestSig_Cfg is
signal g_Test_EthRec_CRCFlag : std_logic; -- ethrx_input; DFE_TR
end package;
| gpl-2.0 |
guilhermekrz/Pipeline-Processor | HW_Src/sevenSegment4.vhd | 1 | 5370 | library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity sevenSegment4 is
port (
sevenSegmentVector4 : OUT std_logic_vector(27 downto 0);
numberDesired4 : IN std_logic_vector(15 downto 0);
clock, reset : IN std_logic );
end sevenSegment4;
architecture behavior of sevenSegment4 is
begin
process (clock,numberDesired4)
BEGIN
if (clock'event and clock='1') then
case numberDesired4 (3 downto 0) is
when "0000"=> sevenSegmentVector4 (6 downto 0) <="0000001";--0
when "0001"=> sevenSegmentVector4 (6 downto 0) <="1001111";--1
when "0010"=> sevenSegmentVector4 (6 downto 0) <="0010010";--2
when "0011"=> sevenSegmentVector4 (6 downto 0) <="0000110";--3
when "0100"=> sevenSegmentVector4 (6 downto 0) <="1001100";--4
when "0101"=> sevenSegmentVector4 (6 downto 0) <="0100100";--5
when "0110"=> sevenSegmentVector4 (6 downto 0) <="0100000";--6
when "0111"=> sevenSegmentVector4 (6 downto 0) <="0001111";--7
when "1000"=> sevenSegmentVector4 (6 downto 0) <="0000000";--8
when "1001"=> sevenSegmentVector4 (6 downto 0) <="0000100";--9
when "1010"=> sevenSegmentVector4 (6 downto 0) <="0001000";--A
when "1011"=> sevenSegmentVector4 (6 downto 0) <="1100000";--b
when "1100"=> sevenSegmentVector4 (6 downto 0) <="0110001";--C
when "1101"=> sevenSegmentVector4 (6 downto 0) <="1000010";--d
when "1110"=> sevenSegmentVector4 (6 downto 0) <="0110000";--E
when "1111"=> sevenSegmentVector4 (6 downto 0) <="0111000";--F
when others=> sevenSegmentVector4 (6 downto 0) <="1111111";--' '
end case;
case numberDesired4 (7 downto 4) is
when "0000"=> sevenSegmentVector4 (13 downto 7) <="0000001";--0
when "0001"=> sevenSegmentVector4 (13 downto 7) <="1001111";--1
when "0010"=> sevenSegmentVector4 (13 downto 7) <="0010010";--2
when "0011"=> sevenSegmentVector4 (13 downto 7) <="0000110";--3
when "0100"=> sevenSegmentVector4 (13 downto 7) <="1001100";--4
when "0101"=> sevenSegmentVector4 (13 downto 7) <="0100100";--5
when "0110"=> sevenSegmentVector4 (13 downto 7) <="0100000";--6
when "0111"=> sevenSegmentVector4 (13 downto 7) <="0001111";--7
when "1000"=> sevenSegmentVector4 (13 downto 7) <="0000000";--8
when "1001"=> sevenSegmentVector4 (13 downto 7) <="0000100";--9
when "1010"=> sevenSegmentVector4 (13 downto 7) <="0001000";--A
when "1011"=> sevenSegmentVector4 (13 downto 7) <="1100000";--b
when "1100"=> sevenSegmentVector4 (13 downto 7) <="0110001";--C
when "1101"=> sevenSegmentVector4 (13 downto 7) <="1000010";--d
when "1110"=> sevenSegmentVector4 (13 downto 7) <="0110000";--E
when "1111"=> sevenSegmentVector4 (13 downto 7) <="0111000";--F
when others=> sevenSegmentVector4 (13 downto 7) <="1111111";--' '
end case;
case numberDesired4 (11 downto 8) is
when "0000"=> sevenSegmentVector4 (20 downto 14) <="0000001";--0
when "0001"=> sevenSegmentVector4 (20 downto 14) <="1001111";--1
when "0010"=> sevenSegmentVector4 (20 downto 14) <="0010010";--2
when "0011"=> sevenSegmentVector4 (20 downto 14) <="0000110";--3
when "0100"=> sevenSegmentVector4 (20 downto 14) <="1001100";--4
when "0101"=> sevenSegmentVector4 (20 downto 14) <="0100100";--5
when "0110"=> sevenSegmentVector4 (20 downto 14) <="0100000";--6
when "0111"=> sevenSegmentVector4 (20 downto 14) <="0001111";--7
when "1000"=> sevenSegmentVector4 (20 downto 14) <="0000000";--8
when "1001"=> sevenSegmentVector4 (20 downto 14) <="0000100";--9
when "1010"=> sevenSegmentVector4 (20 downto 14) <="0001000";--A
when "1011"=> sevenSegmentVector4 (20 downto 14) <="1100000";--b
when "1100"=> sevenSegmentVector4 (20 downto 14) <="0110001";--C
when "1101"=> sevenSegmentVector4 (20 downto 14) <="1000010";--d
when "1110"=> sevenSegmentVector4 (20 downto 14) <="0110000";--E
when "1111"=> sevenSegmentVector4 (20 downto 14) <="0111000";--F
when others=> sevenSegmentVector4 (20 downto 14) <="1111111";--' '
end case;
case numberDesired4 (15 downto 12) is
when "0000"=> sevenSegmentVector4 (27 downto 21) <="0000001";--0
when "0001"=> sevenSegmentVector4 (27 downto 21) <="1001111";--1
when "0010"=> sevenSegmentVector4 (27 downto 21) <="0010010";--2
when "0011"=> sevenSegmentVector4 (27 downto 21) <="0000110";--3
when "0100"=> sevenSegmentVector4 (27 downto 21) <="1001100";--4
when "0101"=> sevenSegmentVector4 (27 downto 21) <="0100100";--5
when "0110"=> sevenSegmentVector4 (27 downto 21) <="0100000";--6
when "0111"=> sevenSegmentVector4 (27 downto 21) <="0001111";--7
when "1000"=> sevenSegmentVector4 (27 downto 21) <="0000000";--8
when "1001"=> sevenSegmentVector4 (27 downto 21) <="0000100";--9
when "1010"=> sevenSegmentVector4 (27 downto 21) <="0001000";--A
when "1011"=> sevenSegmentVector4 (27 downto 21) <="1100000";--b
when "1100"=> sevenSegmentVector4 (27 downto 21) <="0110001";--C
when "1101"=> sevenSegmentVector4 (27 downto 21) <="1000010";--d
when "1110"=> sevenSegmentVector4 (27 downto 21) <="0110000";--E
when "1111"=> sevenSegmentVector4 (27 downto 21) <="0111000";--F
when others=> sevenSegmentVector4 (27 downto 21) <="1111111";--' '
end case;
end if;
end process;
end behavior; | gpl-2.0 |
1995parham/Learning | vhdl/d-latch/d-latch_t.vhd | 1 | 630 | --------------------------------------------------------------------------------
-- Author: Parham Alvani ([email protected])
--
-- Create Date: 12-02-2016
-- Module Name: sr-latch_t.vhd
--------------------------------------------------------------------------------
library IEEE;
use IEEE.std_logic_1164.all;
entity d_latch_t is
end entity;
architecture arch_d_latch_t of d_latch_t is
signal d, clk, q, q_not : std_logic := '0';
begin
d_latch_1 : entity work.d_latch(beh_arch_d_latch) port map(d, clk, q, q_not);
d <= '1', '0' after 5 ns, '0' after 10 ns, '1' after 15 ns;
end architecture arch_d_latch_t;
| gpl-2.0 |
1995parham/Learning | vhdl/fulladdr/halfaddr.vhd | 1 | 542 | --------------------------------------------------------------------------------
-- Author: Parham Alvani ([email protected])
--
-- Create Date: 08-02-2016
-- Module Name: halfaddr.vhd
--------------------------------------------------------------------------------
library IEEE;
use IEEE.std_logic_1164.all;
entity halfaddr is
port(a, b : in std_logic;
sum, c_out : out std_logic);
end entity halfaddr;
architecture arch_halfaddr of halfaddr is
begin
sum <= a xor b;
c_out <= a and b;
end architecture arch_halfaddr;
| gpl-2.0 |
a4a881d4/zcpsm | src/example/eth_hub/vhd/macAddress/macAddrConfig.vhd | 1 | 2474 | library ieee;
use ieee.std_logic_1164.all;
use work.eth_config.all;
entity macAddrConfig is
port (
ethtx_port_id : in std_logic_vector(7 downto 0);
ethrx_port_id : in std_logic_vector(7 downto 0);
db_port_id : in std_logic_vector(7 downto 0);
local_id_MAC0_Req : in std_logic_vector(7 downto 0);
local_id_MAC0_A : in std_logic_vector(7 downto 0);
local_id_MAC0_B : in std_logic_vector(7 downto 0);
local_id : in std_logic_vector(39 downto 0);
ethtx_in_port : out std_logic_vector(7 downto 0);
ethrx_in_port : out std_logic_vector(7 downto 0);
db_in_port : out std_logic_vector(7 downto 0)
);
end macAddrConfig;
architecture behave of macAddrConfig is
begin
ethtx_in_port <= local_id_MAC0_Req when ethtx_port_id = PORT_ETH_LOCAL_ID_0_REQ else
local_id_MAC0_A when ethtx_port_id = PORT_ETH_LOCAL_ID_0_A else
local_id_MAC0_B when ethtx_port_id = PORT_ETH_LOCAL_ID_0_B else
local_id( 39 downto 32 ) when ethtx_port_id = PORT_ETH_LOCAL_ID_1 else
local_id( 31 downto 24 ) when ethtx_port_id = PORT_ETH_LOCAL_ID_2 else
local_id( 23 downto 16 ) when ethtx_port_id = PORT_ETH_LOCAL_ID_3 else
local_id( 15 downto 8 ) when ethtx_port_id = PORT_ETH_LOCAL_ID_4 else
local_id( 7 downto 0 ) when ethtx_port_id = PORT_ETH_LOCAL_ID_5 else
(others => 'Z');
ethrx_in_port <= local_id_MAC0_A when ethrx_port_id = PORT_ETH_LOCAL_ID_0_A else
local_id_MAC0_B when ethrx_port_id = PORT_ETH_LOCAL_ID_0_B else
local_id( 39 downto 32 ) when ethrx_port_id = PORT_ETH_LOCAL_ID_1 else
local_id( 31 downto 24 ) when ethrx_port_id = PORT_ETH_LOCAL_ID_2 else
local_id( 23 downto 16 ) when ethrx_port_id = PORT_ETH_LOCAL_ID_3 else
local_id( 15 downto 8 ) when ethrx_port_id = PORT_ETH_LOCAL_ID_4 else
local_id( 7 downto 0 ) when ethrx_port_id = PORT_ETH_LOCAL_ID_5 else
(others => 'Z');
db_in_port <= local_id_MAC0_A when db_port_id = PORT_DB_LOCAL_ID_0_A else
local_id_MAC0_B when db_port_id = PORT_DB_LOCAL_ID_0_B else
local_id( 39 downto 32 ) when db_port_id = PORT_DB_LOCAL_ID_1 else
local_id( 31 downto 24 ) when db_port_id = PORT_DB_LOCAL_ID_2 else
local_id( 23 downto 16 ) when db_port_id = PORT_DB_LOCAL_ID_3 else
local_id( 15 downto 8 ) when db_port_id = PORT_DB_LOCAL_ID_4 else
local_id( 7 downto 0 ) when db_port_id = PORT_DB_LOCAL_ID_5 else
(others => 'Z');
end behave;
| gpl-2.0 |
paulprozesky/shiny-octo-wookie | mkat/pfb_bb/pfb_core_snbxfft.vhd | 1 | 569 | library IEEE;
use IEEE.std_logic_1164.all;
entity pfb_core_snbxfft is
port (
ce_1: in std_logic;
clk_1: in std_logic;
en_in: in std_logic;
pol0_in: in std_logic_vector(35 downto 0);
pol1_in: in std_logic_vector(35 downto 0);
sync_in: in std_logic;
en_out: out std_logic;
pol0_out: out std_logic_vector(35 downto 0);
pol1_out: out std_logic_vector(35 downto 0);
specsync_out: out std_logic;
sync_out: out std_logic
);
end pfb_core_snbxfft;
architecture structural of pfb_core_snbxfft is
begin
end structural;
| gpl-2.0 |
paulprozesky/shiny-octo-wookie | mkat/pfb_bb/pfb_core.vhd | 1 | 609 | library IEEE;
use IEEE.std_logic_1164.all;
entity pfb_core is
port (
ce_1: in std_logic;
clk_1: in std_logic;
en_in: in std_logic;
pol0_in: in std_logic_vector(79 downto 0);
pol1_in: in std_logic_vector(79 downto 0);
shift_in: in std_logic_vector(31 downto 0);
sync_in: in std_logic;
en_out: out std_logic;
of_out: out std_logic_vector(1 downto 0);
pol0_out: out std_logic_vector(143 downto 0);
pol1_out: out std_logic_vector(143 downto 0);
sync_out: out std_logic
);
end pfb_core;
architecture structural of pfb_core is
begin
end structural;
| gpl-2.0 |
kristapsdreija/IGLOO_NANO_FPGA_VGA_Generator_Libero_SoC | IGLOO_Updated_VGA/hdl/my.vhd | 1 | 3927 | --------------------------------------------------------------------------------
-- Company: <Name>
--
-- File: my.vhd
-- File history:
-- <Revision number>: <Date>: <Comments>
-- <Revision number>: <Date>: <Comments>
-- <Revision number>: <Date>: <Comments>
--
-- Description:
--
-- Proceduuras dazhaadu figuuru ziimeeshanai uz ekraana.
--
-- Targeted device: <Family::IGLOO> <Die::AGLN250V2Z> <Package::100 VQFP>
-- Author: <Name>
--
--------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
--h_pulse : INTEGER := 96; --horiztonal sync pulse width in pixels 800 un 525
--h_bp : INTEGER := 48; --horiztonal back porch width in pixels
--h_pixels : INTEGER := 640; --horiztonal display width in pixels
--h_fp : INTEGER := 16; --horiztonal front porch width in pixels
--v_pulse : INTEGER := 2; --vertical sync pulse width in rows
--v_bp : INTEGER := 33; --vertical back porch width in rows
--v_pixels : INTEGER := 480; --vertical display width in rows
--v_fp : INTEGER := 10 --vertical front porch width in rows
--h_pulse : INTEGER := 112; --horiztonal sync pulse width in pixels 1688 un 1066
--h_bp : INTEGER := 248; --horiztonal back porch width in pixels
--h_pixels : INTEGER := 1280; --horiztonal display width in pixels
--h_fp : INTEGER := 48; --horiztonal front porch width in pixels
--v_pulse : INTEGER := 3; --vertical sync pulse width in rows
--v_bp : INTEGER := 38; --vertical back porch width in rows
--v_pixels : INTEGER := 1024; --vertical display width in rows
--v_fp : INTEGER := 1 --vertical front porch width in rows
--h_pulse : INTEGER := 128; --horiztonal sync pulse width in pixels 1056 un 628
--h_bp : INTEGER := 88; --horiztonal back porch width in pixels
--h_pixels : INTEGER := 800; --horiztonal display width in pixels
--h_fp : INTEGER := 40; --horiztonal front porch width in pixels
--v_pulse : INTEGER := 4; --vertical sync pulse width in rows
--v_bp : INTEGER := 23; --vertical back porch width in rows
--v_pixels : INTEGER := 600; --vertical display width in rows
--v_fp : INTEGER := 1 --vertical front porch width in rows
PACKAGE MY IS
---------------------------------------------------------
-- Procedura sanjem pashreizejas koordinatas ekrana un --
-- ari koordinatu, no kuras sakt zimet kvadratu. --
-- Procedura atgriez RGB signalu un DRAW indikatoru, --
-- kursh pasaka, vai tiek zimets vai ne. --
---------------------------------------------------------
PROCEDURE SQ(
SIGNAL Xcur : IN INTEGER RANGE 0 TO 1688;
SIGNAL Ycur : IN INTEGER RANGE 0 TO 1066;
SIGNAL Xpos : IN INTEGER RANGE 0 TO 1688;
SIGNAL Ypos : IN INTEGER RANGE 0 TO 1688;
SIGNAL RGB : OUT STD_LOGIC;
SIGNAL DRAW : OUT STD_LOGIC
);
END MY;
PACKAGE BODY MY IS
PROCEDURE SQ(
SIGNAL Xcur : IN INTEGER RANGE 0 TO 1688;
SIGNAL Ycur : IN INTEGER RANGE 0 TO 1066;
SIGNAL Xpos : IN INTEGER RANGE 0 TO 1688;
SIGNAL Ypos : IN INTEGER RANGE 0 TO 1688;
SIGNAL RGB : OUT STD_LOGIC;
SIGNAL DRAW : OUT STD_LOGIC
) IS
BEGIN
IF(Xcur>Xpos AND Xcur<(Xpos+100) AND Ycur>Ypos AND Ycur<(Ypos+100))THEN -- 100x100 pikselu kvadrats.
RGB<='1';
DRAW<='1';
ELSE
DRAW<='0';
END IF;
END SQ;
END MY; | gpl-2.0 |
vscosta/doxygen-yap | examples/mux.vhdl | 37 | 860 | -------------------------------------------------------
--! @file
--! @brief 2:1 Mux using with-select
-------------------------------------------------------
--! Use standard library
library ieee;
--! Use logic elements
use ieee.std_logic_1164.all;
--! Mux entity brief description
--! Detailed description of this
--! mux design element.
entity mux_using_with is
port (
din_0 : in std_logic; --! Mux first input
din_1 : in std_logic; --! Mux Second input
sel : in std_logic; --! Select input
mux_out : out std_logic --! Mux output
);
end entity;
--! @brief Architecture definition of the MUX
--! @details More details about this mux element.
architecture behavior of mux_using_with is
begin
with (sel) select
mux_out <= din_0 when '0',
din_1 when others;
end architecture;
| gpl-2.0 |
gyurco/ZX_Spectrum-128K_MIST | sp0256.vhd | 1 | 13381 | ---------------------------------------------------------------------------------
-- sp0256 by Dar ([email protected]) (14/04/2018)
-- http://darfpga.blogspot.fr
---------------------------------------------------------------------------------
-- Educational use only
-- Do not redistribute synthetized file with roms
-- Do not redistribute roms whatever the form
-- Use at your own risk
---------------------------------------------------------------------------------
--
-- SP0256-al2 prom decoding scheme and speech synthesis algorithm are from :
--
-- Copyright Joseph Zbiciak, all rights reserved.
-- Copyright tim lindner, all rights reserved.
--
-- See C source code and license in sp0256.c from MAME source
--
-- VHDL code is by Dar.
--
---------------------------------------------------------------------------------
--
-- One allophone is made of N parts (called here after lines), each part has a
-- 16 bytes descriptor. One descriptor (for one part) contains one repeat value
-- one amplitude value, one period value and 2x6 filtering coefficients.
--
-- for line_cnt from 0 to nb_line-1 (part)
-- for line_rpt from 0 to line_rpt-1 (repeat)
-- for per_cnt from 0 to line_per-1 (period)
-- produce 1 sample
--
-- One sample is the output of the 6 stages filter. Each filter stage is fed by
-- the output of the previous stage, the first stage is fed by the source sample
--
-- when line_per != 0 source sample is set to amplitude value only once at the
-- begin of each repeat (per_cnt==0) then source sample is set to 0
--
-- when line_per == 0 source sample is set to amplitude value only at the begin
-- of each repeat (per_cnt==0) then source sample sign is toggled (+/-) when then
-- random noise generator lsb equal 1. In that case actual line_per is set to 64
--
--
-- Sound sample frequency is 10kHz. I make a 25 stages linear state machine
-- running at 250kHz that produce one sound sample per cycle.
--
-- As long as one allophones is available the state machine runs permanently and
-- there is zero latency between allophones.
--
-- During one (each) cycle the state machine:
--
-- - fetch new allophone or go on with current one if not finished
-- - get allophone first line descriptor address from rom entry table
-- - get allophone nb_line from rom entry table and jump to first line address
-- - get allophone line_rpt from rom current line descriptor
-- - get allophone amplitude from rom current line descriptor
-- manage source amplitude, reset filter if needed
-- - get allophone line_per from rom current line descriptor
-- - address filter coefficients F/B within rom current line descriptor,
-- feed filter input, update filter state with computation output
-- - rescale last filter stage output to audio output
-- - manage per_cnt, rpt_cnt, line_cnt and random noise generator
--
-- Filter computation:
--
-- Filter coefficients F or B index is get from rom current line descriptor
-- (address managed by state machine), value is converted thru coeff_array
-- table. Coefficient index has a sign bit to be managed:
--
-- if index sign bit = 0, filter coefficient <= -coeff_array(index)
-- if index sign bit = 1, filter coefficient <= coeff_array(-index)
--
-- During one state machine cycle each filter is updated once.
-- One filter update require two state machine steps:
--
-- step 1
-- sum_in1 <= filter input
-- sum_in2 <= filter coefficient F * filter state z1 / 256
-- sum_out <= sum_in1 + sum_in2
-- step 2
-- sum_in1 <= sum_out
-- sum_in2 <= filter coefficient B * filter state z2 / 512
-- sum_out <= sum_in1 + sum_in2
-- filter state z1 <= sum_in1 + sum_in2
-- filter state z2 <= filter state z1
--
-- (sum_out will be limited to -32768/+32767)
--
-- Audio output scaling to 10bits unsigned:
--
-- what :
-- Last filter output is limited to -8192/+8191
-- Then divided by 16 => -512/+511
-- Then offset by 512 => 0/1023
--
-- how:
-- if X > 8191, Y <= 1023
-- elsif X < -8192, Y <= 0
-- else Y <= (X/16)+512
--
---------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.ALL;
use ieee.std_logic_unsigned.all;
use ieee.numeric_std.all;
entity sp0256 is
port
(
clock : in std_logic;
clock_250k_en : in std_logic;
reset : in std_logic;
input_rdy : out std_logic;
allophone : in std_logic_vector(5 downto 0);
trig_allophone : in std_logic;
audio_out : out std_logic_vector(9 downto 0)
);
end sp0256;
architecture syn of sp0256 is
signal clock_n : std_logic;
signal rom_addr : std_logic_vector(11 downto 0);
signal rom_do : std_logic_vector( 7 downto 0);
signal stage : integer range 0 to 24; -- stage counter 0-24;
signal allophone_latch : std_logic_vector(5 downto 0);
signal allo_entry : std_logic_vector(7 downto 0);
signal allo_addr_lsb, allo_addr_msb : std_logic_vector(7 downto 0);
signal allo_nb_line : std_logic_vector(7 downto 0);
signal line_rpt, line_per : std_logic_vector(7 downto 0);
signal line_amp_lsb, line_amp_msb : std_logic_vector(7 downto 0);
signal amp, filter, coeff : signed(15 downto 0);
signal sum_in2 : signed(31 downto 0);
signal sum_in1,sum_out_ul : signed(15 downto 0);
signal sum_out : signed(15 downto 0);
signal divider : std_logic;
signal audio : signed(15 downto 0);
signal is_noise : std_logic;
signal noise_rng : std_logic_vector(15 downto 0) := X"0001";
signal f0_z1,f0_z2 : signed(15 downto 0);
signal f1_z1,f1_z2 : signed(15 downto 0);
signal f2_z1,f2_z2 : signed(15 downto 0);
signal f3_z1,f3_z2 : signed(15 downto 0);
signal f4_z1,f4_z2 : signed(15 downto 0);
signal f5_z1,f5_z2 : signed(15 downto 0);
signal input_rdy_in : std_logic;
signal sound_on : std_logic := '0';
signal trig_allophone_r : std_logic;
signal line_cnt, rpt_cnt, per_cnt : std_logic_vector(7 downto 0);
signal coeff_idx : std_logic_vector(6 downto 0);
type coeff_array_t is array(0 to 127) of integer range 0 to 511;
signal coeff_array : coeff_array_t := (
0, 9, 17, 25, 33, 41, 49, 57,
65, 73, 81, 89, 97, 105, 113, 121,
129, 137, 145, 153, 161, 169, 177, 185,
193, 201, 209, 217, 225, 233, 241, 249,
257, 265, 273, 281, 289, 297, 301, 305,
309, 313, 317, 321, 325, 329, 333, 337,
341, 345, 349, 353, 357, 361, 365, 369,
373, 377, 381, 385, 389, 393, 397, 401,
405, 409, 413, 417, 421, 425, 427, 429,
431, 433, 435, 437, 439, 441, 443, 445,
447, 449, 451, 453, 455, 457, 459, 461,
463, 465, 467, 469, 471, 473, 475, 477,
479, 481, 482, 483, 484, 485, 486, 487,
488, 489, 490, 491, 492, 493, 494, 495,
496, 497, 498, 499, 500, 501, 502, 503,
504, 505, 506, 507, 508, 509, 510, 511);
begin
input_rdy <= input_rdy_in;
-- stage counter : Fs=250k/25 = 10kHz
process (clock, reset)
begin
if reset='1' then
stage <= 0;
elsif rising_edge(clock) then
if clock_250k_en = '1' then
if stage >= 24 then
stage <= 0;
else
stage <= stage + 1;
end if;
end if;
end if;
end process;
process (clock, reset)
begin
if reset='1' then
input_rdy_in <= '1';
sound_on <= '0';
noise_rng <= X"0001";
elsif rising_edge(clock) then
trig_allophone_r <= trig_allophone;
if trig_allophone = '1' and trig_allophone_r = '0' then
input_rdy_in <= '0';
allophone_latch <= allophone;
end if;
if clock_250k_en = '1' then
if sound_on = '0' then
if stage = 0 and input_rdy_in = '0' then
allo_entry <= allophone_latch*"11";
rom_addr <= X"0"&(allophone_latch*"11");
line_cnt <= (others => '0');
rpt_cnt <= (others => '0');
per_cnt <= (others => '0');
sound_on <= '1';
input_rdy_in <= '1';
end if;
else -- sound is on
case stage is
when 0 =>
rom_addr <= X"0"&allo_entry;
when 1 =>
allo_addr_msb <= rom_do;
rom_addr <= rom_addr + '1';
when 2 =>
allo_addr_lsb <= rom_do;
rom_addr <= rom_addr + '1';
when 3 =>
allo_nb_line <= rom_do - '1';
rom_addr <= (allo_addr_lsb +line_cnt) & X"0";
when 4 =>
line_rpt <= rom_do - '1';
rom_addr <= rom_addr + '1';
when 5 =>
line_amp_msb <= rom_do;
rom_addr <= rom_addr + '1';
when 6 =>
if per_cnt = X"00" then
amp <= signed(line_amp_msb & rom_do);
else
if is_noise = '1' then
if noise_rng(0) = '1' then
amp <= -amp;
end if;
else
amp <= (others => '0');
end if;
end if;
if per_cnt = X"00"then
f0_z1 <= (others => '0'); f0_z2 <= (others => '0');
f1_z1 <= (others => '0'); f1_z2 <= (others => '0');
f2_z1 <= (others => '0'); f2_z2 <= (others => '0');
f3_z1 <= (others => '0'); f3_z2 <= (others => '0');
f4_z1 <= (others => '0'); f4_z2 <= (others => '0');
f5_z1 <= (others => '0'); f5_z2 <= (others => '0');
end if;
rom_addr <= rom_addr + '1';
when 7 =>
if rom_do = X"00" then
line_per <= X"40";
is_noise <= '1';
else
line_per <= rom_do - '1';
is_noise <= '0';
end if;
sum_in1 <= amp;
filter <= f0_z1;
divider <= '0';
rom_addr <= rom_addr + '1';
when 8 =>
sum_in1 <= sum_out;
filter <= f0_z2;
divider <= '1';
rom_addr <= rom_addr + '1';
when 9 =>
f0_z1 <= sum_out;
f0_z2 <= f0_z1;
sum_in1 <= sum_out;
filter <= f1_z1;
divider <= '0';
rom_addr <= rom_addr + '1';
when 10 =>
sum_in1 <= sum_out;
filter <= f1_z2;
divider <= '1';
rom_addr <= rom_addr + '1';
when 11 =>
f1_z1 <= sum_out;
f1_z2 <= f1_z1;
sum_in1 <= sum_out;
filter <= f2_z1;
divider <= '0';
rom_addr <= rom_addr + '1';
when 12 =>
sum_in1 <= sum_out;
filter <= f2_z2;
divider <= '1';
rom_addr <= rom_addr + '1';
when 13 =>
f2_z1 <= sum_out;
f2_z2 <= f2_z1;
sum_in1 <= sum_out;
filter <= f3_z1;
divider <= '0';
rom_addr <= rom_addr + '1';
when 14 =>
sum_in1 <= sum_out;
filter <= f3_z2;
divider <= '1';
rom_addr <= rom_addr + '1';
when 15 =>
f3_z1 <= sum_out;
f3_z2 <= f3_z1;
sum_in1 <= sum_out;
filter <= f4_z1;
divider <= '0';
rom_addr <= rom_addr + '1';
when 16 =>
sum_in1 <= sum_out;
filter <= f4_z2;
divider <= '1';
rom_addr <= rom_addr + '1';
when 17 =>
f4_z1 <= sum_out;
f4_z2 <= f4_z1;
sum_in1 <= sum_out;
filter <= f5_z1;
divider <= '0';
rom_addr <= rom_addr + '1';
when 18 =>
sum_in1 <= sum_out;
filter <= f5_z2;
divider <= '1';
rom_addr <= rom_addr + '1';
when 19 =>
f5_z1 <= sum_out;
f5_z2 <= f5_z1;
if sum_out > 510*16 then
audio <= to_signed(1023,16);
elsif sum_out < -510*16 then
audio <= to_signed(0,16);
else
audio <= (sum_out/16)+X"0200";
end if;
when 20 =>
if per_cnt >= line_per then
per_cnt <= (others => '0');
if rpt_cnt >= line_rpt then
rpt_cnt <= (others => '0');
if line_cnt >= allo_nb_line then
line_cnt <= (others => '0');
sound_on <= '0';
else
line_cnt <= line_cnt + '1';
end if;
is_noise <= '0';
else
rpt_cnt <= rpt_cnt + '1';
end if;
else
per_cnt <= per_cnt + '1';
end if;
if noise_rng(0) = '1' then
noise_rng <= ('0' & noise_rng(15 downto 1) ) xor X"4001";
else
noise_rng <= '0' & noise_rng(15 downto 1);
end if;
when others => null;
end case;
end if;
end if;
end if;
end process;
audio_out <= std_logic_vector(unsigned(audio(9 downto 0)));
-- filter computation
coeff_idx <= rom_do(6 downto 0) when rom_do(7)='0' else
not(rom_do(6 downto 0)) + '1';
coeff <= -to_signed(coeff_array(to_integer(unsigned(coeff_idx))),16) when rom_do(7)='0' else
to_signed(coeff_array(to_integer(unsigned(coeff_idx))),16);
sum_in2 <= (filter * coeff) / 256 when divider = '0' else
(filter * coeff) / 512 ;
sum_out_ul <= sum_in1 + sum_in2(15 downto 0);
sum_out <= to_signed( 32767,16) when sum_out_ul > 32767 else
to_signed(-32768,16) when sum_out_ul < -32768 else
sum_out_ul;
-- sp0256-al2 prom (decoded)
sp0256_al2_decoded : entity work.sp0256_al2_decoded
port map(
clk => clock,
addr => rom_addr,
data => rom_do
);
end syn;
| gpl-2.0 |
vad-rulezz/megabot | fusesoc/orpsoc-cores/trunk/systems/neek/backend/rtl/verilog/ddr_ctrl_ip/ddr_ctrl_ip_phy_alt_mem_phy_seq.vhd | 4 | 648170 | --
-- -----------------------------------------------------------------------------
-- Abstract : constants package for the non-levelling AFI PHY sequencer
-- The constant package (alt_mem_phy_constants_pkg) contains global
-- 'constants' which are fixed thoughout the sequencer and will not
-- change (for constants which may change between sequencer
-- instances generics are used)
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
--
package ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg is
-- -------------------------------
-- Register number definitions
-- -------------------------------
constant c_max_mode_reg_index : natural := 13; -- number of MR bits..
-- Top bit of vector (i.e. width -1) used for address decoding :
constant c_debug_reg_addr_top : natural := 3;
constant c_mmi_access_codeword : std_logic_vector(31 downto 0) := X"00D0_0DEB"; -- to check for legal Avalon interface accesses
-- Register addresses.
constant c_regofst_cal_status : natural := 0;
constant c_regofst_debug_access : natural := 1;
constant c_regofst_hl_css : natural := 2;
constant c_regofst_mr_register_a : natural := 5;
constant c_regofst_mr_register_b : natural := 6;
constant c_regofst_codvw_status : natural := 12;
constant c_regofst_if_param : natural := 13;
constant c_regofst_if_test : natural := 14; -- pll_phs_shft, ac_1t, extra stuff
constant c_regofst_test_status : natural := 15;
constant c_hl_css_reg_cal_dis_bit : natural := 0;
constant c_hl_css_reg_phy_initialise_dis_bit : natural := 1;
constant c_hl_css_reg_init_dram_dis_bit : natural := 2;
constant c_hl_css_reg_write_ihi_dis_bit : natural := 3;
constant c_hl_css_reg_write_btp_dis_bit : natural := 4;
constant c_hl_css_reg_write_mtp_dis_bit : natural := 5;
constant c_hl_css_reg_read_mtp_dis_bit : natural := 6;
constant c_hl_css_reg_rrp_reset_dis_bit : natural := 7;
constant c_hl_css_reg_rrp_sweep_dis_bit : natural := 8;
constant c_hl_css_reg_rrp_seek_dis_bit : natural := 9;
constant c_hl_css_reg_rdv_dis_bit : natural := 10;
constant c_hl_css_reg_poa_dis_bit : natural := 11;
constant c_hl_css_reg_was_dis_bit : natural := 12;
constant c_hl_css_reg_adv_rd_lat_dis_bit : natural := 13;
constant c_hl_css_reg_adv_wr_lat_dis_bit : natural := 14;
constant c_hl_css_reg_prep_customer_mr_setup_dis_bit : natural := 15;
constant c_hl_css_reg_tracking_dis_bit : natural := 16;
constant c_hl_ccs_num_stages : natural := 17;
-- -----------------------------------------------------
-- Constants for DRAM addresses used during calibration:
-- -----------------------------------------------------
-- the mtp training pattern is x30F5
-- 1. write 0011 0000 and 1100 0000 such that one location will contains 0011 0000
-- 2. write in 1111 0101
-- also require locations containing all ones and all zeros
-- default choice of calibration burst length (overriden to 8 for reads for DDR3 devices)
constant c_cal_burst_len : natural := 4;
constant c_cal_ofs_step_size : natural := 8;
constant c_cal_ofs_zeros : natural := 0 * c_cal_ofs_step_size;
constant c_cal_ofs_ones : natural := 1 * c_cal_ofs_step_size;
constant c_cal_ofs_x30_almt_0 : natural := 2 * c_cal_ofs_step_size;
constant c_cal_ofs_x30_almt_1 : natural := 3 * c_cal_ofs_step_size;
constant c_cal_ofs_xF5 : natural := 5 * c_cal_ofs_step_size;
constant c_cal_ofs_wd_lat : natural := 6 * c_cal_ofs_step_size;
constant c_cal_data_len : natural := c_cal_ofs_wd_lat + c_cal_ofs_step_size;
constant c_cal_ofs_mtp : natural := 6*c_cal_ofs_step_size;
constant c_cal_ofs_mtp_len : natural := 4*4;
constant c_cal_ofs_01_pairs : natural := 2 * c_cal_burst_len;
constant c_cal_ofs_10_pairs : natural := 3 * c_cal_burst_len;
constant c_cal_ofs_1100_step : natural := 4 * c_cal_burst_len;
constant c_cal_ofs_0011_step : natural := 5 * c_cal_burst_len;
-- -----------------------------------------------------
-- Reset values. - These are chosen as default values for one PHY variation
-- with DDR2 memory and CAS latency 6, however in each calibration
-- mode these values will be set for a given PHY configuration.
-- -----------------------------------------------------
constant c_default_rd_lat : natural := 20;
constant c_default_wr_lat : natural := 5;
-- -----------------------------------------------------
-- Errorcodes
-- -----------------------------------------------------
-- implemented
constant C_SUCCESS : natural := 0;
constant C_ERR_RESYNC_NO_VALID_PHASES : natural := 5; -- No valid data-valid windows found
constant C_ERR_RESYNC_MULTIPLE_EQUAL_WINDOWS : natural := 6; -- Multiple equally-sized data valid windows
constant C_ERR_RESYNC_NO_INVALID_PHASES : natural := 7; -- No invalid data-valid windows found. Training patterns are designed so that there should always be at least one invalid phase.
constant C_ERR_CRITICAL : natural := 15; -- A condition that can't happen just happened.
constant C_ERR_READ_MTP_NO_VALID_ALMT : natural := 23;
constant C_ERR_READ_MTP_BOTH_ALMT_PASS : natural := 24;
constant C_ERR_WD_LAT_DISAGREEMENT : natural := 22; -- MEM_IF_DWIDTH/MEM_IF_DQ_PER_DQS copies of write-latency are written to memory. If all of these are not the same this error is generated.
constant C_ERR_MAX_RD_LAT_EXCEEDED : natural := 25;
constant C_ERR_MAX_TRK_SHFT_EXCEEDED : natural := 26;
-- not implemented yet
constant c_err_ac_lat_some_beats_are_different : natural := 1; -- implies DQ_1T setup failure or earlier.
constant c_err_could_not_find_read_lat : natural := 2; -- dodgy RDP setup
constant c_err_could_not_find_write_lat : natural := 3; -- dodgy WDP setup
constant c_err_clock_cycle_iteration_timeout : natural := 8; -- depends on srate calling error -- GENERIC
constant c_err_clock_cycle_it_timeout_rdp : natural := 9;
constant c_err_clock_cycle_it_timeout_rdv : natural := 10;
constant c_err_clock_cycle_it_timeout_poa : natural := 11;
constant c_err_pll_ack_timeout : natural := 13;
constant c_err_WindowProc_multiple_rsc_windows : natural := 16;
constant c_err_WindowProc_window_det_no_ones : natural := 17;
constant c_err_WindowProc_window_det_no_zeros : natural := 18;
constant c_err_WindowProc_undefined : natural := 19; -- catch all
constant c_err_tracked_mmc_offset_overflow : natural := 20;
constant c_err_no_mimic_feedback : natural := 21;
constant c_err_ctrl_ack_timeout : natural := 32;
constant c_err_ctrl_done_timeout : natural := 33;
-- -----------------------------------------------------
-- PLL phase locations per device family
-- (unused but a limited set is maintained here for reference)
-- -----------------------------------------------------
constant c_pll_resync_phs_select_ciii : natural := 5;
constant c_pll_mimic_phs_select_ciii : natural := 4;
constant c_pll_resync_phs_select_siii : natural := 5;
constant c_pll_mimic_phs_select_siii : natural := 7;
-- -----------------------------------------------------
-- Maximum sizing constraints
-- -----------------------------------------------------
constant C_MAX_NUM_PLL_RSC_PHASES : natural := 32;
-- -----------------------------------------------------
-- IO control Params
-- -----------------------------------------------------
constant c_set_oct_to_rs : std_logic := '0';
constant c_set_oct_to_rt : std_logic := '1';
constant c_set_odt_rt : std_logic := '1';
constant c_set_odt_off : std_logic := '0';
--
end ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg;
--
-- -----------------------------------------------------------------------------
-- Abstract : record package for the non-levelling AFI sequencer
-- The record package (alt_mem_phy_record_pkg) is used to combine
-- command and status signals (into records) to be passed between
-- sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
--
package ddr_ctrl_ip_phy_alt_mem_phy_record_pkg is
-- set some maximum constraints to bound natural numbers below
constant c_max_num_dqs_groups : natural := 24;
constant c_max_num_pins : natural := 8;
constant c_max_ranks : natural := 16;
constant c_max_pll_steps : natural := 80;
-- a prefix for all report signals to identify phy and sequencer block
--
constant record_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_record_pkg : ";
type t_family is (
cyclone3,
stratix2,
stratix3
);
-- -----------------------------------------------------------------------
-- the following are required for the non-levelling AFI PHY sequencer block interfaces
-- -----------------------------------------------------------------------
-- admin mode register settings (from mmi block)
type t_admin_ctrl is record
mr0 : std_logic_vector(12 downto 0);
mr1 : std_logic_vector(12 downto 0);
mr2 : std_logic_vector(12 downto 0);
mr3 : std_logic_vector(12 downto 0);
end record;
function defaults return t_admin_ctrl;
-- current admin status
type t_admin_stat is record
mr0 : std_logic_vector(12 downto 0);
mr1 : std_logic_vector(12 downto 0);
mr2 : std_logic_vector(12 downto 0);
mr3 : std_logic_vector(12 downto 0);
init_done : std_logic;
end record;
function defaults return t_admin_stat;
-- mmi to iram ctrl signals
type t_iram_ctrl is record
addr : natural range 0 to 1023;
wdata : std_logic_vector(31 downto 0);
write : std_logic;
read : std_logic;
end record;
function defaults return t_iram_ctrl;
-- broadcast iram status to mmi and dgrb
type t_iram_stat is record
rdata : std_logic_vector(31 downto 0);
done : std_logic;
err : std_logic;
err_code : std_logic_vector(3 downto 0);
init_done : std_logic;
out_of_mem : std_logic;
contested_access : std_logic;
end record;
function defaults return t_iram_stat;
-- codvw status signals from dgrb to mmi block
type t_dgrb_mmi is record
cal_codvw_phase : std_logic_vector(7 downto 0);
cal_codvw_size : std_logic_vector(7 downto 0);
codvw_trk_shift : std_logic_vector(11 downto 0);
codvw_grt_one_dvw : std_logic;
end record;
function defaults return t_dgrb_mmi;
-- signal to id which block is active
type t_ctrl_active_block is (
idle,
admin,
dgwb,
dgrb,
proc, -- unused in non-levelling AFI sequencer
setup, -- unused in non-levelling AFI sequencer
iram
);
function ret_proc return t_ctrl_active_block;
function ret_dgrb return t_ctrl_active_block;
-- control record for dgwb, dgrb, iram and admin blocks:
-- the possible commands
type t_ctrl_cmd_id is (
cmd_idle,
-- initialisation stages
cmd_phy_initialise,
cmd_init_dram,
cmd_prog_cal_mr,
cmd_write_ihi,
-- calibration stages
cmd_write_btp,
cmd_write_mtp,
cmd_read_mtp,
cmd_rrp_reset,
cmd_rrp_sweep,
cmd_rrp_seek,
cmd_rdv,
cmd_poa,
cmd_was,
-- advertise controller settings and re-configure for customer operation mode.
cmd_prep_adv_rd_lat,
cmd_prep_adv_wr_lat,
cmd_prep_customer_mr_setup,
cmd_tr_due
);
-- which block should execute each command
function curr_active_block (
ctrl_cmd_id : t_ctrl_cmd_id
) return t_ctrl_active_block;
-- specify command operands as a record
type t_command_op is record
current_cs : natural range 0 to c_max_ranks-1; -- which chip select is being calibrated
single_bit : std_logic; -- current operation should be single bit
mtp_almt : natural range 0 to 1; -- signals mtp alignment to be used for operation
end record;
function defaults return t_command_op;
-- command request record (sent to each block)
type t_ctrl_command is record
command : t_ctrl_cmd_id;
command_op : t_command_op;
command_req : std_logic;
end record;
function defaults return t_ctrl_command;
-- a generic status record for each block
type t_ctrl_stat is record
command_ack : std_logic;
command_done : std_logic;
command_result : std_logic_vector(7 downto 0 );
command_err : std_logic;
end record;
function defaults return t_ctrl_stat;
-- push interface for dgwb / dgrb blocks (only the dgrb uses this interface at present)
type t_iram_push is record
iram_done : std_logic;
iram_write : std_logic;
iram_wordnum : natural range 0 to 511; -- acts as an offset to current location (max = 80 pll steps *2 sweeps and 80 pins)
iram_bitnum : natural range 0 to 31; -- for bitwise packing modes
iram_pushdata : std_logic_vector(31 downto 0); -- only bit zero used for bitwise packing_mode
end record;
function defaults return t_iram_push;
-- control block "master" state machine
type t_master_sm_state is
(
s_reset,
s_phy_initialise, -- wait for dll lock and init done flag from iram
s_init_dram, -- dram initialisation - reset sequence
s_prog_cal_mr, -- dram initialisation - programming mode registers (once per chip select)
s_write_ihi, -- write header information in iRAM
s_cal, -- check if calibration to be executed
s_write_btp, -- write burst training pattern
s_write_mtp, -- write more training pattern
s_read_mtp, -- read training patterns to find correct alignment for 1100 burst
-- (this is a special case of s_rrp_seek with no resych phase setting)
s_rrp_reset, -- read resync phase setup - reset initial conditions
s_rrp_sweep, -- read resync phase setup - sweep phases per chip select
s_rrp_seek, -- read resync phase setup - seek correct phase
s_rdv, -- read data valid setup
s_was, -- write datapath setup (ac to write data timing)
s_adv_rd_lat, -- advertise read latency
s_adv_wr_lat, -- advertise write latency
s_poa, -- calibrate the postamble (dqs based capture only)
s_tracking_setup, -- perform tracking (1st pass to setup mimic window)
s_prep_customer_mr_setup, -- apply user mode register settings (in admin block)
s_tracking, -- perform tracking (subsequent passes in user mode)
s_operational, -- calibration successful and in user mode
s_non_operational -- calibration unsuccessful and in user mode
);
-- record (set in mmi block) to disable calibration states
type t_hl_css_reg is record
phy_initialise_dis : std_logic;
init_dram_dis : std_logic;
write_ihi_dis : std_logic;
cal_dis : std_logic;
write_btp_dis : std_logic;
write_mtp_dis : std_logic;
read_mtp_dis : std_logic;
rrp_reset_dis : std_logic;
rrp_sweep_dis : std_logic;
rrp_seek_dis : std_logic;
rdv_dis : std_logic;
poa_dis : std_logic;
was_dis : std_logic;
adv_rd_lat_dis : std_logic;
adv_wr_lat_dis : std_logic;
prep_customer_mr_setup_dis : std_logic;
tracking_dis : std_logic;
end record;
function defaults return t_hl_css_reg;
-- record (set in ctrl block) to identify when a command has been acknowledged
type t_cal_stage_ack_seen is record
cal : std_logic;
phy_initialise : std_logic;
init_dram : std_logic;
write_ihi : std_logic;
write_btp : std_logic;
write_mtp : std_logic;
read_mtp : std_logic;
rrp_reset : std_logic;
rrp_sweep : std_logic;
rrp_seek : std_logic;
rdv : std_logic;
poa : std_logic;
was : std_logic;
adv_rd_lat : std_logic;
adv_wr_lat : std_logic;
prep_customer_mr_setup : std_logic;
tracking_setup : std_logic;
end record;
function defaults return t_cal_stage_ack_seen;
-- ctrl to mmi block interface (calibration status)
type t_ctrl_mmi is record
master_state_r : t_master_sm_state;
ctrl_calibration_success : std_logic;
ctrl_calibration_fail : std_logic;
ctrl_current_stage_done : std_logic;
ctrl_current_stage : t_ctrl_cmd_id;
ctrl_current_active_block : t_ctrl_active_block;
ctrl_cal_stage_ack_seen : t_cal_stage_ack_seen;
ctrl_err_code : std_logic_vector(7 downto 0);
end record;
function defaults return t_ctrl_mmi;
-- mmi to ctrl block interface (calibration control signals)
type t_mmi_ctrl is record
hl_css : t_hl_css_reg;
calibration_start : std_logic;
tracking_period_ms : natural range 0 to 255;
tracking_orvd_to_10ms : std_logic;
end record;
function defaults return t_mmi_ctrl;
-- algorithm parameterisation (generated in mmi block)
type t_algm_paramaterisation is record
num_phases_per_tck_pll : natural range 1 to c_max_pll_steps;
nominal_dqs_delay : natural range 0 to 4;
pll_360_sweeps : natural range 0 to 15;
nominal_poa_phase_lead : natural range 0 to 7;
maximum_poa_delay : natural range 0 to 15;
odt_enabled : boolean;
extend_octrt_by : natural range 0 to 15;
delay_octrt_by : natural range 0 to 15;
tracking_period_ms : natural range 0 to 255;
end record;
-- interface between mmi and pll to control phase shifting
type t_mmi_pll_reconfig is record
pll_phs_shft_phase_sel : natural range 0 to 15;
pll_phs_shft_up_wc : std_logic;
pll_phs_shft_dn_wc : std_logic;
end record;
type t_pll_mmi is record
pll_busy : std_logic;
err : std_logic_vector(1 downto 0);
end record;
-- specify the iram configuration this is default
-- currently always dq_bitwise packing and a write mode of overwrite_ram
type t_iram_packing_mode is (
dq_bitwise,
dq_wordwise
);
type t_iram_write_mode is (
overwrite_ram,
or_into_ram,
and_into_ram
);
type t_ctrl_iram is record
packing_mode : t_iram_packing_mode;
write_mode : t_iram_write_mode;
active_block : t_ctrl_active_block;
end record;
function defaults return t_ctrl_iram;
-- -----------------------------------------------------------------------
-- the following are required for compliance to levelling AFI PHY interface but
-- are non-functional for non-levelling AFI PHY sequencer
-- -----------------------------------------------------------------------
type t_sc_ctrl_if is record
read : std_logic;
write : std_logic;
dqs_group_sel : std_logic_vector( 4 downto 0);
sc_in_group_sel : std_logic_vector( 5 downto 0);
wdata : std_logic_vector(45 downto 0);
op_type : std_logic_vector( 1 downto 0);
end record;
function defaults return t_sc_ctrl_if;
type t_sc_stat is record
rdata : std_logic_vector(45 downto 0);
busy : std_logic;
error_det : std_logic;
err_code : std_logic_vector(1 downto 0);
sc_cap : std_logic_vector(7 downto 0);
end record;
function defaults return t_sc_stat;
type t_element_to_reconfigure is (
pp_t9,
pp_t10,
pp_t1,
dqslb_rsc_phs,
dqslb_poa_phs_ofst,
dqslb_dqs_phs,
dqslb_dq_phs_ofst,
dqslb_dq_1t,
dqslb_dqs_1t,
dqslb_rsc_1t,
dqslb_div2_phs,
dqslb_oct_t9,
dqslb_oct_t10,
dqslb_poa_t7,
dqslb_poa_t11,
dqslb_dqs_dly,
dqslb_lvlng_byps
);
type t_sc_type is (
DQS_LB,
DQS_DQ_DM_PINS,
DQ_DM_PINS,
dqs_dqsn_pins,
dq_pin,
dqs_pin,
dm_pin,
dq_pins
);
type t_sc_int_ctrl is record
group_num : natural range 0 to c_max_num_dqs_groups;
group_type : t_sc_type;
pin_num : natural range 0 to c_max_num_pins;
sc_element : t_element_to_reconfigure;
prog_val : std_logic_vector(3 downto 0);
ram_set : std_logic;
sc_update : std_logic;
end record;
function defaults return t_sc_int_ctrl;
-- -----------------------------------------------------------------------
-- record and functions for instant on mode
-- -----------------------------------------------------------------------
-- ranges on the below are not important because this logic is not synthesised
type t_preset_cal is record
codvw_phase : natural range 0 to 2*c_max_pll_steps;-- rsc phase
codvw_size : natural range 0 to c_max_pll_steps; -- rsc size (unused but reported)
rlat : natural; -- advertised read latency ctl_rlat (in phy clock cycles)
rdv_lat : natural; -- read data valid latency decrements needed (in memory clock cycles)
wlat : natural; -- advertised write latency ctl_wlat (in phy clock cycles)
ac_1t : std_logic; -- address / command 1t delay setting (HR only)
poa_lat : natural; -- poa latency decrements needed (in memory clock cycles)
end record;
-- the below are hardcoded (do not change)
constant c_ddr_default_cl : natural := 3;
constant c_ddr2_default_cl : natural := 6;
constant c_ddr3_default_cl : natural := 6;
constant c_ddr2_default_cwl : natural := 5;
constant c_ddr3_default_cwl : natural := 5;
constant c_ddr2_default_al : natural := 0;
constant c_ddr3_default_al : natural := 0;
constant c_ddr_default_rl : integer := c_ddr_default_cl;
constant c_ddr2_default_rl : integer := c_ddr2_default_cl + c_ddr2_default_al;
constant c_ddr3_default_rl : integer := c_ddr3_default_cl + c_ddr3_default_al;
constant c_ddr_default_wl : integer := 1;
constant c_ddr2_default_wl : integer := c_ddr2_default_cwl + c_ddr2_default_al;
constant c_ddr3_default_wl : integer := c_ddr3_default_cwl + c_ddr3_default_al;
function defaults return t_preset_cal;
function setup_instant_on (sim_time_red : natural;
family_id : natural;
memory_type : string;
dwidth_ratio : natural;
pll_steps : natural;
mr0 : std_logic_vector(15 downto 0);
mr1 : std_logic_vector(15 downto 0);
mr2 : std_logic_vector(15 downto 0)) return t_preset_cal;
--
end ddr_ctrl_ip_phy_alt_mem_phy_record_pkg;
--
package body ddr_ctrl_ip_phy_alt_mem_phy_record_pkg IS
-- -----------------------------------------------------------------------
-- function implementations for the above declarations
-- these are mainly default conditions for records
-- -----------------------------------------------------------------------
function defaults return t_admin_ctrl is
variable output : t_admin_ctrl;
begin
output.mr0 := (others => '0');
output.mr1 := (others => '0');
output.mr2 := (others => '0');
output.mr3 := (others => '0');
return output;
end function;
function defaults return t_admin_stat is
variable output : t_admin_stat;
begin
output.mr0 := (others => '0');
output.mr1 := (others => '0');
output.mr2 := (others => '0');
output.mr3 := (others => '0');
return output;
end function;
function defaults return t_iram_ctrl is
variable output : t_iram_ctrl;
begin
output.addr := 0;
output.wdata := (others => '0');
output.write := '0';
output.read := '0';
return output;
end function;
function defaults return t_iram_stat is
variable output : t_iram_stat;
begin
output.rdata := (others => '0');
output.done := '0';
output.err := '0';
output.err_code := (others => '0');
output.init_done := '0';
output.out_of_mem := '0';
output.contested_access := '0';
return output;
end function;
function defaults return t_dgrb_mmi is
variable output : t_dgrb_mmi;
begin
output.cal_codvw_phase := (others => '0');
output.cal_codvw_size := (others => '0');
output.codvw_trk_shift := (others => '0');
output.codvw_grt_one_dvw := '0';
return output;
end function;
function ret_proc return t_ctrl_active_block is
variable output : t_ctrl_active_block;
begin
output := proc;
return output;
end function;
function ret_dgrb return t_ctrl_active_block is
variable output : t_ctrl_active_block;
begin
output := dgrb;
return output;
end function;
function defaults return t_ctrl_iram is
variable output : t_ctrl_iram;
begin
output.packing_mode := dq_bitwise;
output.write_mode := overwrite_ram;
output.active_block := idle;
return output;
end function;
function defaults return t_command_op is
variable output : t_command_op;
begin
output.current_cs := 0;
output.single_bit := '0';
output.mtp_almt := 0;
return output;
end function;
function defaults return t_ctrl_command is
variable output : t_ctrl_command;
begin
output.command := cmd_idle;
output.command_req := '0';
output.command_op := defaults;
return output;
end function;
-- decode which block is associated with which command
function curr_active_block (
ctrl_cmd_id : t_ctrl_cmd_id
) return t_ctrl_active_block is
begin
case ctrl_cmd_id is
when cmd_idle => return idle;
when cmd_phy_initialise => return idle;
when cmd_init_dram => return admin;
when cmd_prog_cal_mr => return admin;
when cmd_write_ihi => return iram;
when cmd_write_btp => return dgwb;
when cmd_write_mtp => return dgwb;
when cmd_read_mtp => return dgrb;
when cmd_rrp_reset => return dgrb;
when cmd_rrp_sweep => return dgrb;
when cmd_rrp_seek => return dgrb;
when cmd_rdv => return dgrb;
when cmd_poa => return dgrb;
when cmd_was => return dgwb;
when cmd_prep_adv_rd_lat => return dgrb;
when cmd_prep_adv_wr_lat => return dgrb;
when cmd_prep_customer_mr_setup => return admin;
when cmd_tr_due => return dgrb;
when others => return idle;
end case;
end function;
function defaults return t_ctrl_stat is
variable output : t_ctrl_stat;
begin
output.command_ack := '0';
output.command_done := '0';
output.command_err := '0';
output.command_result := (others => '0');
return output;
end function;
function defaults return t_iram_push is
variable output : t_iram_push;
begin
output.iram_done := '0';
output.iram_write := '0';
output.iram_wordnum := 0;
output.iram_bitnum := 0;
output.iram_pushdata := (others => '0');
return output;
end function;
function defaults return t_hl_css_reg is
variable output : t_hl_css_reg;
begin
output.phy_initialise_dis := '0';
output.init_dram_dis := '0';
output.write_ihi_dis := '0';
output.cal_dis := '0';
output.write_btp_dis := '0';
output.write_mtp_dis := '0';
output.read_mtp_dis := '0';
output.rrp_reset_dis := '0';
output.rrp_sweep_dis := '0';
output.rrp_seek_dis := '0';
output.rdv_dis := '0';
output.poa_dis := '0';
output.was_dis := '0';
output.adv_rd_lat_dis := '0';
output.adv_wr_lat_dis := '0';
output.prep_customer_mr_setup_dis := '0';
output.tracking_dis := '0';
return output;
end function;
function defaults return t_cal_stage_ack_seen is
variable output : t_cal_stage_ack_seen;
begin
output.cal := '0';
output.phy_initialise := '0';
output.init_dram := '0';
output.write_ihi := '0';
output.write_btp := '0';
output.write_mtp := '0';
output.read_mtp := '0';
output.rrp_reset := '0';
output.rrp_sweep := '0';
output.rrp_seek := '0';
output.rdv := '0';
output.poa := '0';
output.was := '0';
output.adv_rd_lat := '0';
output.adv_wr_lat := '0';
output.prep_customer_mr_setup := '0';
output.tracking_setup := '0';
return output;
end function;
function defaults return t_mmi_ctrl is
variable output : t_mmi_ctrl;
begin
output.hl_css := defaults;
output.calibration_start := '0';
output.tracking_period_ms := 0;
output.tracking_orvd_to_10ms := '0';
return output;
end function;
function defaults return t_ctrl_mmi is
variable output : t_ctrl_mmi;
begin
output.master_state_r := s_reset;
output.ctrl_calibration_success := '0';
output.ctrl_calibration_fail := '0';
output.ctrl_current_stage_done := '0';
output.ctrl_current_stage := cmd_idle;
output.ctrl_current_active_block := idle;
output.ctrl_cal_stage_ack_seen := defaults;
output.ctrl_err_code := (others => '0');
return output;
end function;
-------------------------------------------------------------------------
-- the following are required for compliance to levelling AFI PHY interface but
-- are non-functional for non-levelling AFi PHY sequencer
-------------------------------------------------------------------------
function defaults return t_sc_ctrl_if is
variable output : t_sc_ctrl_if;
begin
output.read := '0';
output.write := '0';
output.dqs_group_sel := (others => '0');
output.sc_in_group_sel := (others => '0');
output.wdata := (others => '0');
output.op_type := (others => '0');
return output;
end function;
function defaults return t_sc_stat is
variable output : t_sc_stat;
begin
output.rdata := (others => '0');
output.busy := '0';
output.error_det := '0';
output.err_code := (others => '0');
output.sc_cap := (others => '0');
return output;
end function;
function defaults return t_sc_int_ctrl is
variable output : t_sc_int_ctrl;
begin
output.group_num := 0;
output.group_type := DQ_PIN;
output.pin_num := 0;
output.sc_element := pp_t9;
output.prog_val := (others => '0');
output.ram_set := '0';
output.sc_update := '0';
return output;
end function;
-- -----------------------------------------------------------------------
-- functions for instant on mode
--
--
-- Guide on how to use:
--
-- The following factors effect the setup of the PHY:
-- - AC Phase - phase at which address/command signals launched wrt PHY clock
-- - this effects the read/write latency
-- - MR settings - CL, CWL, AL
-- - Data rate - HR or FR (DDR/DDR2 only)
-- - Family - datapaths are subtly different for each
-- - Memory type - DDR/DDR2/DDR3 (different latency behaviour - see specs)
--
-- Instant on mode is designed to work for the following subset of the
-- above factors:
-- - AC Phase - out of the box defaults, which is 240 degrees for SIII type
-- families (includes SIV, HCIII, HCIV), else 90 degrees
-- - MR Settings - DDR - CL 3 only
-- - DDR2 - CL 3,4,5,6, AL 0
-- - DDR3 - CL 5,6 CWL 5, AL 0
-- - Data rate - All
-- - Families - All
-- - Memory type - All
--
-- Hints on bespoke setup for parameters outside the above or if the
-- datapath is modified (only for VHDL sim mode):
--
-- Step 1 - Run simulation with REDUCE_SIM_TIME mode 2 (FAST)
--
-- Step 2 - From the output log find the following text:
-- # -----------------------------------------------------------------------
-- **** ALTMEMPHY CALIBRATION has completed ****
-- Status:
-- calibration has : PASSED
-- PHY read latency (ctl_rlat) is : 14
-- address/command to PHY write latency (ctl_wlat) is : 2
-- read resynch phase calibration report:
-- calibrated centre of data valid window phase : 32
-- calibrated centre of data valid window size : 24
-- chosen address and command 1T delay: no 1T delay
-- poa 'dec' adjustments = 27
-- rdv 'dec' adjustments = 25
-- # -----------------------------------------------------------------------
--
-- Step 3 - Convert the text to bespoke instant on settings at the end of the
-- setup_instant_on function using the
-- override_instant_on function, note type is t_preset_cal
--
-- The mapping is as follows:
--
-- PHY read latency (ctl_rlat) is : 14 => rlat := 14
-- address/command to PHY write latency (ctl_wlat) is : 2 => wlat := 2
-- read resynch phase calibration report:
-- calibrated centre of data valid window phase : 32 => codvw_phase := 32
-- calibrated centre of data valid window size : 24 => codvw_size := 24
-- chosen address and command 1T delay: no 1T delay => ac_1t := '0'
-- poa 'dec' adjustments = 27 => poa_lat := 27
-- rdv 'dec' adjustments = 25 => rdv_lat := 25
--
-- Step 4 - Try running in REDUCE_SIM_TIME mode 1 (SUPERFAST mode)
--
-- Step 5 - If still fails observe the behaviour of the controller, for the
-- following symptoms:
-- - If first 2 beats of read data lost (POA enable too late) - inc poa_lat by 1 (poa_lat is number of POA decrements not actual latency)
-- - If last 2 beats of read data lost (POA enable too early) - dec poa_lat by 1
-- - If ctl_rdata_valid misaligned to ctl_rdata then alter number of RDV adjustments (rdv_lat)
-- - If write data is not 4-beat aligned (when written into memory) toggle ac_1t (HR only)
-- - If read data is not 4-beat aligned (but write data is) add 360 degrees to phase (PLL_STEPS_PER_CYCLE) mod 2*PLL_STEPS_PER_CYCLE (HR only)
--
-- Step 6 - If the above fails revert to REDUCE_SIM_TIME = 2 (FAST) mode
--
-- --------------------------------------------------------------------------
-- defaults
function defaults return t_preset_cal is
variable output : t_preset_cal;
begin
output.codvw_phase := 0;
output.codvw_size := 0;
output.wlat := 0;
output.rlat := 0;
output.rdv_lat := 0;
output.ac_1t := '1'; -- default on for FR
output.poa_lat := 0;
return output;
end function;
-- Functions to extract values from MR
-- return cl (for DDR memory 2*cl because of 1/2 cycle latencies)
procedure mr0_to_cl (memory_type : string;
mr0 : std_logic_vector(15 downto 0);
cl : out natural;
half_cl : out std_logic) is
variable v_cl : natural;
begin
half_cl := '0';
if memory_type = "DDR" then -- DDR memories
-- returns cl*2 because of 1/2 latencies
v_cl := to_integer(unsigned(mr0(5 downto 4)));
-- integer values of cl
if mr0(6) = '0' then
assert v_cl > 1 report record_report_prefix & "invalid cas latency for DDR memory, should be in range 1.5-3" severity failure;
end if;
if mr0(6) = '1' then
assert (v_cl = 1 or v_cl = 2) report record_report_prefix & "invalid cas latency for DDR memory, should be in range 1.5-3" severity failure;
half_cl := '1';
end if;
elsif memory_type = "DDR2" then -- DDR2 memories
v_cl := to_integer(unsigned(mr0(6 downto 4)));
-- sanity checks
assert (v_cl > 1 and v_cl < 7) report record_report_prefix & "invalid cas latency for DDR2 memory, should be in range 2-6 but equals " & integer'image(v_cl) severity failure;
elsif memory_type = "DDR3" then -- DDR3 memories
v_cl := to_integer(unsigned(mr0(6 downto 4)))+4;
--sanity checks
assert mr0(2) = '0' report record_report_prefix & "invalid cas latency for DDR3 memory, bit a2 in mr0 is set" severity failure;
assert v_cl /= 4 report record_report_prefix & "invalid cas latency for DDR3 memory, bits a6:4 set to zero" severity failure;
else
report record_report_prefix & "Undefined memory type " & memory_type severity failure;
end if;
cl := v_cl;
end procedure;
function mr1_to_al (memory_type : string;
mr1 : std_logic_vector(15 downto 0);
cl : natural) return natural is
variable al : natural;
begin
if memory_type = "DDR" then -- DDR memories
-- unsupported so return zero
al := 0;
elsif memory_type = "DDR2" then -- DDR2 memories
al := to_integer(unsigned(mr1(5 downto 3)));
assert al < 6 report record_report_prefix & "invalid additive latency for DDR2 memory, should be in range 0-5 but equals " & integer'image(al) severity failure;
elsif memory_type = "DDR3" then -- DDR3 memories
al := to_integer(unsigned(mr1(4 downto 3)));
assert al /= 3 report record_report_prefix & "invalid additive latency for DDR2 memory, should be in range 0-5 but equals " & integer'image(al) severity failure;
if al /= 0 then -- CL-1 or CL-2
al := cl - al;
end if;
else
report record_report_prefix & "Undefined memory type " & memory_type severity failure;
end if;
return al;
end function;
-- return cwl
function mr2_to_cwl (memory_type : string;
mr2 : std_logic_vector(15 downto 0);
cl : natural) return natural is
variable cwl : natural;
begin
if memory_type = "DDR" then -- DDR memories
cwl := 1;
elsif memory_type = "DDR2" then -- DDR2 memories
cwl := cl - 1;
elsif memory_type = "DDR3" then -- DDR3 memories
cwl := to_integer(unsigned(mr2(5 downto 3))) + 5;
--sanity checks
assert cwl < 9 report record_report_prefix & "invalid cas write latency for DDR3 memory, should be in range 5-8 but equals " & integer'image(cwl) severity failure;
else
report record_report_prefix & "Undefined memory type " & memory_type severity failure;
end if;
return cwl;
end function;
-- -----------------------------------
-- Functions to determine which family group
-- Include any family alias here
-- -----------------------------------
function is_siii(family_id : natural) return boolean is
begin
if family_id = 3 or family_id = 5 then
return true;
else
return false;
end if;
end function;
function is_ciii(family_id : natural) return boolean is
begin
if family_id = 2 then
return true;
else
return false;
end if;
end function;
function is_aii(family_id : natural) return boolean is
begin
if family_id = 4 then
return true;
else
return false;
end if;
end function;
function is_sii(family_id : natural) return boolean is
begin
if family_id = 1 then
return true;
else
return false;
end if;
end function;
-- -----------------------------------
-- Functions to lookup hardcoded values
-- on per family basis
-- DDR: CL = 3
-- DDR2: CL = 6, CWL = 5, AL = 0
-- DDR3: CL = 6, CWL = 5, AL = 0
-- -----------------------------------
-- default ac phase = 240
function siii_family_settings (dwidth_ratio : integer;
memory_type : string;
pll_steps : natural
) return t_preset_cal is
variable v_output : t_preset_cal;
begin
v_output := defaults;
if memory_type = "DDR" then -- CAS = 3
if dwidth_ratio = 2 then
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 15;
v_output.rdv_lat := 11;
v_output.poa_lat := 11;
else
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 15;
v_output.rdv_lat := 23;
v_output.ac_1t := '0';
v_output.poa_lat := 24;
end if;
elsif memory_type = "DDR2" then -- CAS = 6
if dwidth_ratio = 2 then
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 5;
v_output.rlat := 16;
v_output.rdv_lat := 10;
v_output.poa_lat := 8;
else
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 3;
v_output.rlat := 16;
v_output.rdv_lat := 21;
v_output.ac_1t := '0';
v_output.poa_lat := 22;
end if;
elsif memory_type = "DDR3" then -- HR only, CAS = 6
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 2;
v_output.rlat := 15;
v_output.rdv_lat := 23;
v_output.ac_1t := '0';
v_output.poa_lat := 24;
end if;
-- adapt settings for ac_phase (default 240 degrees so leave commented)
-- if dwidth_ratio = 2 then
-- v_output.wlat := v_output.wlat - 1;
-- v_output.rlat := v_output.rlat - 1;
-- v_output.rdv_lat := v_output.rdv_lat + 1;
-- v_output.poa_lat := v_output.poa_lat + 1;
-- else
-- v_output.ac_1t := not v_output.ac_1t;
-- end if;
v_output.codvw_size := pll_steps;
return v_output;
end function;
-- default ac phase = 90
function ciii_family_settings (dwidth_ratio : integer;
memory_type : string;
pll_steps : natural) return t_preset_cal is
variable v_output : t_preset_cal;
begin
v_output := defaults;
if memory_type = "DDR" then -- CAS = 3
if dwidth_ratio = 2 then
v_output.codvw_phase := 3*pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 15;
v_output.rdv_lat := 11;
v_output.poa_lat := 11; --unused
else
v_output.codvw_phase := 3*pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 13;
v_output.rdv_lat := 27;
v_output.ac_1t := '1';
v_output.poa_lat := 27; --unused
end if;
elsif memory_type = "DDR2" then -- CAS = 6
if dwidth_ratio = 2 then
v_output.codvw_phase := 3*pll_steps/4;
v_output.wlat := 5;
v_output.rlat := 18;
v_output.rdv_lat := 8;
v_output.poa_lat := 8; --unused
else
v_output.codvw_phase := pll_steps + 3*pll_steps/4;
v_output.wlat := 3;
v_output.rlat := 14;
v_output.rdv_lat := 25;
v_output.ac_1t := '1';
v_output.poa_lat := 25; --unused
end if;
end if;
-- adapt settings for ac_phase (hardcode for 90 degrees)
if dwidth_ratio = 2 then
v_output.wlat := v_output.wlat + 1;
v_output.rlat := v_output.rlat + 1;
v_output.rdv_lat := v_output.rdv_lat - 1;
v_output.poa_lat := v_output.poa_lat - 1;
else
v_output.ac_1t := not v_output.ac_1t;
end if;
v_output.codvw_size := pll_steps/2;
return v_output;
end function;
-- default ac phase = 90
function sii_family_settings (dwidth_ratio : integer;
memory_type : string;
pll_steps : natural) return t_preset_cal is
variable v_output : t_preset_cal;
begin
v_output := defaults;
if memory_type = "DDR" then -- CAS = 3
if dwidth_ratio = 2 then
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 15;
v_output.rdv_lat := 11;
v_output.poa_lat := 13;
else
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 13;
v_output.rdv_lat := 27;
v_output.ac_1t := '1';
v_output.poa_lat := 22;
end if;
elsif memory_type = "DDR2" then
if dwidth_ratio = 2 then
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 5;
v_output.rlat := 18;
v_output.rdv_lat := 8;
v_output.poa_lat := 10;
else
v_output.codvw_phase := pll_steps + pll_steps/4;
v_output.wlat := 3;
v_output.rlat := 14;
v_output.rdv_lat := 25;
v_output.ac_1t := '1';
v_output.poa_lat := 20;
end if;
end if;
-- adapt settings for ac_phase (hardcode for 90 degrees)
if dwidth_ratio = 2 then
v_output.wlat := v_output.wlat + 1;
v_output.rlat := v_output.rlat + 1;
v_output.rdv_lat := v_output.rdv_lat - 1;
v_output.poa_lat := v_output.poa_lat - 1;
else
v_output.ac_1t := not v_output.ac_1t;
end if;
v_output.codvw_size := pll_steps;
return v_output;
end function;
-- default ac phase = 90
function aii_family_settings (dwidth_ratio : integer;
memory_type : string;
pll_steps : natural) return t_preset_cal is
variable v_output : t_preset_cal;
begin
v_output := defaults;
if memory_type = "DDR" then -- CAS = 3
if dwidth_ratio = 2 then
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 16;
v_output.rdv_lat := 10;
v_output.poa_lat := 15;
else
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 1;
v_output.rlat := 13;
v_output.rdv_lat := 27;
v_output.ac_1t := '1';
v_output.poa_lat := 24;
end if;
elsif memory_type = "DDR2" then
if dwidth_ratio = 2 then
v_output.codvw_phase := pll_steps/4;
v_output.wlat := 5;
v_output.rlat := 19;
v_output.rdv_lat := 9;
v_output.poa_lat := 12;
else
v_output.codvw_phase := pll_steps + pll_steps/4;
v_output.wlat := 3;
v_output.rlat := 14;
v_output.rdv_lat := 25;
v_output.ac_1t := '1';
v_output.poa_lat := 22;
end if;
elsif memory_type = "DDR3" then -- HR only, CAS = 6
v_output.codvw_phase := pll_steps + pll_steps/4;
v_output.wlat := 3;
v_output.rlat := 14;
v_output.rdv_lat := 25;
v_output.ac_1t := '1';
v_output.poa_lat := 22;
end if;
-- adapt settings for ac_phase (hardcode for 90 degrees)
if dwidth_ratio = 2 then
v_output.wlat := v_output.wlat + 1;
v_output.rlat := v_output.rlat + 1;
v_output.rdv_lat := v_output.rdv_lat - 1;
v_output.poa_lat := v_output.poa_lat - 1;
else
v_output.ac_1t := not v_output.ac_1t;
end if;
v_output.codvw_size := pll_steps;
return v_output;
end function;
function is_odd(num : integer) return boolean is
variable v_num : integer;
begin
v_num := num;
if v_num - (v_num/2)*2 = 0 then
return false;
else
return true;
end if;
end function;
------------------------------------------------
-- top level function to setup instant on mode
------------------------------------------------
function override_instant_on return t_preset_cal is
variable v_output : t_preset_cal;
begin
v_output := defaults;
-- add in overrides here
return v_output;
end function;
function setup_instant_on (sim_time_red : natural;
family_id : natural;
memory_type : string;
dwidth_ratio : natural;
pll_steps : natural;
mr0 : std_logic_vector(15 downto 0);
mr1 : std_logic_vector(15 downto 0);
mr2 : std_logic_vector(15 downto 0)) return t_preset_cal is
variable v_output : t_preset_cal;
variable v_cl : natural; -- cas latency
variable v_half_cl : std_logic; -- + 0.5 cycles (DDR only)
variable v_al : natural; -- additive latency (ddr2/ddr3 only)
variable v_cwl : natural; -- cas write latency (ddr3 only)
variable v_rl : integer range 0 to 15;
variable v_wl : integer;
variable v_delta_rl : integer range -10 to 10; -- from given defaults
variable v_delta_wl : integer; -- from given defaults
variable v_debug : boolean;
begin
v_debug := true;
v_output := defaults;
if sim_time_red = 1 then -- only set if STR equals 1
-- ----------------------------------------
-- extract required parameters from MRs
-- ----------------------------------------
mr0_to_cl(memory_type, mr0, v_cl, v_half_cl);
v_al := mr1_to_al(memory_type, mr1, v_cl);
v_cwl := mr2_to_cwl(memory_type, mr2, v_cl);
v_rl := v_cl + v_al;
v_wl := v_cwl + v_al;
if v_debug then
report record_report_prefix & "Extracted MR parameters" & LF &
"CAS = " & integer'image(v_cl) & LF &
"CWL = " & integer'image(v_cwl) & LF &
"AL = " & integer'image(v_al) & LF;
end if;
-- ----------------------------------------
-- apply per family, memory type and dwidth_ratio static setup
-- ----------------------------------------
if is_siii(family_id) then
v_output := siii_family_settings(dwidth_ratio, memory_type, pll_steps);
elsif is_ciii(family_id) then
v_output := ciii_family_settings(dwidth_ratio, memory_type, pll_steps);
elsif is_aii(family_id) then
v_output := aii_family_settings(dwidth_ratio, memory_type, pll_steps);
elsif is_sii(family_id) then
v_output := sii_family_settings(dwidth_ratio, memory_type, pll_steps);
end if;
-- ----------------------------------------
-- correct for different cwl, cl and al settings
-- ----------------------------------------
if memory_type = "DDR" then
v_delta_rl := v_rl - c_ddr_default_rl;
v_delta_wl := v_wl - c_ddr_default_wl;
elsif memory_type = "DDR2" then
v_delta_rl := v_rl - c_ddr2_default_rl;
v_delta_wl := v_wl - c_ddr2_default_wl;
else -- DDR3
v_delta_rl := v_rl - c_ddr3_default_rl;
v_delta_wl := v_wl - c_ddr3_default_wl;
end if;
if v_debug then
report record_report_prefix & "Extracted memory latency (and delta from default)" & LF &
"RL = " & integer'image(v_rl) & LF &
"WL = " & integer'image(v_wl) & LF &
"delta RL = " & integer'image(v_delta_rl) & LF &
"delta WL = " & integer'image(v_delta_wl) & LF;
end if;
if dwidth_ratio = 2 then
-- adjust rdp settings
v_output.rlat := v_output.rlat + v_delta_rl;
v_output.rdv_lat := v_output.rdv_lat - v_delta_rl;
v_output.poa_lat := v_output.poa_lat - v_delta_rl;
-- adjust wdp settings
v_output.wlat := v_output.wlat + v_delta_wl;
elsif dwidth_ratio = 4 then
-- adjust wdp settings
v_output.wlat := v_output.wlat + v_delta_wl/2;
if is_odd(v_delta_wl) then -- add / sub 1t write latency
-- toggle ac_1t in all cases
v_output.ac_1t := not v_output.ac_1t;
if v_delta_wl < 0 then -- sub 1 from latency
if v_output.ac_1t = '0' then -- phy_clk cc boundary
v_output.wlat := v_output.wlat - 1;
end if;
else -- add 1 to latency
if v_output.ac_1t = '1' then -- phy_clk cc boundary
v_output.wlat := v_output.wlat + 1;
end if;
end if;
-- update read latency
if v_output.ac_1t = '1' then -- added 1t to address/command so inc read_lat
v_delta_rl := v_delta_rl + 1;
else -- subtracted 1t from address/command so dec read_lat
v_delta_rl := v_delta_rl - 1;
end if;
end if;
-- adjust rdp settings
v_output.rlat := v_output.rlat + v_delta_rl/2;
v_output.rdv_lat := v_output.rdv_lat - v_delta_rl;
v_output.poa_lat := v_output.poa_lat - v_delta_rl;
if memory_type = "DDR3" then
if is_odd(v_delta_rl) xor is_odd(v_delta_wl) then
if is_aii(family_id) then
v_output.rdv_lat := v_output.rdv_lat - 1;
v_output.poa_lat := v_output.poa_lat - 1;
else
v_output.rdv_lat := v_output.rdv_lat + 1;
v_output.poa_lat := v_output.poa_lat + 1;
end if;
end if;
end if;
if is_odd(v_delta_rl) then
if v_delta_rl > 0 then -- add 1t
if v_output.codvw_phase < pll_steps then
v_output.codvw_phase := v_output.codvw_phase + pll_steps;
else
v_output.codvw_phase := v_output.codvw_phase - pll_steps;
v_output.rlat := v_output.rlat + 1;
end if;
else -- subtract 1t
if v_output.codvw_phase < pll_steps then
v_output.codvw_phase := v_output.codvw_phase + pll_steps;
v_output.rlat := v_output.rlat - 1;
else
v_output.codvw_phase := v_output.codvw_phase - pll_steps;
end if;
end if;
end if;
end if;
if v_half_cl = '1' and is_ciii(family_id) then
v_output.codvw_phase := v_output.codvw_phase - pll_steps/2;
end if;
end if;
return v_output;
end function;
--
END ddr_ctrl_ip_phy_alt_mem_phy_record_pkg;
--/* Legal Notice: (C)2006 Altera Corporation. All rights reserved. Your
-- use of Altera Corporation's design tools, logic functions and other
-- software and tools, and its AMPP partner logic functions, and any
-- output files any of the foregoing (including device programming or
-- simulation files), and any associated documentation or information are
-- expressly subject to the terms and conditions of the Altera Program
-- License Subscription Agreement or other applicable license agreement,
-- including, without limitation, that your use is for the sole purpose
-- of programming logic devices manufactured by Altera and sold by Altera
-- or its authorized distributors. Please refer to the applicable
-- agreement for further details. */
--
-- -----------------------------------------------------------------------------
-- Abstract : address and command package, shared between all variations of
-- the AFI sequencer
-- The address and command package (alt_mem_phy_addr_cmd_pkg) is
-- used to combine DRAM address and command signals in one record
-- and unify the functions operating on this record.
--
--
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
--
package ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg is
-- the following are bounds on the maximum range of address and command signals
constant c_max_addr_bits : natural := 15;
constant c_max_ba_bits : natural := 3;
constant c_max_ranks : natural := 16;
constant c_max_mode_reg_bit : natural := 12;
constant c_max_cmds_per_clk : natural := 4; -- quarter rate
-- a prefix for all report signals to identify phy and sequencer block
--
constant ac_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (addr_cmd_pkg) : ";
-- -------------------------------------------------------------
-- this record represents a single mem_clk command cycle
-- -------------------------------------------------------------
type t_addr_cmd is record
addr : natural range 0 to 2**c_max_addr_bits - 1;
ba : natural range 0 to 2**c_max_ba_bits - 1;
cas_n : boolean;
ras_n : boolean;
we_n : boolean;
cke : natural range 0 to 2**c_max_ranks - 1; -- bounded max of 8 ranks
cs_n : natural range 2**c_max_ranks - 1 downto 0; -- bounded max of 8 ranks
odt : natural range 0 to 2**c_max_ranks - 1; -- bounded max of 8 ranks
rst_n : boolean;
end record t_addr_cmd;
-- -------------------------------------------------------------
-- this vector is used to describe the fact that for slower clock domains
-- mutiple commands per clock can be issued and encapsulates all these options in a
-- type which can scale with rate
-- -------------------------------------------------------------
type t_addr_cmd_vector is array (natural range <>) of t_addr_cmd;
-- -------------------------------------------------------------
-- this record is used to define the memory interface type and allow packing and checking
-- (it should be used as a generic to a entity or from a poject level constant)
-- -------------------------------------------------------------
-- enumeration for mem_type
type t_mem_type is
(
DDR,
DDR2,
DDR3
);
-- memory interface configuration parameters
type t_addr_cmd_config_rec is record
num_addr_bits : natural;
num_ba_bits : natural;
num_cs_bits : natural;
num_ranks : natural;
cmds_per_clk : natural range 1 to c_max_cmds_per_clk; -- commands per clock cycle (equal to DWIDTH_RATIO/2)
mem_type : t_mem_type;
end record;
-- -----------------------------------
-- the following type is used to switch between signals
-- (for example, in the mask function below)
-- -----------------------------------
type t_addr_cmd_signals is
(
addr,
ba,
cas_n,
ras_n,
we_n,
cke,
cs_n,
odt,
rst_n
);
-- -----------------------------------
-- odt record
-- to hold the odt settings
-- (an odt_record) per rank (in odt_array)
-- -----------------------------------
type t_odt_record is record
write : natural;
read : natural;
end record t_odt_record;
type t_odt_array is array (natural range <>) of t_odt_record;
-- -------------------------------------------------------------
-- exposed functions and procedures
--
-- these functions cover the following memory types:
-- DDR3, DDR2, DDR
--
-- and the following operations:
-- MRS, REF, PRE, PREA, ACT,
-- WR, WRS8, WRS4, WRA, WRAS8, WRAS4,
-- RD, RDS8, RDS4, RDA, RDAS8, RDAS4,
--
-- for DDR3 on the fly burst length setting for reads/writes
-- is supported
-- -------------------------------------------------------------
function defaults ( config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd_vector;
function reset ( config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd_vector;
function int_pup_reset ( config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd_vector;
function deselect ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector
) return t_addr_cmd_vector;
function precharge_all ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function precharge_all ( config_rec : in t_addr_cmd_config_rec;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function precharge_bank ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1;
bank : in natural range 0 to 2**c_max_ba_bits -1
) return t_addr_cmd_vector;
function activate ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
bank : in natural range 0 to 2**c_max_ba_bits -1;
row : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks - 1
) return t_addr_cmd_vector;
function write ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
bank : in natural range 0 to 2**c_max_ba_bits -1;
col : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks - 1;
op_length : in natural range 1 to 8;
auto_prech : in boolean
) return t_addr_cmd_vector;
function read ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
bank : in natural range 0 to 2**c_max_ba_bits -1;
col : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks - 1;
op_length : in natural range 1 to 8;
auto_prech : in boolean
) return t_addr_cmd_vector;
function refresh ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function self_refresh_entry ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function load_mode ( config_rec : in t_addr_cmd_config_rec;
mode_register_num : in natural range 0 to 3;
mode_reg_value : in std_logic_vector(c_max_mode_reg_bit downto 0);
ranks : in natural range 0 to 2**c_max_ranks -1;
remap_addr_and_ba : in boolean
) return t_addr_cmd_vector;
function dll_reset ( config_rec : in t_addr_cmd_config_rec;
mode_reg_val : in std_logic_vector;
rank_num : in natural range 0 to 2**c_max_ranks - 1;
reorder_addr_bits : in boolean
) return t_addr_cmd_vector;
function enter_sr_pd_mode ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function maintain_pd_or_sr ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function exit_sr_pd_mode ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function ZQCS ( config_rec : in t_addr_cmd_config_rec;
rank : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function ZQCL ( config_rec : in t_addr_cmd_config_rec;
rank : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector;
function all_unreversed_ranks ( config_rec : in t_addr_cmd_config_rec;
record_to_mask : in t_addr_cmd_vector;
mem_ac_swapped_ranks : in std_logic_vector
) return t_addr_cmd_vector;
function all_reversed_ranks ( config_rec : in t_addr_cmd_config_rec;
record_to_mask : in t_addr_cmd_vector;
mem_ac_swapped_ranks : in std_logic_vector
) return t_addr_cmd_vector;
function program_rdimm_register ( config_rec : in t_addr_cmd_config_rec;
control_word_addr : in std_logic_vector(3 downto 0);
control_word_data : in std_logic_vector(3 downto 0)
) return t_addr_cmd_vector;
-- -------------------------------------------------------------
-- the following function sets up the odt settings
-- NOTES: currently only supports DDR/DDR2 memories
-- -------------------------------------------------------------
-- odt setting as implemented in the altera high-performance controller for ddr2 memories
function set_odt_values (ranks : natural;
ranks_per_slot : natural;
mem_type : in string
) return t_odt_array;
-- -------------------------------------------------------------
-- the following function enables assignment to the constant config_rec
-- -------------------------------------------------------------
function set_config_rec ( num_addr_bits : in natural;
num_ba_bits : in natural;
num_cs_bits : in natural;
num_ranks : in natural;
dwidth_ratio : in natural range 1 to c_max_cmds_per_clk;
mem_type : in string
) return t_addr_cmd_config_rec;
-- The non-levelled sequencer doesn't make a distinction between CS_WIDTH and NUM_RANKS. In this case,
-- just set the two to be the same.
function set_config_rec ( num_addr_bits : in natural;
num_ba_bits : in natural;
num_cs_bits : in natural;
dwidth_ratio : in natural range 1 to c_max_cmds_per_clk;
mem_type : in string
) return t_addr_cmd_config_rec;
-- -------------------------------------------------------------
-- the following function and procedure unpack address and
-- command signals from the t_addr_cmd_vector format
-- -------------------------------------------------------------
procedure unpack_addr_cmd_vector( addr_cmd_vector : in t_addr_cmd_vector;
config_rec : in t_addr_cmd_config_rec;
addr : out std_logic_vector;
ba : out std_logic_vector;
cas_n : out std_logic_vector;
ras_n : out std_logic_vector;
we_n : out std_logic_vector;
cke : out std_logic_vector;
cs_n : out std_logic_vector;
odt : out std_logic_vector;
rst_n : out std_logic_vector);
procedure unpack_addr_cmd_vector( config_rec : in t_addr_cmd_config_rec;
addr_cmd_vector : in t_addr_cmd_vector;
signal addr : out std_logic_vector;
signal ba : out std_logic_vector;
signal cas_n : out std_logic_vector;
signal ras_n : out std_logic_vector;
signal we_n : out std_logic_vector;
signal cke : out std_logic_vector;
signal cs_n : out std_logic_vector;
signal odt : out std_logic_vector;
signal rst_n : out std_logic_vector);
-- -------------------------------------------------------------
-- the following functions perform bit masking to 0 or 1 (as
-- specified by mask_value) to a chosen address/command signal (signal_name)
-- across all signal bits or to a selected bit (mask_bit)
-- -------------------------------------------------------------
-- mask all signal bits procedure
function mask ( config_rec : in t_addr_cmd_config_rec;
addr_cmd_vector : in t_addr_cmd_vector;
signal_name : in t_addr_cmd_signals;
mask_value : in std_logic) return t_addr_cmd_vector;
procedure mask( config_rec : in t_addr_cmd_config_rec;
signal addr_cmd_vector : inout t_addr_cmd_vector;
signal_name : in t_addr_cmd_signals;
mask_value : in std_logic);
-- mask signal bit (mask_bit) procedure
function mask ( config_rec : in t_addr_cmd_config_rec;
addr_cmd_vector : in t_addr_cmd_vector;
signal_name : in t_addr_cmd_signals;
mask_value : in std_logic;
mask_bit : in natural) return t_addr_cmd_vector;
--
end ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg;
--
package body ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg IS
-- -------------------------------------------------------------
-- Basic functions for a single command
-- -------------------------------------------------------------
-- -------------------------------------------------------------
-- defaults the bus no JEDEC abbreviated name
-- -------------------------------------------------------------
function defaults ( config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval.addr := 0;
v_retval.ba := 0;
v_retval.cas_n := false;
v_retval.ras_n := false;
v_retval.we_n := false;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1;
v_retval.odt := 0;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- resets the addr/cmd signal (Same as default with cke and rst_n 0 )
-- -------------------------------------------------------------
function reset ( config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval := defaults(config_rec);
v_retval.cke := 0;
if config_rec.mem_type = DDR3 then
v_retval.rst_n := true;
end if;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues deselect (command) JEDEC abbreviated name: DES
-- -------------------------------------------------------------
function deselect ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval := previous;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a precharge all command JEDEC abbreviated name: PREA
-- -------------------------------------------------------------
function precharge_all( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_addr : unsigned( c_max_addr_bits -1 downto 0);
begin
v_retval := previous;
v_addr := to_unsigned(previous.addr, c_max_addr_bits);
v_addr(10) := '1'; -- set AP bit high
v_retval.addr := to_integer(v_addr);
v_retval.ras_n := true;
v_retval.cas_n := false;
v_retval.we_n := true;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) - 1 - ranks;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- precharge (close) a bank JEDEC abbreviated name: PRE
-- -------------------------------------------------------------
function precharge_bank( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
ranks : in natural range 0 to 2**c_max_ranks -1;
bank : in natural range 0 to 2**c_max_ba_bits -1
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_addr : unsigned( c_max_addr_bits -1 downto 0);
begin
v_retval := previous;
v_addr := to_unsigned(previous.addr, c_max_addr_bits);
v_addr(10) := '0'; -- set AP bit low
v_retval.addr := to_integer(v_addr);
v_retval.ba := bank;
v_retval.ras_n := true;
v_retval.cas_n := false;
v_retval.we_n := true;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) - ranks;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- Issues a activate (open row) JEDEC abbreviated name: ACT
-- -------------------------------------------------------------
function activate (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
bank : in natural range 0 to 2**c_max_ba_bits - 1;
row : in natural range 0 to 2**c_max_addr_bits - 1;
ranks : in natural range 0 to 2**c_max_ranks - 1
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval.addr := row;
v_retval.ba := bank;
v_retval.cas_n := false;
v_retval.ras_n := true;
v_retval.we_n := false;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - ranks;
v_retval.odt := previous.odt;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a write command JEDEC abbreviated name:WR, WRA
-- WRS4, WRAS4
-- WRS8, WRAS8
-- has the ability to support:
-- DDR3:
-- BL4, BL8, fixed BL
-- Auto Precharge (AP)
-- DDR2, DDR:
-- fixed BL
-- Auto Precharge (AP)
-- -------------------------------------------------------------
function write (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
bank : in natural range 0 to 2**c_max_ba_bits -1;
col : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks -1;
op_length : in natural range 1 to 8;
auto_prech : in boolean
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_addr : unsigned(c_max_addr_bits-1 downto 0);
begin
-- calculate correct address signal
v_addr := to_unsigned(col, c_max_addr_bits);
-- note pin A10 is used for AP, therfore shift the value from A10 onto A11.
v_retval.addr := to_integer(v_addr(9 downto 0));
if v_addr(10) = '1' then
v_retval.addr := v_retval.addr + 2**11;
end if;
if auto_prech = true then -- set AP bit (A10)
v_retval.addr := v_retval.addr + 2**10;
end if;
if config_rec.mem_type = DDR3 then
if op_length = 8 then -- set BL_OTF sel bit (A12)
v_retval.addr := v_retval.addr + 2**12;
elsif op_length = 4 then
null;
else
report ac_report_prefix & "DDR3 DRAM only supports writes of burst length 4 or 8, the requested length was: " & integer'image(op_length) severity failure;
end if;
elsif config_rec.mem_type = DDR2 or config_rec.mem_type = DDR then
null;
else
report ac_report_prefix & "only DDR memories are supported for memory writes" severity failure;
end if;
-- set a/c signal assignments for write
v_retval.ba := bank;
v_retval.cas_n := true;
v_retval.ras_n := false;
v_retval.we_n := true;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - ranks;
v_retval.odt := ranks;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a read command JEDEC abbreviated name: RD, RDA
-- RDS4, RDAS4
-- RDS8, RDAS8
-- has the ability to support:
-- DDR3:
-- BL4, BL8, fixed BL
-- Auto Precharge (AP)
-- DDR2, DDR:
-- fixed BL, Auto Precharge (AP)
-- -------------------------------------------------------------
function read (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
bank : in natural range 0 to 2**c_max_ba_bits -1;
col : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks -1;
op_length : in natural range 1 to 8;
auto_prech : in boolean
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_addr : unsigned(c_max_addr_bits-1 downto 0);
begin
-- calculate correct address signal
v_addr := to_unsigned(col, c_max_addr_bits);
-- note pin A10 is used for AP, therfore shift the value from A10 onto A11.
v_retval.addr := to_integer(v_addr(9 downto 0));
if v_addr(10) = '1' then
v_retval.addr := v_retval.addr + 2**11;
end if;
if auto_prech = true then -- set AP bit (A10)
v_retval.addr := v_retval.addr + 2**10;
end if;
if config_rec.mem_type = DDR3 then
if op_length = 8 then -- set BL_OTF sel bit (A12)
v_retval.addr := v_retval.addr + 2**12;
elsif op_length = 4 then
null;
else
report ac_report_prefix & "DDR3 DRAM only supports reads of burst length 4 or 8" severity failure;
end if;
elsif config_rec.mem_type = DDR2 or config_rec.mem_type = DDR then
null;
else
report ac_report_prefix & "only DDR memories are supported for memory reads" severity failure;
end if;
-- set a/c signals for read command
v_retval.ba := bank;
v_retval.cas_n := true;
v_retval.ras_n := false;
v_retval.we_n := false;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - ranks;
v_retval.odt := 0;
v_retval.rst_n := false;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a refresh command JEDEC abbreviated name: REF
-- -------------------------------------------------------------
function refresh (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
ranks : in natural range 0 to 2**c_max_ranks -1
)
return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval := previous;
v_retval.cas_n := true;
v_retval.ras_n := true;
v_retval.we_n := false;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - ranks;
v_retval.rst_n := false;
-- addr, BA and ODT are don't care therfore leave as previous value
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a mode register set command JEDEC abbreviated name: MRS
-- -------------------------------------------------------------
function load_mode ( config_rec : in t_addr_cmd_config_rec;
mode_register_num : in natural range 0 to 3;
mode_reg_value : in std_logic_vector(c_max_mode_reg_bit downto 0);
ranks : in natural range 0 to 2**c_max_ranks -1;
remap_addr_and_ba : in boolean
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_addr_remap : unsigned(c_max_mode_reg_bit downto 0);
begin
v_retval.cas_n := true;
v_retval.ras_n := true;
v_retval.we_n := true;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - ranks;
v_retval.odt := 0;
v_retval.rst_n := false;
v_retval.ba := mode_register_num;
v_retval.addr := to_integer(unsigned(mode_reg_value));
if remap_addr_and_ba = true then
v_addr_remap := unsigned(mode_reg_value);
v_addr_remap(8 downto 7) := v_addr_remap(7) & v_addr_remap(8);
v_addr_remap(6 downto 5) := v_addr_remap(5) & v_addr_remap(6);
v_addr_remap(4 downto 3) := v_addr_remap(3) & v_addr_remap(4);
v_retval.addr := to_integer(v_addr_remap);
v_addr_remap := to_unsigned(mode_register_num, c_max_mode_reg_bit + 1);
v_addr_remap(1 downto 0) := v_addr_remap(0) & v_addr_remap(1);
v_retval.ba := to_integer(v_addr_remap);
end if;
return v_retval;
end function;
-- -------------------------------------------------------------
-- maintains SR or PD mode on slected ranks.
-- -------------------------------------------------------------
function maintain_pd_or_sr (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd;
ranks : in natural range 0 to 2**c_max_ranks -1
)
return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval := previous;
v_retval.cke := (2 ** config_rec.num_ranks) - 1 - ranks;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a ZQ cal (short) JEDEC abbreviated name: ZQCS
-- NOTE - can only be issued to a single RANK at a time.
-- -------------------------------------------------------------
function ZQCS (config_rec : in t_addr_cmd_config_rec;
rank : in natural range 0 to 2**c_max_ranks -1
)
return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval.cas_n := false;
v_retval.ras_n := false;
v_retval.we_n := true;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - rank;
v_retval.rst_n := false;
v_retval.addr := 0; -- clear bit 10
v_retval.ba := 0;
v_retval.odt := 0;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a ZQ cal (long) JEDEC abbreviated name: ZQCL
-- NOTE - can only be issued to a single RANK at a time.
-- -------------------------------------------------------------
function ZQCL (config_rec : in t_addr_cmd_config_rec;
rank : in natural range 0 to 2**c_max_ranks -1
)
return t_addr_cmd
is
variable v_retval : t_addr_cmd;
begin
v_retval.cas_n := false;
v_retval.ras_n := false;
v_retval.we_n := true;
v_retval.cke := (2 ** config_rec.num_ranks) -1;
v_retval.cs_n := (2 ** config_rec.num_cs_bits) -1 - rank;
v_retval.rst_n := false;
v_retval.addr := 1024; -- set bit 10
v_retval.ba := 0;
v_retval.odt := 0;
return v_retval;
end function;
-- -------------------------------------------------------------
-- functions acting on all clock cycles from whatever rate
-- in halfrate clock domain issues 1 command per clock
-- in quarter rate issues 1 command per clock
-- In the above cases they will be correctly aligned using the
-- ALTMEMPHY 2T and 4T SDC
-- -------------------------------------------------------------
-- -------------------------------------------------------------
-- defaults the bus no JEDEC abbreviated name
-- -------------------------------------------------------------
function defaults (config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_retval := (others => defaults(config_rec));
return v_retval;
end function;
-- -------------------------------------------------------------
-- resets the addr/cmd signal (same as default with cke 0)
-- -------------------------------------------------------------
function reset (config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_retval := (others => reset(config_rec));
return v_retval;
end function;
function int_pup_reset (config_rec : in t_addr_cmd_config_rec
) return t_addr_cmd_vector
is
variable v_addr_cmd_config_rst : t_addr_cmd_config_rec;
begin
v_addr_cmd_config_rst := config_rec;
v_addr_cmd_config_rst.num_ranks := c_max_ranks;
return reset(v_addr_cmd_config_rst);
end function;
-- -------------------------------------------------------------
-- issues a deselect command JEDEC abbreviated name: DES
-- -------------------------------------------------------------
function deselect ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector
) return t_addr_cmd_vector
is
alias a_previous : t_addr_cmd_vector(previous'range) is previous;
variable v_retval : t_addr_cmd_vector(a_previous'range);
begin
for rate in a_previous'range loop
v_retval(rate) := deselect(config_rec, a_previous(a_previous'high));
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a precharge all command JEDEC abbreviated name: PREA
-- -------------------------------------------------------------
function precharge_all ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
alias a_previous : t_addr_cmd_vector(previous'range) is previous;
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for rate in a_previous'range loop
v_retval(rate) := precharge_all(config_rec, previous(a_previous'high), ranks);
-- use dwidth_ratio/2 as in FR = 0 , HR = 1, and in future QR = 2 tCK setup + 1 tCK hold
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- precharge (close) a bank JEDEC abbreviated name: PRE
-- -------------------------------------------------------------
function precharge_bank ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1;
bank : in natural range 0 to 2**c_max_ba_bits -1
) return t_addr_cmd_vector
is
alias a_previous : t_addr_cmd_vector(previous'range) is previous;
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for rate in a_previous'range loop
v_retval(rate) := precharge_bank(config_rec, previous(a_previous'high), ranks, bank);
-- use dwidth_ratio/2 as in FR = 0 , HR = 1, and in future QR = 2 tCK setup + 1 tCK hold
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a activate (open row) JEDEC abbreviated name: ACT
-- -------------------------------------------------------------
function activate ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
bank : in natural range 0 to 2**c_max_ba_bits -1;
row : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks - 1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for rate in previous'range loop
v_retval(rate) := activate(config_rec, previous(previous'high), bank, row, ranks);
-- use dwidth_ratio/2 as in FR = 0 , HR = 1, and in future QR = 2 tCK setup + 1 tCK hold
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a write command JEDEC abbreviated name:WR, WRA
-- WRS4, WRAS4
-- WRS8, WRAS8
--
-- has the ability to support:
-- DDR3:
-- BL4, BL8, fixed BL
-- Auto Precharge (AP)
-- DDR2, DDR:
-- fixed BL
-- Auto Precharge (AP)
-- -------------------------------------------------------------
function write ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
bank : in natural range 0 to 2**c_max_ba_bits -1;
col : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks - 1;
op_length : in natural range 1 to 8;
auto_prech : in boolean
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for rate in previous'range loop
v_retval(rate) := write(config_rec, previous(previous'high), bank, col, ranks, op_length, auto_prech);
-- use dwidth_ratio/2 as in FR = 0 , HR = 1, and in future QR = 2 tCK setup + 1 tCK hold
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a read command JEDEC abbreviated name: RD, RDA
-- RDS4, RDAS4
-- RDS8, RDAS8
-- has the ability to support:
-- DDR3:
-- BL4, BL8, fixed BL
-- Auto Precharge (AP)
-- DDR2, DDR:
-- fixed BL, Auto Precharge (AP)
-- -------------------------------------------------------------
function read ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
bank : in natural range 0 to 2**c_max_ba_bits -1;
col : in natural range 0 to 2**c_max_addr_bits -1;
ranks : in natural range 0 to 2**c_max_ranks - 1;
op_length : in natural range 1 to 8;
auto_prech : in boolean
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for rate in previous'range loop
v_retval(rate) := read(config_rec, previous(previous'high), bank, col, ranks, op_length, auto_prech);
-- use dwidth_ratio/2 as in FR = 0 , HR = 1, and in future QR = 2 tCK setup + 1 tCK hold
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a refresh command JEDEC abbreviated name: REF
-- -------------------------------------------------------------
function refresh (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
)return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for rate in previous'range loop
v_retval(rate) := refresh(config_rec, previous(previous'high), ranks);
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a self_refresh_entry command JEDEC abbreviated name: SRE
-- -------------------------------------------------------------
function self_refresh_entry (config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
)return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_retval := enter_sr_pd_mode(config_rec, refresh(config_rec, previous, ranks), ranks);
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a self_refresh exit or power_down exit command
-- JEDEC abbreviated names: SRX, PDX
-- -------------------------------------------------------------
function exit_sr_pd_mode ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
variable v_mask_workings : std_logic_vector(config_rec.num_ranks -1 downto 0);
variable v_mask_workings_b : std_logic_vector(config_rec.num_ranks -1 downto 0);
begin
v_retval := maintain_pd_or_sr(config_rec, previous, ranks);
v_mask_workings_b := std_logic_vector(to_unsigned(ranks, config_rec.num_ranks));
for rate in 0 to config_rec.cmds_per_clk - 1 loop
v_mask_workings := std_logic_vector(to_unsigned(v_retval(rate).cke, config_rec.num_ranks));
for i in v_mask_workings_b'range loop
v_mask_workings(i) := v_mask_workings(i) or v_mask_workings_b(i);
end loop;
if rate >= config_rec.cmds_per_clk / 2 then -- maintain command but clear CS of subsequenct command slots
v_retval(rate).cke := to_integer(unsigned(v_mask_workings)); -- almost irrelevant. but optimises logic slightly for Quater rate
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- cause the selected ranks to enter Self-refresh or Powerdown mode
-- JEDEC abbreviated names: PDE,
-- SRE (if a refresh is concurrently issued to the same ranks)
-- -------------------------------------------------------------
function enter_sr_pd_mode ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
variable v_mask_workings : std_logic_vector(config_rec.num_ranks -1 downto 0);
variable v_mask_workings_b : std_logic_vector(config_rec.num_ranks -1 downto 0);
begin
v_retval := previous;
v_mask_workings_b := std_logic_vector(to_unsigned(ranks, config_rec.num_ranks));
for rate in 0 to config_rec.cmds_per_clk - 1 loop
if rate >= config_rec.cmds_per_clk / 2 then -- maintain command but clear CS of subsequenct command slots
v_mask_workings := std_logic_vector(to_unsigned(v_retval(rate).cke, config_rec.num_ranks));
for i in v_mask_workings_b'range loop
v_mask_workings(i) := v_mask_workings(i) and not v_mask_workings_b(i);
end loop;
v_retval(rate).cke := to_integer(unsigned(v_mask_workings)); -- almost irrelevant. but optimises logic slightly for Quater rate
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- Issues a mode register set command JEDEC abbreviated name: MRS
-- -------------------------------------------------------------
function load_mode ( config_rec : in t_addr_cmd_config_rec;
mode_register_num : in natural range 0 to 3;
mode_reg_value : in std_logic_vector(c_max_mode_reg_bit downto 0);
ranks : in natural range 0 to 2**c_max_ranks -1;
remap_addr_and_ba : in boolean
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_retval := (others => load_mode(config_rec, mode_register_num, mode_reg_value, ranks, remap_addr_and_ba));
for rate in v_retval'range loop
if rate /= config_rec.cmds_per_clk/2 then
v_retval(rate).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- maintains SR or PD mode on slected ranks.
-- NOTE: does not affect previous command
-- -------------------------------------------------------------
function maintain_pd_or_sr ( config_rec : in t_addr_cmd_config_rec;
previous : in t_addr_cmd_vector;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
for command in v_retval'range loop
v_retval(command) := maintain_pd_or_sr(config_rec, previous(command), ranks);
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a ZQ cal (long) JEDEC abbreviated name: ZQCL
-- NOTE - can only be issued to a single RANK ata a time.
-- -------------------------------------------------------------
function ZQCL ( config_rec : in t_addr_cmd_config_rec;
rank : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1) := defaults(config_rec);
begin
for command in v_retval'range loop
v_retval(command) := ZQCL(config_rec, rank);
if command * 2 /= config_rec.cmds_per_clk then
v_retval(command).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- -------------------------------------------------------------
-- issues a ZQ cal (short) JEDEC abbreviated name: ZQCS
-- NOTE - can only be issued to a single RANK ata a time.
-- -------------------------------------------------------------
function ZQCS ( config_rec : in t_addr_cmd_config_rec;
rank : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1) := defaults(config_rec);
begin
for command in v_retval'range loop
v_retval(command) := ZQCS(config_rec, rank);
if command * 2 /= config_rec.cmds_per_clk then
v_retval(command).cs_n := (2 ** config_rec.num_cs_bits) -1;
end if;
end loop;
return v_retval;
end function;
-- ----------------------
-- Additional Rank manipulation functions (main use DDR3)
-- -------------
-- -----------------------------------
-- set the chip select for a group of ranks
-- -----------------------------------
function all_reversed_ranks ( config_rec : in t_addr_cmd_config_rec;
record_to_mask : in t_addr_cmd;
mem_ac_swapped_ranks : in std_logic_vector
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_mask_workings : std_logic_vector(config_rec.num_cs_bits-1 downto 0);
begin
v_retval := record_to_mask;
v_mask_workings := std_logic_vector(to_unsigned(record_to_mask.cs_n, config_rec.num_cs_bits));
for i in mem_ac_swapped_ranks'range loop
v_mask_workings(i):= v_mask_workings(i) or not mem_ac_swapped_ranks(i);
end loop;
v_retval.cs_n := to_integer(unsigned(v_mask_workings));
return v_retval;
end function;
-- -----------------------------------
-- inverse of the above
-- -----------------------------------
function all_unreversed_ranks ( config_rec : in t_addr_cmd_config_rec;
record_to_mask : in t_addr_cmd;
mem_ac_swapped_ranks : in std_logic_vector
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable v_mask_workings : std_logic_vector(config_rec.num_cs_bits-1 downto 0);
begin
v_retval := record_to_mask;
v_mask_workings := std_logic_vector(to_unsigned(record_to_mask.cs_n, config_rec.num_cs_bits));
for i in mem_ac_swapped_ranks'range loop
v_mask_workings(i):= v_mask_workings(i) or mem_ac_swapped_ranks(i);
end loop;
v_retval.cs_n := to_integer(unsigned(v_mask_workings));
return v_retval;
end function;
-- -----------------------------------
-- set the chip select for a group of ranks in a way which handles diffrent rates
-- -----------------------------------
function all_unreversed_ranks ( config_rec : in t_addr_cmd_config_rec;
record_to_mask : in t_addr_cmd_vector;
mem_ac_swapped_ranks : in std_logic_vector
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1) := defaults(config_rec);
begin
for command in record_to_mask'range loop
v_retval(command) := all_unreversed_ranks(config_rec, record_to_mask(command), mem_ac_swapped_ranks);
end loop;
return v_retval;
end function;
-- -----------------------------------
-- inverse of the above handling ranks
-- -----------------------------------
function all_reversed_ranks ( config_rec : in t_addr_cmd_config_rec;
record_to_mask : in t_addr_cmd_vector;
mem_ac_swapped_ranks : in std_logic_vector
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1) := defaults(config_rec);
begin
for command in record_to_mask'range loop
v_retval(command) := all_reversed_ranks(config_rec, record_to_mask(command), mem_ac_swapped_ranks);
end loop;
return v_retval;
end function;
-- --------------------------------------------------
-- Program a single control word onto RDIMM.
-- This is accomplished rather goofily by asserting all chip selects
-- and then writing out both the addr/data of the word onto the addr/ba bus
-- --------------------------------------------------
function program_rdimm_register ( config_rec : in t_addr_cmd_config_rec;
control_word_addr : in std_logic_vector(3 downto 0);
control_word_data : in std_logic_vector(3 downto 0)
) return t_addr_cmd
is
variable v_retval : t_addr_cmd;
variable ba : std_logic_vector(2 downto 0);
variable addr : std_logic_vector(4 downto 0);
begin
v_retval := defaults(config_rec);
v_retval.cs_n := 0;
ba := control_word_addr(3) & control_word_data(3) & control_word_data(2);
v_retval.ba := to_integer(unsigned(ba));
addr := control_word_data(1) & control_word_data(0) & control_word_addr(2) &
control_word_addr(1) & control_word_addr(0);
v_retval.addr := to_integer(unsigned(addr));
return v_retval;
end function;
function program_rdimm_register ( config_rec : in t_addr_cmd_config_rec;
control_word_addr : in std_logic_vector(3 downto 0);
control_word_data : in std_logic_vector(3 downto 0)
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_retval := (others => program_rdimm_register(config_rec, control_word_addr, control_word_data));
return v_retval;
end function;
-- --------------------------------------------------
-- overloaded functions, to simplify use, or provide simplified functionality
-- --------------------------------------------------
-- ----------------------------------------------------
-- Precharge all, defaulting all bits.
-- ----------------------------------------------------
function precharge_all ( config_rec : in t_addr_cmd_config_rec;
ranks : in natural range 0 to 2**c_max_ranks -1
) return t_addr_cmd_vector
is
variable v_retval : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1) := defaults(config_rec);
begin
v_retval := precharge_all(config_rec, v_retval, ranks);
return v_retval;
end function;
-- ----------------------------------------------------
-- perform DLL reset through mode registers
-- ----------------------------------------------------
function dll_reset ( config_rec : in t_addr_cmd_config_rec;
mode_reg_val : in std_logic_vector;
rank_num : in natural range 0 to 2**c_max_ranks - 1;
reorder_addr_bits : in boolean
) return t_addr_cmd_vector is
variable int_mode_reg : std_logic_vector(mode_reg_val'range);
variable output : t_addr_cmd_vector(0 to config_rec.cmds_per_clk - 1);
begin
int_mode_reg := mode_reg_val;
int_mode_reg(8) := '1'; -- set DLL reset bit.
output := load_mode(config_rec, 0, int_mode_reg, rank_num, reorder_addr_bits);
return output;
end function;
-- -------------------------------------------------------------
-- package configuration functions
-- -------------------------------------------------------------
-- -------------------------------------------------------------
-- the following function sets up the odt settings
-- NOTES: supports DDR/DDR2/DDR3 SDRAM memories
-- -------------------------------------------------------------
function set_odt_values (ranks : natural;
ranks_per_slot : natural;
mem_type : in string
) return t_odt_array is
variable v_num_slots : natural;
variable v_cs : natural range 0 to ranks-1;
variable v_odt_values : t_odt_array(0 to ranks-1);
variable v_cs_addr : unsigned(ranks-1 downto 0);
begin
if mem_type = "DDR" then
-- ODT not supported for DDR memory so set default off
for v_cs in 0 to ranks-1 loop
v_odt_values(v_cs).write := 0;
v_odt_values(v_cs).read := 0;
end loop;
elsif mem_type = "DDR2" then
-- odt setting as implemented in the altera high-performance controller for ddr2 memories
assert (ranks rem ranks_per_slot = 0) report ac_report_prefix & "number of ranks per slot must be a multiple of number of ranks" severity failure;
v_num_slots := ranks/ranks_per_slot;
if v_num_slots = 1 then
-- special condition for 1 slot (i.e. DIMM) (2^n, n=0,1,2,... ranks only)
-- set odt on one chip for writes and no odt for reads
for v_cs in 0 to ranks-1 loop
v_odt_values(v_cs).write := 2**v_cs; -- on on the rank being written to
v_odt_values(v_cs).read := 0;
end loop;
else
-- if > 1 slot, set 1 odt enable on neighbouring slot for read and write
-- as an example consider the below for 4 slots with 2 ranks per slot
-- access to CS[0] or CS[1], enable ODT[2] or ODT[3]
-- access to CS[2] or CS[3], enable ODT[0] or ODT[1]
-- access to CS[4] or CS[5], enable ODT[6] or ODT[7]
-- access to CS[6] or CS[7], enable ODT[4] or ODT[5]
-- the logic below implements the above for varying ranks and ranks_per slot
-- under the condition that ranks/ranks_per_slot is integer
for v_cs in 0 to ranks-1 loop
v_cs_addr := to_unsigned(v_cs, ranks);
v_cs_addr(ranks_per_slot-1) := not v_cs_addr(ranks_per_slot-1);
v_odt_values(v_cs).write := 2**to_integer(v_cs_addr);
v_odt_values(v_cs).read := v_odt_values(v_cs).write;
end loop;
end if;
elsif mem_type = "DDR3" then
assert (ranks rem ranks_per_slot = 0) report ac_report_prefix & "number of ranks per slot must be a multiple of number of ranks" severity failure;
v_num_slots := ranks/ranks_per_slot;
if v_num_slots = 1 then
-- special condition for 1 slot (i.e. DIMM) (2^n, n=0,1,2,... ranks only)
-- set odt on one chip for writes and no odt for reads
for v_cs in 0 to ranks-1 loop
v_odt_values(v_cs).write := 2**v_cs; -- on on the rank being written to
v_odt_values(v_cs).read := 0;
end loop;
else
-- if > 1 slot, set 1 odt enable on neighbouring slot for read and write
-- as an example consider the below for 4 slots with 2 ranks per slot
-- access to CS[0] or CS[1], enable ODT[2] or ODT[3]
-- access to CS[2] or CS[3], enable ODT[0] or ODT[1]
-- access to CS[4] or CS[5], enable ODT[6] or ODT[7]
-- access to CS[6] or CS[7], enable ODT[4] or ODT[5]
-- the logic below implements the above for varying ranks and ranks_per slot
-- under the condition that ranks/ranks_per_slot is integer
for v_cs in 0 to ranks-1 loop
v_cs_addr := to_unsigned(v_cs, ranks);
v_cs_addr(ranks_per_slot-1) := not v_cs_addr(ranks_per_slot-1);
v_odt_values(v_cs).write := 2**to_integer(v_cs_addr) + 2**(v_cs); -- turn on a neighbouring slots cs and current rank being written to
v_odt_values(v_cs).read := 2**to_integer(v_cs_addr);
end loop;
end if;
else
report ac_report_prefix & "unknown mem_type specified in the set_odt_values function in addr_cmd_pkg package" severity failure;
end if;
return v_odt_values;
end function;
-- -----------------------------------------------------------
-- set constant values to config_rec
-- ----------------------------------------------------------
function set_config_rec ( num_addr_bits : in natural;
num_ba_bits : in natural;
num_cs_bits : in natural;
num_ranks : in natural;
dwidth_ratio : in natural range 1 to c_max_cmds_per_clk;
mem_type : in string
) return t_addr_cmd_config_rec
is
variable v_config_rec : t_addr_cmd_config_rec;
begin
v_config_rec.num_addr_bits := num_addr_bits;
v_config_rec.num_ba_bits := num_ba_bits;
v_config_rec.num_cs_bits := num_cs_bits;
v_config_rec.num_ranks := num_ranks;
v_config_rec.cmds_per_clk := dwidth_ratio/2;
if mem_type = "DDR" then
v_config_rec.mem_type := DDR;
elsif mem_type = "DDR2" then
v_config_rec.mem_type := DDR2;
elsif mem_type = "DDR3" then
v_config_rec.mem_type := DDR3;
else
report ac_report_prefix & "unknown mem_type specified in the set_config_rec function in addr_cmd_pkg package" severity failure;
end if;
return v_config_rec;
end function;
-- The non-levelled sequencer doesn't make a distinction between CS_WIDTH and NUM_RANKS. In this case,
-- just set the two to be the same.
function set_config_rec ( num_addr_bits : in natural;
num_ba_bits : in natural;
num_cs_bits : in natural;
dwidth_ratio : in natural range 1 to c_max_cmds_per_clk;
mem_type : in string
) return t_addr_cmd_config_rec
is
begin
return set_config_rec(num_addr_bits, num_ba_bits, num_cs_bits, num_cs_bits, dwidth_ratio, mem_type);
end function;
-- -----------------------------------------------------------
-- unpack and pack address and command signals from and to t_addr_cmd_vector
-- -----------------------------------------------------------
-- -------------------------------------------------------------
-- convert from t_addr_cmd_vector to expanded addr/cmd signals
-- -------------------------------------------------------------
procedure unpack_addr_cmd_vector( addr_cmd_vector : in t_addr_cmd_vector;
config_rec : in t_addr_cmd_config_rec;
addr : out std_logic_vector;
ba : out std_logic_vector;
cas_n : out std_logic_vector;
ras_n : out std_logic_vector;
we_n : out std_logic_vector;
cke : out std_logic_vector;
cs_n : out std_logic_vector;
odt : out std_logic_vector;
rst_n : out std_logic_vector
)
is
variable v_mem_if_ranks : natural range 0 to 2**c_max_ranks - 1;
variable v_vec_len : natural range 1 to 4;
variable v_addr : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_addr_bits - 1 downto 0);
variable v_ba : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_ba_bits - 1 downto 0);
variable v_odt : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_ranks - 1 downto 0);
variable v_cs_n : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_cs_bits - 1 downto 0);
variable v_cke : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_ranks - 1 downto 0);
variable v_cas_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
variable v_ras_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
variable v_we_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
variable v_rst_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
begin
v_vec_len := config_rec.cmds_per_clk;
v_mem_if_ranks := config_rec.num_ranks;
for v_i in 0 to v_vec_len-1 loop
assert addr_cmd_vector(v_i).addr < 2**config_rec.num_addr_bits report ac_report_prefix &
"value of addr exceeds range of number of address bits in unpack_addr_cmd_vector procedure" severity failure;
assert addr_cmd_vector(v_i).ba < 2**config_rec.num_ba_bits report ac_report_prefix &
"value of ba exceeds range of number of bank address bits in unpack_addr_cmd_vector procedure" severity failure;
assert addr_cmd_vector(v_i).odt < 2**v_mem_if_ranks report ac_report_prefix &
"value of odt exceeds range of number of ranks in unpack_addr_cmd_vector procedure" severity failure;
assert addr_cmd_vector(v_i).cs_n < 2**config_rec.num_cs_bits report ac_report_prefix &
"value of cs_n exceeds range of number of ranks in unpack_addr_cmd_vector procedure" severity failure;
assert addr_cmd_vector(v_i).cke < 2**v_mem_if_ranks report ac_report_prefix &
"value of cke exceeds range of number of ranks in unpack_addr_cmd_vector procedure" severity failure;
v_addr((v_i+1)*config_rec.num_addr_bits - 1 downto v_i*config_rec.num_addr_bits) := std_logic_vector(to_unsigned(addr_cmd_vector(v_i).addr,config_rec.num_addr_bits));
v_ba((v_i+1)*config_rec.num_ba_bits - 1 downto v_i*config_rec.num_ba_bits) := std_logic_vector(to_unsigned(addr_cmd_vector(v_i).ba,config_rec.num_ba_bits));
v_cke((v_i+1)*v_mem_if_ranks - 1 downto v_i*v_mem_if_ranks) := std_logic_vector(to_unsigned(addr_cmd_vector(v_i).cke,v_mem_if_ranks));
v_cs_n((v_i+1)*config_rec.num_cs_bits - 1 downto v_i*config_rec.num_cs_bits) := std_logic_vector(to_unsigned(addr_cmd_vector(v_i).cs_n,config_rec.num_cs_bits));
v_odt((v_i+1)*v_mem_if_ranks - 1 downto v_i*v_mem_if_ranks) := std_logic_vector(to_unsigned(addr_cmd_vector(v_i).odt,v_mem_if_ranks));
if (addr_cmd_vector(v_i).cas_n) then v_cas_n(v_i) := '0'; else v_cas_n(v_i) := '1'; end if;
if (addr_cmd_vector(v_i).ras_n) then v_ras_n(v_i) := '0'; else v_ras_n(v_i) := '1'; end if;
if (addr_cmd_vector(v_i).we_n) then v_we_n(v_i) := '0'; else v_we_n(v_i) := '1'; end if;
if (addr_cmd_vector(v_i).rst_n) then v_rst_n(v_i) := '0'; else v_rst_n(v_i) := '1'; end if;
end loop;
addr := v_addr;
ba := v_ba;
cke := v_cke;
cs_n := v_cs_n;
odt := v_odt;
cas_n := v_cas_n;
ras_n := v_ras_n;
we_n := v_we_n;
rst_n := v_rst_n;
end procedure;
procedure unpack_addr_cmd_vector( config_rec : in t_addr_cmd_config_rec;
addr_cmd_vector : in t_addr_cmd_vector;
signal addr : out std_logic_vector;
signal ba : out std_logic_vector;
signal cas_n : out std_logic_vector;
signal ras_n : out std_logic_vector;
signal we_n : out std_logic_vector;
signal cke : out std_logic_vector;
signal cs_n : out std_logic_vector;
signal odt : out std_logic_vector;
signal rst_n : out std_logic_vector
)
is
variable v_mem_if_ranks : natural range 0 to 2**c_max_ranks - 1;
variable v_vec_len : natural range 1 to 4;
variable v_seq_ac_addr : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_addr_bits - 1 downto 0);
variable v_seq_ac_ba : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_ba_bits - 1 downto 0);
variable v_seq_ac_cas_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
variable v_seq_ac_ras_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
variable v_seq_ac_we_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
variable v_seq_ac_cke : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_ranks - 1 downto 0);
variable v_seq_ac_cs_n : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_cs_bits - 1 downto 0);
variable v_seq_ac_odt : std_logic_vector(config_rec.cmds_per_clk * config_rec.num_ranks - 1 downto 0);
variable v_seq_ac_rst_n : std_logic_vector(config_rec.cmds_per_clk - 1 downto 0);
begin
unpack_addr_cmd_vector (
addr_cmd_vector,
config_rec,
v_seq_ac_addr,
v_seq_ac_ba,
v_seq_ac_cas_n,
v_seq_ac_ras_n,
v_seq_ac_we_n,
v_seq_ac_cke,
v_seq_ac_cs_n,
v_seq_ac_odt,
v_seq_ac_rst_n);
addr <= v_seq_ac_addr;
ba <= v_seq_ac_ba;
cas_n <= v_seq_ac_cas_n;
ras_n <= v_seq_ac_ras_n;
we_n <= v_seq_ac_we_n;
cke <= v_seq_ac_cke;
cs_n <= v_seq_ac_cs_n;
odt <= v_seq_ac_odt;
rst_n <= v_seq_ac_rst_n;
end procedure;
-- -----------------------------------------------------------
-- function to mask each bit of signal signal_name in addr_cmd_
-- -----------------------------------------------------------
-- -----------------------------------------------------------
-- function to mask each bit of signal signal_name in addr_cmd_vector with mask_value
-- -----------------------------------------------------------
function mask ( config_rec : in t_addr_cmd_config_rec;
addr_cmd_vector : in t_addr_cmd_vector;
signal_name : in t_addr_cmd_signals;
mask_value : in std_logic
) return t_addr_cmd_vector
is
variable v_i : integer;
variable v_addr_cmd_vector : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_addr_cmd_vector := addr_cmd_vector;
for v_i in 0 to (config_rec.cmds_per_clk)-1 loop
case signal_name is
when addr => if (mask_value = '0') then v_addr_cmd_vector(v_i).addr := 0; else v_addr_cmd_vector(v_i).addr := (2 ** config_rec.num_addr_bits) - 1; end if;
when ba => if (mask_value = '0') then v_addr_cmd_vector(v_i).ba := 0; else v_addr_cmd_vector(v_i).ba := (2 ** config_rec.num_ba_bits) - 1; end if;
when cas_n => if (mask_value = '0') then v_addr_cmd_vector(v_i).cas_n := true; else v_addr_cmd_vector(v_i).cas_n := false; end if;
when ras_n => if (mask_value = '0') then v_addr_cmd_vector(v_i).ras_n := true; else v_addr_cmd_vector(v_i).ras_n := false; end if;
when we_n => if (mask_value = '0') then v_addr_cmd_vector(v_i).we_n := true; else v_addr_cmd_vector(v_i).we_n := false; end if;
when cke => if (mask_value = '0') then v_addr_cmd_vector(v_i).cke := 0; else v_addr_cmd_vector(v_i).cke := (2**config_rec.num_ranks) -1; end if;
when cs_n => if (mask_value = '0') then v_addr_cmd_vector(v_i).cs_n := 0; else v_addr_cmd_vector(v_i).cs_n := (2**config_rec.num_cs_bits) -1; end if;
when odt => if (mask_value = '0') then v_addr_cmd_vector(v_i).odt := 0; else v_addr_cmd_vector(v_i).odt := (2**config_rec.num_ranks) -1; end if;
when rst_n => if (mask_value = '0') then v_addr_cmd_vector(v_i).rst_n := true; else v_addr_cmd_vector(v_i).rst_n := false; end if;
when others => report ac_report_prefix & "bit masking not supported for the given signal name" severity failure;
end case;
end loop;
return v_addr_cmd_vector;
end function;
-- -----------------------------------------------------------
-- procedure to mask each bit of signal signal_name in addr_cmd_vector with mask_value
-- -----------------------------------------------------------
procedure mask( config_rec : in t_addr_cmd_config_rec;
signal addr_cmd_vector : inout t_addr_cmd_vector;
signal_name : in t_addr_cmd_signals;
mask_value : in std_logic
)
is
variable v_i : integer;
begin
for v_i in 0 to (config_rec.cmds_per_clk)-1 loop
case signal_name is
when addr => if (mask_value = '0') then addr_cmd_vector(v_i).addr <= 0; else addr_cmd_vector(v_i).addr <= (2 ** config_rec.num_addr_bits) - 1; end if;
when ba => if (mask_value = '0') then addr_cmd_vector(v_i).ba <= 0; else addr_cmd_vector(v_i).ba <= (2 ** config_rec.num_ba_bits) - 1; end if;
when cas_n => if (mask_value = '0') then addr_cmd_vector(v_i).cas_n <= true; else addr_cmd_vector(v_i).cas_n <= false; end if;
when ras_n => if (mask_value = '0') then addr_cmd_vector(v_i).ras_n <= true; else addr_cmd_vector(v_i).ras_n <= false; end if;
when we_n => if (mask_value = '0') then addr_cmd_vector(v_i).we_n <= true; else addr_cmd_vector(v_i).we_n <= false; end if;
when cke => if (mask_value = '0') then addr_cmd_vector(v_i).cke <= 0; else addr_cmd_vector(v_i).cke <= (2**config_rec.num_ranks) -1; end if;
when cs_n => if (mask_value = '0') then addr_cmd_vector(v_i).cs_n <= 0; else addr_cmd_vector(v_i).cs_n <= (2**config_rec.num_cs_bits) -1; end if;
when odt => if (mask_value = '0') then addr_cmd_vector(v_i).odt <= 0; else addr_cmd_vector(v_i).odt <= (2**config_rec.num_ranks) -1; end if;
when rst_n => if (mask_value = '0') then addr_cmd_vector(v_i).rst_n <= true; else addr_cmd_vector(v_i).rst_n <= false; end if;
when others => report ac_report_prefix & "masking not supported for the given signal name" severity failure;
end case;
end loop;
end procedure;
-- -----------------------------------------------------------
-- function to mask a given bit (mask_bit) of signal signal_name in addr_cmd_vector with mask_value
-- -----------------------------------------------------------
function mask ( config_rec : in t_addr_cmd_config_rec;
addr_cmd_vector : in t_addr_cmd_vector;
signal_name : in t_addr_cmd_signals;
mask_value : in std_logic;
mask_bit : in natural
) return t_addr_cmd_vector
is
variable v_i : integer;
variable v_addr : std_logic_vector(config_rec.num_addr_bits-1 downto 0); -- v_addr is bit vector of address
variable v_ba : std_logic_vector(config_rec.num_ba_bits-1 downto 0); -- v_addr is bit vector of bank address
variable v_vec_len : natural range 0 to 4;
variable v_addr_cmd_vector : t_addr_cmd_vector(0 to config_rec.cmds_per_clk -1);
begin
v_addr_cmd_vector := addr_cmd_vector;
v_vec_len := config_rec.cmds_per_clk;
for v_i in 0 to v_vec_len-1 loop
case signal_name is
when addr =>
v_addr := std_logic_vector(to_unsigned(v_addr_cmd_vector(v_i).addr,v_addr'length));
v_addr(mask_bit) := mask_value;
v_addr_cmd_vector(v_i).addr := to_integer(unsigned(v_addr));
when ba =>
v_ba := std_logic_vector(to_unsigned(v_addr_cmd_vector(v_i).ba,v_ba'length));
v_ba(mask_bit) := mask_value;
v_addr_cmd_vector(v_i).ba := to_integer(unsigned(v_ba));
when others =>
report ac_report_prefix & "bit masking not supported for the given signal name" severity failure;
end case;
end loop;
return v_addr_cmd_vector;
end function;
--
end ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg;
--
-- -----------------------------------------------------------------------------
-- Abstract : iram addressing package for the non-levelling AFI PHY sequencer
-- The iram address package (alt_mem_phy_iram_addr_pkg) is
-- used to define the base addresses used for iram writes
-- during calibration.
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
--
package ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg IS
constant c_ihi_size : natural := 8;
type t_base_hdr_addresses is record
base_hdr : natural;
rrp : natural;
safe_dummy : natural;
required_addr_bits : natural;
end record;
function defaults return t_base_hdr_addresses;
function rrp_pll_phase_mult (dwidth_ratio : in natural;
dqs_capture : in natural
)
return natural;
function iram_wd_for_full_rrp ( dwidth_ratio : in natural;
pll_phases : in natural;
dq_pins : in natural;
dqs_capture : in natural
)
return natural;
function iram_wd_for_one_pin_rrp ( dwidth_ratio : in natural;
pll_phases : in natural;
dq_pins : in natural;
dqs_capture : in natural
)
return natural;
function calc_iram_addresses ( dwidth_ratio : in natural;
pll_phases : in natural;
dq_pins : in natural;
num_ranks : in natural;
dqs_capture : in natural
)
return t_base_hdr_addresses;
--
end ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg;
--
package body ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg IS
-- set some safe default values
function defaults return t_base_hdr_addresses is
variable temp : t_base_hdr_addresses;
begin
temp.base_hdr := 0;
temp.rrp := 0;
temp.safe_dummy := 0;
temp.required_addr_bits := 1;
return temp;
end function;
-- this function determines now many times the PLL phases are swept through per pin
-- i.e. an n * 360 degree phase sweep
function rrp_pll_phase_mult (dwidth_ratio : in natural;
dqs_capture : in natural
)
return natural
is
variable v_output : natural;
begin
if dwidth_ratio = 2 and dqs_capture = 1 then
v_output := 2; -- if dqs_capture then a 720 degree sweep needed in FR
else
v_output := (dwidth_ratio/2);
end if;
return v_output;
end function;
-- function to calculate how many words are required for a rrp sweep over all pins
function iram_wd_for_full_rrp ( dwidth_ratio : in natural;
pll_phases : in natural;
dq_pins : in natural;
dqs_capture : in natural
)
return natural
is
variable v_output : natural;
variable v_phase_mul : natural;
begin
-- determine the n * 360 degrees of sweep required
v_phase_mul := rrp_pll_phase_mult(dwidth_ratio, dqs_capture);
-- calculate output size
v_output := dq_pins * (((v_phase_mul * pll_phases) + 31) / 32);
return v_output;
end function;
-- function to calculate how many words are required for a rrp sweep over all pins
function iram_wd_for_one_pin_rrp ( dwidth_ratio : in natural;
pll_phases : in natural;
dq_pins : in natural;
dqs_capture : in natural
)
return natural
is
variable v_output : natural;
variable v_phase_mul : natural;
begin
-- determine the n * 360 degrees of sweep required
v_phase_mul := rrp_pll_phase_mult(dwidth_ratio, dqs_capture);
-- calculate output size
v_output := ((v_phase_mul * pll_phases) + 31) / 32;
return v_output;
end function;
-- return iram addresses
function calc_iram_addresses ( dwidth_ratio : in natural;
pll_phases : in natural;
dq_pins : in natural;
num_ranks : in natural;
dqs_capture : in natural
)
return t_base_hdr_addresses
is
variable working : t_base_hdr_addresses;
variable temp : natural;
variable v_required_words : natural;
begin
working.base_hdr := 0;
working.rrp := working.base_hdr + c_ihi_size;
-- work out required number of address bits
-- + for 1 full rrp calibration
v_required_words := iram_wd_for_full_rrp(dwidth_ratio, pll_phases, dq_pins, dqs_capture) + 2; -- +2 for header + footer
-- * loop per cs
v_required_words := v_required_words * num_ranks;
-- + for 1 rrp_seek result
v_required_words := v_required_words + 3; -- 1 header, 1 word result, 1 footer
-- + 2 mtp_almt passes
v_required_words := v_required_words + 2 * (iram_wd_for_one_pin_rrp(dwidth_ratio, pll_phases, dq_pins, dqs_capture) + 2);
-- + for 2 read_mtp result calculation
v_required_words := v_required_words + 3*2; -- 1 header, 1 word result, 1 footer
-- * possible dwidth_ratio/2 iterations for different ac_nt settings
v_required_words := v_required_words * (dwidth_ratio / 2);
working.safe_dummy := working.rrp + v_required_words;
temp := working.safe_dummy;
working.required_addr_bits := 0;
while (temp >= 1) loop
working.required_addr_bits := working.required_addr_bits + 1;
temp := temp /2;
end loop;
return working;
end function calc_iram_addresses;
--
END ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg;
--
-- -----------------------------------------------------------------------------
-- Abstract : register package for the non-levelling AFI PHY sequencer
-- The registers package (alt_mem_phy_regs_pkg) is used to
-- combine the definition of the registers for the mmi status
-- registers and functions/procedures applied to the registers
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
--
package ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg is
-- a prefix for all report signals to identify phy and sequencer block
--
constant regs_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (register package) : ";
-- ---------------------------------------------------------------
-- register declarations with associated functions of:
-- default - assign default values
-- write - write data into the reg (from avalon i/f)
-- read - read data from the reg (sent to the avalon i/f)
-- write_clear - clear reg to all zeros
-- ---------------------------------------------------------------
-- TYPE DECLARATIONS
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Read Only Registers
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- cal_status
type t_cal_status is record
iram_addr_width : std_logic_vector(3 downto 0);
out_of_mem : std_logic;
contested_access : std_logic;
cal_fail : std_logic;
cal_success : std_logic;
ctrl_err_code : std_logic_vector(7 downto 0);
trefi_failure : std_logic;
int_ac_1t : std_logic;
dqs_capture : std_logic;
iram_present : std_logic;
active_block : std_logic_vector(3 downto 0);
current_stage : std_logic_vector(7 downto 0);
end record;
-- codvw status
type t_codvw_status is record
cal_codvw_phase : std_logic_vector(7 downto 0);
cal_codvw_size : std_logic_vector(7 downto 0);
codvw_trk_shift : std_logic_vector(11 downto 0);
codvw_grt_one_dvw : std_logic;
end record t_codvw_status;
-- test status report
type t_test_status is record
ack_seen : std_logic_vector(c_hl_ccs_num_stages-1 downto 0);
pll_mmi_err : std_logic_vector(1 downto 0);
pll_busy : std_logic;
end record;
-- define all the read only registers :
type t_ro_regs is record
cal_status : t_cal_status;
codvw_status : t_codvw_status;
test_status : t_test_status;
end record;
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Read / Write Registers
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Calibration control register
type t_hl_css is record
hl_css : std_logic_vector(c_hl_ccs_num_stages-1 downto 0);
cal_start : std_logic;
end record t_hl_css;
-- Mode register A
type t_mr_register_a is record
mr0 : std_logic_vector(c_max_mode_reg_index -1 downto 0);
mr1 : std_logic_vector(c_max_mode_reg_index -1 downto 0);
end record t_mr_register_a;
-- Mode register B
type t_mr_register_b is record
mr2 : std_logic_vector(c_max_mode_reg_index -1 downto 0);
mr3 : std_logic_vector(c_max_mode_reg_index -1 downto 0);
end record t_mr_register_b;
-- algorithm parameterisation register
type t_parameterisation_reg_a is record
nominal_poa_phase_lead : std_logic_vector(3 downto 0);
maximum_poa_delay : std_logic_vector(3 downto 0);
num_phases_per_tck_pll : std_logic_vector(3 downto 0);
pll_360_sweeps : std_logic_vector(3 downto 0);
nominal_dqs_delay : std_logic_vector(2 downto 0);
extend_octrt_by : std_logic_vector(3 downto 0);
delay_octrt_by : std_logic_vector(3 downto 0);
end record;
-- test signal register
type t_if_test_reg is record
pll_phs_shft_phase_sel : natural range 0 to 15;
pll_phs_shft_up_wc : std_logic;
pll_phs_shft_dn_wc : std_logic;
ac_1t_toggle : std_logic; -- unused
tracking_period_ms : std_logic_vector(7 downto 0); -- 0 = as fast as possible approx in ms
tracking_units_are_10us : std_logic;
end record;
-- define all the read/write registers
type t_rw_regs is record
mr_reg_a : t_mr_register_a;
mr_reg_b : t_mr_register_b;
rw_hl_css : t_hl_css;
rw_param_reg : t_parameterisation_reg_a;
rw_if_test : t_if_test_reg;
end record;
-- >>>>>>>>>>>>>>>>>>>>>>>
-- Group all registers
-- >>>>>>>>>>>>>>>>>>>>>>>
type t_mmi_regs is record
rw_regs : t_rw_regs;
ro_regs : t_ro_regs;
enable_writes : std_logic;
end record;
-- FUNCTION DECLARATIONS
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Read Only Registers
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- cal_status
function defaults return t_cal_status;
function defaults ( ctrl_mmi : in t_ctrl_mmi;
USE_IRAM : in std_logic;
dqs_capture : in natural;
int_ac_1t : in std_logic;
trefi_failure : in std_logic;
iram_status : in t_iram_stat;
IRAM_AWIDTH : in natural
) return t_cal_status;
function read (reg : t_cal_status) return std_logic_vector;
-- codvw status
function defaults return t_codvw_status;
function defaults ( dgrb_mmi : t_dgrb_mmi
) return t_codvw_status;
function read (reg : in t_codvw_status) return std_logic_vector;
-- test status report
function defaults return t_test_status;
function defaults ( ctrl_mmi : in t_ctrl_mmi;
pll_mmi : in t_pll_mmi;
rw_if_test : t_if_test_reg
) return t_test_status;
function read (reg : t_test_status) return std_logic_vector;
-- define all the read only registers
function defaults return t_ro_regs;
function defaults (dgrb_mmi : t_dgrb_mmi;
ctrl_mmi : t_ctrl_mmi;
pll_mmi : t_pll_mmi;
rw_if_test : t_if_test_reg;
USE_IRAM : std_logic;
dqs_capture : natural;
int_ac_1t : std_logic;
trefi_failure : std_logic;
iram_status : t_iram_stat;
IRAM_AWIDTH : natural
) return t_ro_regs;
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Read / Write Registers
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Calibration control register
-- high level calibration stage set register comprises a bit vector for
-- the calibration stage coding and the 1 control bit.
function defaults return t_hl_css;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_hl_css;
function read (reg : in t_hl_css) return std_logic_vector;
procedure write_clear (signal reg : inout t_hl_css);
-- Mode register A
-- mode registers 0 and 1 (mr and emr1)
function defaults return t_mr_register_a;
function defaults ( mr0 : in std_logic_vector;
mr1 : in std_logic_vector
) return t_mr_register_a;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_mr_register_a;
function read (reg : in t_mr_register_a) return std_logic_vector;
-- Mode register B
-- mode registers 2 and 3 (emr2 and emr3) - not present in ddr DRAM
function defaults return t_mr_register_b;
function defaults ( mr2 : in std_logic_vector;
mr3 : in std_logic_vector
) return t_mr_register_b;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_mr_register_b;
function read (reg : in t_mr_register_b) return std_logic_vector;
-- algorithm parameterisation register
function defaults return t_parameterisation_reg_a;
function defaults ( NOM_DQS_PHASE_SETTING : in natural;
PLL_STEPS_PER_CYCLE : in natural;
pll_360_sweeps : in natural
) return t_parameterisation_reg_a;
function read ( reg : in t_parameterisation_reg_a) return std_logic_vector;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_parameterisation_reg_a;
-- test signal register
function defaults return t_if_test_reg;
function defaults ( TRACKING_INTERVAL_IN_MS : in natural
) return t_if_test_reg;
function read ( reg : in t_if_test_reg) return std_logic_vector;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_if_test_reg;
procedure write_clear (signal reg : inout t_if_test_reg);
-- define all the read/write registers
function defaults return t_rw_regs;
function defaults(
mr0 : in std_logic_vector;
mr1 : in std_logic_vector;
mr2 : in std_logic_vector;
mr3 : in std_logic_vector;
NOM_DQS_PHASE_SETTING : in natural;
PLL_STEPS_PER_CYCLE : in natural;
pll_360_sweeps : in natural;
TRACKING_INTERVAL_IN_MS : in natural;
C_HL_STAGE_ENABLE : in std_logic_vector(c_hl_ccs_num_stages-1 downto 0)
)return t_rw_regs;
procedure write_clear (signal regs : inout t_rw_regs);
-- >>>>>>>>>>>>>>>>>>>>>>>
-- Group all registers
-- >>>>>>>>>>>>>>>>>>>>>>>
function defaults return t_mmi_regs;
function v_read (mmi_regs : in t_mmi_regs;
address : in natural
) return std_logic_vector;
function read (signal mmi_regs : in t_mmi_regs;
address : in natural
) return std_logic_vector;
procedure write (mmi_regs : inout t_mmi_regs;
address : in natural;
wdata : in std_logic_vector(31 downto 0));
-- >>>>>>>>>>>>>>>>>>>>>>>
-- functions to communicate register settings to other sequencer blocks
-- >>>>>>>>>>>>>>>>>>>>>>>
function pack_record (ip_regs : t_rw_regs) return t_mmi_pll_reconfig;
function pack_record (ip_regs : t_rw_regs) return t_admin_ctrl;
function pack_record (ip_regs : t_rw_regs) return t_mmi_ctrl;
function pack_record ( ip_regs : t_rw_regs) return t_algm_paramaterisation;
-- >>>>>>>>>>>>>>>>>>>>>>>
-- helper functions
-- >>>>>>>>>>>>>>>>>>>>>>>
function to_t_hl_css_reg (hl_css : t_hl_css ) return t_hl_css_reg;
function pack_ack_seen ( cal_stage_ack_seen : in t_cal_stage_ack_seen
) return std_logic_vector;
-- encoding of stage and active block for register setting
function encode_current_stage (ctrl_cmd_id : t_ctrl_cmd_id) return std_logic_vector;
function encode_active_block (active_block : t_ctrl_active_block) return std_logic_vector;
--
end ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg;
--
package body ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg is
-- >>>>>>>>>>>>>>>>>>>>
-- Read Only Registers
-- >>>>>>>>>>>>>>>>>>>
-- ---------------------------------------------------------------
-- CODVW status report
-- ---------------------------------------------------------------
function defaults return t_codvw_status is
variable temp: t_codvw_status;
begin
temp.cal_codvw_phase := (others => '0');
temp.cal_codvw_size := (others => '0');
temp.codvw_trk_shift := (others => '0');
temp.codvw_grt_one_dvw := '0';
return temp;
end function;
function defaults ( dgrb_mmi : t_dgrb_mmi
) return t_codvw_status is
variable temp: t_codvw_status;
begin
temp := defaults;
temp.cal_codvw_phase := dgrb_mmi.cal_codvw_phase;
temp.cal_codvw_size := dgrb_mmi.cal_codvw_size;
temp.codvw_trk_shift := dgrb_mmi.codvw_trk_shift;
temp.codvw_grt_one_dvw := dgrb_mmi.codvw_grt_one_dvw;
return temp;
end function;
function read (reg : in t_codvw_status) return std_logic_vector is
variable temp : std_logic_vector(31 downto 0);
begin
temp := (others => '0');
temp(31 downto 24) := reg.cal_codvw_phase;
temp(23 downto 16) := reg.cal_codvw_size;
temp(15 downto 4) := reg.codvw_trk_shift;
temp(0) := reg.codvw_grt_one_dvw;
return temp;
end function;
-- ---------------------------------------------------------------
-- Calibration status report
-- ---------------------------------------------------------------
function defaults return t_cal_status is
variable temp: t_cal_status;
begin
temp.iram_addr_width := (others => '0');
temp.out_of_mem := '0';
temp.contested_access := '0';
temp.cal_fail := '0';
temp.cal_success := '0';
temp.ctrl_err_code := (others => '0');
temp.trefi_failure := '0';
temp.int_ac_1t := '0';
temp.dqs_capture := '0';
temp.iram_present := '0';
temp.active_block := (others => '0');
temp.current_stage := (others => '0');
return temp;
end function;
function defaults ( ctrl_mmi : in t_ctrl_mmi;
USE_IRAM : in std_logic;
dqs_capture : in natural;
int_ac_1t : in std_logic;
trefi_failure : in std_logic;
iram_status : in t_iram_stat;
IRAM_AWIDTH : in natural
) return t_cal_status is
variable temp : t_cal_status;
begin
temp := defaults;
temp.iram_addr_width := std_logic_vector(to_unsigned(IRAM_AWIDTH, temp.iram_addr_width'length));
temp.out_of_mem := iram_status.out_of_mem;
temp.contested_access := iram_status.contested_access;
temp.cal_fail := ctrl_mmi.ctrl_calibration_fail;
temp.cal_success := ctrl_mmi.ctrl_calibration_success;
temp.ctrl_err_code := ctrl_mmi.ctrl_err_code;
temp.trefi_failure := trefi_failure;
temp.int_ac_1t := int_ac_1t;
if dqs_capture = 1 then
temp.dqs_capture := '1';
elsif dqs_capture = 0 then
temp.dqs_capture := '0';
else
report regs_report_prefix & " invalid value for dqs_capture constant of " & integer'image(dqs_capture) severity failure;
end if;
temp.iram_present := USE_IRAM;
temp.active_block := encode_active_block(ctrl_mmi.ctrl_current_active_block);
temp.current_stage := encode_current_stage(ctrl_mmi.ctrl_current_stage);
return temp;
end function;
-- read for mmi status register
function read ( reg : t_cal_status
) return std_logic_vector is
variable output : std_logic_vector(31 downto 0);
begin
output := (others => '0');
output( 7 downto 0) := reg.current_stage;
output(11 downto 8) := reg.active_block;
output(12) := reg.iram_present;
output(13) := reg.dqs_capture;
output(14) := reg.int_ac_1t;
output(15) := reg.trefi_failure;
output(23 downto 16) := reg.ctrl_err_code;
output(24) := reg.cal_success;
output(25) := reg.cal_fail;
output(26) := reg.contested_access;
output(27) := reg.out_of_mem;
output(31 downto 28) := reg.iram_addr_width;
return output;
end function;
-- ---------------------------------------------------------------
-- Test status report
-- ---------------------------------------------------------------
function defaults return t_test_status is
variable temp: t_test_status;
begin
temp.ack_seen := (others => '0');
temp.pll_mmi_err := (others => '0');
temp.pll_busy := '0';
return temp;
end function;
function defaults ( ctrl_mmi : in t_ctrl_mmi;
pll_mmi : in t_pll_mmi;
rw_if_test : t_if_test_reg
) return t_test_status is
variable temp : t_test_status;
begin
temp := defaults;
temp.ack_seen := pack_ack_seen(ctrl_mmi.ctrl_cal_stage_ack_seen);
temp.pll_mmi_err := pll_mmi.err;
temp.pll_busy := pll_mmi.pll_busy or rw_if_test.pll_phs_shft_up_wc or rw_if_test.pll_phs_shft_dn_wc;
return temp;
end function;
-- read for mmi status register
function read ( reg : t_test_status
) return std_logic_vector is
variable output : std_logic_vector(31 downto 0);
begin
output := (others => '0');
output(31 downto 32-c_hl_ccs_num_stages) := reg.ack_seen;
output( 5 downto 4) := reg.pll_mmi_err;
output(0) := reg.pll_busy;
return output;
end function;
-------------------------------------------------
-- FOR ALL RO REGS:
-------------------------------------------------
function defaults return t_ro_regs is
variable temp: t_ro_regs;
begin
temp.cal_status := defaults;
temp.codvw_status := defaults;
return temp;
end function;
function defaults (dgrb_mmi : t_dgrb_mmi;
ctrl_mmi : t_ctrl_mmi;
pll_mmi : t_pll_mmi;
rw_if_test : t_if_test_reg;
USE_IRAM : std_logic;
dqs_capture : natural;
int_ac_1t : std_logic;
trefi_failure : std_logic;
iram_status : t_iram_stat;
IRAM_AWIDTH : natural
) return t_ro_regs is
variable output : t_ro_regs;
begin
output := defaults;
output.cal_status := defaults(ctrl_mmi, USE_IRAM, dqs_capture, int_ac_1t, trefi_failure, iram_status, IRAM_AWIDTH);
output.codvw_status := defaults(dgrb_mmi);
output.test_status := defaults(ctrl_mmi, pll_mmi, rw_if_test);
return output;
end function;
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- Read / Write registers
-- >>>>>>>>>>>>>>>>>>>>>>>>
-- ---------------------------------------------------------------
-- mode register set A
-- ---------------------------------------------------------------
function defaults return t_mr_register_a is
variable temp :t_mr_register_a;
begin
temp.mr0 := (others => '0');
temp.mr1 := (others => '0');
return temp;
end function;
-- apply default mode register settings to register
function defaults ( mr0 : in std_logic_vector;
mr1 : in std_logic_vector
) return t_mr_register_a is
variable temp :t_mr_register_a;
begin
temp := defaults;
temp.mr0 := mr0(temp.mr0'range);
temp.mr1 := mr1(temp.mr1'range);
return temp;
end function;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_mr_register_a is
variable temp :t_mr_register_a;
begin
temp.mr0 := wdata_in(c_max_mode_reg_index -1 downto 0);
temp.mr1 := wdata_in(c_max_mode_reg_index -1 + 16 downto 16);
return temp;
end function;
function read (reg : in t_mr_register_a) return std_logic_vector is
variable temp : std_logic_vector(31 downto 0) := (others => '0');
begin
temp(c_max_mode_reg_index -1 downto 0) := reg.mr0;
temp(c_max_mode_reg_index -1 + 16 downto 16) := reg.mr1;
return temp;
end function;
-- ---------------------------------------------------------------
-- mode register set B
-- ---------------------------------------------------------------
function defaults return t_mr_register_b is
variable temp :t_mr_register_b;
begin
temp.mr2 := (others => '0');
temp.mr3 := (others => '0');
return temp;
end function;
-- apply default mode register settings to register
function defaults ( mr2 : in std_logic_vector;
mr3 : in std_logic_vector
) return t_mr_register_b is
variable temp :t_mr_register_b;
begin
temp := defaults;
temp.mr2 := mr2(temp.mr2'range);
temp.mr3 := mr3(temp.mr3'range);
return temp;
end function;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_mr_register_b is
variable temp :t_mr_register_b;
begin
temp.mr2 := wdata_in(c_max_mode_reg_index -1 downto 0);
temp.mr3 := wdata_in(c_max_mode_reg_index -1 + 16 downto 16);
return temp;
end function;
function read (reg : in t_mr_register_b) return std_logic_vector is
variable temp : std_logic_vector(31 downto 0) := (others => '0');
begin
temp(c_max_mode_reg_index -1 downto 0) := reg.mr2;
temp(c_max_mode_reg_index -1 + 16 downto 16) := reg.mr3;
return temp;
end function;
-- ---------------------------------------------------------------
-- HL CSS (high level calibration state status)
-- ---------------------------------------------------------------
function defaults return t_hl_css is
variable temp : t_hl_css;
begin
temp.hl_css := (others => '0');
temp.cal_start := '0';
return temp;
end function;
function defaults ( C_HL_STAGE_ENABLE : in std_logic_vector(c_hl_ccs_num_stages-1 downto 0)
) return t_hl_css is
variable temp: t_hl_css;
begin
temp := defaults;
temp.hl_css := temp.hl_css OR C_HL_STAGE_ENABLE;
return temp;
end function;
function read ( reg : in t_hl_css) return std_logic_vector is
variable temp : std_logic_vector (31 downto 0) := (others => '0');
begin
temp(30 downto 30-c_hl_ccs_num_stages+1) := reg.hl_css;
temp(0) := reg.cal_start;
return temp;
end function;
function write (wdata_in : std_logic_vector(31 downto 0) )return t_hl_css is
variable reg : t_hl_css;
begin
reg.hl_css := wdata_in(30 downto 30-c_hl_ccs_num_stages+1);
reg.cal_start := wdata_in(0);
return reg;
end function;
procedure write_clear (signal reg : inout t_hl_css) is
begin
reg.cal_start <= '0';
end procedure;
-- ---------------------------------------------------------------
-- paramaterisation of sequencer through Avalon interface
-- ---------------------------------------------------------------
function defaults return t_parameterisation_reg_a is
variable temp : t_parameterisation_reg_a;
begin
temp.nominal_poa_phase_lead := (others => '0');
temp.maximum_poa_delay := (others => '0');
temp.pll_360_sweeps := "0000";
temp.num_phases_per_tck_pll := "0011";
temp.nominal_dqs_delay := (others => '0');
temp.extend_octrt_by := "0100";
temp.delay_octrt_by := "0000";
return temp;
end function;
-- reset the paramterisation reg to given values
function defaults ( NOM_DQS_PHASE_SETTING : in natural;
PLL_STEPS_PER_CYCLE : in natural;
pll_360_sweeps : in natural
) return t_parameterisation_reg_a is
variable temp: t_parameterisation_reg_a;
begin
temp := defaults;
temp.num_phases_per_tck_pll := std_logic_vector(to_unsigned(PLL_STEPS_PER_CYCLE /8 , temp.num_phases_per_tck_pll'high + 1 ));
temp.pll_360_sweeps := std_logic_vector(to_unsigned(pll_360_sweeps , temp.pll_360_sweeps'high + 1 ));
temp.nominal_dqs_delay := std_logic_vector(to_unsigned(NOM_DQS_PHASE_SETTING , temp.nominal_dqs_delay'high + 1 ));
temp.extend_octrt_by := std_logic_vector(to_unsigned(5 , temp.extend_octrt_by'high + 1 ));
temp.delay_octrt_by := std_logic_vector(to_unsigned(6 , temp.delay_octrt_by'high + 1 ));
return temp;
end function;
function read ( reg : in t_parameterisation_reg_a) return std_logic_vector is
variable temp : std_logic_vector (31 downto 0) := (others => '0');
begin
temp( 3 downto 0) := reg.pll_360_sweeps;
temp( 7 downto 4) := reg.num_phases_per_tck_pll;
temp(10 downto 8) := reg.nominal_dqs_delay;
temp(19 downto 16) := reg.nominal_poa_phase_lead;
temp(23 downto 20) := reg.maximum_poa_delay;
temp(27 downto 24) := reg.extend_octrt_by;
temp(31 downto 28) := reg.delay_octrt_by;
return temp;
end function;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_parameterisation_reg_a is
variable reg : t_parameterisation_reg_a;
begin
reg.pll_360_sweeps := wdata_in( 3 downto 0);
reg.num_phases_per_tck_pll := wdata_in( 7 downto 4);
reg.nominal_dqs_delay := wdata_in(10 downto 8);
reg.nominal_poa_phase_lead := wdata_in(19 downto 16);
reg.maximum_poa_delay := wdata_in(23 downto 20);
reg.extend_octrt_by := wdata_in(27 downto 24);
reg.delay_octrt_by := wdata_in(31 downto 28);
return reg;
end function;
-- ---------------------------------------------------------------
-- t_if_test_reg - additional test support register
-- ---------------------------------------------------------------
function defaults return t_if_test_reg is
variable temp : t_if_test_reg;
begin
temp.pll_phs_shft_phase_sel := 0;
temp.pll_phs_shft_up_wc := '0';
temp.pll_phs_shft_dn_wc := '0';
temp.ac_1t_toggle := '0';
temp.tracking_period_ms := "10000000"; -- 127 ms interval
temp.tracking_units_are_10us := '0';
return temp;
end function;
-- reset the paramterisation reg to given values
function defaults ( TRACKING_INTERVAL_IN_MS : in natural
) return t_if_test_reg is
variable temp: t_if_test_reg;
begin
temp := defaults;
temp.tracking_period_ms := std_logic_vector(to_unsigned(TRACKING_INTERVAL_IN_MS, temp.tracking_period_ms'length));
return temp;
end function;
function read ( reg : in t_if_test_reg) return std_logic_vector is
variable temp : std_logic_vector (31 downto 0) := (others => '0');
begin
temp( 3 downto 0) := std_logic_vector(to_unsigned(reg.pll_phs_shft_phase_sel,4));
temp(4) := reg.pll_phs_shft_up_wc;
temp(5) := reg.pll_phs_shft_dn_wc;
temp(16) := reg.ac_1t_toggle;
temp(15 downto 8) := reg.tracking_period_ms;
temp(20) := reg.tracking_units_are_10us;
return temp;
end function;
function write (wdata_in : std_logic_vector(31 downto 0)) return t_if_test_reg is
variable reg : t_if_test_reg;
begin
reg.pll_phs_shft_phase_sel := to_integer(unsigned(wdata_in( 3 downto 0)));
reg.pll_phs_shft_up_wc := wdata_in(4);
reg.pll_phs_shft_dn_wc := wdata_in(5);
reg.ac_1t_toggle := wdata_in(16);
reg.tracking_period_ms := wdata_in(15 downto 8);
reg.tracking_units_are_10us := wdata_in(20);
return reg;
end function;
procedure write_clear (signal reg : inout t_if_test_reg) is
begin
reg.ac_1t_toggle <= '0';
reg.pll_phs_shft_up_wc <= '0';
reg.pll_phs_shft_dn_wc <= '0';
end procedure;
-- ---------------------------------------------------------------
-- RW Regs, record of read/write register records (to simplify handling)
-- ---------------------------------------------------------------
function defaults return t_rw_regs is
variable temp : t_rw_regs;
begin
temp.mr_reg_a := defaults;
temp.mr_reg_b := defaults;
temp.rw_hl_css := defaults;
temp.rw_param_reg := defaults;
temp.rw_if_test := defaults;
return temp;
end function;
function defaults(
mr0 : in std_logic_vector;
mr1 : in std_logic_vector;
mr2 : in std_logic_vector;
mr3 : in std_logic_vector;
NOM_DQS_PHASE_SETTING : in natural;
PLL_STEPS_PER_CYCLE : in natural;
pll_360_sweeps : in natural;
TRACKING_INTERVAL_IN_MS : in natural;
C_HL_STAGE_ENABLE : in std_logic_vector(c_hl_ccs_num_stages-1 downto 0)
)return t_rw_regs is
variable temp : t_rw_regs;
begin
temp := defaults;
temp.mr_reg_a := defaults(mr0, mr1);
temp.mr_reg_b := defaults(mr2, mr3);
temp.rw_param_reg := defaults(NOM_DQS_PHASE_SETTING,
PLL_STEPS_PER_CYCLE,
pll_360_sweeps);
temp.rw_if_test := defaults(TRACKING_INTERVAL_IN_MS);
temp.rw_hl_css := defaults(C_HL_STAGE_ENABLE);
return temp;
end function;
procedure write_clear (signal regs : inout t_rw_regs) is
begin
write_clear(regs.rw_if_test);
write_clear(regs.rw_hl_css);
end procedure;
-- >>>>>>>>>>>>>>>>>>>>>>>>>>
-- All mmi registers:
-- >>>>>>>>>>>>>>>>>>>>>>>>>>
function defaults return t_mmi_regs is
variable v_mmi_regs : t_mmi_regs;
begin
v_mmi_regs.rw_regs := defaults;
v_mmi_regs.ro_regs := defaults;
v_mmi_regs.enable_writes := '0';
return v_mmi_regs;
end function;
function v_read (mmi_regs : in t_mmi_regs;
address : in natural
) return std_logic_vector is
variable output : std_logic_vector(31 downto 0);
begin
output := (others => '0');
case address is
-- status register
when c_regofst_cal_status => output := read (mmi_regs.ro_regs.cal_status);
-- debug access register
when c_regofst_debug_access =>
if (mmi_regs.enable_writes = '1') then
output := c_mmi_access_codeword;
else
output := (others => '0');
end if;
-- test i/f to check which stages have acknowledged a command and pll checks
when c_regofst_test_status => output := read(mmi_regs.ro_regs.test_status);
-- mode registers
when c_regofst_mr_register_a => output := read(mmi_regs.rw_regs.mr_reg_a);
when c_regofst_mr_register_b => output := read(mmi_regs.rw_regs.mr_reg_b);
-- codvw r/o status register
when c_regofst_codvw_status => output := read(mmi_regs.ro_regs.codvw_status);
-- read/write registers
when c_regofst_hl_css => output := read(mmi_regs.rw_regs.rw_hl_css);
when c_regofst_if_param => output := read(mmi_regs.rw_regs.rw_param_reg);
when c_regofst_if_test => output := read(mmi_regs.rw_regs.rw_if_test);
when others => report regs_report_prefix & "MMI registers detected an attempt to read to non-existant register location" severity warning;
-- set illegal addr interrupt.
end case;
return output;
end function;
function read (signal mmi_regs : in t_mmi_regs;
address : in natural
) return std_logic_vector is
variable output : std_logic_vector(31 downto 0);
variable v_mmi_regs : t_mmi_regs;
begin
v_mmi_regs := mmi_regs;
output := v_read(v_mmi_regs, address);
return output;
end function;
procedure write (mmi_regs : inout t_mmi_regs;
address : in natural;
wdata : in std_logic_vector(31 downto 0)) is
begin
-- intercept writes to codeword. This needs to be set for iRAM access :
if address = c_regofst_debug_access then
if wdata = c_mmi_access_codeword then
mmi_regs.enable_writes := '1';
else
mmi_regs.enable_writes := '0';
end if;
else
case address is
-- read only registers
when c_regofst_cal_status |
c_regofst_codvw_status |
c_regofst_test_status =>
report regs_report_prefix & "MMI registers detected an attempt to write to read only register number" & integer'image(address) severity failure;
-- read/write registers
when c_regofst_mr_register_a => mmi_regs.rw_regs.mr_reg_a := write(wdata);
when c_regofst_mr_register_b => mmi_regs.rw_regs.mr_reg_b := write(wdata);
when c_regofst_hl_css => mmi_regs.rw_regs.rw_hl_css := write(wdata);
when c_regofst_if_param => mmi_regs.rw_regs.rw_param_reg := write(wdata);
when c_regofst_if_test => mmi_regs.rw_regs.rw_if_test := write(wdata);
when others => -- set illegal addr interrupt.
report regs_report_prefix & "MMI registers detected an attempt to write to non existant register, with expected number" & integer'image(address) severity failure;
end case;
end if;
end procedure;
-- >>>>>>>>>>>>>>>>>>>>>>>>>>
-- the following functions enable register data to be communicated to other sequencer blocks
-- >>>>>>>>>>>>>>>>>>>>>>>>>>
function pack_record ( ip_regs : t_rw_regs
) return t_algm_paramaterisation is
variable output : t_algm_paramaterisation;
begin
-- default assignments
output.num_phases_per_tck_pll := 16;
output.pll_360_sweeps := 1;
output.nominal_dqs_delay := 2;
output.nominal_poa_phase_lead := 1;
output.maximum_poa_delay := 5;
output.odt_enabled := false;
output.num_phases_per_tck_pll := to_integer(unsigned(ip_regs.rw_param_reg.num_phases_per_tck_pll)) * 8;
case ip_regs.rw_param_reg.nominal_dqs_delay is
when "010" => output.nominal_dqs_delay := 2;
when "001" => output.nominal_dqs_delay := 1;
when "000" => output.nominal_dqs_delay := 0;
when "011" => output.nominal_dqs_delay := 3;
when others => report regs_report_prefix &
"there is a unsupported number of DQS taps (" &
natural'image(to_integer(unsigned(ip_regs.rw_param_reg.nominal_dqs_delay))) &
") being advertised as the standard value" severity error;
end case;
case ip_regs.rw_param_reg.nominal_poa_phase_lead is
when "0001" => output.nominal_poa_phase_lead := 1;
when "0010" => output.nominal_poa_phase_lead := 2;
when "0011" => output.nominal_poa_phase_lead := 3;
when "0000" => output.nominal_poa_phase_lead := 0;
when others => report regs_report_prefix &
"there is an unsupported nominal postamble phase lead paramater set (" &
natural'image(to_integer(unsigned(ip_regs.rw_param_reg.nominal_poa_phase_lead))) &
")" severity error;
end case;
if ( (ip_regs.mr_reg_a.mr1(2) = '1')
or (ip_regs.mr_reg_a.mr1(6) = '1')
or (ip_regs.mr_reg_a.mr1(9) = '1')
) then
output.odt_enabled := true;
end if;
output.pll_360_sweeps := to_integer(unsigned(ip_regs.rw_param_reg.pll_360_sweeps));
output.maximum_poa_delay := to_integer(unsigned(ip_regs.rw_param_reg.maximum_poa_delay));
output.extend_octrt_by := to_integer(unsigned(ip_regs.rw_param_reg.extend_octrt_by));
output.delay_octrt_by := to_integer(unsigned(ip_regs.rw_param_reg.delay_octrt_by));
output.tracking_period_ms := to_integer(unsigned(ip_regs.rw_if_test.tracking_period_ms));
return output;
end function;
function pack_record (ip_regs : t_rw_regs) return t_mmi_pll_reconfig is
variable output : t_mmi_pll_reconfig;
begin
output.pll_phs_shft_phase_sel := ip_regs.rw_if_test.pll_phs_shft_phase_sel;
output.pll_phs_shft_up_wc := ip_regs.rw_if_test.pll_phs_shft_up_wc;
output.pll_phs_shft_dn_wc := ip_regs.rw_if_test.pll_phs_shft_dn_wc;
return output;
end function;
function pack_record (ip_regs : t_rw_regs) return t_admin_ctrl is
variable output : t_admin_ctrl := defaults;
begin
output.mr0 := ip_regs.mr_reg_a.mr0;
output.mr1 := ip_regs.mr_reg_a.mr1;
output.mr2 := ip_regs.mr_reg_b.mr2;
output.mr3 := ip_regs.mr_reg_b.mr3;
return output;
end function;
function pack_record (ip_regs : t_rw_regs) return t_mmi_ctrl is
variable output : t_mmi_ctrl := defaults;
begin
output.hl_css := to_t_hl_css_reg (ip_regs.rw_hl_css);
output.calibration_start := ip_regs.rw_hl_css.cal_start;
output.tracking_period_ms := to_integer(unsigned(ip_regs.rw_if_test.tracking_period_ms));
output.tracking_orvd_to_10ms := ip_regs.rw_if_test.tracking_units_are_10us;
return output;
end function;
-- >>>>>>>>>>>>>>>>>>>>>>>>>>
-- Helper functions :
-- >>>>>>>>>>>>>>>>>>>>>>>>>>
function to_t_hl_css_reg (hl_css : t_hl_css
) return t_hl_css_reg is
variable output : t_hl_css_reg := defaults;
begin
output.phy_initialise_dis := hl_css.hl_css(c_hl_css_reg_phy_initialise_dis_bit);
output.init_dram_dis := hl_css.hl_css(c_hl_css_reg_init_dram_dis_bit);
output.write_ihi_dis := hl_css.hl_css(c_hl_css_reg_write_ihi_dis_bit);
output.cal_dis := hl_css.hl_css(c_hl_css_reg_cal_dis_bit);
output.write_btp_dis := hl_css.hl_css(c_hl_css_reg_write_btp_dis_bit);
output.write_mtp_dis := hl_css.hl_css(c_hl_css_reg_write_mtp_dis_bit);
output.read_mtp_dis := hl_css.hl_css(c_hl_css_reg_read_mtp_dis_bit);
output.rrp_reset_dis := hl_css.hl_css(c_hl_css_reg_rrp_reset_dis_bit);
output.rrp_sweep_dis := hl_css.hl_css(c_hl_css_reg_rrp_sweep_dis_bit);
output.rrp_seek_dis := hl_css.hl_css(c_hl_css_reg_rrp_seek_dis_bit);
output.rdv_dis := hl_css.hl_css(c_hl_css_reg_rdv_dis_bit);
output.poa_dis := hl_css.hl_css(c_hl_css_reg_poa_dis_bit);
output.was_dis := hl_css.hl_css(c_hl_css_reg_was_dis_bit);
output.adv_rd_lat_dis := hl_css.hl_css(c_hl_css_reg_adv_rd_lat_dis_bit);
output.adv_wr_lat_dis := hl_css.hl_css(c_hl_css_reg_adv_wr_lat_dis_bit);
output.prep_customer_mr_setup_dis := hl_css.hl_css(c_hl_css_reg_prep_customer_mr_setup_dis_bit);
output.tracking_dis := hl_css.hl_css(c_hl_css_reg_tracking_dis_bit);
return output;
end function;
-- pack the ack seen record element into a std_logic_vector
function pack_ack_seen ( cal_stage_ack_seen : in t_cal_stage_ack_seen
) return std_logic_vector is
variable v_output: std_logic_vector(c_hl_ccs_num_stages-1 downto 0);
variable v_start : natural range 0 to c_hl_ccs_num_stages-1;
begin
v_output := (others => '0');
v_output(c_hl_css_reg_cal_dis_bit ) := cal_stage_ack_seen.cal;
v_output(c_hl_css_reg_phy_initialise_dis_bit ) := cal_stage_ack_seen.phy_initialise;
v_output(c_hl_css_reg_init_dram_dis_bit ) := cal_stage_ack_seen.init_dram;
v_output(c_hl_css_reg_write_ihi_dis_bit ) := cal_stage_ack_seen.write_ihi;
v_output(c_hl_css_reg_write_btp_dis_bit ) := cal_stage_ack_seen.write_btp;
v_output(c_hl_css_reg_write_mtp_dis_bit ) := cal_stage_ack_seen.write_mtp;
v_output(c_hl_css_reg_read_mtp_dis_bit ) := cal_stage_ack_seen.read_mtp;
v_output(c_hl_css_reg_rrp_reset_dis_bit ) := cal_stage_ack_seen.rrp_reset;
v_output(c_hl_css_reg_rrp_sweep_dis_bit ) := cal_stage_ack_seen.rrp_sweep;
v_output(c_hl_css_reg_rrp_seek_dis_bit ) := cal_stage_ack_seen.rrp_seek;
v_output(c_hl_css_reg_rdv_dis_bit ) := cal_stage_ack_seen.rdv;
v_output(c_hl_css_reg_poa_dis_bit ) := cal_stage_ack_seen.poa;
v_output(c_hl_css_reg_was_dis_bit ) := cal_stage_ack_seen.was;
v_output(c_hl_css_reg_adv_rd_lat_dis_bit ) := cal_stage_ack_seen.adv_rd_lat;
v_output(c_hl_css_reg_adv_wr_lat_dis_bit ) := cal_stage_ack_seen.adv_wr_lat;
v_output(c_hl_css_reg_prep_customer_mr_setup_dis_bit) := cal_stage_ack_seen.prep_customer_mr_setup;
v_output(c_hl_css_reg_tracking_dis_bit ) := cal_stage_ack_seen.tracking_setup;
return v_output;
end function;
-- reg encoding of current stage
function encode_current_stage (ctrl_cmd_id : t_ctrl_cmd_id
) return std_logic_vector is
variable output : std_logic_vector(7 downto 0);
begin
case ctrl_cmd_id is
when cmd_idle => output := X"00";
when cmd_phy_initialise => output := X"01";
when cmd_init_dram |
cmd_prog_cal_mr => output := X"02";
when cmd_write_ihi => output := X"03";
when cmd_write_btp => output := X"04";
when cmd_write_mtp => output := X"05";
when cmd_read_mtp => output := X"06";
when cmd_rrp_reset => output := X"07";
when cmd_rrp_sweep => output := X"08";
when cmd_rrp_seek => output := X"09";
when cmd_rdv => output := X"0A";
when cmd_poa => output := X"0B";
when cmd_was => output := X"0C";
when cmd_prep_adv_rd_lat => output := X"0D";
when cmd_prep_adv_wr_lat => output := X"0E";
when cmd_prep_customer_mr_setup => output := X"0F";
when cmd_tr_due => output := X"10";
when others =>
null;
report regs_report_prefix & "unknown cal command (" & t_ctrl_cmd_id'image(ctrl_cmd_id) & ") seen in encode_current_stage function" severity failure;
end case;
return output;
end function;
-- reg encoding of current active block
function encode_active_block (active_block : t_ctrl_active_block
) return std_logic_vector is
variable output : std_logic_vector(3 downto 0);
begin
case active_block is
when idle => output := X"0";
when admin => output := X"1";
when dgwb => output := X"2";
when dgrb => output := X"3";
when proc => output := X"4";
when setup => output := X"5";
when iram => output := X"6";
when others =>
output := X"7";
report regs_report_prefix & "unknown active_block seen in encode_active_block function" severity failure;
end case;
return output;
end function;
--
end ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg;
--
-- -----------------------------------------------------------------------------
-- Abstract : mmi block for the non-levelling AFI PHY sequencer
-- This is an optional block with an Avalon interface and status
-- register instantiations to enhance the debug capabilities of
-- the sequencer. The format of the block is:
-- a) an Avalon interface which supports different avalon and
-- sequencer clock sources
-- b) mmi status registers (which hold information about the
-- successof the calibration)
-- c) a read interface to the iram to enable debug through the
-- avalon interface.
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_mmi is
generic (
-- physical interface width definitions
MEM_IF_DQS_WIDTH : natural;
MEM_IF_DWIDTH : natural;
MEM_IF_DM_WIDTH : natural;
MEM_IF_DQ_PER_DQS : natural;
MEM_IF_DQS_CAPTURE : natural;
DWIDTH_RATIO : natural;
CLOCK_INDEX_WIDTH : natural;
MEM_IF_CLK_PAIR_COUNT : natural;
MEM_IF_ADDR_WIDTH : natural;
MEM_IF_BANKADDR_WIDTH : natural;
MEM_IF_NUM_RANKS : natural;
ADV_LAT_WIDTH : natural;
RESYNCHRONISE_AVALON_DBG : natural;
AV_IF_ADDR_WIDTH : natural;
MEM_IF_MEMTYPE : string;
-- setup / algorithm information
NOM_DQS_PHASE_SETTING : natural;
SCAN_CLK_DIVIDE_BY : natural;
RDP_ADDR_WIDTH : natural;
PLL_STEPS_PER_CYCLE : natural;
IOE_PHASES_PER_TCK : natural;
IOE_DELAYS_PER_PHS : natural;
MEM_IF_CLK_PS : natural;
-- initial mode register settings
PHY_DEF_MR_1ST : std_logic_vector(15 downto 0);
PHY_DEF_MR_2ND : std_logic_vector(15 downto 0);
PHY_DEF_MR_3RD : std_logic_vector(15 downto 0);
PHY_DEF_MR_4TH : std_logic_vector(15 downto 0);
PRESET_RLAT : natural; -- read latency preset value
CAPABILITIES : natural; -- sequencer capabilities flags
USE_IRAM : std_logic; -- RFU
IRAM_AWIDTH : natural;
TRACKING_INTERVAL_IN_MS : natural;
READ_LAT_WIDTH : natural
);
port (
-- clk / reset
clk : in std_logic;
rst_n : in std_logic;
--synchronous Avalon debug interface (internally re-synchronised to input clock)
dbg_seq_clk : in std_logic;
dbg_seq_rst_n : in std_logic;
dbg_seq_addr : in std_logic_vector(AV_IF_ADDR_WIDTH -1 downto 0);
dbg_seq_wr : in std_logic;
dbg_seq_rd : in std_logic;
dbg_seq_cs : in std_logic;
dbg_seq_wr_data : in std_logic_vector(31 downto 0);
seq_dbg_rd_data : out std_logic_vector(31 downto 0);
seq_dbg_waitrequest : out std_logic;
-- mmi to admin interface
regs_admin_ctrl : out t_admin_ctrl;
admin_regs_status : in t_admin_stat;
trefi_failure : in std_logic;
-- mmi to iram interface
mmi_iram : out t_iram_ctrl;
mmi_iram_enable_writes : out std_logic;
iram_status : in t_iram_stat;
-- mmi to control interface
mmi_ctrl : out t_mmi_ctrl;
ctrl_mmi : in t_ctrl_mmi;
int_ac_1t : in std_logic;
invert_ac_1t : out std_logic;
-- global parameterisation record
parameterisation_rec : out t_algm_paramaterisation;
-- mmi pll interface
pll_mmi : in t_pll_mmi;
mmi_pll : out t_mmi_pll_reconfig;
-- codvw status signals
dgrb_mmi : in t_dgrb_mmi
);
end entity;
library work;
-- The registers package (alt_mem_phy_regs_pkg) is used to combine the definition of the
-- registers for the mmi status registers and functions/procedures applied to the registers
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg.all;
-- The iram address package (alt_mem_phy_iram_addr_pkg) is used to define the base addresses used
-- for iram writes during calibration
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg.all;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_mmi IS
-- maximum function
function max (a, b : natural) return natural is
begin
if a > b then
return a;
else
return b;
end if;
end function;
-- -------------------------------------------
-- constant definitions
-- -------------------------------------------
constant c_pll_360_sweeps : natural := rrp_pll_phase_mult(DWIDTH_RATIO, MEM_IF_DQS_CAPTURE);
constant c_response_lat : natural := 6;
constant c_codeword : std_logic_vector(31 downto 0) := c_mmi_access_codeword;
constant c_int_iram_start_size : natural := max(IRAM_AWIDTH, 4);
-- enable for ctrl state machine states
constant c_slv_hl_stage_enable : std_logic_vector(31 downto 0) := std_logic_vector(to_unsigned(CAPABILITIES, 32));
constant c_hl_stage_enable : std_logic_vector(c_hl_ccs_num_stages-1 downto 0) := c_slv_hl_stage_enable(c_hl_ccs_num_stages-1 downto 0);
-- a prefix for all report signals to identify phy and sequencer block
--
constant mmi_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (mmi) : ";
-- --------------------------------------------
-- internal signals
-- --------------------------------------------
-- internal clock domain register interface signals
signal int_wdata : std_logic_vector(31 downto 0);
signal int_rdata : std_logic_vector(31 downto 0);
signal int_address : std_logic_vector(AV_IF_ADDR_WIDTH-1 downto 0);
signal int_read : std_logic;
signal int_cs : std_logic;
signal int_write : std_logic;
signal waitreq_int : std_logic;
-- register storage
-- contains:
-- read only (ro_regs)
-- read/write (rw_regs)
-- enable_writes flag
signal mmi_regs : t_mmi_regs := defaults;
signal mmi_rw_regs_initialised : std_logic;
-- this counter ensures that the mmi waits for c_response_lat clocks before
-- responding to a new Avalon request
signal waitreq_count : natural range 0 to 15;
signal waitreq_count_is_zero : std_logic;
-- register error signals
signal int_ac_1t_r : std_logic;
signal trefi_failure_r : std_logic;
-- iram ready - calibration complete and USE_IRAM high
signal iram_ready : std_logic;
begin -- architecture struct
-- the following signals are reserved for future use
invert_ac_1t <= '0';
-- --------------------------------------------------------------
-- generate for synchronous avalon interface
-- --------------------------------------------------------------
simply_registered_avalon : if RESYNCHRONISE_AVALON_DBG = 0 generate
begin
process (rst_n, clk)
begin
if rst_n = '0' then
int_wdata <= (others => '0');
int_address <= (others => '0');
int_read <= '0';
int_write <= '0';
int_cs <= '0';
elsif rising_edge(clk) then
int_wdata <= dbg_seq_wr_data;
int_address <= dbg_seq_addr;
int_read <= dbg_seq_rd;
int_write <= dbg_seq_wr;
int_cs <= dbg_seq_cs;
end if;
end process;
seq_dbg_rd_data <= int_rdata;
seq_dbg_waitrequest <= waitreq_int and (dbg_seq_rd or dbg_seq_wr) and dbg_seq_cs;
end generate simply_registered_avalon;
-- --------------------------------------------------------------
-- clock domain crossing for asynchronous mmi interface
-- --------------------------------------------------------------
re_synchronise_avalon : if RESYNCHRONISE_AVALON_DBG = 1 generate
--clock domain crossing signals
signal ccd_new_cmd : std_logic;
signal ccd_new_cmd_ack : std_logic;
signal ccd_cmd_done : std_logic;
signal ccd_cmd_done_ack : std_logic;
signal ccd_rd_data : std_logic_vector(dbg_seq_wr_data'range);
signal ccd_cmd_done_ack_t : std_logic;
signal ccd_cmd_done_ack_2t : std_logic;
signal ccd_cmd_done_ack_3t : std_logic;
signal ccd_cmd_done_t : std_logic;
signal ccd_cmd_done_2t : std_logic;
signal ccd_cmd_done_3t : std_logic;
signal ccd_new_cmd_t : std_logic;
signal ccd_new_cmd_2t : std_logic;
signal ccd_new_cmd_3t : std_logic;
signal ccd_new_cmd_ack_t : std_logic;
signal ccd_new_cmd_ack_2t : std_logic;
signal ccd_new_cmd_ack_3t : std_logic;
signal cmd_pending : std_logic;
signal seq_clk_waitreq_int : std_logic;
begin
process (rst_n, clk)
begin
if rst_n = '0' then
int_wdata <= (others => '0');
int_address <= (others => '0');
int_read <= '0';
int_write <= '0';
int_cs <= '0';
ccd_new_cmd_ack <= '0';
ccd_new_cmd_t <= '0';
ccd_new_cmd_2t <= '0';
ccd_new_cmd_3t <= '0';
elsif rising_edge(clk) then
ccd_new_cmd_t <= ccd_new_cmd;
ccd_new_cmd_2t <= ccd_new_cmd_t;
ccd_new_cmd_3t <= ccd_new_cmd_2t;
if ccd_new_cmd_3t = '0' and ccd_new_cmd_2t = '1' then
int_wdata <= dbg_seq_wr_data;
int_address <= dbg_seq_addr;
int_read <= dbg_seq_rd;
int_write <= dbg_seq_wr;
int_cs <= '1';
ccd_new_cmd_ack <= '1';
elsif ccd_new_cmd_3t = '1' and ccd_new_cmd_2t = '0' then
ccd_new_cmd_ack <= '0';
end if;
if int_cs = '1' and waitreq_int= '0' then
int_cs <= '0';
int_read <= '0';
int_write <= '0';
end if;
end if;
end process;
-- process to generate new cmd
process (dbg_seq_rst_n, dbg_seq_clk)
begin
if dbg_seq_rst_n = '0' then
ccd_new_cmd <= '0';
ccd_new_cmd_ack_t <= '0';
ccd_new_cmd_ack_2t <= '0';
ccd_new_cmd_ack_3t <= '0';
cmd_pending <= '0';
elsif rising_edge(dbg_seq_clk) then
ccd_new_cmd_ack_t <= ccd_new_cmd_ack;
ccd_new_cmd_ack_2t <= ccd_new_cmd_ack_t;
ccd_new_cmd_ack_3t <= ccd_new_cmd_ack_2t;
if ccd_new_cmd = '0' and dbg_seq_cs = '1' and cmd_pending = '0' then
ccd_new_cmd <= '1';
cmd_pending <= '1';
elsif ccd_new_cmd_ack_2t = '1' and ccd_new_cmd_ack_3t = '0' then
ccd_new_cmd <= '0';
end if;
-- use falling edge of cmd_done
if cmd_pending = '1' and ccd_cmd_done_2t = '0' and ccd_cmd_done_3t = '1' then
cmd_pending <= '0';
end if;
end if;
end process;
-- process to take read data back and transfer it across the clock domains
process (rst_n, clk)
begin
if rst_n = '0' then
ccd_cmd_done <= '0';
ccd_rd_data <= (others => '0');
ccd_cmd_done_ack_3t <= '0';
ccd_cmd_done_ack_2t <= '0';
ccd_cmd_done_ack_t <= '0';
elsif rising_edge(clk) then
if ccd_cmd_done_ack_2t = '1' and ccd_cmd_done_ack_3t = '0' then
ccd_cmd_done <= '0';
elsif waitreq_int = '0' then
ccd_cmd_done <= '1';
ccd_rd_data <= int_rdata;
end if;
ccd_cmd_done_ack_3t <= ccd_cmd_done_ack_2t;
ccd_cmd_done_ack_2t <= ccd_cmd_done_ack_t;
ccd_cmd_done_ack_t <= ccd_cmd_done_ack;
end if;
end process;
process (dbg_seq_rst_n, dbg_seq_clk)
begin
if dbg_seq_rst_n = '0' then
ccd_cmd_done_ack <= '0';
ccd_cmd_done_3t <= '0';
ccd_cmd_done_2t <= '0';
ccd_cmd_done_t <= '0';
seq_dbg_rd_data <= (others => '0');
seq_clk_waitreq_int <= '1';
elsif rising_edge(dbg_seq_clk) then
seq_clk_waitreq_int <= '1';
if ccd_cmd_done_2t = '1' and ccd_cmd_done_3t = '0' then
seq_clk_waitreq_int <= '0';
ccd_cmd_done_ack <= '1';
seq_dbg_rd_data <= ccd_rd_data; -- if read
elsif ccd_cmd_done_2t = '0' and ccd_cmd_done_3t = '1' then
ccd_cmd_done_ack <= '0';
end if;
ccd_cmd_done_3t <= ccd_cmd_done_2t;
ccd_cmd_done_2t <= ccd_cmd_done_t;
ccd_cmd_done_t <= ccd_cmd_done;
end if;
end process;
seq_dbg_waitrequest <= seq_clk_waitreq_int and (dbg_seq_rd or dbg_seq_wr) and dbg_seq_cs;
end generate re_synchronise_avalon;
-- register some inputs for speed.
process (rst_n, clk)
begin
if rst_n = '0' then
int_ac_1t_r <= '0';
trefi_failure_r <= '0';
elsif rising_edge(clk) then
int_ac_1t_r <= int_ac_1t;
trefi_failure_r <= trefi_failure;
end if;
end process;
-- mmi not able to write to iram in current instance of mmi block
mmi_iram_enable_writes <= '0';
-- check if iram ready
process (rst_n, clk)
begin
if rst_n = '0' then
iram_ready <= '0';
elsif rising_edge(clk) then
if USE_IRAM = '0' then
iram_ready <= '0';
else
if ctrl_mmi.ctrl_calibration_success = '1' or ctrl_mmi.ctrl_calibration_fail = '1' then
iram_ready <= '1';
else
iram_ready <= '0';
end if;
end if;
end if;
end process;
-- --------------------------------------------------------------
-- single registered process for mmi access.
-- --------------------------------------------------------------
process (rst_n, clk)
variable v_mmi_regs : t_mmi_regs;
begin
if rst_n = '0' then
mmi_regs <= defaults;
mmi_rw_regs_initialised <= '0';
-- this register records whether the c_codeword has been written to address 0x0001
-- once it has, then other writes are accepted.
mmi_regs.enable_writes <= '0';
int_rdata <= (others => '0');
waitreq_int <= '1';
-- clear wait request counter
waitreq_count <= 0;
waitreq_count_is_zero <= '1';
-- iram interface defaults
mmi_iram <= defaults;
elsif rising_edge(clk) then
-- default assignment
waitreq_int <= '1';
write_clear(mmi_regs.rw_regs);
-- only initialise rw_regs once after hard reset
if mmi_rw_regs_initialised = '0' then
mmi_rw_regs_initialised <= '1';
--reset all read/write regs and read path ouput registers and apply default MRS Settings.
mmi_regs.rw_regs <= defaults(PHY_DEF_MR_1ST,
PHY_DEF_MR_2ND,
PHY_DEF_MR_3RD,
PHY_DEF_MR_4TH,
NOM_DQS_PHASE_SETTING,
PLL_STEPS_PER_CYCLE,
c_pll_360_sweeps, -- number of times 360 degrees is swept
TRACKING_INTERVAL_IN_MS,
c_hl_stage_enable);
end if;
-- bit packing input data structures into the ro_regs structure, for reading
mmi_regs.ro_regs <= defaults(dgrb_mmi,
ctrl_mmi,
pll_mmi,
mmi_regs.rw_regs.rw_if_test,
USE_IRAM,
MEM_IF_DQS_CAPTURE,
int_ac_1t_r,
trefi_failure_r,
iram_status,
IRAM_AWIDTH);
-- write has priority over read
if int_write = '1' and int_cs = '1' and waitreq_count_is_zero = '1' and waitreq_int = '1' then
-- mmi local register write
if to_integer(unsigned(int_address(int_address'high downto 4))) = 0 then
v_mmi_regs := mmi_regs;
write(v_mmi_regs, to_integer(unsigned(int_address(3 downto 0))), int_wdata);
if mmi_regs.enable_writes = '1' then
v_mmi_regs.rw_regs.rw_hl_css.hl_css := c_hl_stage_enable or v_mmi_regs.rw_regs.rw_hl_css.hl_css;
end if;
mmi_regs <= v_mmi_regs;
-- handshake for safe transactions
waitreq_int <= '0';
waitreq_count <= c_response_lat;
-- iram write just handshake back (no write supported)
else
waitreq_int <= '0';
waitreq_count <= c_response_lat;
end if;
elsif int_read = '1' and int_cs = '1' and waitreq_count_is_zero = '1' and waitreq_int = '1' then
-- mmi local register read
if to_integer(unsigned(int_address(int_address'high downto 4))) = 0 then
int_rdata <= read(mmi_regs, to_integer(unsigned(int_address(3 downto 0))));
waitreq_count <= c_response_lat;
waitreq_int <= '0'; -- acknowledge read command regardless.
-- iram being addressed
elsif to_integer(unsigned(int_address(int_address'high downto c_int_iram_start_size))) = 1
and iram_ready = '1'
then
mmi_iram.read <= '1';
mmi_iram.addr <= to_integer(unsigned(int_address(IRAM_AWIDTH -1 downto 0)));
if iram_status.done = '1' then
waitreq_int <= '0';
mmi_iram.read <= '0';
waitreq_count <= c_response_lat;
int_rdata <= iram_status.rdata;
end if;
else -- respond and keep the interface from hanging
int_rdata <= x"DEADBEEF";
waitreq_int <= '0';
waitreq_count <= c_response_lat;
end if;
elsif waitreq_count /= 0 then
waitreq_count <= waitreq_count -1;
-- if performing a write, set back to defaults. If not, default anyway
mmi_iram <= defaults;
end if;
if waitreq_count = 1 or waitreq_count = 0 then
waitreq_count_is_zero <= '1'; -- as it will be next clock cycle
else
waitreq_count_is_zero <= '0';
end if;
-- supply iram read data when ready
if iram_status.done = '1' then
int_rdata <= iram_status.rdata;
end if;
end if;
end process;
-- pack the registers into the output data structures
regs_admin_ctrl <= pack_record(mmi_regs.rw_regs);
parameterisation_rec <= pack_record(mmi_regs.rw_regs);
mmi_pll <= pack_record(mmi_regs.rw_regs);
mmi_ctrl <= pack_record(mmi_regs.rw_regs);
end architecture struct;
--
-- -----------------------------------------------------------------------------
-- Abstract : admin block for the non-levelling AFI PHY sequencer
-- The admin block supports the autonomy of the sequencer from
-- the memory interface controller. In this task admin handles
-- memory initialisation (incl. the setting of mode registers)
-- and memory refresh, bank activation and pre-charge commands
-- (during memory interface calibration). Once calibration is
-- complete admin is 'idle' and control of the memory device is
-- passed to the users chosen memory interface controller. The
-- supported memory types are exclusively DDR, DDR2 and DDR3.
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The address and command package (alt_mem_phy_addr_cmd_pkg) is used to combine DRAM address
-- and command signals in one record and unify the functions operating on this record.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_admin is
generic (
-- physical interface width definitions
MEM_IF_DQS_WIDTH : natural;
MEM_IF_DWIDTH : natural;
MEM_IF_DM_WIDTH : natural;
MEM_IF_DQ_PER_DQS : natural;
DWIDTH_RATIO : natural;
CLOCK_INDEX_WIDTH : natural;
MEM_IF_CLK_PAIR_COUNT : natural;
MEM_IF_ADDR_WIDTH : natural;
MEM_IF_BANKADDR_WIDTH : natural;
MEM_IF_NUM_RANKS : natural;
ADV_LAT_WIDTH : natural;
MEM_IF_DQSN_EN : natural;
MEM_IF_MEMTYPE : string;
-- calibration address information
MEM_IF_CAL_BANK : natural; -- Bank to which calibration data is written
MEM_IF_CAL_BASE_ROW : natural;
GENERATE_ADDITIONAL_DBG_RTL : natural;
NON_OP_EVAL_MD : string; -- non_operational evaluation mode (used when GENERATE_ADDITIONAL_DBG_RTL = 1)
-- timing parameters
MEM_IF_CLK_PS : natural;
TINIT_TCK : natural; -- initial delay
TINIT_RST : natural -- used for DDR3 device support
);
port (
-- clk / reset
clk : in std_logic;
rst_n : in std_logic;
-- the 2 signals below are unused for non-levelled sequencer (maintained for equivalent interface to levelled sequencer)
mem_ac_swapped_ranks : in std_logic_vector(MEM_IF_NUM_RANKS - 1 downto 0);
ctl_cal_byte_lanes : in std_logic_vector(MEM_IF_NUM_RANKS * MEM_IF_DQS_WIDTH - 1 downto 0);
-- addr/cmd interface
seq_ac : out t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
seq_ac_sel : out std_logic;
-- determined from MR settings
enable_odt : out std_logic;
-- interface to the mmi block
regs_admin_ctrl_rec : in t_admin_ctrl;
admin_regs_status_rec : out t_admin_stat;
trefi_failure : out std_logic;
-- interface to the ctrl block
ctrl_admin : in t_ctrl_command;
admin_ctrl : out t_ctrl_stat;
-- interface with dgrb/dgwb blocks
ac_access_req : in std_logic;
ac_access_gnt : out std_logic;
-- calibration status signals (from ctrl block)
cal_fail : in std_logic;
cal_success : in std_logic;
-- recalibrate request issued
ctl_recalibrate_req : in std_logic
);
end entity;
library work;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_admin is
constant c_max_mode_reg_index : natural := 12;
-- timing below is safe for range 80-400MHz operation - taken from worst case DDR2 (JEDEC JESD79-2E) / DDR3 (JESD79-3B)
-- Note: timings account for worst case use for both full rate and half rate ALTMEMPHY interfaces
constant c_init_prech_delay : natural := 162; -- precharge delay (360ns = tRFC+10ns) (TXPR for DDR3)
constant c_trp_in_clks : natural := 8; -- set equal to trp / tck (trp = 15ns)
constant c_tmrd_in_clks : natural := 4; -- maximum 4 clock cycles (DDR3)
constant c_tmod_in_clks : natural := 8; -- ODT update from MRS command (tmod = 12ns (DDR2))
constant c_trrd_min_in_clks : natural := 4; -- minimum clk cycles between bank activate cmds (10ns)
constant c_trcd_min_in_clks : natural := 8; -- minimum bank activate to read/write cmd (15ns)
-- the 2 constants below are parameterised to MEM_IF_CLK_PS due to the large range of possible clock frequency
constant c_trfc_min_in_clks : natural := (350000/MEM_IF_CLK_PS)/(DWIDTH_RATIO/2) + 2; -- refresh-refresh timing (worst case trfc = 350 ns (DDR3))
constant c_trefi_min_in_clks : natural := (3900000/MEM_IF_CLK_PS)/(DWIDTH_RATIO/2) - 2; -- average refresh interval worst case trefi = 3.9 us (industrial grade devices)
constant c_max_num_stacked_refreshes : natural := 8; -- max no. of stacked refreshes allowed
constant c_max_wait_value : natural := 4; -- delay before moving from s_idle to s_refresh_state
-- DDR3 specific:
constant c_zq_init_duration_clks : natural := 514; -- full rate (worst case) cycle count for tZQCL init
constant c_tzqcs : natural := 66; -- number of full rate clock cycles
-- below is a record which is used to parameterise the address and command signals (addr_cmd) used in this block
constant c_seq_addr_cmd_config : t_addr_cmd_config_rec := set_config_rec(MEM_IF_ADDR_WIDTH, MEM_IF_BANKADDR_WIDTH, MEM_IF_NUM_RANKS, DWIDTH_RATIO, MEM_IF_MEMTYPE);
-- a prefix for all report signals to identify phy and sequencer block
--
constant admin_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (admin) : ";
-- state type for admin_state (main state machine of admin block)
type t_admin_state is
(
s_reset, -- reset state
s_run_init_seq, -- run the initialisation sequence (up to but not including MR setting)
s_program_cal_mrs, -- program the mode registers ready for calibration (this is the user settings
-- with some overloads and extra init functionality)
s_idle, -- idle (i.e. maintaining refresh to max)
s_topup_refresh, -- make sure refreshes are maxed out before going on.
s_topup_refresh_done, -- wait for tRFC after refresh command
s_zq_cal_short, -- ZQCAL short command (issued prior to activate) - DDR3 only
s_access_act, -- activate
s_access, -- dgrb, dgwb accesses,
s_access_precharge, -- precharge all memory banks
s_prog_user_mrs, -- program user mode register settings
s_dummy_wait, -- wait before going to s_refresh state
s_refresh, -- issue a memory refresh command
s_refresh_done, -- wait for trfc after refresh command
s_non_operational -- special debug state to toggle interface if calibration fails
);
signal state : t_admin_state; -- admin block state machine
-- state type for ac_state
type t_ac_state is
( s_0 ,
s_1 ,
s_2 ,
s_3 ,
s_4 ,
s_5 ,
s_6 ,
s_7 ,
s_8 ,
s_9 ,
s_10,
s_11,
s_12,
s_13,
s_14);
-- enforce one-hot fsm encoding
attribute syn_encoding : string;
attribute syn_encoding of t_ac_state : TYPE is "one-hot";
signal ac_state : t_ac_state; -- state machine for sub-states of t_admin_state states
signal stage_counter : natural range 0 to 2**18 - 1; -- counter to support memory timing delays
signal stage_counter_zero : std_logic;
signal addr_cmd : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1); -- internal copy of output DRAM addr/cmd signals
signal mem_init_complete : std_logic; -- signifies memory initialisation is complete
signal cal_complete : std_logic; -- calibration complete (equals: cal_success OR cal_fail)
signal int_mr0 : std_logic_vector(regs_admin_ctrl_rec.mr0'range); -- an internal copy of mode register settings
signal int_mr1 : std_logic_vector(regs_admin_ctrl_rec.mr0'range);
signal int_mr2 : std_logic_vector(regs_admin_ctrl_rec.mr0'range);
signal int_mr3 : std_logic_vector(regs_admin_ctrl_rec.mr0'range);
signal refresh_count : natural range c_trefi_min_in_clks downto 0; -- determine when refresh is due
signal refresh_due : std_logic; -- need to do a refresh now
signal refresh_done : std_logic; -- pulse when refresh complete
signal num_stacked_refreshes : natural range 0 to c_max_num_stacked_refreshes - 1; -- can stack upto 8 refreshes (for DDR2)
signal refreshes_maxed : std_logic; -- signal refreshes are maxed out
signal initial_refresh_issued : std_logic; -- to start the refresh counter off
signal ctrl_rec : t_ctrl_command;
-- last state logic
signal command_started : std_logic; -- provides a pulse when admin starts processing a command
signal command_done : std_logic; -- provides a pulse when admin completes processing a command is completed
signal finished_state : std_logic; -- finished current t_admin_state state
signal admin_req_extended : std_logic; -- keep requests for this block asserted until it is an ack is asserted
signal current_cs : natural range 0 to MEM_IF_NUM_RANKS - 1; -- which chip select being programmed at this instance
signal per_cs_init_seen : std_logic_vector(MEM_IF_NUM_RANKS - 1 downto 0);
-- some signals to enable non_operational debug (optimised away if GENERATE_ADDITIONAL_DBG_RTL = 0)
signal nop_toggle_signal : t_addr_cmd_signals;
signal nop_toggle_pin : natural range 0 to MEM_IF_ADDR_WIDTH - 1; -- track which pin in a signal to toggle
signal nop_toggle_value : std_logic;
begin -- architecture struct
-- concurrent assignment of internal addr_cmd to output port seq_ac
process (addr_cmd)
begin
seq_ac <= addr_cmd;
end process;
-- generate calibration complete signal
process (cal_success, cal_fail)
begin
cal_complete <= cal_success or cal_fail;
end process;
-- register the control command record
process (clk, rst_n)
begin
if rst_n = '0' then
ctrl_rec <= defaults;
elsif rising_edge(clk) then
ctrl_rec <= ctrl_admin;
end if;
end process;
-- extend the admin block request until ack is asserted
process (clk, rst_n)
begin
if rst_n = '0' then
admin_req_extended <= '0';
elsif rising_edge(clk) then
if ( (ctrl_rec.command_req = '1') and ( curr_active_block(ctrl_rec.command) = admin) ) then
admin_req_extended <= '1';
elsif command_started = '1' then -- this is effectively a copy of command_ack generation
admin_req_extended <= '0';
end if;
end if;
end process;
-- generate the current_cs signal to track which cs accessed by PHY at any instance
process (clk, rst_n)
begin
if rst_n = '0' then
current_cs <= 0;
elsif rising_edge(clk) then
if ctrl_rec.command_req = '1' then
current_cs <= ctrl_rec.command_op.current_cs;
end if;
end if;
end process;
-- -----------------------------------------------------------------------------
-- refresh logic: DDR/DDR2/DDR3 allows upto 8 refreshes to be "stacked" or queued up.
-- In the idle state, will ensure refreshes are issued when necessary. Then,
-- when an access_request is received, 7 topup refreshes will be done to max out
-- the number of queued refreshes. That way, we know we have the maximum time
-- available before another refresh is due.
-- -----------------------------------------------------------------------------
-- initial_refresh_issued flag: used to sync refresh_count
process (clk, rst_n)
begin
if rst_n = '0' then
initial_refresh_issued <= '0';
elsif rising_edge(clk) then
if cal_complete = '1' then
initial_refresh_issued <= '0';
else
if state = s_refresh_done or
state = s_topup_refresh_done then
initial_refresh_issued <= '1';
end if;
end if;
end if;
end process;
-- refresh timer: used to work out when a refresh is due
process (clk, rst_n)
begin
if rst_n = '0' then
refresh_count <= c_trefi_min_in_clks;
elsif rising_edge(clk) then
if cal_complete = '1' then
refresh_count <= c_trefi_min_in_clks;
else
if refresh_count = 0 or
initial_refresh_issued = '0' or
(refreshes_maxed = '1' and refresh_done = '1') then -- if refresh issued when already maxed
refresh_count <= c_trefi_min_in_clks;
else
refresh_count <= refresh_count - 1;
end if;
end if;
end if;
end process;
-- refresh_due generation: 1 cycle pulse to indicate that c_trefi_min_in_clks has elapsed, and
-- therefore a refresh is due
process (clk, rst_n)
begin
if rst_n = '0' then
refresh_due <= '0';
elsif rising_edge(clk) then
if refresh_count = 0 and cal_complete = '0' then
refresh_due <= '1';
else
refresh_due <= '0';
end if;
end if;
end process;
-- counter to keep track of number of refreshes "stacked". NB: Up to 8
-- refreshes can be stacked.
process (clk, rst_n)
begin
if rst_n = '0' then
num_stacked_refreshes <= 0;
trefi_failure <= '0'; -- default no trefi failure
elsif rising_edge (clk) then
if state = s_reset then
trefi_failure <= '0'; -- default no trefi failure (in restart)
end if;
if cal_complete = '1' then
num_stacked_refreshes <= 0;
else
if refresh_due = '1' and num_stacked_refreshes /= 0 then
num_stacked_refreshes <= num_stacked_refreshes - 1;
elsif refresh_done = '1' and num_stacked_refreshes /= c_max_num_stacked_refreshes - 1 then
num_stacked_refreshes <= num_stacked_refreshes + 1;
end if;
-- debug message if stacked refreshes are depleted and refresh is due
if refresh_due = '1' and num_stacked_refreshes = 0 and initial_refresh_issued = '1' then
report admin_report_prefix & "error refresh is due and num_stacked_refreshes is zero" severity error;
trefi_failure <= '1'; -- persist
end if;
end if;
end if;
end process;
-- generate signal to state if refreshes are maxed out
process (clk, rst_n)
begin
if rst_n = '0' then
refreshes_maxed <= '0';
elsif rising_edge (clk) then
if num_stacked_refreshes < c_max_num_stacked_refreshes - 1 then
refreshes_maxed <= '0';
else
refreshes_maxed <= '1';
end if;
end if;
end process;
-- ----------------------------------------------------
-- Mode register selection
-- -----------------------------------------------------
int_mr0(regs_admin_ctrl_rec.mr0'range) <= regs_admin_ctrl_rec.mr0;
int_mr1(regs_admin_ctrl_rec.mr1'range) <= regs_admin_ctrl_rec.mr1;
int_mr2(regs_admin_ctrl_rec.mr2'range) <= regs_admin_ctrl_rec.mr2;
int_mr3(regs_admin_ctrl_rec.mr3'range) <= regs_admin_ctrl_rec.mr3;
-- -------------------------------------------------------
-- State machine
-- -------------------------------------------------------
process(rst_n, clk)
begin
if rst_n = '0' then
state <= s_reset;
command_done <= '0';
command_started <= '0';
elsif rising_edge(clk) then
-- Last state logic
command_done <= '0';
command_started <= '0';
case state is
when s_reset |
s_non_operational =>
if ctrl_rec.command = cmd_init_dram and admin_req_extended = '1' then
state <= s_run_init_seq;
command_started <= '1';
end if;
when s_run_init_seq =>
if finished_state = '1' then
state <= s_idle;
command_done <= '1';
end if;
when s_program_cal_mrs =>
if finished_state = '1' then
if refreshes_maxed = '0' and mem_init_complete = '1' then -- only refresh if all ranks initialised
state <= s_topup_refresh;
else
state <= s_idle;
end if;
command_done <= '1';
end if;
when s_idle =>
if ac_access_req = '1' then
state <= s_topup_refresh;
elsif ctrl_rec.command = cmd_init_dram and admin_req_extended = '1' then -- start initialisation sequence
state <= s_run_init_seq;
command_started <= '1';
elsif ctrl_rec.command = cmd_prog_cal_mr and admin_req_extended = '1' then -- program mode registers (used for >1 chip select)
state <= s_program_cal_mrs;
command_started <= '1';
-- always enter s_prog_user_mrs via topup refresh
elsif ctrl_rec.command = cmd_prep_customer_mr_setup and admin_req_extended = '1' then
state <= s_topup_refresh;
elsif refreshes_maxed = '0' and mem_init_complete = '1' then -- only refresh once all ranks initialised
state <= s_dummy_wait;
end if;
when s_dummy_wait =>
if finished_state = '1' then
state <= s_refresh;
end if;
when s_topup_refresh =>
if finished_state = '1' then
state <= s_topup_refresh_done;
end if;
when s_topup_refresh_done =>
if finished_state = '1' then -- to ensure trfc is not violated
if refreshes_maxed = '0' then
state <= s_topup_refresh;
elsif ctrl_rec.command = cmd_prep_customer_mr_setup and admin_req_extended = '1' then
state <= s_prog_user_mrs;
command_started <= '1';
elsif ac_access_req = '1' then
if MEM_IF_MEMTYPE = "DDR3" then
state <= s_zq_cal_short;
else
state <= s_access_act;
end if;
else
state <= s_idle;
end if;
end if;
when s_zq_cal_short => -- DDR3 only
if finished_state = '1' then
state <= s_access_act;
end if;
when s_access_act =>
if finished_state = '1' then
state <= s_access;
end if;
when s_access =>
if ac_access_req = '0' then
state <= s_access_precharge;
end if;
when s_access_precharge =>
-- ensure precharge all timer has elapsed.
if finished_state = '1' then
state <= s_idle;
end if;
when s_prog_user_mrs =>
if finished_state = '1' then
state <= s_idle;
command_done <= '1';
end if;
when s_refresh =>
if finished_state = '1' then
state <= s_refresh_done;
end if;
when s_refresh_done =>
if finished_state = '1' then -- to ensure trfc is not violated
if refreshes_maxed = '0' then
state <= s_refresh;
else
state <= s_idle;
end if;
end if;
when others =>
state <= s_reset;
end case;
if cal_complete = '1' then
state <= s_idle;
if GENERATE_ADDITIONAL_DBG_RTL = 1 and cal_success = '0' then
state <= s_non_operational; -- if calibration failed and debug enabled then toggle pins in pre-defined pattern
end if;
end if;
-- if recalibrating then put admin in reset state to
-- avoid issuing refresh commands when not needed
if ctl_recalibrate_req = '1' then
state <= s_reset;
end if;
end if;
end process;
-- --------------------------------------------------
-- process to generate initialisation complete
-- --------------------------------------------------
process (rst_n, clk)
begin
if rst_n = '0' then
mem_init_complete <= '0';
elsif rising_edge(clk) then
if to_integer(unsigned(per_cs_init_seen)) = 2**MEM_IF_NUM_RANKS - 1 then
mem_init_complete <= '1';
else
mem_init_complete <= '0';
end if;
end if;
end process;
-- --------------------------------------------------
-- process to generate addr/cmd.
-- --------------------------------------------------
process(rst_n, clk)
variable v_mr_overload : std_logic_vector(regs_admin_ctrl_rec.mr0'range);
-- required for non_operational state only
variable v_nop_ac_0 : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
variable v_nop_ac_1 : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
begin
if rst_n = '0' then
ac_state <= s_0;
stage_counter <= 0;
stage_counter_zero <= '1';
finished_state <= '0';
seq_ac_sel <= '1';
refresh_done <= '0';
per_cs_init_seen <= (others => '0');
addr_cmd <= int_pup_reset(c_seq_addr_cmd_config);
if GENERATE_ADDITIONAL_DBG_RTL = 1 then
nop_toggle_signal <= addr;
nop_toggle_pin <= 0;
nop_toggle_value <= '0';
end if;
elsif rising_edge(clk) then
finished_state <= '0';
refresh_done <= '0';
-- address / command path control
-- if seq_ac_sel = 1 then sequencer has control of a/c
-- if seq_ac_sel = 0 then memory controller has control of a/c
seq_ac_sel <= '1';
if cal_complete = '1' then
if cal_success = '1' or
GENERATE_ADDITIONAL_DBG_RTL = 0 then -- hand over interface if cal successful or no debug enabled
seq_ac_sel <= '0';
end if;
end if;
-- if recalibration request then take control of a/c path
if ctl_recalibrate_req = '1' then
seq_ac_sel <= '1';
end if;
if state = s_reset then
addr_cmd <= reset(c_seq_addr_cmd_config);
stage_counter <= 0;
elsif state /= s_run_init_seq and
state /= s_non_operational then
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
end if;
if (stage_counter = 1 or stage_counter = 0) then
stage_counter_zero <= '1';
else
stage_counter_zero <= '0';
end if;
if stage_counter_zero /= '1' and state /= s_reset then
stage_counter <= stage_counter -1;
else
stage_counter_zero <= '0';
case state is
when s_run_init_seq =>
per_cs_init_seen <= (others => '0'); -- per cs test
if MEM_IF_MEMTYPE = "DDR" or MEM_IF_MEMTYPE = "DDR2" then
case ac_state is
-- JEDEC (JESD79-2E) stage c
when s_0 to s_9 =>
ac_state <= t_ac_state'succ(ac_state);
stage_counter <= (TINIT_TCK/10)+1;
addr_cmd <= maintain_pd_or_sr(c_seq_addr_cmd_config,
deselect(c_seq_addr_cmd_config, addr_cmd),
2**MEM_IF_NUM_RANKS -1);
-- JEDEC (JESD79-2E) stage d
when s_10 =>
ac_state <= s_11;
stage_counter <= c_init_prech_delay;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
when s_11 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
-- finish sequence by going into s_program_cal_mrs state
when others =>
ac_state <= s_0;
end case;
elsif MEM_IF_MEMTYPE = "DDR3" then -- DDR3 specific initialisation sequence
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= TINIT_RST + 1;
addr_cmd <= reset(c_seq_addr_cmd_config);
when s_1 to s_10 =>
ac_state <= t_ac_state'succ(ac_state);
stage_counter <= (TINIT_TCK/10) + 1;
addr_cmd <= maintain_pd_or_sr(c_seq_addr_cmd_config,
deselect(c_seq_addr_cmd_config, addr_cmd),
2**MEM_IF_NUM_RANKS -1);
when s_11 =>
ac_state <= s_12;
stage_counter <= c_init_prech_delay;
addr_cmd <= deselect(c_seq_addr_cmd_config, addr_cmd);
when s_12 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
-- finish sequence by going into s_program_cal_mrs state
when others =>
ac_state <= s_0;
end case;
else
report admin_report_prefix & "unsupported memory type specified" severity error;
end if;
-- end of initialisation sequence
when s_program_cal_mrs =>
if MEM_IF_MEMTYPE = "DDR2" then -- DDR2 style mode register settings
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= 1;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
-- JEDEC (JESD79-2E) stage d
when s_1 =>
ac_state <= s_2;
stage_counter <= c_trp_in_clks;
addr_cmd <= precharge_all(c_seq_addr_cmd_config, -- configuration
2**current_cs); -- rank
-- JEDEC (JESD79-2E) stage e
when s_2 =>
ac_state <= s_3;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
2, -- mode register number
int_mr2(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
-- JEDEC (JESD79-2E) stage f
when s_3 =>
ac_state <= s_4;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
3, -- mode register number
int_mr3(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
-- JEDEC (JESD79-2E) stage g
when s_4 =>
ac_state <= s_5;
stage_counter <= c_tmrd_in_clks;
v_mr_overload := int_mr1(c_max_mode_reg_index downto 0);
v_mr_overload(0) := '0'; -- override DLL enable
v_mr_overload(9 downto 7) := "000"; -- required in JESD79-2E (but not in JESD79-2B)
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
1, -- mode register number
v_mr_overload , -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
-- JEDEC (JESD79-2E) stage h
when s_5 =>
ac_state <= s_6;
stage_counter <= c_tmod_in_clks;
addr_cmd <= dll_reset(c_seq_addr_cmd_config, -- configuration
int_mr0(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
-- JEDEC (JESD79-2E) stage i
when s_6 =>
ac_state <= s_7;
stage_counter <= c_trp_in_clks;
addr_cmd <= precharge_all(c_seq_addr_cmd_config, -- configuration
2**MEM_IF_NUM_RANKS - 1); -- rank(s)
-- JEDEC (JESD79-2E) stage j
when s_7 =>
ac_state <= s_8;
stage_counter <= c_trfc_min_in_clks;
addr_cmd <= refresh(c_seq_addr_cmd_config, -- configuration
addr_cmd, -- previous value
2**current_cs); -- rank
-- JEDEC (JESD79-2E) stage j - second refresh
when s_8 =>
ac_state <= s_9;
stage_counter <= c_trfc_min_in_clks;
addr_cmd <= refresh(c_seq_addr_cmd_config, -- configuration
addr_cmd, -- previous value
2**current_cs); -- rank
-- JEDEC (JESD79-2E) stage k
when s_9 =>
ac_state <= s_10;
stage_counter <= c_tmrd_in_clks;
v_mr_overload := int_mr0(c_max_mode_reg_index downto 3) & "010"; -- override to burst length 4
v_mr_overload(8) := '0'; -- required in JESD79-2E
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
0, -- mode register number
v_mr_overload, -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
-- JEDEC (JESD79-2E) stage l - wait 200 cycles
when s_10 =>
ac_state <= s_11;
stage_counter <= 200;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
-- JEDEC (JESD79-2E) stage l - OCD default
when s_11 =>
ac_state <= s_12;
stage_counter <= c_tmrd_in_clks;
v_mr_overload := int_mr1(c_max_mode_reg_index downto 0);
v_mr_overload(9 downto 7) := "111"; -- OCD calibration default (i.e. OCD unused)
v_mr_overload(0) := '0'; -- override for DLL enable
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
1, -- mode register number
v_mr_overload , -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
-- JEDEC (JESD79-2E) stage l - OCD cal exit
when s_12 =>
ac_state <= s_13;
stage_counter <= c_tmod_in_clks;
v_mr_overload := int_mr1(c_max_mode_reg_index downto 0);
v_mr_overload(9 downto 7) := "000"; -- OCD calibration exit
v_mr_overload(0) := '0'; -- override for DLL enable
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
1, -- mode register number
v_mr_overload , -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
per_cs_init_seen(current_cs) <= '1';
-- JEDEC (JESD79-2E) stage m - cal finished
when s_13 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
null;
end case;
elsif MEM_IF_MEMTYPE = "DDR" then -- DDR style mode register setting following JEDEC (JESD79E)
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= 1;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
when s_1 =>
ac_state <= s_2;
stage_counter <= c_trp_in_clks;
addr_cmd <= precharge_all(c_seq_addr_cmd_config, -- configuration
2**current_cs); -- rank(s)
when s_2 =>
ac_state <= s_3;
stage_counter <= c_tmrd_in_clks;
v_mr_overload := int_mr1(c_max_mode_reg_index downto 0);
v_mr_overload(0) := '0'; -- override DLL enable
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
1, -- mode register number
v_mr_overload , -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_3 =>
ac_state <= s_4;
stage_counter <= c_tmod_in_clks;
addr_cmd <= dll_reset(c_seq_addr_cmd_config, -- configuration
int_mr0(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_4 =>
ac_state <= s_5;
stage_counter <= c_trp_in_clks;
addr_cmd <= precharge_all(c_seq_addr_cmd_config, -- configuration
2**MEM_IF_NUM_RANKS - 1); -- rank(s)
when s_5 =>
ac_state <= s_6;
stage_counter <= c_trfc_min_in_clks;
addr_cmd <= refresh(c_seq_addr_cmd_config, -- configuration
addr_cmd, -- previous value
2**current_cs); -- rank
when s_6 =>
ac_state <= s_7;
stage_counter <= c_trfc_min_in_clks;
addr_cmd <= refresh(c_seq_addr_cmd_config, -- configuration
addr_cmd, -- previous value
2**current_cs); -- rank
when s_7 =>
ac_state <= s_8;
stage_counter <= c_tmrd_in_clks;
v_mr_overload := int_mr0(c_max_mode_reg_index downto 3) & "010"; -- override to burst length 4
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
0, -- mode register number
v_mr_overload, -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_8 =>
ac_state <= s_9;
stage_counter <= 200;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
per_cs_init_seen(current_cs) <= '1';
when s_9 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
null;
end case;
elsif MEM_IF_MEMTYPE = "DDR3" then
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= c_trp_in_clks;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
when s_1 =>
ac_state <= s_2;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
2, -- mode register number
int_mr2(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_2 =>
ac_state <= s_3;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
3, -- mode register number
int_mr3(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_3 =>
ac_state <= s_4;
stage_counter <= c_tmrd_in_clks;
v_mr_overload := int_mr1(c_max_mode_reg_index downto 0);
v_mr_overload(0) := '0'; -- Override for DLL enable
v_mr_overload(12) := '0'; -- output buffer enable.
v_mr_overload(7) := '0'; -- Disable Write levelling
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
1, -- mode register number
v_mr_overload, -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_4 =>
ac_state <= s_5;
stage_counter <= c_tmod_in_clks;
v_mr_overload := int_mr0(c_max_mode_reg_index downto 0);
v_mr_overload(1 downto 0) := "01"; -- override to on the fly burst length choice
v_mr_overload(7) := '0'; -- test mode not enabled
v_mr_overload(8) := '1'; -- DLL reset
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
0, -- mode register number
v_mr_overload, -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_5 =>
ac_state <= s_6;
stage_counter <= c_zq_init_duration_clks;
addr_cmd <= ZQCL(c_seq_addr_cmd_config, -- configuration
2**current_cs); -- rank
per_cs_init_seen(current_cs) <= '1';
when s_6 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
else
report admin_report_prefix & "unsupported memory type specified" severity error;
end if;
-- end of s_program_cal_mrs case
when s_prog_user_mrs =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= 1;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
when s_1 =>
if MEM_IF_MEMTYPE = "DDR" then -- for DDR memory skip MR2/3 because not present
ac_state <= s_4;
else -- for DDR2/DDR3 all MRs programmed
ac_state <= s_2;
end if;
stage_counter <= c_trp_in_clks;
addr_cmd <= precharge_all(c_seq_addr_cmd_config, -- configuration
2**MEM_IF_NUM_RANKS - 1); -- rank(s)
when s_2 =>
ac_state <= s_3;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
2, -- mode register number
int_mr2(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_3 =>
ac_state <= s_4;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
3, -- mode register number
int_mr3(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
if to_integer(unsigned(int_mr3)) /= 0 then
report admin_report_prefix & " mode register 3 is expected to have a value of 0 but has a value of : " &
integer'image(to_integer(unsigned(int_mr3))) severity warning;
end if;
when s_4 =>
ac_state <= s_5;
stage_counter <= c_tmrd_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
1, -- mode register number
int_mr1(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
if (MEM_IF_DQSN_EN = 0) and (int_mr1(10) = '0') and (MEM_IF_MEMTYPE = "DDR2") then
report admin_report_prefix & "mode register and generic conflict:" & LF &
"* generic MEM_IF_DQSN_EN is set to 'disable' DQSN" & LF &
"* user mode register MEM_IF_MR1 bit 10 is set to 'enable' DQSN" severity warning;
end if;
when s_5 =>
ac_state <= s_6;
stage_counter <= c_tmod_in_clks;
addr_cmd <= load_mode(c_seq_addr_cmd_config, -- configuration
0, -- mode register number
int_mr0(c_max_mode_reg_index downto 0), -- mode register value
2**current_cs, -- rank
false); -- remap address and bank address
when s_6 =>
ac_state <= s_7;
stage_counter <= 1;
when s_7 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
-- end of s_prog_user_mr case
when s_access_precharge =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= 10;
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
when s_1 =>
ac_state <= s_2;
stage_counter <= c_trp_in_clks;
addr_cmd <= precharge_all(c_seq_addr_cmd_config, -- configuration
2**MEM_IF_NUM_RANKS - 1); -- rank(s)
when s_2 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
when s_topup_refresh | s_refresh =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= 1;
when s_1 =>
ac_state <= s_2;
stage_counter <= 1;
addr_cmd <= refresh(c_seq_addr_cmd_config, -- configuration
addr_cmd, -- previous value
2**MEM_IF_NUM_RANKS - 1); -- rank
when s_2 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
when s_topup_refresh_done | s_refresh_done =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= c_trfc_min_in_clks;
refresh_done <= '1'; -- ensure trfc not violated
when s_1 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
when s_zq_cal_short =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= 1;
when s_1 =>
ac_state <= s_2;
stage_counter <= c_tzqcs;
addr_cmd <= ZQCS(c_seq_addr_cmd_config, -- configuration
2**current_cs); -- all ranks
when s_2 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
when s_access_act =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= c_trrd_min_in_clks;
when s_1 =>
ac_state <= s_2;
stage_counter <= c_trcd_min_in_clks;
addr_cmd <= activate(c_seq_addr_cmd_config, -- configuration
addr_cmd, -- previous value
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_ROW, -- row address
2**current_cs); -- rank
when s_2 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
-- counter to delay transition from s_idle to s_refresh - this is to ensure a refresh command is not sent
-- just as we enter operational state (could cause a trfc violation)
when s_dummy_wait =>
case ac_state is
when s_0 =>
ac_state <= s_1;
stage_counter <= c_max_wait_value;
when s_1 =>
ac_state <= s_0;
stage_counter <= 1;
finished_state <= '1';
when others =>
ac_state <= s_0;
end case;
when s_reset =>
stage_counter <= 1;
-- default some s_non_operational signals
if GENERATE_ADDITIONAL_DBG_RTL = 1 then
nop_toggle_signal <= addr;
nop_toggle_pin <= 0;
nop_toggle_value <= '0';
end if;
when s_non_operational => -- if failed then output a recognised pattern to the memory (Only executes if GENERATE_ADDITIONAL_DBG_RTL set)
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
if NON_OP_EVAL_MD = "PIN_FINDER" then -- toggle pins in turn for 200 memory clk cycles
stage_counter <= 200/(DWIDTH_RATIO/2); -- 200 mem_clk cycles
case nop_toggle_signal is
when addr =>
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, addr, '0');
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, addr, nop_toggle_value, nop_toggle_pin);
nop_toggle_value <= not nop_toggle_value;
if nop_toggle_value = '1' then
if nop_toggle_pin = MEM_IF_ADDR_WIDTH-1 then
nop_toggle_signal <= ba;
nop_toggle_pin <= 0;
else
nop_toggle_pin <= nop_toggle_pin + 1;
end if;
end if;
when ba =>
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, ba, '0');
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, ba, nop_toggle_value, nop_toggle_pin);
nop_toggle_value <= not nop_toggle_value;
if nop_toggle_value = '1' then
if nop_toggle_pin = MEM_IF_BANKADDR_WIDTH-1 then
nop_toggle_signal <= cas_n;
nop_toggle_pin <= 0;
else
nop_toggle_pin <= nop_toggle_pin + 1;
end if;
end if;
when cas_n =>
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, cas_n, nop_toggle_value);
nop_toggle_value <= not nop_toggle_value;
if nop_toggle_value = '1' then
nop_toggle_signal <= ras_n;
end if;
when ras_n =>
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, ras_n, nop_toggle_value);
nop_toggle_value <= not nop_toggle_value;
if nop_toggle_value = '1' then
nop_toggle_signal <= we_n;
end if;
when we_n =>
addr_cmd <= mask (c_seq_addr_cmd_config, addr_cmd, we_n, nop_toggle_value);
nop_toggle_value <= not nop_toggle_value;
if nop_toggle_value = '1' then
nop_toggle_signal <= addr;
end if;
when others =>
report admin_report_prefix & " an attempt to toggle a non addr/cmd pin detected" severity failure;
end case;
elsif NON_OP_EVAL_MD = "SI_EVALUATOR" then -- toggle all addr/cmd pins at fmax
stage_counter <= 0; -- every mem_clk cycle
stage_counter_zero <= '1';
v_nop_ac_0 := mask (c_seq_addr_cmd_config, addr_cmd, addr, nop_toggle_value);
v_nop_ac_0 := mask (c_seq_addr_cmd_config, v_nop_ac_0, ba, nop_toggle_value);
v_nop_ac_0 := mask (c_seq_addr_cmd_config, v_nop_ac_0, we_n, nop_toggle_value);
v_nop_ac_0 := mask (c_seq_addr_cmd_config, v_nop_ac_0, ras_n, nop_toggle_value);
v_nop_ac_0 := mask (c_seq_addr_cmd_config, v_nop_ac_0, cas_n, nop_toggle_value);
v_nop_ac_1 := mask (c_seq_addr_cmd_config, addr_cmd, addr, not nop_toggle_value);
v_nop_ac_1 := mask (c_seq_addr_cmd_config, v_nop_ac_1, ba, not nop_toggle_value);
v_nop_ac_1 := mask (c_seq_addr_cmd_config, v_nop_ac_1, we_n, not nop_toggle_value);
v_nop_ac_1 := mask (c_seq_addr_cmd_config, v_nop_ac_1, ras_n, not nop_toggle_value);
v_nop_ac_1 := mask (c_seq_addr_cmd_config, v_nop_ac_1, cas_n, not nop_toggle_value);
for i in 0 to DWIDTH_RATIO/2 - 1 loop
if i mod 2 = 0 then
addr_cmd(i) <= v_nop_ac_0(i);
else
addr_cmd(i) <= v_nop_ac_1(i);
end if;
end loop;
if DWIDTH_RATIO = 2 then
nop_toggle_value <= not nop_toggle_value;
end if;
else
report admin_report_prefix & "unknown non-operational evaluation mode " & NON_OP_EVAL_MD severity failure;
end if;
when others =>
addr_cmd <= deselect(c_seq_addr_cmd_config, -- configuration
addr_cmd); -- previous value
stage_counter <= 1;
ac_state <= s_0;
end case;
end if;
end if;
end process;
-- -------------------------------------------------------------------
-- output packing of mode register settings and enabling of ODT
-- -------------------------------------------------------------------
process (int_mr0, int_mr1, int_mr2, int_mr3, mem_init_complete)
begin
admin_regs_status_rec.mr0 <= int_mr0;
admin_regs_status_rec.mr1 <= int_mr1;
admin_regs_status_rec.mr2 <= int_mr2;
admin_regs_status_rec.mr3 <= int_mr3;
admin_regs_status_rec.init_done <= mem_init_complete;
enable_odt <= int_mr1(2) or int_mr1(6); -- if ODT enabled in MR settings (i.e. MR1 bits 2 or 6 /= 0)
end process;
-- --------------------------------------------------------------------------------
-- generation of handshake signals with ctrl, dgrb and dgwb blocks (this includes
-- command ack, command done for ctrl and access grant for dgrb/dgwb)
-- --------------------------------------------------------------------------------
process (rst_n, clk)
begin
if rst_n = '0' then
admin_ctrl <= defaults;
ac_access_gnt <= '0';
elsif rising_edge(clk) then
admin_ctrl <= defaults;
ac_access_gnt <= '0';
admin_ctrl.command_ack <= command_started;
admin_ctrl.command_done <= command_done;
if state = s_access then
ac_access_gnt <= '1';
end if;
end if;
end process;
end architecture struct;
--
-- -----------------------------------------------------------------------------
-- Abstract : inferred ram for the non-levelling AFI PHY sequencer
-- The inferred ram is used in the iram block to store
-- debug information about the sequencer. It is variable in
-- size based on the IRAM_AWIDTH generic and is of size
-- 32 * (2 ** IRAM_ADDR_WIDTH) bits
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_iram_ram IS
generic (
IRAM_AWIDTH : natural
);
port (
clk : in std_logic;
rst_n : in std_logic;
-- ram ports
addr : in unsigned(IRAM_AWIDTH-1 downto 0);
wdata : in std_logic_vector(31 downto 0);
write : in std_logic;
rdata : out std_logic_vector(31 downto 0)
);
end entity;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_iram_ram is
-- infer ram
constant c_max_ram_address : natural := 2**IRAM_AWIDTH -1;
-- registered ram signals
signal addr_r : unsigned(IRAM_AWIDTH-1 downto 0);
signal wdata_r : std_logic_vector(31 downto 0);
signal write_r : std_logic;
signal rdata_r : std_logic_vector(31 downto 0);
-- ram storage array
type t_iram is array (0 to c_max_ram_address) of std_logic_vector(31 downto 0);
signal iram_ram : t_iram;
attribute altera_attribute : string;
attribute altera_attribute of iram_ram : signal is "-name ADD_PASS_THROUGH_LOGIC_TO_INFERRED_RAMS ""OFF""";
begin -- architecture struct
-- inferred ram instance - standard ram logic
process (clk, rst_n)
begin
if rst_n = '0' then
rdata_r <= (others => '0');
elsif rising_edge(clk) then
if write_r = '1' then
iram_ram(to_integer(addr_r)) <= wdata_r;
end if;
rdata_r <= iram_ram(to_integer(addr_r));
end if;
end process;
-- register i/o for speed
process (clk, rst_n)
begin
if rst_n = '0' then
rdata <= (others => '0');
write_r <= '0';
addr_r <= (others => '0');
wdata_r <= (others => '0');
elsif rising_edge(clk) then
rdata <= rdata_r;
write_r <= write;
addr_r <= addr;
wdata_r <= wdata;
end if;
end process;
end architecture struct;
--
-- -----------------------------------------------------------------------------
-- Abstract : iram block for the non-levelling AFI PHY sequencer
-- This block is an optional storage of debug information for
-- the sequencer. In the current form the iram stores header
-- information about the arrangement of the sequencer and pass/
-- fail information for per-delay/phase/pin sweeps for the
-- read resynch phase calibration stage. Support for debug of
-- additional commands can be added at a later date
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The altmemphy iram ram (alt_mem_phy_iram_ram) is an inferred ram memory to implement the debug
-- iram ram block
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_iram_ram;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_iram is
generic (
-- physical interface width definitions
MEM_IF_MEMTYPE : string;
FAMILYGROUP_ID : natural;
MEM_IF_DQS_WIDTH : natural;
MEM_IF_DQ_PER_DQS : natural;
MEM_IF_DWIDTH : natural;
MEM_IF_DM_WIDTH : natural;
MEM_IF_NUM_RANKS : natural;
IRAM_AWIDTH : natural;
REFRESH_COUNT_INIT : natural;
PRESET_RLAT : natural;
PLL_STEPS_PER_CYCLE : natural;
CAPABILITIES : natural;
IP_BUILDNUM : natural
);
port (
-- clk / reset
clk : in std_logic;
rst_n : in std_logic;
-- read interface from mmi block:
mmi_iram : in t_iram_ctrl;
mmi_iram_enable_writes : in std_logic;
--iram status signal (includes read data from iram)
iram_status : out t_iram_stat;
iram_push_done : out std_logic;
-- from ctrl block
ctrl_iram : in t_ctrl_command;
-- from dgrb block
dgrb_iram : in t_iram_push;
-- from admin block
admin_regs_status_rec : in t_admin_stat;
-- current write position in the iram
ctrl_idib_top : in natural range 0 to 2 ** IRAM_AWIDTH - 1;
ctrl_iram_push : in t_ctrl_iram;
-- the following signals are unused and reserved for future use
dgwb_iram : in t_iram_push
);
end entity;
library work;
-- The registers package (alt_mem_phy_regs_pkg) is used to combine the definition of the
-- registers for the mmi status registers and functions/procedures applied to the registers
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg.all;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_iram is
-- -------------------------------------------
-- IHI fields
-- -------------------------------------------
-- memory type , Quartus Build No., Quartus release, sequencer architecture version :
signal memtype : std_logic_vector(7 downto 0);
signal ihi_self_description : std_logic_vector(31 downto 0);
signal ihi_self_description_extra : std_logic_vector(31 downto 0);
-- for iram address generation:
signal curr_iram_offset : natural range 0 to 2 ** IRAM_AWIDTH - 1;
-- set read latency for iram_rdata_valid signal control:
constant c_iram_rlat : natural := 3; -- iram read latency (increment if read pipelining added
-- for rdata valid generation:
signal read_valid_ctr : natural range 0 to c_iram_rlat;
signal iram_addr_r : unsigned(IRAM_AWIDTH downto 0);
constant c_ihi_phys_if_desc : std_logic_vector(31 downto 0) := std_logic_vector (to_unsigned(MEM_IF_NUM_RANKS,8) & to_unsigned(MEM_IF_DM_WIDTH,8) & to_unsigned(MEM_IF_DQS_WIDTH,8) & to_unsigned(MEM_IF_DWIDTH,8));
constant c_ihi_timing_info : std_logic_vector(31 downto 0) := X"DEADDEAD";
constant c_ihi_ctrl_ss_word2 : std_logic_vector(31 downto 0) := std_logic_vector (to_unsigned(PRESET_RLAT,16) & X"0000");
-- IDIB header codes
constant c_idib_header_code0 : std_logic_vector(7 downto 0) := X"4A";
constant c_idib_footer_code : std_logic_vector(7 downto 0) := X"5A";
-- encoded Quartus version
-- constant c_quartus_version : natural := 0; -- Quartus 7.2
-- constant c_quartus_version : natural := 1; -- Quartus 8.0
--constant c_quartus_version : natural := 2; -- Quartus 8.1
--constant c_quartus_version : natural := 3; -- Quartus 9.0
--constant c_quartus_version : natural := 4; -- Quartus 9.0sp2
--constant c_quartus_version : natural := 5; -- Quartus 9.1
--constant c_quartus_version : natural := 6; -- Quartus 9.1sp1?
--constant c_quartus_version : natural := 7; -- Quartus 9.1sp2?
constant c_quartus_version : natural := 8; -- Quartus 10.0
-- constant c_quartus_version : natural := 114; -- reserved
-- allow for different variants for debug i/f
constant c_dbg_if_version : natural := 2;
-- sequencer type 1 for levelling, 2 for non-levelling
constant c_sequencer_type : natural := 2;
-- a prefix for all report signals to identify phy and sequencer block
--
constant iram_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (iram) : ";
-- -------------------------------------------
-- signal and type declarations
-- -------------------------------------------
type t_iram_state is ( s_reset, -- system reset
s_pre_init_ram, -- identify pre-initialisation
s_init_ram, -- zero all locations
s_idle, -- default state
s_word_access_ram, -- mmi access to the iram (post-calibration)
s_word_fetch_ram_rdata, -- sample read data from RAM
s_word_fetch_ram_rdata_r,-- register the sampling of data from RAM (to improve timing)
s_word_complete, -- finalise iram ram write
s_idib_header_write, -- when starting a command
s_idib_header_inc_addr, -- address increment
s_idib_footer_write, -- unique footer to indicate end of data
s_cal_data_read, -- read RAM location (read occurs continuously from idle state)
s_cal_data_read_r,
s_cal_data_modify, -- modify RAM location (read occurs continuously)
s_cal_data_write, -- write modified value back to RAM
s_ihi_header_word0_wr, -- from 0 to 6 writing iram header info
s_ihi_header_word1_wr,
s_ihi_header_word2_wr,
s_ihi_header_word3_wr,
s_ihi_header_word4_wr,
s_ihi_header_word5_wr,
s_ihi_header_word6_wr,
s_ihi_header_word7_wr-- end writing iram header info
);
signal state : t_iram_state;
signal contested_access : std_logic;
signal idib_header_count : std_logic_vector(7 downto 0);
-- register a new cmd request
signal new_cmd : std_logic;
signal cmd_processed : std_logic;
-- signals to control dgrb writes
signal iram_modified_data : std_logic_vector(31 downto 0); -- scratchpad memory for read-modify-write
-- -------------------------------------------
-- physical ram connections
-- -------------------------------------------
-- Note that the iram_addr here is created IRAM_AWIDTH downto 0, and not
-- IRAM_AWIDTH-1 downto 0. This means that the MSB is outside the addressable
-- area of the RAM. The purpose of this is that this shall be our memory
-- overflow bit. It shall be directly connected to the iram_out_of_memory flag
-- 32-bit interface port (read and write)
signal iram_addr : unsigned(IRAM_AWIDTH downto 0);
signal iram_wdata : std_logic_vector(31 downto 0);
signal iram_rdata : std_logic_vector(31 downto 0);
signal iram_write : std_logic;
-- signal generated external to the iram to say when read data is valid
signal iram_rdata_valid : std_logic;
-- The FSM owns local storage that is loaded with the wdata/addr from the
-- requesting sub-block, which is then fed to the iram's wdata/addr in turn
-- until all data has gone across
signal fsm_read : std_logic;
-- -------------------------------------------
-- multiplexed push data
-- -------------------------------------------
signal iram_done : std_logic; -- unused
signal iram_pushdata : std_logic_vector(31 downto 0);
signal pending_push : std_logic; -- push data to RAM
signal iram_wordnum : natural range 0 to 511;
signal iram_bitnum : natural range 0 to 31;
begin -- architecture struct
-- -------------------------------------------
-- iram ram instantiation
-- -------------------------------------------
-- Note that the IRAM_AWIDTH is the physical number of address bits that the RAM has.
-- However, for out of range access detection purposes, an additional bit is added to
-- the various address signals. The iRAM does not register any of its inputs as the addr,
-- wdata etc are registered directly before being driven to it.
-- The dgrb accesses are of format read-modify-write to a single bit of a 32-bit word, the
-- mmi reads and header writes are in 32-bit words
--
ram : entity ddr_ctrl_ip_phy_alt_mem_phy_iram_ram
generic map (
IRAM_AWIDTH => IRAM_AWIDTH
)
port map (
clk => clk,
rst_n => rst_n,
addr => iram_addr(IRAM_AWIDTH-1 downto 0),
wdata => iram_wdata,
write => iram_write,
rdata => iram_rdata
);
-- -------------------------------------------
-- IHI fields
-- asynchronously
-- -------------------------------------------
-- this field identifies the type of memory
memtype <= X"03" when (MEM_IF_MEMTYPE = "DDR3") else
X"02" when (MEM_IF_MEMTYPE = "DDR2") else
X"01" when (MEM_IF_MEMTYPE = "DDR") else
X"10" when (MEM_IF_MEMTYPE = "QDRII") else
X"00" ;
-- this field indentifies the gross level description of the sequencer
ihi_self_description <= memtype
& std_logic_vector(to_unsigned(IP_BUILDNUM,8))
& std_logic_vector(to_unsigned(c_quartus_version,8))
& std_logic_vector(to_unsigned(c_dbg_if_version,8));
-- some extra information for the debug gui - sequencer type and familygroup
ihi_self_description_extra <= std_logic_vector(to_unsigned(FAMILYGROUP_ID,4))
& std_logic_vector(to_unsigned(c_sequencer_type,4))
& x"000000";
-- -------------------------------------------
-- check for contested memory accesses
-- -------------------------------------------
process(clk,rst_n)
begin
if rst_n = '0' then
contested_access <= '0';
elsif rising_edge(clk) then
contested_access <= '0';
if mmi_iram.read = '1' and pending_push = '1' then
report iram_report_prefix & "contested memory accesses to the iram" severity failure;
contested_access <= '1';
end if;
-- sanity checks
if mmi_iram.write = '1' then
report iram_report_prefix & "mmi writes to the iram unsupported for non-levelling AFI PHY sequencer" severity failure;
end if;
if dgwb_iram.iram_write = '1' then
report iram_report_prefix & "dgwb writes to the iram unsupported for non-levelling AFI PHY sequencer" severity failure;
end if;
end if;
end process;
-- -------------------------------------------
-- mux push data and associated signals
-- note: single bit taken for iram_pushdata because 1-bit read-modify-write to
-- a 32-bit word in the ram. This interface style is maintained for future
-- scalability / wider application of the iram block.
-- -------------------------------------------
process(clk,rst_n)
begin
if rst_n = '0' then
iram_done <= '0';
iram_pushdata <= (others => '0');
pending_push <= '0';
iram_wordnum <= 0;
iram_bitnum <= 0;
elsif rising_edge(clk) then
case curr_active_block(ctrl_iram.command) is
when dgrb =>
iram_done <= dgrb_iram.iram_done;
iram_pushdata <= dgrb_iram.iram_pushdata;
pending_push <= dgrb_iram.iram_write;
iram_wordnum <= dgrb_iram.iram_wordnum;
iram_bitnum <= dgrb_iram.iram_bitnum;
when others => -- default dgrb
iram_done <= dgrb_iram.iram_done;
iram_pushdata <= dgrb_iram.iram_pushdata;
pending_push <= dgrb_iram.iram_write;
iram_wordnum <= dgrb_iram.iram_wordnum;
iram_bitnum <= dgrb_iram.iram_bitnum;
end case;
end if;
end process;
-- -------------------------------------------
-- generate write signal for the ram
-- -------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
iram_write <= '0';
elsif rising_edge(clk) then
case state is
when s_idle =>
iram_write <= '0';
when s_pre_init_ram |
s_init_ram =>
iram_write <= '1';
when s_ihi_header_word0_wr |
s_ihi_header_word1_wr |
s_ihi_header_word2_wr |
s_ihi_header_word3_wr |
s_ihi_header_word4_wr |
s_ihi_header_word5_wr |
s_ihi_header_word6_wr |
s_ihi_header_word7_wr =>
iram_write <= '1';
when s_idib_header_write =>
iram_write <= '1';
when s_idib_footer_write =>
iram_write <= '1';
when s_cal_data_write =>
iram_write <= '1';
when others =>
iram_write <= '0'; -- default
end case;
end if;
end process;
-- -------------------------------------------
-- generate wdata for the ram
-- -------------------------------------------
process(clk, rst_n)
variable v_current_cs : std_logic_vector(3 downto 0);
variable v_mtp_alignment : std_logic_vector(0 downto 0);
variable v_single_bit : std_logic;
begin
if rst_n = '0' then
iram_wdata <= (others => '0');
elsif rising_edge(clk) then
case state is
when s_pre_init_ram |
s_init_ram =>
iram_wdata <= (others => '0');
when s_ihi_header_word0_wr =>
iram_wdata <= ihi_self_description;
when s_ihi_header_word1_wr =>
iram_wdata <= c_ihi_phys_if_desc;
when s_ihi_header_word2_wr =>
iram_wdata <= c_ihi_timing_info;
when s_ihi_header_word3_wr =>
iram_wdata <= ( others => '0');
iram_wdata(admin_regs_status_rec.mr0'range) <= admin_regs_status_rec.mr0;
iram_wdata(admin_regs_status_rec.mr1'high + 16 downto 16) <= admin_regs_status_rec.mr1;
when s_ihi_header_word4_wr =>
iram_wdata <= ( others => '0');
iram_wdata(admin_regs_status_rec.mr2'range) <= admin_regs_status_rec.mr2;
iram_wdata(admin_regs_status_rec.mr3'high + 16 downto 16) <= admin_regs_status_rec.mr3;
when s_ihi_header_word5_wr =>
iram_wdata <= c_ihi_ctrl_ss_word2;
when s_ihi_header_word6_wr =>
iram_wdata <= std_logic_vector(to_unsigned(IRAM_AWIDTH,32)); -- tbd write the occupancy at end of cal
when s_ihi_header_word7_wr =>
iram_wdata <= ihi_self_description_extra;
when s_idib_header_write =>
-- encode command_op for current operation
v_current_cs := std_logic_vector(to_unsigned(ctrl_iram.command_op.current_cs, 4));
v_mtp_alignment := std_logic_vector(to_unsigned(ctrl_iram.command_op.mtp_almt, 1));
v_single_bit := ctrl_iram.command_op.single_bit;
iram_wdata <= encode_current_stage(ctrl_iram.command) & -- which command being executed (currently this should only be cmd_rrp_sweep (8 bits)
v_current_cs & -- which chip select being processed (4 bits)
v_mtp_alignment & -- currently used MTP alignment (1 bit)
v_single_bit & -- is single bit calibration selected (1 bit) - used during MTP alignment
"00" & -- RFU
idib_header_count & -- unique ID to how many headers have been written (8 bits)
c_idib_header_code0; -- unique ID for headers (8 bits)
when s_idib_footer_write =>
iram_wdata <= c_idib_footer_code & c_idib_footer_code & c_idib_footer_code & c_idib_footer_code;
when s_cal_data_modify =>
-- default don't overwrite
iram_modified_data <= iram_rdata;
-- update iram data based on packing and write modes
if ctrl_iram_push.packing_mode = dq_bitwise then
case ctrl_iram_push.write_mode is
when overwrite_ram =>
iram_modified_data(iram_bitnum) <= iram_pushdata(0);
when or_into_ram =>
iram_modified_data(iram_bitnum) <= iram_pushdata(0) or iram_rdata(0);
when and_into_ram =>
iram_modified_data(iram_bitnum) <= iram_pushdata(0) and iram_rdata(0);
when others =>
report iram_report_prefix & "unidentified write mode of " & t_iram_write_mode'image(ctrl_iram_push.write_mode) &
" specified when generating iram write data" severity failure;
end case;
elsif ctrl_iram_push.packing_mode = dq_wordwise then
case ctrl_iram_push.write_mode is
when overwrite_ram =>
iram_modified_data <= iram_pushdata;
when or_into_ram =>
iram_modified_data <= iram_pushdata or iram_rdata;
when and_into_ram =>
iram_modified_data <= iram_pushdata and iram_rdata;
when others =>
report iram_report_prefix & "unidentified write mode of " & t_iram_write_mode'image(ctrl_iram_push.write_mode) &
" specified when generating iram write data" severity failure;
end case;
else
report iram_report_prefix & "unidentified packing mode of " & t_iram_packing_mode'image(ctrl_iram_push.packing_mode) &
" specified when generating iram write data" severity failure;
end if;
when s_cal_data_write =>
iram_wdata <= iram_modified_data;
when others =>
iram_wdata <= (others => '0');
end case;
end if;
end process;
-- -------------------------------------------
-- generate addr for the ram
-- -------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
iram_addr <= (others => '0');
curr_iram_offset <= 0;
elsif rising_edge(clk) then
case (state) is
when s_idle =>
if mmi_iram.read = '1' then -- pre-set mmi read location address
iram_addr <= ('0' & to_unsigned(mmi_iram.addr,IRAM_AWIDTH)); -- Pad MSB
else -- default get next push data location from iram
iram_addr <= to_unsigned(curr_iram_offset + iram_wordnum, IRAM_AWIDTH+1);
end if;
when s_word_access_ram =>
-- calculate the address
if mmi_iram.read = '1' then -- mmi access
iram_addr <= ('0' & to_unsigned(mmi_iram.addr,IRAM_AWIDTH)); -- Pad MSB
end if;
when s_ihi_header_word0_wr =>
iram_addr <= (others => '0');
-- increment address for IHI word writes :
when s_ihi_header_word1_wr |
s_ihi_header_word2_wr |
s_ihi_header_word3_wr |
s_ihi_header_word4_wr |
s_ihi_header_word5_wr |
s_ihi_header_word6_wr |
s_ihi_header_word7_wr =>
iram_addr <= iram_addr + 1;
when s_idib_header_write =>
iram_addr <= '0' & to_unsigned(ctrl_idib_top, IRAM_AWIDTH); -- Always write header at idib_top location
when s_idib_footer_write =>
iram_addr <= to_unsigned(curr_iram_offset + iram_wordnum, IRAM_AWIDTH+1); -- active block communicates where to put the footer with done signal
when s_idib_header_inc_addr =>
iram_addr <= iram_addr + 1;
curr_iram_offset <= to_integer('0' & iram_addr) + 1;
when s_init_ram =>
if iram_addr(IRAM_AWIDTH) = '1' then
iram_addr <= (others => '0'); -- this prevents erroneous out-of-mem flag after initialisation
else
iram_addr <= iram_addr + 1;
end if;
when others =>
iram_addr <= iram_addr;
end case;
end if;
end process;
-- -------------------------------------------
-- generate new cmd signal to register the command_req signal
-- -------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
new_cmd <= '0';
elsif rising_edge(clk) then
if ctrl_iram.command_req = '1' then
case ctrl_iram.command is
when cmd_rrp_sweep | -- only prompt new_cmd for commands we wish to write headers for
cmd_rrp_seek |
cmd_read_mtp |
cmd_write_ihi =>
new_cmd <= '1';
when others =>
new_cmd <= '0';
end case;
end if;
if cmd_processed = '1' then
new_cmd <= '0';
end if;
end if;
end process;
-- -------------------------------------------
-- generate read valid signal which takes account of pipelining of reads
-- -------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
iram_rdata_valid <= '0';
read_valid_ctr <= 0;
iram_addr_r <= (others => '0');
elsif rising_edge(clk) then
if read_valid_ctr < c_iram_rlat then
iram_rdata_valid <= '0';
read_valid_ctr <= read_valid_ctr + 1;
else
iram_rdata_valid <= '1';
end if;
if to_integer(iram_addr) /= to_integer(iram_addr_r) or
iram_write = '1' then
read_valid_ctr <= 0;
iram_rdata_valid <= '0';
end if;
-- register iram address
iram_addr_r <= iram_addr;
end if;
end process;
-- -------------------------------------------
-- state machine
-- -------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
state <= s_reset;
cmd_processed <= '0';
elsif rising_edge(clk) then
cmd_processed <= '0';
case state is
when s_reset =>
state <= s_pre_init_ram;
when s_pre_init_ram =>
state <= s_init_ram;
-- remain in the init_ram state until all the ram locations have been zero'ed
when s_init_ram =>
if iram_addr(IRAM_AWIDTH) = '1' then
state <= s_idle;
end if;
-- default state after reset
when s_idle =>
if pending_push = '1' then
state <= s_cal_data_read;
elsif iram_done = '1' then
state <= s_idib_footer_write;
elsif new_cmd = '1' then
case ctrl_iram.command is
when cmd_rrp_sweep |
cmd_rrp_seek |
cmd_read_mtp => state <= s_idib_header_write;
when cmd_write_ihi => state <= s_ihi_header_word0_wr;
when others => state <= state;
end case;
cmd_processed <= '1';
elsif mmi_iram.read = '1' then
state <= s_word_access_ram;
end if;
-- mmi read accesses
when s_word_access_ram => state <= s_word_fetch_ram_rdata;
when s_word_fetch_ram_rdata => state <= s_word_fetch_ram_rdata_r;
when s_word_fetch_ram_rdata_r => if iram_rdata_valid = '1' then
state <= s_word_complete;
end if;
when s_word_complete => if iram_rdata_valid = '1' then -- return to idle when iram_rdata stable
state <= s_idle;
end if;
-- header write (currently only for cmp_rrp stage)
when s_idib_header_write => state <= s_idib_header_inc_addr;
when s_idib_header_inc_addr => state <= s_idle; -- return to idle to wait for push
when s_idib_footer_write => state <= s_word_complete;
-- push data accesses (only used by the dgrb block at present)
when s_cal_data_read => state <= s_cal_data_read_r;
when s_cal_data_read_r => if iram_rdata_valid = '1' then
state <= s_cal_data_modify;
end if;
when s_cal_data_modify => state <= s_cal_data_write;
when s_cal_data_write => state <= s_word_complete;
-- IHI Header write accesses
when s_ihi_header_word0_wr => state <= s_ihi_header_word1_wr;
when s_ihi_header_word1_wr => state <= s_ihi_header_word2_wr;
when s_ihi_header_word2_wr => state <= s_ihi_header_word3_wr;
when s_ihi_header_word3_wr => state <= s_ihi_header_word4_wr;
when s_ihi_header_word4_wr => state <= s_ihi_header_word5_wr;
when s_ihi_header_word5_wr => state <= s_ihi_header_word6_wr;
when s_ihi_header_word6_wr => state <= s_ihi_header_word7_wr;
when s_ihi_header_word7_wr => state <= s_idle;
when others => state <= state;
end case;
end if;
end process;
-- -------------------------------------------
-- drive read data and responses back.
-- -------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
iram_status <= defaults;
iram_push_done <= '0';
idib_header_count <= (others => '0');
fsm_read <= '0';
elsif rising_edge(clk) then
-- defaults
iram_status <= defaults;
iram_status.done <= '0';
iram_status.rdata <= (others => '0');
iram_push_done <= '0';
if state = s_init_ram then
iram_status.out_of_mem <= '0';
else
iram_status.out_of_mem <= iram_addr(IRAM_AWIDTH);
end if;
-- register read flag for 32 bit accesses
if state = s_idle then
fsm_read <= mmi_iram.read;
end if;
if state = s_word_complete then
iram_status.done <= '1';
if fsm_read = '1' then
iram_status.rdata <= iram_rdata;
else
iram_status.rdata <= (others => '0');
end if;
end if;
-- if another access is ever presented while the FSM is busy, set the contested flag
if contested_access = '1' then
iram_status.contested_access <= '1';
end if;
-- set (and keep set) the iram_init_done output once initialisation of the RAM is complete
if (state /= s_init_ram) and (state /= s_pre_init_ram) and (state /= s_reset) then
iram_status.init_done <= '1';
end if;
if state = s_ihi_header_word7_wr then
iram_push_done <= '1';
end if;
-- if completing push or footer write then acknowledge
if state = s_cal_data_modify or state = s_idib_footer_write then
iram_push_done <= '1';
end if;
-- increment IDIB header count each time a header is written
if state = s_idib_header_write then
idib_header_count <= std_logic_vector(unsigned(idib_header_count) + to_unsigned(1,idib_header_count'high +1));
end if;
end if;
end process;
end architecture struct;
--
-- -----------------------------------------------------------------------------
-- Abstract : data gatherer (read bias) [dgrb] block for the non-levelling
-- AFI PHY sequencer
-- This block handles all calibration commands which require
-- memory read operations.
--
-- These include:
-- Resync phase calibration - sweep of phases, calculation of
-- result and optional storage to iram
-- Postamble calibration - clock cycle calibration of the postamble
-- enable signal
-- Read data valid signal alignment
-- Calculation of advertised read and write latencies
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The address and command package (alt_mem_phy_addr_cmd_pkg) is used to combine DRAM address
-- and command signals in one record and unify the functions operating on this record.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg.all;
-- The iram address package (alt_mem_phy_iram_addr_pkg) is used to define the base addresses used
-- for iram writes during calibration
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg.all;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_dgrb is
generic (
MEM_IF_DQS_WIDTH : natural;
MEM_IF_DQ_PER_DQS : natural;
MEM_IF_DWIDTH : natural;
MEM_IF_DM_WIDTH : natural;
MEM_IF_DQS_CAPTURE : natural;
MEM_IF_ADDR_WIDTH : natural;
MEM_IF_BANKADDR_WIDTH : natural;
MEM_IF_NUM_RANKS : natural;
MEM_IF_MEMTYPE : string;
ADV_LAT_WIDTH : natural;
CLOCK_INDEX_WIDTH : natural;
DWIDTH_RATIO : natural;
PRESET_RLAT : natural;
PLL_STEPS_PER_CYCLE : natural; -- number of PLL phase steps per PHY clock cycle
SIM_TIME_REDUCTIONS : natural;
GENERATE_ADDITIONAL_DBG_RTL : natural;
PRESET_CODVW_PHASE : natural;
PRESET_CODVW_SIZE : natural;
-- base column address to which calibration data is written
-- memory at MEM_IF_CAL_BASE_COL - MEM_IF_CAL_BASE_COL + C_CAL_DATA_LEN - 1
-- is assumed to contain the proper data
MEM_IF_CAL_BANK : natural; -- bank to which calibration data is written
MEM_IF_CAL_BASE_COL : natural;
EN_OCT : natural
);
port (
-- clk / reset
clk : in std_logic;
rst_n : in std_logic;
-- control interface
dgrb_ctrl : out t_ctrl_stat;
ctrl_dgrb : in t_ctrl_command;
parameterisation_rec : in t_algm_paramaterisation;
-- PLL reconfig interface
phs_shft_busy : in std_logic;
seq_pll_inc_dec_n : out std_logic;
seq_pll_select : out std_logic_vector(CLOCK_INDEX_WIDTH - 1 DOWNTO 0);
seq_pll_start_reconfig : out std_logic;
pll_resync_clk_index : in std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0); -- PLL phase used to select resync clock
pll_measure_clk_index : in std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0); -- PLL phase used to select mimic / aka measure clock
-- iram 'push' interface
dgrb_iram : out t_iram_push;
iram_push_done : in std_logic;
-- addr/cmd output for write commands
dgrb_ac : out t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
-- admin block req/gnt interface
dgrb_ac_access_req : out std_logic;
dgrb_ac_access_gnt : in std_logic;
-- RDV latency controls
seq_rdata_valid_lat_inc : out std_logic;
seq_rdata_valid_lat_dec : out std_logic;
-- POA latency controls
seq_poa_lat_dec_1x : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_poa_lat_inc_1x : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
-- read datapath interface
rdata_valid : in std_logic_vector(DWIDTH_RATIO/2 - 1 downto 0);
rdata : in std_logic_vector(DWIDTH_RATIO * MEM_IF_DWIDTH - 1 downto 0);
doing_rd : out std_logic_vector(MEM_IF_DQS_WIDTH * DWIDTH_RATIO/2 - 1 downto 0);
rd_lat : out std_logic_vector(ADV_LAT_WIDTH - 1 downto 0);
-- advertised write latency
wd_lat : out std_logic_vector(ADV_LAT_WIDTH - 1 downto 0);
-- OCT control
seq_oct_value : out std_logic;
dgrb_wdp_ovride : out std_logic;
-- mimic path interface
seq_mmc_start : out std_logic;
mmc_seq_done : in std_logic;
mmc_seq_value : in std_logic;
-- calibration byte lane select (reserved for future use - RFU)
ctl_cal_byte_lanes : in std_logic_vector(MEM_IF_NUM_RANKS * MEM_IF_DQS_WIDTH - 1 downto 0);
-- odt settings per chip select
odt_settings : in t_odt_array(0 to MEM_IF_NUM_RANKS-1);
-- signal to identify if a/c nt setting is correct (set after wr_lat calculation)
-- NOTE: labelled nt for future scalability to quarter rate interfaces
dgrb_ctrl_ac_nt_good : out std_logic;
-- status signals on calibrated cdvw
dgrb_mmi : out t_dgrb_mmi
);
end entity;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_dgrb is
-- ------------------------------------------------------------------
-- constant declarations
-- ------------------------------------------------------------------
constant c_seq_addr_cmd_config : t_addr_cmd_config_rec := set_config_rec(MEM_IF_ADDR_WIDTH, MEM_IF_BANKADDR_WIDTH, MEM_IF_NUM_RANKS, DWIDTH_RATIO, MEM_IF_MEMTYPE);
-- command/result length
constant c_command_result_len : natural := 8;
-- burst characteristics and latency characteristics
constant c_max_read_lat : natural := 2**rd_lat'length - 1; -- maximum read latency in phy clock-cycles
-- training pattern characteristics
constant c_cal_mtp_len : natural := 16;
constant c_cal_mtp : std_logic_vector(c_cal_mtp_len - 1 downto 0) := x"30F5";
constant c_cal_mtp_t : natural := c_cal_mtp_len / DWIDTH_RATIO; -- number of phy-clk cycles required to read BTP
-- read/write latency defaults
constant c_default_rd_lat_slv : std_logic_vector(ADV_LAT_WIDTH - 1 downto 0) := std_logic_vector(to_unsigned(c_default_rd_lat, ADV_LAT_WIDTH));
constant c_default_wd_lat_slv : std_logic_vector(ADV_LAT_WIDTH - 1 downto 0) := std_logic_vector(to_unsigned(c_default_wr_lat, ADV_LAT_WIDTH));
-- tracking reporting parameters
constant c_max_rsc_drift_in_phases : natural := 127; -- this must be a value of < 2^10 - 1 because of the range of signal codvw_trk_shift
-- Returns '1' when boolean b is True; '0' otherwise.
function active_high(b : in boolean) return std_logic is
variable r : std_logic;
begin
if b then
r := '1';
else
r := '0';
end if;
return r;
end function;
-- a prefix for all report signals to identify phy and sequencer block
--
constant dgrb_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (dgrb) : ";
-- Return the number of clock periods the resync clock should sweep.
--
-- On half-rate systems and in DQS-capture based systems a 720
-- to guarantee the resync window can be properly observed.
function rsc_sweep_clk_periods return natural is
variable v_num_periods : natural;
begin
if DWIDTH_RATIO = 2 then
if MEM_IF_DQS_CAPTURE = 1 then -- families which use DQS capture require a 720 degree sweep for FR to show a window
v_num_periods := 2;
else
v_num_periods := 1;
end if;
elsif DWIDTH_RATIO = 4 then
v_num_periods := 2;
else
report dgrb_report_prefix & "unsupported DWIDTH_RATIO." severity failure;
end if;
return v_num_periods;
end function;
-- window for PLL sweep
constant c_max_phase_shifts : natural := rsc_sweep_clk_periods*PLL_STEPS_PER_CYCLE;
constant c_pll_phs_inc : std_logic := '1';
constant c_pll_phs_dec : std_logic := not c_pll_phs_inc;
-- ------------------------------------------------------------------
-- type declarations
-- ------------------------------------------------------------------
-- dgrb main state machine
type t_dgrb_state is (
-- idle state
s_idle,
-- request access to memory address/command bus from the admin block
s_wait_admin,
-- relinquish address/command bus access
s_release_admin,
-- wind back resync phase to a 'zero' point
s_reset_cdvw,
-- perform resync phase sweep (used for MTP alignment checking and actual RRP sweep)
s_test_phases,
-- processing to when checking MTP alignment
s_read_mtp,
-- processing for RRP (read resync phase) sweep
s_seek_cdvw,
-- clock cycle alignment of read data valid signal
s_rdata_valid_align,
-- calculate advertised read latency
s_adv_rd_lat_setup,
s_adv_rd_lat,
-- calculate advertised write latency
s_adv_wd_lat,
-- postamble clock cycle calibration
s_poa_cal,
-- tracking - setup and periodic update
s_track
);
-- dgrb slave state machine for addr/cmd signals
type t_ac_state is (
-- idle state
s_ac_idle,
-- wait X cycles (issuing NOP command) to flush address/command and DQ buses
s_ac_relax,
-- read MTP pattern
s_ac_read_mtp,
-- read pattern for read data valid alignment
s_ac_read_rdv,
-- read pattern for POA calibration
s_ac_read_poa_mtp,
-- read pattern to calculate advertised write latency
s_ac_read_wd_lat
);
-- dgrb slave state machine for read resync phase calibration
type t_resync_state is (
-- idle state
s_rsc_idle,
-- shift resync phase by one
s_rsc_next_phase,
-- start test sequence for current pin and current phase
s_rsc_test_phase,
-- flush the read datapath
s_rsc_wait_for_idle_dimm, -- wait until no longer driving
s_rsc_flush_datapath, -- flush a/c path
-- sample DQ data to test phase
s_rsc_test_dq,
-- reset rsc phase to a zero position
s_rsc_reset_cdvw,
s_rsc_rewind_phase,
-- calculate the centre of resync window
s_rsc_cdvw_calc,
s_rsc_cdvw_wait, -- wait for calc result
-- set rsc clock phase to centre of data valid window
s_rsc_seek_cdvw,
-- wait until all results written to iram
s_rsc_wait_iram -- only entered if GENERATE_ADDITIONAL_DBG_RTL = 1
);
-- record definitions for window processing
type t_win_processing_status is ( calculating,
valid_result,
no_invalid_phases,
multiple_equal_windows,
no_valid_phases
);
type t_window_processing is record
working_window : std_logic_vector( c_max_phase_shifts - 1 downto 0);
first_good_edge : natural range 0 to c_max_phase_shifts - 1; -- pointer to first detected good edge
current_window_start : natural range 0 to c_max_phase_shifts - 1;
current_window_size : natural range 0 to c_max_phase_shifts - 1;
current_window_centre : natural range 0 to c_max_phase_shifts - 1;
largest_window_start : natural range 0 to c_max_phase_shifts - 1;
largest_window_size : natural range 0 to c_max_phase_shifts - 1;
largest_window_centre : natural range 0 to c_max_phase_shifts - 1;
current_bit : natural range 0 to c_max_phase_shifts - 1;
window_centre_update : std_logic;
last_bit_value : std_logic;
valid_phase_seen : boolean;
invalid_phase_seen : boolean;
first_cycle : boolean;
multiple_eq_windows : boolean;
found_a_good_edge : boolean;
status : t_win_processing_status;
windows_seen : natural range 0 to c_max_phase_shifts/2 - 1;
end record;
-- ------------------------------------------------------------------
-- function and procedure definitions
-- ------------------------------------------------------------------
-- Returns a string representation of a std_logic_vector.
-- Not synthesizable.
function str(v: std_logic_vector) return string is
variable str_value : string (1 to v'length);
variable str_len : integer;
variable c : character;
begin
str_len := 1;
for i in v'range loop
case v(i) is
when '0' => c := '0';
when '1' => c := '1';
when others => c := '?';
end case;
str_value(str_len) := c;
str_len := str_len + 1;
end loop;
return str_value;
end str;
-- functions and procedures for window processing
function defaults return t_window_processing is
variable output : t_window_processing;
begin
output.working_window := (others => '1');
output.last_bit_value := '1';
output.first_good_edge := 0;
output.current_window_start := 0;
output.current_window_size := 0;
output.current_window_centre := 0;
output.largest_window_start := 0;
output.largest_window_size := 0;
output.largest_window_centre := 0;
output.window_centre_update := '1';
output.current_bit := 0;
output.multiple_eq_windows := false;
output.valid_phase_seen := false;
output.invalid_phase_seen := false;
output.found_a_good_edge := false;
output.status := no_valid_phases;
output.first_cycle := false;
output.windows_seen := 0;
return output;
end function defaults;
procedure initialise_window_for_proc ( working : inout t_window_processing ) is
variable v_working_window : std_logic_vector( c_max_phase_shifts - 1 downto 0);
begin
v_working_window := working.working_window;
working := defaults;
working.working_window := v_working_window;
working.status := calculating;
working.first_cycle := true;
working.window_centre_update := '1';
working.windows_seen := 0;
end procedure initialise_window_for_proc;
procedure shift_window (working : inout t_window_processing;
num_phases : in natural range 1 to c_max_phase_shifts
)
is
begin
if working.working_window(0) = '0' then
working.invalid_phase_seen := true;
else
working.valid_phase_seen := true;
end if;
-- general bit serial shifting of window and incrementing of current bit counter.
if working.current_bit < num_phases - 1 then
working.current_bit := working.current_bit + 1;
else
working.current_bit := 0;
end if;
working.last_bit_value := working.working_window(0);
working.working_window := working.working_window(0) & working.working_window(working.working_window'high downto 1);
--synopsis translate_off
-- for simulation to make it simpler to see IF we are not using all the bits in the window
working.working_window(working.working_window'high) := 'H'; -- for visual debug
--synopsis translate_on
working.working_window(num_phases -1) := working.last_bit_value;
working.first_cycle := false;
end procedure shift_window;
procedure find_centre_of_largest_data_valid_window
( working : inout t_window_processing;
num_phases : in natural range 1 to c_max_phase_shifts
) is
begin
if working.first_cycle = false then -- not first call to procedure, then handle end conditions
if working.current_bit = 0 and working.found_a_good_edge = false then -- have been all way arround window (circular)
if working.valid_phase_seen = false then
working.status := no_valid_phases;
elsif working.invalid_phase_seen = false then
working.status := no_invalid_phases;
end if;
elsif working.current_bit = working.first_good_edge then -- if have found a good edge then complete a circular sweep to that edge
if working.multiple_eq_windows = true then
working.status := multiple_equal_windows;
else
working.status := valid_result;
end if;
end if;
end if;
-- start of a window condition
if working.last_bit_value = '0' and working.working_window(0) = '1' then
working.current_window_start := working.current_bit;
working.current_window_size := working.current_window_size + 1; -- equivalent to assigning to one because if not in a window then it is set to 0
working.window_centre_update := not working.window_centre_update;
working.current_window_centre := working.current_bit;
if working.found_a_good_edge /= true then -- if have not yet found a good edge then store this value
working.first_good_edge := working.current_bit;
working.found_a_good_edge := true;
end if;
-- end of window conditions
elsif working.last_bit_value = '1' and working.working_window(0) = '0' then
if working.current_window_size > working.largest_window_size then
working.largest_window_size := working.current_window_size;
working.largest_window_start := working.current_window_start;
working.largest_window_centre := working.current_window_centre;
working.multiple_eq_windows := false;
elsif working.current_window_size = working.largest_window_size then
working.multiple_eq_windows := true;
end if;
-- put counter in here because start of window 1 is observed twice
if working.found_a_good_edge = true then
working.windows_seen := working.windows_seen + 1;
end if;
working.current_window_size := 0;
elsif working.last_bit_value = '1' and working.working_window(0) = '1' and (working.found_a_good_edge = true) then --note operand in brackets is excessive but for may provide power savings and makes visual inspection of simulatuion easier
if working.window_centre_update = '1' then
if working.current_window_centre < num_phases -1 then
working.current_window_centre := working.current_window_centre + 1;
else
working.current_window_centre := 0;
end if;
end if;
working.window_centre_update := not working.window_centre_update;
working.current_window_size := working.current_window_size + 1;
end if;
shift_window(working,num_phases);
end procedure find_centre_of_largest_data_valid_window;
procedure find_last_failing_phase
( working : inout t_window_processing;
num_phases : in natural range 1 to c_max_phase_shifts + 1
) is
begin
if working.first_cycle = false then -- not first call to procedure
if working.current_bit = 0 then -- and working.found_a_good_edge = false then
if working.valid_phase_seen = false then
working.status := no_valid_phases;
elsif working.invalid_phase_seen = false then
working.status := no_invalid_phases;
else
working.status := valid_result;
end if;
end if;
end if;
if working.working_window(1) = '1' and working.working_window(0) = '0' and working.status = calculating then
working.current_window_start := working.current_bit;
end if;
shift_window(working, num_phases); -- shifts window and sets first_cycle = false
end procedure find_last_failing_phase;
procedure find_first_passing_phase
( working : inout t_window_processing;
num_phases : in natural range 1 to c_max_phase_shifts
) is
begin
if working.first_cycle = false then -- not first call to procedure
if working.current_bit = 0 then -- and working.found_a_good_edge = false then
if working.valid_phase_seen = false then
working.status := no_valid_phases;
elsif working.invalid_phase_seen = false then
working.status := no_invalid_phases;
else
working.status := valid_result;
end if;
end if;
end if;
if working.working_window(0) = '1' and working.last_bit_value = '0' and working.status = calculating then
working.current_window_start := working.current_bit;
end if;
shift_window(working, num_phases); -- shifts window and sets first_cycle = false
end procedure find_first_passing_phase;
-- shift in current pass/fail result to the working window
procedure shift_in(
working : inout t_window_processing;
status : in std_logic;
num_phases : in natural range 1 to c_max_phase_shifts
) is
begin
working.last_bit_value := working.working_window(0);
working.working_window(num_phases-1 downto 0) := (working.working_window(0) and status) & working.working_window(num_phases-1 downto 1);
end procedure;
-- The following function sets the width over which
-- write latency should be repeated on the dq bus
-- the default value is MEM_IF_DQ_PER_DQS
function set_wlat_dq_rep_width return natural is
begin
for i in 1 to MEM_IF_DWIDTH/MEM_IF_DQ_PER_DQS loop
if (i*MEM_IF_DQ_PER_DQS) >= ADV_LAT_WIDTH then
return i*MEM_IF_DQ_PER_DQS;
end if;
end loop;
report dgrb_report_prefix & "the specified maximum write latency cannot be fully represented in the given number of DQ pins" & LF &
"** NOTE: This may cause overflow when setting ctl_wlat signal" severity warning;
return MEM_IF_DQ_PER_DQS;
end function;
-- extract PHY 'addr/cmd' to 'wdata_valid' write latency from current read data
function wd_lat_from_rdata(signal rdata : in std_logic_vector(DWIDTH_RATIO * MEM_IF_DWIDTH - 1 downto 0))
return std_logic_vector is
variable v_wd_lat : std_logic_vector(ADV_LAT_WIDTH - 1 downto 0);
begin
v_wd_lat := (others => '0');
if set_wlat_dq_rep_width >= ADV_LAT_WIDTH then
v_wd_lat := rdata(v_wd_lat'high downto 0);
else
v_wd_lat := (others => '0');
v_wd_lat(set_wlat_dq_rep_width - 1 downto 0) := rdata(set_wlat_dq_rep_width - 1 downto 0);
end if;
return v_wd_lat;
end function;
-- check if rdata_valid is correctly aligned
function rdata_valid_aligned(
signal rdata : in std_logic_vector(DWIDTH_RATIO * MEM_IF_DWIDTH - 1 downto 0);
signal rdata_valid : in std_logic_vector(DWIDTH_RATIO/2 - 1 downto 0)
) return std_logic is
variable v_dq_rdata : std_logic_vector(DWIDTH_RATIO - 1 downto 0);
variable v_aligned : std_logic;
begin
-- Look at data from a single DQ pin 0 (DWIDTH_RATIO data bits)
for i in 0 to DWIDTH_RATIO - 1 loop
v_dq_rdata(i) := rdata(i*MEM_IF_DWIDTH);
end loop;
-- Check each alignment (necessary because in the HR case rdata can be in any alignment)
v_aligned := '0';
for i in 0 to DWIDTH_RATIO/2 - 1 loop
if rdata_valid(i) = '1' then
if v_dq_rdata(2*i + 1 downto 2*i) = "00" then
v_aligned := '1';
end if;
end if;
end loop;
return v_aligned;
end function;
-- set severity level for calibration failures
function set_cal_fail_sev_level (
generate_additional_debug_rtl : natural
) return severity_level is
begin
if generate_additional_debug_rtl = 1 then
return warning;
else
return failure;
end if;
end function;
constant cal_fail_sev_level : severity_level := set_cal_fail_sev_level(GENERATE_ADDITIONAL_DBG_RTL);
-- ------------------------------------------------------------------
-- signal declarations
-- rsc = resync - the mechanism of capturing DQ pin data onto a local clock domain
-- trk = tracking - a mechanism to track rsc clock phase with PVT variations
-- poa = postamble - protection circuitry from postamble glitched on DQS
-- ac = memory address / command signals
-- ------------------------------------------------------------------
-- main state machine
signal sig_dgrb_state : t_dgrb_state;
signal sig_dgrb_last_state : t_dgrb_state;
signal sig_rsc_req : t_resync_state; -- tells resync block which state to transition to.
-- centre of data-valid window process
signal sig_cdvw_state : t_window_processing;
-- control signals for the address/command process
signal sig_addr_cmd : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
signal sig_ac_req : t_ac_state;
signal sig_dimm_driving_dq : std_logic;
signal sig_doing_rd : std_logic_vector(MEM_IF_DQS_WIDTH * DWIDTH_RATIO/2 - 1 downto 0);
signal sig_ac_even : std_logic; -- odd/even count of PHY clock cycles.
--
-- sig_ac_even behaviour
--
-- sig_ac_even is always '1' on the cycle a command is issued. It will
-- be '1' on even clock cycles thereafter and '0' otherwise.
--
-- ; ; ; ; ; ;
-- ; _______ ; ; ; ; ;
-- XXXXX / \ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-- addr/cmd XXXXXX CMD XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-- XXXXX \_______/ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- _________ _________ _________
-- sig_ac_even ____| |_________| |_________| |__________
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- phy clk
-- count (0) (1) (2) (3) (4)
--
--
-- resync related signals
signal sig_rsc_ack : std_logic;
signal sig_rsc_err : std_logic;
signal sig_rsc_result : std_logic_vector(c_command_result_len - 1 downto 0 );
signal sig_rsc_cdvw_phase : std_logic;
signal sig_rsc_cdvw_shift_in : std_logic;
signal sig_rsc_cdvw_calc : std_logic;
signal sig_rsc_pll_start_reconfig : std_logic;
signal sig_rsc_pll_inc_dec_n : std_logic;
signal sig_rsc_ac_access_req : std_logic; -- High when the resync block requires a training pattern to be read.
-- tracking related signals
signal sig_trk_ack : std_logic;
signal sig_trk_err : std_logic;
signal sig_trk_result : std_logic_vector(c_command_result_len - 1 downto 0 );
signal sig_trk_cdvw_phase : std_logic;
signal sig_trk_cdvw_shift_in : std_logic;
signal sig_trk_cdvw_calc : std_logic;
signal sig_trk_pll_start_reconfig : std_logic;
signal sig_trk_pll_select : std_logic_vector(CLOCK_INDEX_WIDTH - 1 DOWNTO 0);
signal sig_trk_pll_inc_dec_n : std_logic;
signal sig_trk_rsc_drift : integer range -c_max_rsc_drift_in_phases to c_max_rsc_drift_in_phases; -- stores total change in rsc phase from first calibration
-- phs_shft_busy could (potentially) be asynchronous
-- triple register it for metastability hardening
-- these signals are the taps on the shift register
signal sig_phs_shft_busy : std_logic;
signal sig_phs_shft_busy_1t : std_logic;
signal sig_phs_shft_start : std_logic;
signal sig_phs_shft_end : std_logic;
-- locally register crl_dgrb to minimise fan out
signal ctrl_dgrb_r : t_ctrl_command;
-- command_op signals
signal current_cs : natural range 0 to MEM_IF_NUM_RANKS - 1;
signal current_mtp_almt : natural range 0 to 1;
signal single_bit_cal : std_logic;
-- codvw status signals (packed into record and sent to mmi block)
signal cal_codvw_phase : std_logic_vector(7 downto 0);
signal codvw_trk_shift : std_logic_vector(11 downto 0);
signal cal_codvw_size : std_logic_vector(7 downto 0);
-- error signal and result from main state machine (operations other than rsc or tracking)
signal sig_cmd_err : std_logic;
signal sig_cmd_result : std_logic_vector(c_command_result_len - 1 downto 0 );
-- signals that the training pattern matched correctly on the last clock
-- cycle.
signal sig_dq_pin_ctr : natural range 0 to MEM_IF_DWIDTH - 1;
signal sig_mtp_match : std_logic;
-- controls postamble match and timing.
signal sig_poa_match_en : std_logic;
signal sig_poa_match : std_logic;
-- postamble signals
signal sig_poa_ack : std_logic; -- '1' for postamble block to acknowledge.
-- calibration byte lane select
signal cal_byte_lanes : std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
signal codvw_grt_one_dvw : std_logic;
begin
doing_rd <= sig_doing_rd;
-- pack record of codvw status signals
dgrb_mmi.cal_codvw_phase <= cal_codvw_phase;
dgrb_mmi.codvw_trk_shift <= codvw_trk_shift;
dgrb_mmi.cal_codvw_size <= cal_codvw_size;
dgrb_mmi.codvw_grt_one_dvw <= codvw_grt_one_dvw;
-- map some internal signals to outputs
dgrb_ac <= sig_addr_cmd;
-- locally register crl_dgrb to minimise fan out
process (clk, rst_n)
begin
if rst_n = '0' then
ctrl_dgrb_r <= defaults;
elsif rising_edge(clk) then
ctrl_dgrb_r <= ctrl_dgrb;
end if;
end process;
-- generate the current_cs signal to track which cs accessed by PHY at any instance
current_cs_proc : process (clk, rst_n)
begin
if rst_n = '0' then
current_cs <= 0;
current_mtp_almt <= 0;
single_bit_cal <= '0';
cal_byte_lanes <= (others => '0');
elsif rising_edge(clk) then
if ctrl_dgrb_r.command_req = '1' then
current_cs <= ctrl_dgrb_r.command_op.current_cs;
current_mtp_almt <= ctrl_dgrb_r.command_op.mtp_almt;
single_bit_cal <= ctrl_dgrb_r.command_op.single_bit;
end if;
-- mux byte lane select for given chip select
for i in 0 to MEM_IF_DQS_WIDTH - 1 loop
cal_byte_lanes(i) <= ctl_cal_byte_lanes((current_cs * MEM_IF_DQS_WIDTH) + i);
end loop;
assert ctl_cal_byte_lanes(0) = '1' report dgrb_report_prefix & " Byte lane 0 (chip select 0) disable is not supported - ending simulation" severity failure;
end if;
end process;
-- ------------------------------------------------------------------
-- main state machine for dgrb architecture
--
-- process of commands from control (ctrl) block and overall control of
-- the subsequent calibration processing functions
-- also communicates completion and any errors back to the ctrl block
-- read data valid alignment and advertised latency calculations are
-- included in this block
-- ------------------------------------------------------------------
dgrb_main_block : block
signal sig_count : natural range 0 to 2**8 - 1;
signal sig_wd_lat : std_logic_vector(ADV_LAT_WIDTH - 1 downto 0);
begin
dgrb_state_proc : process(rst_n, clk)
begin
if rst_n = '0' then
-- initialise state
sig_dgrb_state <= s_idle;
sig_dgrb_last_state <= s_idle;
sig_ac_req <= s_ac_idle;
sig_rsc_req <= s_rsc_idle;
-- set up rd_lat defaults
rd_lat <= c_default_rd_lat_slv;
wd_lat <= c_default_wd_lat_slv;
-- set up rdata_valid latency control defaults
seq_rdata_valid_lat_inc <= '0';
seq_rdata_valid_lat_dec <= '0';
-- reset counter
sig_count <= 0;
-- error signals
sig_cmd_err <= '0';
sig_cmd_result <= (others => '0');
-- sig_wd_lat
sig_wd_lat <= (others => '0');
-- status of the ac_nt alignment
dgrb_ctrl_ac_nt_good <= '1';
elsif rising_edge(clk) then
sig_dgrb_last_state <= sig_dgrb_state;
sig_rsc_req <= s_rsc_idle;
-- set up rdata_valid latency control defaults
seq_rdata_valid_lat_inc <= '0';
seq_rdata_valid_lat_dec <= '0';
-- error signals
sig_cmd_err <= '0';
sig_cmd_result <= (others => '0');
-- register wd_lat output.
wd_lat <= sig_wd_lat;
case sig_dgrb_state is
when s_idle =>
sig_count <= 0;
if ctrl_dgrb_r.command_req = '1' then
if curr_active_block(ctrl_dgrb_r.command) = dgrb then
sig_dgrb_state <= s_wait_admin;
end if;
end if;
sig_ac_req <= s_ac_idle;
when s_wait_admin =>
sig_dgrb_state <= s_wait_admin;
case ctrl_dgrb_r.command is
when cmd_read_mtp => sig_dgrb_state <= s_read_mtp;
when cmd_rrp_reset => sig_dgrb_state <= s_reset_cdvw;
when cmd_rrp_sweep => sig_dgrb_state <= s_test_phases;
when cmd_rrp_seek => sig_dgrb_state <= s_seek_cdvw;
when cmd_rdv => sig_dgrb_state <= s_rdata_valid_align;
when cmd_prep_adv_rd_lat => sig_dgrb_state <= s_adv_rd_lat_setup;
when cmd_prep_adv_wr_lat => sig_dgrb_state <= s_adv_wd_lat;
when cmd_tr_due => sig_dgrb_state <= s_track;
when cmd_poa => sig_dgrb_state <= s_poa_cal;
when others =>
report dgrb_report_prefix & "unknown command" severity failure;
sig_dgrb_state <= s_idle;
end case;
when s_reset_cdvw =>
-- the cdvw proc watches for this state and resets the cdvw
-- state block.
if sig_rsc_ack = '1' then
sig_dgrb_state <= s_release_admin;
else
sig_rsc_req <= s_rsc_reset_cdvw;
end if;
when s_test_phases =>
if sig_rsc_ack = '1' then
sig_dgrb_state <= s_release_admin;
else
sig_rsc_req <= s_rsc_test_phase;
if sig_rsc_ac_access_req = '1' then
sig_ac_req <= s_ac_read_mtp;
else
sig_ac_req <= s_ac_idle;
end if;
end if;
when s_seek_cdvw | s_read_mtp =>
if sig_rsc_ack = '1' then
sig_dgrb_state <= s_release_admin;
else
sig_rsc_req <= s_rsc_cdvw_calc;
end if;
when s_release_admin =>
sig_ac_req <= s_ac_idle;
if dgrb_ac_access_gnt = '0' and sig_dimm_driving_dq = '0' then
sig_dgrb_state <= s_idle;
end if;
when s_rdata_valid_align =>
sig_ac_req <= s_ac_read_rdv;
seq_rdata_valid_lat_dec <= '0';
seq_rdata_valid_lat_inc <= '0';
if sig_dimm_driving_dq = '1' then
-- only do comparison if rdata_valid is all 'ones'
if rdata_valid /= std_logic_vector(to_unsigned(0, DWIDTH_RATIO/2)) then
-- rdata_valid is all ones
if rdata_valid_aligned(rdata, rdata_valid) = '1' then
-- success: rdata_valid and rdata are properly aligned
sig_dgrb_state <= s_release_admin;
else
-- misaligned: bring in rdata_valid by a clock cycle
seq_rdata_valid_lat_dec <= '1';
end if;
end if;
end if;
when s_adv_rd_lat_setup =>
-- wait for sig_doing_rd to go high
sig_ac_req <= s_ac_read_rdv;
if sig_dgrb_state /= sig_dgrb_last_state then
rd_lat <= (others => '0');
sig_count <= 0;
elsif sig_dimm_driving_dq = '1' and sig_doing_rd(MEM_IF_DQS_WIDTH*(DWIDTH_RATIO/2-1)) = '1' then
-- a read has started: start counter
sig_dgrb_state <= s_adv_rd_lat;
end if;
when s_adv_rd_lat =>
sig_ac_req <= s_ac_read_rdv;
if sig_dimm_driving_dq = '1' then
if sig_count >= 2**rd_lat'length then
report dgrb_report_prefix & "maximum read latency exceeded while waiting for rdata_valid" severity cal_fail_sev_level;
sig_cmd_err <= '1';
sig_cmd_result <= std_logic_vector(to_unsigned(C_ERR_MAX_RD_LAT_EXCEEDED,sig_cmd_result'length));
end if;
if rdata_valid /= std_logic_vector(to_unsigned(0, rdata_valid'length)) then
-- have found the read latency
sig_dgrb_state <= s_release_admin;
else
sig_count <= sig_count + 1;
end if;
rd_lat <= std_logic_vector(to_unsigned(sig_count, rd_lat'length));
end if;
when s_adv_wd_lat =>
sig_ac_req <= s_ac_read_wd_lat;
if sig_dgrb_state /= sig_dgrb_last_state then
sig_wd_lat <= (others => '0');
else
if sig_dimm_driving_dq = '1' and rdata_valid /= std_logic_vector(to_unsigned(0, rdata_valid'length)) then
-- construct wd_lat using data from the lowest addresses
-- wd_lat <= rdata(MEM_IF_DQ_PER_DQS - 1 downto 0);
sig_wd_lat <= wd_lat_from_rdata(rdata);
sig_dgrb_state <= s_release_admin;
-- check data integrity
for i in 1 to MEM_IF_DWIDTH/set_wlat_dq_rep_width - 1 loop
-- wd_lat is copied across MEM_IF_DWIDTH bits in fields of width MEM_IF_DQ_PER_DQS.
-- All of these fields must have the same value or it is an error.
-- only check if byte lane not disabled
if cal_byte_lanes((i*set_wlat_dq_rep_width)/MEM_IF_DQ_PER_DQS) = '1' then
if rdata(set_wlat_dq_rep_width - 1 downto 0) /= rdata((i+1)*set_wlat_dq_rep_width - 1 downto i*set_wlat_dq_rep_width) then
-- signal write latency different between DQS groups
report dgrb_report_prefix & "the write latency read from memory is different accross dqs groups" severity cal_fail_sev_level;
sig_cmd_err <= '1';
sig_cmd_result <= std_logic_vector(to_unsigned(C_ERR_WD_LAT_DISAGREEMENT, sig_cmd_result'length));
end if;
end if;
end loop;
-- check if ac_nt alignment is ok
-- in this condition all DWIDTH_RATIO copies of rdata should be identical
dgrb_ctrl_ac_nt_good <= '1';
if DWIDTH_RATIO /= 2 then
for j in 0 to DWIDTH_RATIO/2 - 1 loop
if rdata(j*MEM_IF_DWIDTH + MEM_IF_DQ_PER_DQS - 1 downto j*MEM_IF_DWIDTH) /= rdata((j+2)*MEM_IF_DWIDTH + MEM_IF_DQ_PER_DQS - 1 downto (j+2)*MEM_IF_DWIDTH) then
dgrb_ctrl_ac_nt_good <= '0';
end if;
end loop;
end if;
end if;
end if;
when s_poa_cal =>
-- Request the address/command block begins reading the "M"
-- training pattern here. There is no provision for doing
-- refreshes so this limits the time spent in this state
-- to 9 x tREFI (by the DDR2 JEDEC spec). Instead of the
-- maximum value, a maximum "safe" time in this postamble
-- state is chosen to be tpoamax = 5 x tREFI = 5 x 3.9us.
-- When entering this s_poa_cal state it must be guaranteed
-- that the number of stacked refreshes is at maximum.
--
-- Minimum clock freq supported by DRAM is fck,min=125MHz.
-- Each adjustment to postamble latency requires 16*clock
-- cycles (time to read "M" training pattern twice) so
-- maximum number of adjustments to POA latency (n) is:
--
-- n = (5 x trefi x fck,min) / 16
-- = (5 x 3.9us x 125MHz) / 16
-- ~ 152
--
-- Postamble latency must be adjusted less than 152 cycles
-- to meet this requirement.
--
sig_ac_req <= s_ac_read_poa_mtp;
if sig_poa_ack = '1' then
sig_dgrb_state <= s_release_admin;
end if;
when s_track =>
if sig_trk_ack = '1' then
sig_dgrb_state <= s_release_admin;
end if;
when others => null;
report dgrb_report_prefix & "undefined state" severity failure;
sig_dgrb_state <= s_idle;
end case;
-- default if not calibrating go to idle state via s_release_admin
if ctrl_dgrb_r.command = cmd_idle and
sig_dgrb_state /= s_idle and
sig_dgrb_state /= s_release_admin then
sig_dgrb_state <= s_release_admin;
end if;
end if;
end process;
end block;
-- ------------------------------------------------------------------
-- metastability hardening of potentially async phs_shift_busy signal
--
-- Triple register it for metastability hardening. This process
-- creates the shift register. Also add a sig_phs_shft_busy and
-- an sig_phs_shft_busy_1t echo because various other processes find
-- this useful.
-- ------------------------------------------------------------------
phs_shft_busy_reg: block
signal phs_shft_busy_1r : std_logic;
signal phs_shft_busy_2r : std_logic;
signal phs_shft_busy_3r : std_logic;
begin
phs_shift_busy_sync : process (clk, rst_n)
begin
if rst_n = '0' then
sig_phs_shft_busy <= '0';
sig_phs_shft_busy_1t <= '0';
phs_shft_busy_1r <= '0';
phs_shft_busy_2r <= '0';
phs_shft_busy_3r <= '0';
sig_phs_shft_start <= '0';
sig_phs_shft_end <= '0';
elsif rising_edge(clk) then
sig_phs_shft_busy_1t <= phs_shft_busy_3r;
sig_phs_shft_busy <= phs_shft_busy_2r;
-- register the below to reduce fan out on sig_phs_shft_busy and sig_phs_shft_busy_1t
sig_phs_shft_start <= phs_shft_busy_3r or phs_shft_busy_2r;
sig_phs_shft_end <= phs_shft_busy_3r and not(phs_shft_busy_2r);
phs_shft_busy_3r <= phs_shft_busy_2r;
phs_shft_busy_2r <= phs_shft_busy_1r;
phs_shft_busy_1r <= phs_shft_busy;
end if;
end process;
end block;
-- ------------------------------------------------------------------
-- PLL reconfig MUX
--
-- switches PLL Reconfig input between tracking and resync blocks
-- ------------------------------------------------------------------
pll_reconf_mux : process (clk, rst_n)
begin
if rst_n = '0' then
seq_pll_inc_dec_n <= '0';
seq_pll_select <= (others => '0');
seq_pll_start_reconfig <= '0';
elsif rising_edge(clk) then
if sig_dgrb_state = s_seek_cdvw or
sig_dgrb_state = s_test_phases or
sig_dgrb_state = s_reset_cdvw then
seq_pll_select <= pll_resync_clk_index;
seq_pll_inc_dec_n <= sig_rsc_pll_inc_dec_n;
seq_pll_start_reconfig <= sig_rsc_pll_start_reconfig;
elsif sig_dgrb_state = s_track then
seq_pll_select <= sig_trk_pll_select;
seq_pll_inc_dec_n <= sig_trk_pll_inc_dec_n;
seq_pll_start_reconfig <= sig_trk_pll_start_reconfig;
else
seq_pll_select <= pll_measure_clk_index;
seq_pll_inc_dec_n <= '0';
seq_pll_start_reconfig <= '0';
end if;
end if;
end process;
-- ------------------------------------------------------------------
-- Centre of data valid window calculation block
--
-- This block handles the sharing of the centre of window calculation
-- logic between the rsc and trk operations. Functions defined in the
-- header of this entity are called to do this.
-- ------------------------------------------------------------------
cdvw_block : block
signal sig_cdvw_calc_1t : std_logic;
begin
-- purpose: manages centre of data valid window calculations
-- type : sequential
-- inputs : clk, rst_n
-- outputs: sig_cdvw_state
cdvw_proc: process (clk, rst_n)
variable v_cdvw_state : t_window_processing;
variable v_start_calc : std_logic;
variable v_shift_in : std_logic;
variable v_phase : std_logic;
begin -- process cdvw_proc
if rst_n = '0' then -- asynchronous reset (active low)
sig_cdvw_state <= defaults;
sig_cdvw_calc_1t <= '0';
elsif rising_edge(clk) then -- rising clock edge
v_cdvw_state := sig_cdvw_state;
case sig_dgrb_state is
when s_track =>
v_start_calc := sig_trk_cdvw_calc;
v_phase := sig_trk_cdvw_phase;
v_shift_in := sig_trk_cdvw_shift_in;
when s_read_mtp | s_seek_cdvw | s_test_phases =>
v_start_calc := sig_rsc_cdvw_calc;
v_phase := sig_rsc_cdvw_phase;
v_shift_in := sig_rsc_cdvw_shift_in;
when others =>
v_start_calc := '0';
v_phase := '0';
v_shift_in := '0';
end case;
if sig_dgrb_state = s_reset_cdvw or (sig_dgrb_state = s_track and sig_dgrb_last_state /= s_track) then
-- reset *C*entre of *D*ata *V*alid *W*indow
v_cdvw_state := defaults;
elsif sig_cdvw_calc_1t /= '1' and v_start_calc = '1' then
initialise_window_for_proc(v_cdvw_state);
elsif v_cdvw_state.status = calculating then
if sig_dgrb_state = s_track then -- ensure 360 degrees sweep
find_centre_of_largest_data_valid_window(v_cdvw_state, PLL_STEPS_PER_CYCLE);
else -- can be a 720 degrees sweep
find_centre_of_largest_data_valid_window(v_cdvw_state, c_max_phase_shifts);
end if;
elsif v_shift_in = '1' then
if sig_dgrb_state = s_track then -- ensure 360 degrees sweep
shift_in(v_cdvw_state, v_phase, PLL_STEPS_PER_CYCLE);
else
shift_in(v_cdvw_state, v_phase, c_max_phase_shifts);
end if;
end if;
sig_cdvw_calc_1t <= v_start_calc;
sig_cdvw_state <= v_cdvw_state;
end if;
end process cdvw_proc;
end block;
-- ------------------------------------------------------------------
-- block for resync calculation.
--
-- This block implements the following:
-- 1) Control logic for the rsc slave state machine
-- 2) Processing of resync operations - through reports form cdvw block and
-- test pattern match blocks
-- 3) Shifting of the resync phase for rsc sweeps
-- 4) Writing of results to iram (optional)
-- ------------------------------------------------------------------
rsc_block : block
signal sig_rsc_state : t_resync_state;
signal sig_rsc_last_state : t_resync_state;
signal sig_num_phase_shifts : natural range c_max_phase_shifts - 1 downto 0;
signal sig_rewind_direction : std_logic;
signal sig_count : natural range 0 to 2**8 - 1;
signal sig_test_dq_expired : std_logic;
signal sig_chkd_all_dq_pins : std_logic;
-- prompts to write data to iram
signal sig_dgrb_iram : t_iram_push; -- internal copy of dgrb to iram control signals
signal sig_rsc_push_rrp_sweep : std_logic; -- push result of a rrp sweep pass (for cmd_rrp_sweep)
signal sig_rsc_push_rrp_pass : std_logic; -- result of a rrp sweep result (for cmd_rrp_sweep)
signal sig_rsc_push_rrp_seek : std_logic; -- write seek results (for cmd_rrp_seek / cmd_read_mtp states)
signal sig_rsc_push_footer : std_logic; -- write a footer
signal sig_dq_pin_ctr_r : natural range 0 to MEM_IF_DWIDTH - 1; -- registered version of dq_pin_ctr
signal sig_rsc_curr_phase : natural range 0 to c_max_phase_shifts - 1; -- which phase is being processed
signal sig_iram_idle : std_logic; -- track if iram currently writing data
signal sig_mtp_match_en : std_logic;
-- current byte lane disabled?
signal sig_curr_byte_ln_dis : std_logic;
signal sig_iram_wds_req : integer; -- words required for a given iram dump (used to locate where to write footer)
begin
-- When using DQS capture or not at full-rate only match on "even" clock cycles.
sig_mtp_match_en <= active_high(sig_ac_even = '1' or MEM_IF_DQS_CAPTURE = 0 or DWIDTH_RATIO /= 2);
-- register current byte lane disable mux for speed
byte_lane_dis: process (clk, rst_n)
begin
if rst_n = '0' then
sig_curr_byte_ln_dis <= '0';
elsif rising_edge(clk) then
sig_curr_byte_ln_dis <= cal_byte_lanes(sig_dq_pin_ctr/MEM_IF_DQ_PER_DQS);
end if;
end process;
-- check if all dq pins checked in rsc sweep
chkd_dq : process (clk, rst_n)
begin
if rst_n = '0' then
sig_chkd_all_dq_pins <= '0';
elsif rising_edge(clk) then
if sig_dq_pin_ctr = 0 then
sig_chkd_all_dq_pins <= '1';
else
sig_chkd_all_dq_pins <= '0';
end if;
end if;
end process;
-- main rsc process
rsc_proc : process (clk, rst_n)
-- these are temporary variables which should not infer FFs and
-- are not guaranteed to be initialized by s_rsc_idle.
variable v_rdata_correct : std_logic;
variable v_phase_works : std_logic;
begin
if rst_n = '0' then
-- initialise signals
sig_rsc_state <= s_rsc_idle;
sig_rsc_last_state <= s_rsc_idle;
sig_dq_pin_ctr <= 0;
sig_num_phase_shifts <= c_max_phase_shifts - 1; -- want c_max_phase_shifts-1 inc / decs of phase
sig_count <= 0;
sig_test_dq_expired <= '0';
v_phase_works := '0';
-- interface to other processes to tell them when we are done.
sig_rsc_ack <= '0';
sig_rsc_err <= '0';
sig_rsc_result <= std_logic_vector(to_unsigned(C_SUCCESS, c_command_result_len));
-- centre of data valid window functions
sig_rsc_cdvw_phase <= '0';
sig_rsc_cdvw_shift_in <= '0';
sig_rsc_cdvw_calc <= '0';
-- set up PLL reconfig interface controls
sig_rsc_pll_start_reconfig <= '0';
sig_rsc_pll_inc_dec_n <= c_pll_phs_inc;
sig_rewind_direction <= c_pll_phs_dec;
-- True when access to the ac_block is required.
sig_rsc_ac_access_req <= '0';
-- default values on centre and size of data valid window
if SIM_TIME_REDUCTIONS = 1 then
cal_codvw_phase <= std_logic_vector(to_unsigned(PRESET_CODVW_PHASE, 8));
cal_codvw_size <= std_logic_vector(to_unsigned(PRESET_CODVW_SIZE, 8));
else
cal_codvw_phase <= (others => '0');
cal_codvw_size <= (others => '0');
end if;
sig_rsc_push_rrp_sweep <= '0';
sig_rsc_push_rrp_seek <= '0';
sig_rsc_push_rrp_pass <= '0';
sig_rsc_push_footer <= '0';
codvw_grt_one_dvw <= '0';
elsif rising_edge(clk) then
-- default values assigned to some signals
sig_rsc_ack <= '0';
sig_rsc_cdvw_phase <= '0';
sig_rsc_cdvw_shift_in <= '0';
sig_rsc_cdvw_calc <= '0';
sig_rsc_pll_start_reconfig <= '0';
sig_rsc_pll_inc_dec_n <= c_pll_phs_inc;
sig_rewind_direction <= c_pll_phs_dec;
-- by default don't ask the resync block to read anything
sig_rsc_ac_access_req <= '0';
sig_rsc_push_rrp_sweep <= '0';
sig_rsc_push_rrp_seek <= '0';
sig_rsc_push_rrp_pass <= '0';
sig_rsc_push_footer <= '0';
sig_test_dq_expired <= '0';
-- resync state machine
case sig_rsc_state is
when s_rsc_idle =>
-- initialize those signals we are ready to use.
sig_dq_pin_ctr <= 0;
sig_count <= 0;
if sig_rsc_state = sig_rsc_last_state then -- avoid transition when acknowledging a command has finished
if sig_rsc_req = s_rsc_test_phase then
sig_rsc_state <= s_rsc_test_phase;
elsif sig_rsc_req = s_rsc_cdvw_calc then
sig_rsc_state <= s_rsc_cdvw_calc;
elsif sig_rsc_req = s_rsc_seek_cdvw then
sig_rsc_state <= s_rsc_seek_cdvw;
elsif sig_rsc_req = s_rsc_reset_cdvw then
sig_rsc_state <= s_rsc_reset_cdvw;
else
sig_rsc_state <= s_rsc_idle;
end if;
end if;
when s_rsc_next_phase =>
sig_rsc_pll_inc_dec_n <= c_pll_phs_inc;
sig_rsc_pll_start_reconfig <= '1';
if sig_phs_shft_start = '1' then
-- PLL phase shift started - so stop requesting a shift
sig_rsc_pll_start_reconfig <= '0';
end if;
if sig_phs_shft_end = '1' then
-- PLL phase shift finished - so proceed to flush the datapath
sig_num_phase_shifts <= sig_num_phase_shifts - 1;
sig_rsc_state <= s_rsc_test_phase;
end if;
when s_rsc_test_phase =>
v_phase_works := '1';
-- Note: For single pin single CS calibration set sig_dq_pin_ctr to 0 to
-- ensure that only 1 pin calibrated
sig_rsc_state <= s_rsc_wait_for_idle_dimm;
if single_bit_cal = '1' then
sig_dq_pin_ctr <= 0;
else
sig_dq_pin_ctr <= MEM_IF_DWIDTH-1;
end if;
when s_rsc_wait_for_idle_dimm =>
if sig_dimm_driving_dq = '0' then
sig_rsc_state <= s_rsc_flush_datapath;
end if;
when s_rsc_flush_datapath =>
sig_rsc_ac_access_req <= '1';
if sig_rsc_state /= sig_rsc_last_state then
-- reset variables we are interested in when we first arrive in this state.
sig_count <= c_max_read_lat - 1;
else
if sig_dimm_driving_dq = '1' then
if sig_count = 0 then
sig_rsc_state <= s_rsc_test_dq;
else
sig_count <= sig_count - 1;
end if;
end if;
end if;
when s_rsc_test_dq =>
sig_rsc_ac_access_req <= '1';
if sig_rsc_state /= sig_rsc_last_state then
-- reset variables we are interested in when we first arrive in this state.
sig_count <= 2*c_cal_mtp_t;
else
if sig_dimm_driving_dq = '1' then
if (
(sig_mtp_match = '1' and sig_mtp_match_en = '1') or -- have a pattern match
(sig_test_dq_expired = '1') or -- time in this phase has expired.
sig_curr_byte_ln_dis = '0' -- byte lane disabled
) then
v_phase_works := v_phase_works and ((sig_mtp_match and sig_mtp_match_en) or (not sig_curr_byte_ln_dis));
sig_rsc_push_rrp_sweep <= '1';
sig_rsc_push_rrp_pass <= (sig_mtp_match and sig_mtp_match_en) or (not sig_curr_byte_ln_dis);
if sig_chkd_all_dq_pins = '1' then
-- finished checking all dq pins.
-- done checking this phase.
-- shift phase status into
sig_rsc_cdvw_phase <= v_phase_works;
sig_rsc_cdvw_shift_in <= '1';
if sig_num_phase_shifts /= 0 then
-- there are more phases to test so shift to next phase
sig_rsc_state <= s_rsc_next_phase;
else
-- no more phases to check.
-- clean up after ourselves by
-- going into s_rsc_rewind_phase
sig_rsc_state <= s_rsc_rewind_phase;
sig_rewind_direction <= c_pll_phs_dec;
sig_num_phase_shifts <= c_max_phase_shifts - 1;
end if;
else
-- shift to next dq pin
if MEM_IF_DWIDTH > 71 and -- if >= 72 pins then:
(sig_dq_pin_ctr mod 64) = 0 then -- ensure refreshes at least once every 64 pins
sig_rsc_state <= s_rsc_wait_for_idle_dimm;
else -- otherwise continue sweep
sig_rsc_state <= s_rsc_flush_datapath;
end if;
sig_dq_pin_ctr <= sig_dq_pin_ctr - 1;
end if;
else
sig_count <= sig_count - 1;
if sig_count = 1 then
sig_test_dq_expired <= '1';
end if;
end if;
end if;
end if;
when s_rsc_reset_cdvw =>
sig_rsc_state <= s_rsc_rewind_phase;
-- determine the amount to rewind by (may be wind forward depending on tracking behaviour)
if to_integer(unsigned(cal_codvw_phase)) + sig_trk_rsc_drift < 0 then
sig_num_phase_shifts <= - (to_integer(unsigned(cal_codvw_phase)) + sig_trk_rsc_drift);
sig_rewind_direction <= c_pll_phs_inc;
else
sig_num_phase_shifts <= (to_integer(unsigned(cal_codvw_phase)) + sig_trk_rsc_drift);
sig_rewind_direction <= c_pll_phs_dec;
end if;
-- reset the calibrated phase and size to zero (because un-doing prior calibration here)
cal_codvw_phase <= (others => '0');
cal_codvw_size <= (others => '0');
when s_rsc_rewind_phase =>
-- rewinds the resync PLL by sig_num_phase_shifts steps and returns to idle state
if sig_num_phase_shifts = 0 then
-- no more steps to take off, go to next state
sig_num_phase_shifts <= c_max_phase_shifts - 1;
if GENERATE_ADDITIONAL_DBG_RTL = 1 then -- if iram present hold off until access finished
sig_rsc_state <= s_rsc_wait_iram;
else
sig_rsc_ack <= '1';
sig_rsc_state <= s_rsc_idle;
end if;
else
sig_rsc_pll_inc_dec_n <= sig_rewind_direction;
-- request a phase shift
sig_rsc_pll_start_reconfig <= '1';
if sig_phs_shft_busy = '1' then
-- inhibit a phase shift if phase shift is busy.
sig_rsc_pll_start_reconfig <= '0';
end if;
if sig_phs_shft_busy_1t = '1' and sig_phs_shft_busy /= '1' then
-- we've just successfully removed a phase step
-- decrement counter
sig_num_phase_shifts <= sig_num_phase_shifts - 1;
sig_rsc_pll_start_reconfig <= '0';
end if;
end if;
when s_rsc_cdvw_calc =>
if sig_rsc_state /= sig_rsc_last_state then
if sig_dgrb_state = s_read_mtp then
report dgrb_report_prefix & "gathered resync phase samples (for mtp alignment " & natural'image(current_mtp_almt) & ") is DGRB_PHASE_SAMPLES: " & str(sig_cdvw_state.working_window) severity note;
else
report dgrb_report_prefix & "gathered resync phase samples DGRB_PHASE_SAMPLES: " & str(sig_cdvw_state.working_window) severity note;
end if;
sig_rsc_cdvw_calc <= '1'; -- begin calculating result
else
sig_rsc_state <= s_rsc_cdvw_wait;
end if;
when s_rsc_cdvw_wait =>
if sig_cdvw_state.status /= calculating then
-- a result has been reached.
if sig_dgrb_state = s_read_mtp then -- if doing mtp alignment then skip setting phase
if GENERATE_ADDITIONAL_DBG_RTL = 1 then -- if iram present hold off until access finished
sig_rsc_state <= s_rsc_wait_iram;
else
sig_rsc_ack <= '1';
sig_rsc_state <= s_rsc_idle;
end if;
else
if sig_cdvw_state.status = valid_result then
-- calculation successfully found a
-- data-valid window to seek to.
sig_rsc_state <= s_rsc_seek_cdvw;
sig_rsc_result <= std_logic_vector(to_unsigned(C_SUCCESS, sig_rsc_result'length));
-- If more than one data valid window was seen, then set the result code :
if (sig_cdvw_state.windows_seen > 1) then
report dgrb_report_prefix & "Warning : multiple data-valid windows found, largest chosen." severity note;
codvw_grt_one_dvw <= '1';
else
report dgrb_report_prefix & "data-valid window found successfully." severity note;
end if;
else
-- calculation failed to find a data-valid window.
report dgrb_report_prefix & "couldn't find a data-valid window in resync." severity warning;
sig_rsc_ack <= '1';
sig_rsc_err <= '1';
sig_rsc_state <= s_rsc_idle;
-- set resync result code
case sig_cdvw_state.status is
when no_invalid_phases =>
sig_rsc_result <= std_logic_vector(to_unsigned(C_ERR_RESYNC_NO_VALID_PHASES, sig_rsc_result'length));
when multiple_equal_windows =>
sig_rsc_result <= std_logic_vector(to_unsigned(C_ERR_RESYNC_MULTIPLE_EQUAL_WINDOWS, sig_rsc_result'length));
when no_valid_phases =>
sig_rsc_result <= std_logic_vector(to_unsigned(C_ERR_RESYNC_NO_VALID_PHASES, sig_rsc_result'length));
when others =>
sig_rsc_result <= std_logic_vector(to_unsigned(C_ERR_CRITICAL, sig_rsc_result'length));
end case;
end if;
end if;
-- signal to write a rrp_sweep result to iram
if GENERATE_ADDITIONAL_DBG_RTL = 1 then
sig_rsc_push_rrp_seek <= '1';
end if;
end if;
when s_rsc_seek_cdvw =>
if sig_rsc_state /= sig_rsc_last_state then
-- reset variables we are interested in when we first arrive in this state
sig_count <= sig_cdvw_state.largest_window_centre;
else
if sig_count = 0 or
((MEM_IF_DQS_CAPTURE = 1 and DWIDTH_RATIO = 2) and
sig_count = PLL_STEPS_PER_CYCLE) -- if FR and DQS capture ensure within 0-360 degrees phase
then
-- ready to transition to next state
if GENERATE_ADDITIONAL_DBG_RTL = 1 then -- if iram present hold off until access finished
sig_rsc_state <= s_rsc_wait_iram;
else
sig_rsc_ack <= '1';
sig_rsc_state <= s_rsc_idle;
end if;
-- return largest window centre and size in the result
-- perform cal_codvw phase / size update only if a valid result is found
if sig_cdvw_state.status = valid_result then
cal_codvw_phase <= std_logic_vector(to_unsigned(sig_cdvw_state.largest_window_centre, 8));
cal_codvw_size <= std_logic_vector(to_unsigned(sig_cdvw_state.largest_window_size, 8));
end if;
-- leaving sig_rsc_err or sig_rsc_result at
-- their default values (of success)
else
sig_rsc_pll_inc_dec_n <= c_pll_phs_inc;
-- request a phase shift
sig_rsc_pll_start_reconfig <= '1';
if sig_phs_shft_start = '1' then
-- inhibit a phase shift if phase shift is busy
sig_rsc_pll_start_reconfig <= '0';
end if;
if sig_phs_shft_end = '1' then
-- we've just successfully removed a phase step
-- decrement counter
sig_count <= sig_count - 1;
end if;
end if;
end if;
when s_rsc_wait_iram =>
-- hold off check 1 clock cycle to enable last rsc push operations to start
if sig_rsc_state = sig_rsc_last_state then
if sig_iram_idle = '1' then
sig_rsc_ack <= '1';
sig_rsc_state <= s_rsc_idle;
if sig_dgrb_state = s_test_phases or
sig_dgrb_state = s_seek_cdvw or
sig_dgrb_state = s_read_mtp then
sig_rsc_push_footer <= '1';
end if;
end if;
end if;
when others =>
null;
end case;
sig_rsc_last_state <= sig_rsc_state;
end if;
end process;
-- write results to the iram
iram_push: process (clk, rst_n)
begin
if rst_n = '0' then
sig_dgrb_iram <= defaults;
sig_iram_idle <= '0';
sig_dq_pin_ctr_r <= 0;
sig_rsc_curr_phase <= 0;
sig_iram_wds_req <= 0;
elsif rising_edge(clk) then
if GENERATE_ADDITIONAL_DBG_RTL = 1 then
if sig_dgrb_iram.iram_write = '1' and sig_dgrb_iram.iram_done = '1' then
report dgrb_report_prefix & "iram_done and iram_write signals concurrently set - iram contents may be corrupted" severity failure;
end if;
if sig_dgrb_iram.iram_write = '0' and sig_dgrb_iram.iram_done = '0' then
sig_iram_idle <= '1';
else
sig_iram_idle <= '0';
end if;
-- registered sig_dq_pin_ctr to align with rrp_sweep result
sig_dq_pin_ctr_r <= sig_dq_pin_ctr;
-- calculate current phase (registered to align with rrp_sweep result)
sig_rsc_curr_phase <= (c_max_phase_shifts - 1) - sig_num_phase_shifts;
-- serial push of rrp_sweep results into memory
if sig_rsc_push_rrp_sweep = '1' then
-- signal an iram write and track a write pending
sig_dgrb_iram.iram_write <= '1';
sig_iram_idle <= '0';
-- if not single_bit_cal then pack pin phase results in MEM_IF_DWIDTH word blocks
if single_bit_cal = '1' then
sig_dgrb_iram.iram_wordnum <= sig_dq_pin_ctr_r + (sig_rsc_curr_phase/32);
sig_iram_wds_req <= iram_wd_for_one_pin_rrp( DWIDTH_RATIO, PLL_STEPS_PER_CYCLE, MEM_IF_DWIDTH, MEM_IF_DQS_CAPTURE); -- note total word requirement
else
sig_dgrb_iram.iram_wordnum <= sig_dq_pin_ctr_r + (sig_rsc_curr_phase/32) * MEM_IF_DWIDTH;
sig_iram_wds_req <= iram_wd_for_full_rrp( DWIDTH_RATIO, PLL_STEPS_PER_CYCLE, MEM_IF_DWIDTH, MEM_IF_DQS_CAPTURE); -- note total word requirement
end if;
-- check if current pin and phase passed:
sig_dgrb_iram.iram_pushdata(0) <= sig_rsc_push_rrp_pass;
-- bit offset is modulo phase
sig_dgrb_iram.iram_bitnum <= sig_rsc_curr_phase mod 32;
end if;
-- write result of rrp_calc to iram when completed
if sig_rsc_push_rrp_seek = '1' then -- a result found
sig_dgrb_iram.iram_write <= '1';
sig_iram_idle <= '0';
sig_dgrb_iram.iram_wordnum <= 0;
sig_iram_wds_req <= 1; -- note total word requirement
if sig_cdvw_state.status = valid_result then -- result is valid
sig_dgrb_iram.iram_pushdata <= x"0000" &
std_logic_vector(to_unsigned(sig_cdvw_state.largest_window_centre, 8)) &
std_logic_vector(to_unsigned(sig_cdvw_state.largest_window_size, 8));
else -- invalid result (error code communicated elsewhere)
sig_dgrb_iram.iram_pushdata <= x"FFFF" & -- signals an error condition
x"0000";
end if;
end if;
-- when stage finished write footer
if sig_rsc_push_footer = '1' then
sig_dgrb_iram.iram_done <= '1';
sig_iram_idle <= '0';
-- set address location of footer
sig_dgrb_iram.iram_wordnum <= sig_iram_wds_req;
end if;
-- if write completed deassert iram_write and done signals
if iram_push_done = '1' then
sig_dgrb_iram.iram_write <= '0';
sig_dgrb_iram.iram_done <= '0';
end if;
else
sig_iram_idle <= '0';
sig_dq_pin_ctr_r <= 0;
sig_rsc_curr_phase <= 0;
sig_dgrb_iram <= defaults;
end if;
end if;
end process;
-- concurrently assign sig_dgrb_iram to dgrb_iram
dgrb_iram <= sig_dgrb_iram;
end block; -- resync calculation
-- ------------------------------------------------------------------
-- test pattern match block
--
-- This block handles the sharing of logic for test pattern matching
-- which is used in resync and postamble calibration / code blocks
-- ------------------------------------------------------------------
tp_match_block : block
--
-- Ascii Waveforms:
--
-- ; ; ; ; ; ;
-- ____ ____ ____ ____ ____ ____
-- delayed_dqs |____| |____| |____| |____| |____| |____| |____|
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; _______ ; _______ ; _______ ; _______ ; _______ _______
-- XXXXX / \ / \ / \ / \ / \ / \
-- c0,c1 XXXXXX A B X C D X E F X G H X I J X L M X captured data
-- XXXXX \_______/ \_______/ \_______/ \_______/ \_______/ \_______/
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ____; ____; ____ ____ ____ ____ ____
-- 180-resync_clk |____| |____| |____| |____| |____| |____| | 180deg shift from delayed dqs
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; _______ _______ _______ _______ _______ ____
-- XXXXXXXXXX / \ / \ / \ / \ / \ /
-- 180-r0,r1 XXXXXXXXXXX A B X C D X E F X G H X I J X L resync data
-- XXXXXXXXXX \_______/ \_______/ \_______/ \_______/ \_______/ \____
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ____ ____ ____ ____ ____ ____
-- 360-resync_clk ____| |____| |____| |____| |____| |____| |____|
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; ; _______ ; _______ ; _______ ; _______ ; _______
-- XXXXXXXXXXXXXXX / \ / \ / \ / \ / \
-- 360-r0,r1 XXXXXXXXXXXXXXXX A B X C D X E F X G H X I J X resync data
-- XXXXXXXXXXXXXXX \_______/ \_______/ \_______/ \_______/ \_______/
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ____ ____ ____ ____ ____ ____ ____
-- 540-resync_clk |____| |____| |____| |____| |____| |____| |
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; ; _______ _______ _______ _______ ____
-- XXXXXXXXXXXXXXXXXXX / \ / \ / \ / \ /
-- 540-r0,r1 XXXXXXXXXXXXXXXXXXXX A B X C D X E F X G H X I resync data
-- XXXXXXXXXXXXXXXXXXX \_______/ \_______/ \_______/ \_______/ \____
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ;____ ____ ____ ____ ____ ____
-- phy_clk |____| |____| |____| |____| |____| |____| |____|
--
-- 0 1 2 3 4 5 6
--
--
-- |<- Aligned Data ->|
-- phy_clk 180-r0,r1 540-r0,r1 sig_mtp_match_en (generated from sig_ac_even)
-- 0 XXXXXXXX XXXXXXXX '1'
-- 1 XXXXXXAB XXXXXXXX '0'
-- 2 XXXXABCD XXXXXXAB '1'
-- 3 XXABCDEF XXXXABCD '0'
-- 4 ABCDEFGH XXABCDEF '1'
-- 5 CDEFGHAB ABCDEFGH '0'
--
-- In DQS-based capture, sweeping resync_clk from 180 degrees to 360
-- does not necessarily result in a failure because the setup/hold
-- requirements are so small. The data comparison needs to fail when
-- the resync_clk is shifted more than 360 degrees. The
-- sig_mtp_match_en signal allows the sequencer to blind itself
-- training pattern matches that occur above 360 degrees.
--
--
--
--
--
-- Asserts sig_mtp_match.
--
-- Data comes in from rdata and is pushed into a two-bit wide shift register.
-- It is a critical assumption that the rdata comes back byte aligned.
--
--
--sig_mtp_match_valid
-- rdata_valid (shift-enable)
-- |
-- |
-- +-----------------------+-----------+------------------+
-- ___ | | |
-- dq(0) >---| \ | Shift Register |
-- dq(1) >---| \ +------+ +------+ +------------------+
-- dq(2) >---| )--->| D(0) |-+->| D(1) |-+->...-+->| D(c_cal_mtp_len - 1) |
-- ... | / +------+ | +------+ | | +------------------+
-- dq(n-1) >---|___/ +-----------++-...-+
-- | || +---+
-- | (==)--------> sig_mtp_match_0t ---->| |-->sig_mtp_match_1t-->sig_mtp_match
-- | || +---+
-- | +-----------++...-+
-- sig_dq_pin_ctr >-+ +------+ | +------+ | | +------------------+
-- | P(0) |-+ | P(1) |-+ ...-+->| P(c_cal_mtp_len - 1) |
-- +------+ +------+ +------------------+
--
--
--
--
signal sig_rdata_current_pin : std_logic_vector(c_cal_mtp_len - 1 downto 0);
-- A fundamental assumption here is that rdata_valid is all
-- ones or all zeros - not both.
signal sig_rdata_valid_1t : std_logic; -- rdata_valid delayed by 1 clock period.
signal sig_rdata_valid_2t : std_logic; -- rdata_valid delayed by 2 clock periods.
begin
rdata_valid_1t_proc : process (clk, rst_n)
begin
if rst_n = '0' then
sig_rdata_valid_1t <= '0';
sig_rdata_valid_2t <= '0';
elsif rising_edge(clk) then
sig_rdata_valid_2t <= sig_rdata_valid_1t;
sig_rdata_valid_1t <= rdata_valid(0);
end if;
end process;
-- MUX data into sig_rdata_current_pin shift register.
rdata_current_pin_proc: process (clk, rst_n)
begin
if rst_n = '0' then
sig_rdata_current_pin <= (others => '0');
elsif rising_edge(clk) then
-- shift old data down the shift register
sig_rdata_current_pin(sig_rdata_current_pin'high - DWIDTH_RATIO downto 0) <=
sig_rdata_current_pin(sig_rdata_current_pin'high downto DWIDTH_RATIO);
-- shift new data into the bottom of the shift register.
for i in 0 to DWIDTH_RATIO - 1 loop
sig_rdata_current_pin(sig_rdata_current_pin'high - DWIDTH_RATIO + 1 + i) <= rdata(i*MEM_IF_DWIDTH + sig_dq_pin_ctr);
end loop;
end if;
end process;
mtp_match_proc : process (clk, rst_n)
begin
if rst_n = '0' then -- * when at least c_max_read_lat clock cycles have passed
sig_mtp_match <= '0';
elsif rising_edge(clk) then
sig_mtp_match <= '0';
if sig_rdata_current_pin = c_cal_mtp then
sig_mtp_match <= '1';
end if;
end if;
end process;
poa_match_proc : process (clk, rst_n)
-- poa_match_Calibration Strategy
--
-- Ascii Waveforms:
--
-- __ __ __ __ __ __ __ __ __
-- clk __| |__| |__| |__| |__| |__| |__| |__| |__| |
--
-- ; ; ; ;
-- _________________
-- rdata_valid ________| |___________________________
--
-- ; ; ; ;
-- _____
-- poa_match_en ______________________________________| |_______________
--
-- ; ; ; ;
-- _____
-- poa_match XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
--
--
-- Notes:
-- -poa_match is only valid while poa_match_en is asserted.
--
--
--
--
--
--
begin
if rst_n = '0' then
sig_poa_match_en <= '0';
sig_poa_match <= '0';
elsif rising_edge(clk) then
sig_poa_match <= '0';
sig_poa_match_en <= '0';
if sig_rdata_valid_2t = '1' and sig_rdata_valid_1t = '0' then
sig_poa_match_en <= '1';
end if;
if DWIDTH_RATIO = 2 then
if sig_rdata_current_pin(sig_rdata_current_pin'high downto sig_rdata_current_pin'length - 6) = "111100" then
sig_poa_match <= '1';
end if;
elsif DWIDTH_RATIO = 4 then
if sig_rdata_current_pin(sig_rdata_current_pin'high downto sig_rdata_current_pin'length - 8) = "11111100" then
sig_poa_match <= '1';
end if;
else
report dgrb_report_prefix & "unsupported DWIDTH_RATIO" severity failure;
end if;
end if;
end process;
end block;
-- ------------------------------------------------------------------
-- Postamble calibration
--
-- Implements the postamble slave state machine and collates the
-- processing data from the test pattern match block.
-- ------------------------------------------------------------------
poa_block : block
-- Postamble Calibration Strategy
--
-- Ascii Waveforms:
--
-- c_read_burst_t c_read_burst_t
-- ;<------->; ;<------->;
-- ; ; ; ;
-- __ / / __
-- mem_dq[0] ___________| |_____\ \________| |___
--
-- ; ; ; ;
-- ; ; ; ;
-- _________ / / _________
-- poa_enable ______| |___\ \_| |___
-- ; ; ; ;
-- ; ; ; ;
-- __ / / ______
-- rdata[0] ___________| |______\ \_______|
-- ; ; ; ;
-- ; ; ; ;
-- ; ; ; ;
-- _ / / _
-- poa_match_en _____________| |___\ \___________| |_
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- / / _
-- poa_match ___________________\ \___________| |_
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- _ / /
-- seq_poa_lat_dec _______________| |_\ \_______________
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- / /
-- seq_poa_lat_inc ___________________\ \_______________
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
--
-- (1) (2)
--
--
-- (1) poa_enable signal is late, and the zeros on mem_dq after (1)
-- are captured.
-- (2) poa_enable signal is aligned. Zeros following (2) are not
-- captured rdata remains at '1'.
--
-- The DQS capture circuit wth the dqs enable asynchronous set.
--
--
--
-- dqs_en_async_preset ----------+
-- |
-- v
-- +---------+
-- +--|Q SET D|----------- gnd
-- | | <O---+
-- | +---------+ |
-- | |
-- | |
-- +--+---. |
-- |AND )--------+------- dqs_bus
-- delayed_dqs -----+---^
--
--
--
-- _____ _____ _____ _____
-- dqs ____| |_____| |_____| |_____| |_____XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-- ; ; ; ; ;
-- ; ; ; ;
-- _____ _____ _____ _____
-- delayed_dqs _______| |_____| |_____| |_____| |_____XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--
-- ; ; ; ; ;
-- ; ______________________________________________________________
-- dqs_en_async_ _____________________________| |_____
-- preset
-- ; ; ; ; ;
-- ; ; ; ; ;
-- _____ _____ _____
-- dqs_bus _______| |_________________| |_____| |_____XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--
-- ; ;
-- (1) (2)
--
--
-- Notes:
-- (1) The dqs_bus pulse here comes because the last value of Q
-- is '1' until the first DQS pulse clocks gnd into the FF,
-- brings low the AND gate, and disables dqs_bus. A training
-- pattern could potentially match at this point even though
-- between (1) and (2) there are no dqs_bus triggers. Data
-- is frozen on rdata while awaiting the dqs_bus pulses at
-- (2). For this reason, wait until the first match of the
-- training pattern, and continue reducing latency until it
-- TP no longer matches, then increase latency by one. In
-- this case, dqs_en_async_preset will have its latency
-- reduced by three until the training pattern is not matched,
-- then latency is increased by one.
--
--
--
--
-- Postamble calibration state
type t_poa_state is (
-- decrease poa enable latency by 1 cycle iteratively until 'correct' position found
s_poa_rewind_to_pass,
-- poa cal complete
s_poa_done
);
constant c_poa_lat_cmd_wait : natural := 10; -- Number of clock cycles to wait for lat_inc/lat_dec signal to take effect.
constant c_poa_max_lat : natural := 100; -- Maximum number of allowable latency changes.
signal sig_poa_adjust_count : integer range 0 to 2**8 - 1;
signal sig_poa_state : t_poa_state;
begin
poa_proc : process (clk, rst_n)
begin
if rst_n = '0' then
sig_poa_ack <= '0';
seq_poa_lat_dec_1x <= (others => '0');
seq_poa_lat_inc_1x <= (others => '0');
sig_poa_adjust_count <= 0;
sig_poa_state <= s_poa_rewind_to_pass;
elsif rising_edge(clk) then
sig_poa_ack <= '0';
seq_poa_lat_inc_1x <= (others => '0');
seq_poa_lat_dec_1x <= (others => '0');
if sig_dgrb_state = s_poa_cal then
case sig_poa_state is
when s_poa_rewind_to_pass =>
-- In postamble calibration
--
-- Normally, must wait for sig_dimm_driving_dq to be '1'
-- before reading, but by this point in calibration
-- rdata_valid is assumed to be set up properly. The
-- sig_poa_match_en (derived from rdata_valid) is used
-- here rather than sig_dimm_driving_dq.
if sig_poa_match_en = '1' then
if sig_poa_match = '1' then
sig_poa_state <= s_poa_done;
else
seq_poa_lat_dec_1x <= (others => '1');
end if;
sig_poa_adjust_count <= sig_poa_adjust_count + 1;
end if;
when s_poa_done =>
sig_poa_ack <= '1';
end case;
else
sig_poa_state <= s_poa_rewind_to_pass;
sig_poa_adjust_count <= 0;
end if;
assert sig_poa_adjust_count <= c_poa_max_lat
report dgrb_report_prefix & "Maximum number of postamble latency adjustments exceeded."
severity failure;
end if;
end process;
end block;
-- ------------------------------------------------------------------
-- code block for tracking signal generation
--
-- this is used for initial tracking setup (finding a reference window)
-- and periodic tracking operations (PVT compensation on rsc phase)
--
-- A slave trk state machine is described and implemented within the block
-- The mimic path is controlled within this block
-- ------------------------------------------------------------------
trk_block : block
type t_tracking_state is (
-- initialise variables out of reset
s_trk_init,
-- idle state
s_trk_idle,
-- sample data from the mimic path (build window)
s_trk_mimic_sample,
-- 'shift' mimic path phase
s_trk_next_phase,
-- calculate mimic window
s_trk_cdvw_calc,
s_trk_cdvw_wait, -- for results
-- calculate how much mimic window has moved (only entered in periodic tracking)
s_trk_cdvw_drift,
-- track rsc phase (only entered in periodic tracking)
s_trk_adjust_resync,
-- communicate command complete to the master state machine
s_trk_complete
);
signal sig_mmc_seq_done : std_logic;
signal sig_mmc_seq_done_1t : std_logic;
signal mmc_seq_value_r : std_logic;
signal sig_mmc_start : std_logic;
signal sig_trk_state : t_tracking_state;
signal sig_trk_last_state : t_tracking_state;
signal sig_rsc_drift : integer range -c_max_rsc_drift_in_phases to c_max_rsc_drift_in_phases; -- stores total change in rsc phase from first calibration
signal sig_req_rsc_shift : integer range -c_max_rsc_drift_in_phases to c_max_rsc_drift_in_phases; -- stores required shift in rsc phase instantaneously
signal sig_mimic_cdv_found : std_logic;
signal sig_mimic_cdv : integer range 0 to PLL_STEPS_PER_CYCLE; -- centre of data valid window calculated from first mimic-cycle
signal sig_mimic_delta : integer range -PLL_STEPS_PER_CYCLE to PLL_STEPS_PER_CYCLE;
signal sig_large_drift_seen : std_logic;
signal sig_remaining_samples : natural range 0 to 2**8 - 1;
begin
-- advertise the codvw phase shift
process (clk, rst_n)
variable v_length : integer;
begin
if rst_n = '0' then
codvw_trk_shift <= (others => '0');
elsif rising_edge(clk) then
if sig_mimic_cdv_found = '1' then
-- check range
v_length := codvw_trk_shift'length;
codvw_trk_shift <= std_logic_vector(to_signed(sig_rsc_drift, v_length));
else
codvw_trk_shift <= (others => '0');
end if;
end if;
end process;
-- request a mimic sample
mimic_sample_req : process (clk, rst_n)
variable seq_mmc_start_r : std_logic_vector(3 downto 0);
begin
if rst_n = '0' then
seq_mmc_start <= '0';
seq_mmc_start_r := "0000";
elsif rising_edge(clk) then
seq_mmc_start_r(3) := seq_mmc_start_r(2);
seq_mmc_start_r(2) := seq_mmc_start_r(1);
seq_mmc_start_r(1) := seq_mmc_start_r(0);
-- extend sig_mmc_start by one clock cycle
if sig_mmc_start = '1' then
seq_mmc_start <= '1';
seq_mmc_start_r(0) := '1';
elsif ( (seq_mmc_start_r(3) = '1') or (seq_mmc_start_r(2) = '1') or (seq_mmc_start_r(1) = '1') or (seq_mmc_start_r(0) = '1') ) then
seq_mmc_start <= '1';
seq_mmc_start_r(0) := '0';
else
seq_mmc_start <= '0';
end if;
end if;
end process;
-- metastability hardening of async mmc_seq_done signal
mmc_seq_req_sync : process (clk, rst_n)
variable v_mmc_seq_done_1r : std_logic;
variable v_mmc_seq_done_2r : std_logic;
variable v_mmc_seq_done_3r : std_logic;
begin
if rst_n = '0' then
sig_mmc_seq_done <= '0';
sig_mmc_seq_done_1t <= '0';
v_mmc_seq_done_1r := '0';
v_mmc_seq_done_2r := '0';
v_mmc_seq_done_3r := '0';
elsif rising_edge(clk) then
sig_mmc_seq_done_1t <= v_mmc_seq_done_3r;
sig_mmc_seq_done <= v_mmc_seq_done_2r;
mmc_seq_value_r <= mmc_seq_value;
v_mmc_seq_done_3r := v_mmc_seq_done_2r;
v_mmc_seq_done_2r := v_mmc_seq_done_1r;
v_mmc_seq_done_1r := mmc_seq_done;
end if;
end process;
-- collect mimic samples as they arrive
shift_in_mmc_seq_value : process (clk, rst_n)
begin
if rst_n = '0' then
sig_trk_cdvw_shift_in <= '0';
sig_trk_cdvw_phase <= '0';
elsif rising_edge(clk) then
sig_trk_cdvw_shift_in <= '0';
sig_trk_cdvw_phase <= '0';
if sig_mmc_seq_done_1t = '1' and sig_mmc_seq_done = '0' then
sig_trk_cdvw_shift_in <= '1';
sig_trk_cdvw_phase <= mmc_seq_value_r;
end if;
end if;
end process;
-- main tracking state machine
trk_proc : process (clk, rst_n)
begin
if rst_n = '0' then
sig_trk_state <= s_trk_init;
sig_trk_last_state <= s_trk_init;
sig_trk_result <= (others => '0');
sig_trk_err <= '0';
sig_mmc_start <= '0';
sig_trk_pll_select <= (others => '0');
sig_req_rsc_shift <= -c_max_rsc_drift_in_phases;
sig_rsc_drift <= -c_max_rsc_drift_in_phases;
sig_mimic_delta <= -PLL_STEPS_PER_CYCLE;
sig_mimic_cdv_found <= '0';
sig_mimic_cdv <= 0;
sig_large_drift_seen <= '0';
sig_trk_cdvw_calc <= '0';
sig_remaining_samples <= 0;
sig_trk_pll_start_reconfig <= '0';
sig_trk_pll_inc_dec_n <= c_pll_phs_inc;
sig_trk_ack <= '0';
elsif rising_edge(clk) then
sig_trk_pll_select <= pll_measure_clk_index;
sig_trk_pll_start_reconfig <= '0';
sig_trk_pll_inc_dec_n <= c_pll_phs_inc;
sig_large_drift_seen <= '0';
sig_trk_cdvw_calc <= '0';
sig_trk_ack <= '0';
sig_trk_err <= '0';
sig_trk_result <= (others => '0');
sig_mmc_start <= '0';
-- if no cdv found then reset tracking results
if sig_mimic_cdv_found = '0' then
sig_rsc_drift <= 0;
sig_req_rsc_shift <= 0;
sig_mimic_delta <= 0;
end if;
if sig_dgrb_state = s_track then
-- resync state machine
case sig_trk_state is
when s_trk_init =>
sig_trk_state <= s_trk_idle;
sig_mimic_cdv_found <= '0';
sig_rsc_drift <= 0;
sig_req_rsc_shift <= 0;
sig_mimic_delta <= 0;
when s_trk_idle =>
sig_remaining_samples <= PLL_STEPS_PER_CYCLE; -- ensure a 360 degrees sweep
sig_trk_state <= s_trk_mimic_sample;
when s_trk_mimic_sample =>
if sig_remaining_samples = 0 then
sig_trk_state <= s_trk_cdvw_calc;
else
if sig_trk_state /= sig_trk_last_state then
-- request a sample as soon as we arrive in this state.
-- the default value of sig_mmc_start is zero!
sig_mmc_start <= '1';
end if;
if sig_mmc_seq_done_1t = '1' and sig_mmc_seq_done = '0' then
-- a sample has been collected, go to next PLL phase
sig_remaining_samples <= sig_remaining_samples - 1;
sig_trk_state <= s_trk_next_phase;
end if;
end if;
when s_trk_next_phase =>
sig_trk_pll_start_reconfig <= '1';
sig_trk_pll_inc_dec_n <= c_pll_phs_inc;
if sig_phs_shft_start = '1' then
sig_trk_pll_start_reconfig <= '0';
end if;
if sig_phs_shft_end = '1' then
sig_trk_state <= s_trk_mimic_sample;
end if;
when s_trk_cdvw_calc =>
if sig_trk_state /= sig_trk_last_state then
-- reset variables we are interested in when we first arrive in this state
sig_trk_cdvw_calc <= '1';
report dgrb_report_prefix & "gathered mimic phase samples DGRB_MIMIC_SAMPLES: " & str(sig_cdvw_state.working_window(sig_cdvw_state.working_window'high downto sig_cdvw_state.working_window'length - PLL_STEPS_PER_CYCLE)) severity note;
else
sig_trk_state <= s_trk_cdvw_wait;
end if;
when s_trk_cdvw_wait =>
if sig_cdvw_state.status /= calculating then
if sig_cdvw_state.status = valid_result then
report dgrb_report_prefix & "mimic window successfully found." severity note;
if sig_mimic_cdv_found = '0' then -- first run of tracking operation
sig_mimic_cdv_found <= '1';
sig_mimic_cdv <= sig_cdvw_state.largest_window_centre;
sig_trk_state <= s_trk_complete;
else -- subsequent tracking operation runs
sig_mimic_delta <= sig_mimic_cdv - sig_cdvw_state.largest_window_centre;
sig_mimic_cdv <= sig_cdvw_state.largest_window_centre;
sig_trk_state <= s_trk_cdvw_drift;
end if;
else
report dgrb_report_prefix & "couldn't find a data-valid window for tracking." severity cal_fail_sev_level;
sig_trk_ack <= '1';
sig_trk_err <= '1';
sig_trk_state <= s_trk_idle;
-- set resync result code
case sig_cdvw_state.status is
when no_invalid_phases =>
sig_trk_result <= std_logic_vector(to_unsigned(C_ERR_RESYNC_NO_INVALID_PHASES, sig_trk_result'length));
when multiple_equal_windows =>
sig_trk_result <= std_logic_vector(to_unsigned(C_ERR_RESYNC_MULTIPLE_EQUAL_WINDOWS, sig_trk_result'length));
when no_valid_phases =>
sig_trk_result <= std_logic_vector(to_unsigned(C_ERR_RESYNC_NO_VALID_PHASES, sig_trk_result'length));
when others =>
sig_trk_result <= std_logic_vector(to_unsigned(C_ERR_CRITICAL, sig_trk_result'length));
end case;
end if;
end if;
when s_trk_cdvw_drift => -- calculate the drift in rsc phase
-- pipeline stage 1
if abs(sig_mimic_delta) > PLL_STEPS_PER_CYCLE/2 then
sig_large_drift_seen <= '1';
else
sig_large_drift_seen <= '0';
end if;
--pipeline stage 2
if sig_trk_state = sig_trk_last_state then
if sig_large_drift_seen = '1' then
if sig_mimic_delta < 0 then -- anti-clockwise movement
sig_req_rsc_shift <= sig_req_rsc_shift + sig_mimic_delta + PLL_STEPS_PER_CYCLE;
else -- clockwise movement
sig_req_rsc_shift <= sig_req_rsc_shift + sig_mimic_delta - PLL_STEPS_PER_CYCLE;
end if;
else
sig_req_rsc_shift <= sig_req_rsc_shift + sig_mimic_delta;
end if;
sig_trk_state <= s_trk_adjust_resync;
end if;
when s_trk_adjust_resync =>
sig_trk_pll_select <= pll_resync_clk_index;
sig_trk_pll_start_reconfig <= '1';
if sig_trk_state /= sig_trk_last_state then
if sig_req_rsc_shift < 0 then
sig_trk_pll_inc_dec_n <= c_pll_phs_inc;
sig_req_rsc_shift <= sig_req_rsc_shift + 1;
sig_rsc_drift <= sig_rsc_drift + 1;
elsif sig_req_rsc_shift > 0 then
sig_trk_pll_inc_dec_n <= c_pll_phs_dec;
sig_req_rsc_shift <= sig_req_rsc_shift - 1;
sig_rsc_drift <= sig_rsc_drift - 1;
else
sig_trk_state <= s_trk_complete;
sig_trk_pll_start_reconfig <= '0';
end if;
else
sig_trk_pll_inc_dec_n <= sig_trk_pll_inc_dec_n; -- maintain current value
end if;
if abs(sig_rsc_drift) = c_max_rsc_drift_in_phases then
report dgrb_report_prefix & " a maximum absolute change in resync_clk of " & integer'image(sig_rsc_drift) & " phases has " & LF &
" occurred (since read resynch phase calibration) during tracking" severity cal_fail_sev_level;
sig_trk_err <= '1';
sig_trk_result <= std_logic_vector(to_unsigned(C_ERR_MAX_TRK_SHFT_EXCEEDED, sig_trk_result'length));
end if;
if sig_phs_shft_start = '1' then
sig_trk_pll_start_reconfig <= '0';
end if;
if sig_phs_shft_end = '1' then
sig_trk_state <= s_trk_complete;
end if;
when s_trk_complete =>
sig_trk_ack <= '1';
end case;
sig_trk_last_state <= sig_trk_state;
else
sig_trk_state <= s_trk_idle;
sig_trk_last_state <= s_trk_idle;
end if;
end if;
end process;
rsc_drift: process (sig_rsc_drift)
begin
sig_trk_rsc_drift <= sig_rsc_drift; -- communicate tracking shift to rsc process
end process;
end block; -- tracking signals
-- ------------------------------------------------------------------
-- write-datapath (WDP) ` and on-chip-termination (OCT) signal
-- ------------------------------------------------------------------
wdp_oct : process(clk,rst_n)
begin
if rst_n = '0' then
seq_oct_value <= c_set_oct_to_rs;
dgrb_wdp_ovride <= '0';
elsif rising_edge(clk) then
if ((sig_dgrb_state = s_idle) or (EN_OCT = 0)) then
seq_oct_value <= c_set_oct_to_rs;
dgrb_wdp_ovride <= '0';
else
seq_oct_value <= c_set_oct_to_rt;
dgrb_wdp_ovride <= '1';
end if;
end if;
end process;
-- ------------------------------------------------------------------
-- handles muxing of error codes to the control block
-- ------------------------------------------------------------------
ac_handshake_proc : process(rst_n, clk)
begin
if rst_n = '0' then
dgrb_ctrl <= defaults;
elsif rising_edge(clk) then
dgrb_ctrl <= defaults;
if sig_dgrb_state = s_wait_admin and sig_dgrb_last_state = s_idle then
dgrb_ctrl.command_ack <= '1';
end if;
case sig_dgrb_state is
when s_seek_cdvw =>
dgrb_ctrl.command_err <= sig_rsc_err;
dgrb_ctrl.command_result <= sig_rsc_result;
when s_track =>
dgrb_ctrl.command_err <= sig_trk_err;
dgrb_ctrl.command_result <= sig_trk_result;
when others => -- from main state machine
dgrb_ctrl.command_err <= sig_cmd_err;
dgrb_ctrl.command_result <= sig_cmd_result;
end case;
if ctrl_dgrb_r.command = cmd_read_mtp then -- check against command because aligned with command done not command_err
dgrb_ctrl.command_err <= '0';
dgrb_ctrl.command_result <= std_logic_vector(to_unsigned(sig_cdvw_state.largest_window_size,dgrb_ctrl.command_result'length));
end if;
if sig_dgrb_state = s_idle and sig_dgrb_last_state = s_release_admin then
dgrb_ctrl.command_done <= '1';
end if;
end if;
end process;
-- ------------------------------------------------------------------
-- address/command state machine
-- process is commanded to begin reading training patterns.
--
-- implements the address/command slave state machine
-- issues read commands to the memory relative to given calibration
-- stage being implemented
-- burst length is dependent on memory type
-- ------------------------------------------------------------------
ac_block : block
-- override the calibration burst length for DDR3 device support
-- (requires BL8 / on the fly setting in MR in admin block)
function set_read_bl ( memtype: in string ) return natural is
begin
if memtype = "DDR3" then
return 8;
elsif memtype = "DDR" or memtype = "DDR2" then
return c_cal_burst_len;
else
report dgrb_report_prefix & " a calibration burst length choice has not been set for memory type " & memtype severity failure;
end if;
return 0;
end function;
-- parameterisation of the read algorithm by burst length
constant c_poa_addr_width : natural := 6;
constant c_cal_read_burst_len : natural := set_read_bl(MEM_IF_MEMTYPE);
constant c_bursts_per_btp : natural := c_cal_mtp_len / c_cal_read_burst_len;
constant c_read_burst_t : natural := c_cal_read_burst_len / DWIDTH_RATIO;
constant c_max_rdata_valid_lat : natural := 50*(c_cal_read_burst_len / DWIDTH_RATIO); -- maximum latency that rdata_valid can ever have with respect to doing_rd
constant c_rdv_ones_rd_clks : natural := (c_max_rdata_valid_lat + c_read_burst_t) / c_read_burst_t; -- number of cycles to read ones for before a pulse of zeros
-- array of burst training pattern addresses
-- here the MTP is used in this addressing
subtype t_btp_addr is natural range 0 to 2 ** MEM_IF_ADDR_WIDTH - 1;
type t_btp_addr_array is array (0 to c_bursts_per_btp - 1) of t_btp_addr;
-- default values
function defaults return t_btp_addr_array is
variable v_btp_array : t_btp_addr_array;
begin
for i in 0 to c_bursts_per_btp - 1 loop
v_btp_array(i) := 0;
end loop;
return v_btp_array;
end function;
-- load btp array addresses
-- Note: this scales to burst lengths of 2, 4 and 8
-- the settings here are specific to the choice of training pattern and need updating if the pattern changes
function set_btp_addr (mtp_almt : natural ) return t_btp_addr_array is
variable v_addr_array : t_btp_addr_array;
begin
for i in 0 to 8/c_cal_read_burst_len - 1 loop
-- set addresses for xF5 data
v_addr_array((c_bursts_per_btp - 1) - i) := MEM_IF_CAL_BASE_COL + c_cal_ofs_xF5 + i*c_cal_read_burst_len;
-- set addresses for x30 data (based on mtp alignment)
if mtp_almt = 0 then
v_addr_array((c_bursts_per_btp - 1) - (8/c_cal_read_burst_len + i)) := MEM_IF_CAL_BASE_COL + c_cal_ofs_x30_almt_0 + i*c_cal_read_burst_len;
else
v_addr_array((c_bursts_per_btp - 1) - (8/c_cal_read_burst_len + i)) := MEM_IF_CAL_BASE_COL + c_cal_ofs_x30_almt_1 + i*c_cal_read_burst_len;
end if;
end loop;
return v_addr_array;
end function;
function find_poa_cycle_period return natural is
-- Returns the period over which the postamble reads
-- repeat in c_read_burst_t units.
variable v_num_bursts : natural;
begin
v_num_bursts := 2 ** c_poa_addr_width / c_read_burst_t;
if v_num_bursts * c_read_burst_t < 2**c_poa_addr_width then
v_num_bursts := v_num_bursts + 1;
end if;
v_num_bursts := v_num_bursts + c_bursts_per_btp + 1;
return v_num_bursts;
end function;
function get_poa_burst_addr(burst_count : in natural; mtp_almt : in natural) return t_btp_addr is
variable v_addr : t_btp_addr;
begin
if burst_count = 0 then
if mtp_almt = 0 then
v_addr := c_cal_ofs_x30_almt_1;
elsif mtp_almt = 1 then
v_addr := c_cal_ofs_x30_almt_0;
else
report "Unsupported mtp_almt " & natural'image(mtp_almt) severity failure;
end if;
-- address gets incremented by four if in burst-length four.
v_addr := v_addr + (8 - c_cal_read_burst_len);
else
v_addr := c_cal_ofs_zeros;
end if;
return v_addr;
end function;
signal btp_addr_array : t_btp_addr_array; -- burst training pattern addresses
signal sig_addr_cmd_state : t_ac_state;
signal sig_addr_cmd_last_state : t_ac_state;
signal sig_doing_rd_count : integer range 0 to c_read_burst_t - 1;
signal sig_count : integer range 0 to 2**8 - 1;
signal sig_setup : integer range c_max_read_lat downto 0;
signal sig_burst_count : integer range 0 to c_read_burst_t;
begin
-- handles counts for when to begin burst-reads (sig_burst_count)
-- sets sig_dimm_driving_dq
-- sets dgrb_ac_access_req
dimm_driving_dq_proc : process(rst_n, clk)
begin
if rst_n = '0' then
sig_dimm_driving_dq <= '1';
sig_setup <= c_max_read_lat;
sig_burst_count <= 0;
dgrb_ac_access_req <= '0';
sig_ac_even <= '0';
elsif rising_edge(clk) then
sig_dimm_driving_dq <= '0';
if sig_addr_cmd_state /= s_ac_idle and sig_addr_cmd_state /= s_ac_relax then
dgrb_ac_access_req <= '1';
else
dgrb_ac_access_req <= '0';
end if;
case sig_addr_cmd_state is
when s_ac_read_mtp | s_ac_read_rdv | s_ac_read_wd_lat | s_ac_read_poa_mtp =>
sig_ac_even <= not sig_ac_even;
-- a counter that keeps track of when we are ready
-- to issue a burst read. Issue burst read eigvery
-- time we are at zero.
if sig_burst_count = 0 then
sig_burst_count <= c_read_burst_t - 1;
else
sig_burst_count <= sig_burst_count - 1;
end if;
if dgrb_ac_access_gnt /= '1' then
sig_setup <= c_max_read_lat;
else
-- primes reads
-- signal that dimms are driving dq pins after
-- at least c_max_read_lat clock cycles have passed.
--
if sig_setup = 0 then
sig_dimm_driving_dq <= '1';
elsif dgrb_ac_access_gnt = '1' then
sig_setup <= sig_setup - 1;
end if;
end if;
when s_ac_relax =>
sig_dimm_driving_dq <= '1';
sig_burst_count <= 0;
sig_ac_even <= '0';
when others =>
sig_burst_count <= 0;
sig_ac_even <= '0';
end case;
end if;
end process;
ac_proc : process(rst_n, clk)
begin
if rst_n = '0' then
sig_count <= 0;
sig_addr_cmd_state <= s_ac_idle;
sig_addr_cmd_last_state <= s_ac_idle;
sig_doing_rd_count <= 0;
sig_addr_cmd <= reset(c_seq_addr_cmd_config);
btp_addr_array <= defaults;
sig_doing_rd <= (others => '0');
elsif rising_edge(clk) then
assert c_cal_mtp_len mod c_cal_read_burst_len = 0 report dgrb_report_prefix & "burst-training pattern length must be a multiple of burst-length." severity failure;
assert MEM_IF_CAL_BANK < 2**MEM_IF_BANKADDR_WIDTH report dgrb_report_prefix & "MEM_IF_CAL_BANK out of range." severity failure;
assert MEM_IF_CAL_BASE_COL < 2**MEM_IF_ADDR_WIDTH - 1 - C_CAL_DATA_LEN report dgrb_report_prefix & "MEM_IF_CAL_BASE_COL out of range." severity failure;
sig_addr_cmd <= deselect(c_seq_addr_cmd_config, sig_addr_cmd);
if sig_ac_req /= sig_addr_cmd_state and sig_addr_cmd_state /= s_ac_idle then
-- and dgrb_ac_access_gnt = '1'
sig_addr_cmd_state <= s_ac_relax;
else
sig_addr_cmd_state <= sig_ac_req;
end if;
if sig_doing_rd_count /= 0 then
sig_doing_rd <= (others => '1');
sig_doing_rd_count <= sig_doing_rd_count - 1;
else
sig_doing_rd <= (others => '0');
end if;
case sig_addr_cmd_state is
when s_ac_idle =>
sig_addr_cmd <= defaults(c_seq_addr_cmd_config);
when s_ac_relax =>
-- waits at least c_max_read_lat before returning to s_ac_idle state
if sig_addr_cmd_state /= sig_addr_cmd_last_state then
sig_count <= c_max_read_lat;
else
if sig_count = 0 then
sig_addr_cmd_state <= s_ac_idle;
else
sig_count <= sig_count - 1;
end if;
end if;
when s_ac_read_mtp =>
-- reads 'more'-training pattern
-- issue read commands for proper addresses
-- set burst training pattern (mtp in this case) addresses
btp_addr_array <= set_btp_addr(current_mtp_almt);
if sig_addr_cmd_state /= sig_addr_cmd_last_state then
sig_count <= c_bursts_per_btp - 1; -- counts number of bursts in a training pattern
else
sig_doing_rd <= (others => '1');
-- issue a read command every c_read_burst_t clock cycles
if sig_burst_count = 0 then
-- decide which read command to issue
for i in 0 to c_bursts_per_btp - 1 loop
if sig_count = i then
sig_addr_cmd <= read(c_seq_addr_cmd_config, -- configuration
sig_addr_cmd, -- previous value
MEM_IF_CAL_BANK, -- bank
btp_addr_array(i), -- column address
2**current_cs, -- rank
c_cal_read_burst_len, -- burst length
false);
end if;
end loop;
-- Set next value of count
if sig_count = 0 then
sig_count <= c_bursts_per_btp - 1;
else
sig_count <= sig_count - 1;
end if;
end if;
end if;
when s_ac_read_poa_mtp =>
-- Postamble rdata/rdata_valid Activity:
--
--
-- (0) (1) (2)
-- ; ; ; ;
-- _________ __ ____________ _____________ _______ _________
-- \ / \ / \ \ \ / \ /
-- (a) rdata[0] 00000000 X 11 X 0000000000 / / 0000000000 X MTP X 00000000
-- _________/ \__/ \____________\ \____________/ \_______/ \_________
-- ; ; ; ;
-- ; ; ; ;
-- _________ / / _________
-- rdata_valid ____| |_____________\ \_____________| |__________
--
-- ;<- (b) ->;<------------(c)------------>; ;
-- ; ; ; ;
--
--
-- This block must issue reads and drive doing_rd to place the above pattern on
-- the rdata and rdata_valid ports. MTP will most likely come back corrupted but
-- the postamble block (poa_block) will make the necessary adjustments to improve
-- matters.
--
-- (a) Read zeros followed by two ones. The two will be at the end of a burst.
-- Assert rdata_valid only during the burst containing the ones.
-- (b) c_read_burst_t clock cycles.
-- (c) Must be greater than but NOT equal to maximum postamble latency clock
-- cycles. Another way: c_min = (max_poa_lat + 1) phy clock cycles. This
-- must also be long enough to allow the postamble block to respond to a
-- the seq_poa_lat_dec_1x signal, but this requirement is less stringent
-- than the first so that we can ignore it.
--
-- The find_poa_cycle_period function should return (b+c)/c_read_burst_t
-- rounded up to the next largest integer.
--
--
-- set burst training pattern (mtp in this case) addresses
btp_addr_array <= set_btp_addr(current_mtp_almt);
-- issue read commands for proper addresses
if sig_addr_cmd_state /= sig_addr_cmd_last_state then
sig_count <= find_poa_cycle_period - 1; -- length of read patter in bursts.
elsif dgrb_ac_access_gnt = '1' then
-- only begin operation once dgrb_ac_access_gnt has been issued
-- otherwise rdata_valid may be asserted when rdasta is not
-- valid.
--
-- *** WARNING: BE SAFE. DON'T LET THIS HAPPEN TO YOU: ***
--
-- ; ; ; ; ; ;
-- ; _______ ; ; _______ ; ; _______
-- XXXXX / \ XXXXXXXXX / \ XXXXXXXXX / \ XXXXXXXXX
-- addr/cmd XXXXXX READ XXXXXXXXXXX READ XXXXXXXXXXX READ XXXXXXXXXXX
-- XXXXX \_______/ XXXXXXXXX \_______/ XXXXXXXXX \_______/ XXXXXXXXX
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- ; ; ; ; ; ; _______
-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX / \
-- rdata XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX MTP X
-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX \_______/
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- _________ _________ _________
-- doing_rd ____| |_________| |_________| |__________
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- __________________________________________________
-- ac_accesss_gnt ______________|
-- ; ; ; ; ; ;
-- ; ; ; ; ; ;
-- _________ _________
-- rdata_valid __________________________________| |_________| |
-- ; ; ; ; ; ;
--
-- (0) (1) (2)
--
--
-- Cmmand and doing_rd issued at (0). The doing_rd signal enters the
-- rdata_valid pipe here so that it will return on rdata_valid with the
-- expected latency (at this point in calibration, rdata_valid and adv_rd_lat
-- should be properly calibrated). Unlike doing_rd, since ac_access_gnt is not
-- asserted the READ command at (0) is never actually issued. This results
-- in the situation at (2) where rdata is undefined yet rdata_valid indicates
-- valid data. The moral of this story is to wait for ac_access_gnt = '1'
-- before issuing commands when it is important that rdata_valid be accurate.
--
--
--
--
if sig_burst_count = 0 then
sig_addr_cmd <= read(c_seq_addr_cmd_config, -- configuration
sig_addr_cmd, -- previous value
MEM_IF_CAL_BANK, -- bank
get_poa_burst_addr(sig_count, current_mtp_almt),-- column address
2**current_cs, -- rank
c_cal_read_burst_len, -- burst length
false);
-- Set doing_rd
if sig_count = 0 then
sig_doing_rd <= (others => '1');
sig_doing_rd_count <= c_read_burst_t - 1; -- Extend doing_rd pulse by this many phy_clk cycles.
end if;
-- Set next value of count
if sig_count = 0 then
sig_count <= find_poa_cycle_period - 1; -- read for one period then relax (no read) for same time period
else
sig_count <= sig_count - 1;
end if;
end if;
end if;
when s_ac_read_rdv =>
assert c_max_rdata_valid_lat mod c_read_burst_t = 0 report dgrb_report_prefix & "c_max_rdata_valid_lat must be a multiple of c_read_burst_t." severity failure;
if sig_addr_cmd_state /= sig_addr_cmd_last_state then
sig_count <= c_rdv_ones_rd_clks - 1;
else
if sig_burst_count = 0 then
if sig_count = 0 then
-- expecting to read ZEROS
sig_addr_cmd <= read(c_seq_addr_cmd_config, -- configuration
sig_addr_cmd, -- previous valid
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + C_CAL_OFS_ZEROS, -- column
2**current_cs, -- rank
c_cal_read_burst_len, -- burst length
false);
else
-- expecting to read ONES
sig_addr_cmd <= read(c_seq_addr_cmd_config, -- configuration
sig_addr_cmd, -- previous value
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + C_CAL_OFS_ONES, -- column address
2**current_cs, -- rank
c_cal_read_burst_len, -- op length
false);
end if;
if sig_count = 0 then
sig_count <= c_rdv_ones_rd_clks - 1;
else
sig_count <= sig_count - 1;
end if;
end if;
if (sig_count = c_rdv_ones_rd_clks - 1 and sig_burst_count = 1) or
(sig_count = 0 and c_read_burst_t = 1) then
-- the last burst read- that was issued was supposed to read only zeros
-- a burst read command will be issued on the next clock cycle
--
-- A long (>= maximim rdata_valid latency) series of burst reads are
-- issued for ONES.
-- Into this stream a single burst read for ZEROs is issued. After
-- the ZERO read command is issued, rdata_valid needs to come back
-- high one clock cycle before the next read command (reading ONES
-- again) is issued. Since the rdata_valid is just a delayed
-- version of doing_rd, doing_rd needs to exhibit the same behaviour.
--
-- for FR (burst length 4): require that doing_rd high 1 clock cycle after cs_n is low
-- ____ ____ ____ ____ ____ ____ ____ ____ ____
-- clk ____| |____| |____| |____| |____| |____| |____| |____| |____|
--
-- ___ _______ _______ _______ _______
-- \ XXXXXXXXX / \ XXXXXXXXX / \ XXXXXXXXX / \ XXXXXXXXX / \ XXXX
-- addr XXXXXXXXXXX ONES XXXXXXXXXXX ONES XXXXXXXXXXX ZEROS XXXXXXXXXXX ONES XXXXX--> Repeat
-- ___/ XXXXXXXXX \_______/ XXXXXXXXX \_______/ XXXXXXXXX \_______/ XXXXXXXXX \_______/ XXXX
--
-- _________ _________ _________ _________ ____
-- cs_n ____| |_________| |_________| |_________| |_________|
--
-- _________
-- doing_rd ________________________________________________________________| |______________
--
--
-- for HR: require that doing_rd high in the same clock cycle as cs_n is low
--
sig_doing_rd(MEM_IF_DQS_WIDTH*(DWIDTH_RATIO/2-1)) <= '1';
end if;
end if;
when s_ac_read_wd_lat =>
-- continuously issues reads on the memory locations
-- containing write latency addr=[2*c_cal_burst_len - (3*c_cal_burst_len - 1)]
if sig_addr_cmd_state /= sig_addr_cmd_last_state then
-- no initialization required here. Must still wait
-- a clock cycle before beginning operations so that
-- we are properly synchronized with
-- dimm_driving_dq_proc.
else
if sig_burst_count = 0 then
if sig_dimm_driving_dq = '1' then
sig_doing_rd <= (others => '1');
end if;
sig_addr_cmd <= read(c_seq_addr_cmd_config, -- configuration
sig_addr_cmd, -- previous value
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_wd_lat, -- column
2**current_cs, -- rank
c_cal_read_burst_len,
false);
end if;
end if;
when others =>
report dgrb_report_prefix & "undefined state in addr_cmd_proc" severity error;
sig_addr_cmd_state <= s_ac_idle;
end case;
-- mask odt signal
for i in 0 to (DWIDTH_RATIO/2)-1 loop
sig_addr_cmd(i).odt <= odt_settings(current_cs).read;
end loop;
sig_addr_cmd_last_state <= sig_addr_cmd_state;
end if;
end process;
end block ac_block;
end architecture struct;
--
-- -----------------------------------------------------------------------------
-- Abstract : data gatherer (write bias) [dgwb] block for the non-levelling
-- AFI PHY sequencer
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The address and command package (alt_mem_phy_addr_cmd_pkg) is used to combine DRAM address
-- and command signals in one record and unify the functions operating on this record.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_dgwb is
generic (
-- Physical IF width definitions
MEM_IF_DQS_WIDTH : natural;
MEM_IF_DQ_PER_DQS : natural;
MEM_IF_DWIDTH : natural;
MEM_IF_DM_WIDTH : natural;
DWIDTH_RATIO : natural;
MEM_IF_ADDR_WIDTH : natural;
MEM_IF_BANKADDR_WIDTH : natural;
MEM_IF_NUM_RANKS : natural; -- The sequencer outputs memory control signals of width num_ranks
MEM_IF_MEMTYPE : string;
ADV_LAT_WIDTH : natural;
MEM_IF_CAL_BANK : natural; -- Bank to which calibration data is written
-- Base column address to which calibration data is written.
-- Memory at MEM_IF_CAL_BASE_COL - MEM_IF_CAL_BASE_COL + C_CAL_DATA_LEN - 1
-- is assumed to contain the proper data.
MEM_IF_CAL_BASE_COL : natural
);
port (
-- CLK Reset
clk : in std_logic;
rst_n : in std_logic;
parameterisation_rec : in t_algm_paramaterisation;
-- Control interface :
dgwb_ctrl : out t_ctrl_stat;
ctrl_dgwb : in t_ctrl_command;
-- iRAM 'push' interface :
dgwb_iram : out t_iram_push;
iram_push_done : in std_logic;
-- Admin block req/gnt interface.
dgwb_ac_access_req : out std_logic;
dgwb_ac_access_gnt : in std_logic;
-- WDP interface
dgwb_dqs_burst : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_DQS_WIDTH - 1 downto 0);
dgwb_wdata_valid : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_DQS_WIDTH - 1 downto 0);
dgwb_wdata : out std_logic_vector( DWIDTH_RATIO * MEM_IF_DWIDTH - 1 downto 0);
dgwb_dm : out std_logic_vector( DWIDTH_RATIO * MEM_IF_DM_WIDTH - 1 downto 0);
dgwb_dqs : out std_logic_vector( DWIDTH_RATIO - 1 downto 0);
dgwb_wdp_ovride : out std_logic;
-- addr/cmd output for write commands.
dgwb_ac : out t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
bypassed_rdata : in std_logic_vector(MEM_IF_DWIDTH-1 downto 0);
-- odt settings per chip select
odt_settings : in t_odt_array(0 to MEM_IF_NUM_RANKS-1)
);
end entity;
library work;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
--
architecture rtl of ddr_ctrl_ip_phy_alt_mem_phy_dgwb is
type t_dgwb_state is (
s_idle,
s_wait_admin,
s_write_btp, -- Writes bit-training pattern
s_write_ones, -- Writes ones
s_write_zeros, -- Writes zeros
s_write_mtp, -- Write more training patterns (requires read to check allignment)
s_write_01_pairs, -- Writes 01 pairs
s_write_1100_step,-- Write step function (half zeros, half ones)
s_write_0011_step,-- Write reversed step function (half ones, half zeros)
s_write_wlat, -- Writes the write latency into a memory address.
s_release_admin
);
constant c_seq_addr_cmd_config : t_addr_cmd_config_rec := set_config_rec(MEM_IF_ADDR_WIDTH, MEM_IF_BANKADDR_WIDTH, MEM_IF_NUM_RANKS, DWIDTH_RATIO, MEM_IF_MEMTYPE);
-- a prefix for all report signals to identify phy and sequencer block
--
constant dgwb_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (dgwb) : ";
function dqs_pattern return std_logic_vector is
variable dqs : std_logic_vector( DWIDTH_RATIO - 1 downto 0);
begin
if DWIDTH_RATIO = 2 then
dqs := "10";
elsif DWIDTH_RATIO = 4 then
dqs := "1100";
else
report dgwb_report_prefix & "unsupported DWIDTH_RATIO in function dqs_pattern." severity failure;
end if;
return dqs;
end;
signal sig_addr_cmd : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
signal sig_dgwb_state : t_dgwb_state;
signal sig_dgwb_last_state : t_dgwb_state;
signal access_complete : std_logic;
signal generate_wdata : std_logic; -- for s_write_wlat only
-- current chip select being processed
signal current_cs : natural range 0 to MEM_IF_NUM_RANKS-1;
begin
dgwb_ac <= sig_addr_cmd;
-- Set IRAM interface to defaults
dgwb_iram <= defaults;
-- Master state machine. Generates state transitions.
master_dgwb_state_block : if True generate
signal sig_ctrl_dgwb : t_ctrl_command; -- registers ctrl_dgwb input.
begin
-- generate the current_cs signal to track which cs accessed by PHY at any instance
current_cs_proc : process (clk, rst_n)
begin
if rst_n = '0' then
current_cs <= 0;
elsif rising_edge(clk) then
if sig_ctrl_dgwb.command_req = '1' then
current_cs <= sig_ctrl_dgwb.command_op.current_cs;
end if;
end if;
end process;
master_dgwb_state_proc : process(rst_n, clk)
begin
if rst_n = '0' then
sig_dgwb_state <= s_idle;
sig_dgwb_last_state <= s_idle;
sig_ctrl_dgwb <= defaults;
elsif rising_edge(clk) then
case sig_dgwb_state is
when s_idle =>
if sig_ctrl_dgwb.command_req = '1' then
if (curr_active_block(sig_ctrl_dgwb.command) = dgwb) then
sig_dgwb_state <= s_wait_admin;
end if;
end if;
when s_wait_admin =>
case sig_ctrl_dgwb.command is
when cmd_write_btp => sig_dgwb_state <= s_write_btp;
when cmd_write_mtp => sig_dgwb_state <= s_write_mtp;
when cmd_was => sig_dgwb_state <= s_write_wlat;
when others =>
report dgwb_report_prefix & "unknown command" severity error;
end case;
if dgwb_ac_access_gnt /= '1' then
sig_dgwb_state <= s_wait_admin;
end if;
when s_write_btp =>
sig_dgwb_state <= s_write_zeros;
when s_write_zeros =>
if sig_dgwb_state = sig_dgwb_last_state and access_complete = '1' then
sig_dgwb_state <= s_write_ones;
end if;
when s_write_ones =>
if sig_dgwb_state = sig_dgwb_last_state and access_complete = '1' then
sig_dgwb_state <= s_release_admin;
end if;
when s_write_mtp =>
sig_dgwb_state <= s_write_01_pairs;
when s_write_01_pairs =>
if sig_dgwb_state = sig_dgwb_last_state and access_complete = '1' then
sig_dgwb_state <= s_write_1100_step;
end if;
when s_write_1100_step =>
if sig_dgwb_state = sig_dgwb_last_state and access_complete = '1' then
sig_dgwb_state <= s_write_0011_step;
end if;
when s_write_0011_step =>
if sig_dgwb_state = sig_dgwb_last_state and access_complete = '1' then
sig_dgwb_state <= s_release_admin;
end if;
when s_write_wlat =>
if sig_dgwb_state = sig_dgwb_last_state and access_complete = '1' then
sig_dgwb_state <= s_release_admin;
end if;
when s_release_admin =>
if dgwb_ac_access_gnt = '0' then
sig_dgwb_state <= s_idle;
end if;
when others =>
report dgwb_report_prefix & "undefined state in addr_cmd_proc" severity error;
sig_dgwb_state <= s_idle;
end case;
sig_dgwb_last_state <= sig_dgwb_state;
sig_ctrl_dgwb <= ctrl_dgwb;
end if;
end process;
end generate;
-- Generates writes
ac_write_block : if True generate
constant C_BURST_T : natural := C_CAL_BURST_LEN / DWIDTH_RATIO; -- Number of phy-clock cycles per burst
constant C_MAX_WLAT : natural := 2**ADV_LAT_WIDTH-1; -- Maximum latency in clock cycles
constant C_MAX_COUNT : natural := C_MAX_WLAT + C_BURST_T + 4*12 - 1; -- up to 12 consecutive writes at 4 cycle intervals
-- The following function sets the width over which
-- write latency should be repeated on the dq bus
-- the default value is MEM_IF_DQ_PER_DQS
function set_wlat_dq_rep_width return natural is
begin
for i in 1 to MEM_IF_DWIDTH/MEM_IF_DQ_PER_DQS loop
if (i*MEM_IF_DQ_PER_DQS) >= ADV_LAT_WIDTH then
return i*MEM_IF_DQ_PER_DQS;
end if;
end loop;
report dgwb_report_prefix & "the specified maximum write latency cannot be fully represented in the given number of DQ pins" & LF &
"** NOTE: This may cause overflow when setting ctl_wlat signal" severity warning;
return MEM_IF_DQ_PER_DQS;
end function;
constant C_WLAT_DQ_REP_WIDTH : natural := set_wlat_dq_rep_width;
signal sig_count : natural range 0 to 2**8 - 1;
begin
ac_write_proc : process(rst_n, clk)
begin
if rst_n = '0' then
dgwb_wdp_ovride <= '0';
dgwb_dqs <= (others => '0');
dgwb_dm <= (others => '1');
dgwb_wdata <= (others => '0');
dgwb_dqs_burst <= (others => '0');
dgwb_wdata_valid <= (others => '0');
generate_wdata <= '0'; -- for s_write_wlat only
sig_count <= 0;
sig_addr_cmd <= int_pup_reset(c_seq_addr_cmd_config);
access_complete <= '0';
elsif rising_edge(clk) then
dgwb_wdp_ovride <= '0';
dgwb_dqs <= (others => '0');
dgwb_dm <= (others => '1');
dgwb_wdata <= (others => '0');
dgwb_dqs_burst <= (others => '0');
dgwb_wdata_valid <= (others => '0');
sig_addr_cmd <= deselect(c_seq_addr_cmd_config, sig_addr_cmd);
access_complete <= '0';
generate_wdata <= '0'; -- for s_write_wlat only
case sig_dgwb_state is
when s_idle =>
sig_addr_cmd <= defaults(c_seq_addr_cmd_config);
-- require ones in locations:
-- 1. c_cal_ofs_ones (8 locations)
-- 2. 2nd half of location c_cal_ofs_xF5 (4 locations)
when s_write_ones =>
dgwb_wdp_ovride <= '1';
dgwb_dqs <= dqs_pattern;
dgwb_dm <= (others => '0');
dgwb_dqs_burst <= (others => '1');
-- Write ONES to DQ pins
dgwb_wdata <= (others => '1');
dgwb_wdata_valid <= (others => '1');
-- Issue write command
if sig_dgwb_state /= sig_dgwb_last_state then
sig_count <= 0;
else
-- ensure safe intervals for DDRx memory writes (min 4 mem clk cycles between writes for BC4 DDR3)
if sig_count = 0 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_ones, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
elsif sig_count = 4 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_ones + 4, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
elsif sig_count = 8 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_xF5 + 4, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
end if;
sig_count <= sig_count + 1;
end if;
if sig_count = C_MAX_COUNT - 1 then
access_complete <= '1';
end if;
-- require zeros in locations:
-- 1. c_cal_ofs_zeros (8 locations)
-- 2. 1st half of c_cal_ofs_x30_almt_0 (4 locations)
-- 3. 1st half of c_cal_ofs_x30_almt_1 (4 locations)
when s_write_zeros =>
dgwb_wdp_ovride <= '1';
dgwb_dqs <= dqs_pattern;
dgwb_dm <= (others => '0');
dgwb_dqs_burst <= (others => '1');
-- Write ZEROS to DQ pins
dgwb_wdata <= (others => '0');
dgwb_wdata_valid <= (others => '1');
-- Issue write command
if sig_dgwb_state /= sig_dgwb_last_state then
sig_count <= 0;
else
if sig_count = 0 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_zeros, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
elsif sig_count = 4 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_zeros + 4, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
elsif sig_count = 8 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_x30_almt_0, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
elsif sig_count = 12 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_x30_almt_1, -- address
2**current_cs, -- rank
4, -- burst length (fixed at BC4)
false); -- auto-precharge
end if;
sig_count <= sig_count + 1;
end if;
if sig_count = C_MAX_COUNT - 1 then
access_complete <= '1';
end if;
-- require 0101 pattern in locations:
-- 1. 1st half of location c_cal_ofs_xF5 (4 locations)
when s_write_01_pairs =>
dgwb_wdp_ovride <= '1';
dgwb_dqs <= dqs_pattern;
dgwb_dm <= (others => '0');
dgwb_dqs_burst <= (others => '1');
dgwb_wdata_valid <= (others => '1');
-- Issue write command
if sig_dgwb_state /= sig_dgwb_last_state then
sig_count <= 0;
else
if sig_count = 0 then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_xF5, -- address
2**current_cs, -- rank
4, -- burst length
false); -- auto-precharge
end if;
sig_count <= sig_count + 1;
end if;
if sig_count = C_MAX_COUNT - 1 then
access_complete <= '1';
end if;
-- Write 01 to pairs of memory addresses
for i in 0 to dgwb_wdata'length / MEM_IF_DWIDTH - 1 loop
if i mod 2 = 0 then
dgwb_wdata((i+1)*MEM_IF_DWIDTH - 1 downto i*MEM_IF_DWIDTH) <= (others => '1');
else
dgwb_wdata((i+1)*MEM_IF_DWIDTH - 1 downto i*MEM_IF_DWIDTH) <= (others => '0');
end if;
end loop;
-- require pattern "0011" (or "1100") in locations:
-- 1. 2nd half of c_cal_ofs_x30_almt_0 (4 locations)
when s_write_0011_step =>
dgwb_wdp_ovride <= '1';
dgwb_dqs <= dqs_pattern;
dgwb_dm <= (others => '0');
dgwb_dqs_burst <= (others => '1');
dgwb_wdata_valid <= (others => '1');
-- Issue write command
if sig_dgwb_state /= sig_dgwb_last_state then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_x30_almt_0 + 4, -- address
2**current_cs, -- rank
4, -- burst length
false); -- auto-precharge
sig_count <= 0;
else
sig_count <= sig_count + 1;
end if;
if sig_count = C_MAX_COUNT - 1 then
access_complete <= '1';
end if;
-- Write 0011 step to column addresses. Note that
-- it cannot be determined which at this point. The
-- strategy is to write both alignments and see which
-- one is correct later on.
-- this calculation has 2 parts:
-- a) sig_count mod C_BURST_T is a timewise iterator of repetition of the pattern
-- b) i represents the temporal iterator of the pattern
-- it is required to sum a and b and switch the pattern between 0 and 1 every 2 locations in each dimension
-- Note: the same formulae is used below for the 1100 pattern
for i in 0 to dgwb_wdata'length / MEM_IF_DWIDTH - 1 loop
if ((sig_count mod C_BURST_T) + (i/2)) mod 2 = 0 then
dgwb_wdata((i+1)*MEM_IF_DWIDTH - 1 downto i*MEM_IF_DWIDTH) <= (others => '0');
else
dgwb_wdata((i+1)*MEM_IF_DWIDTH - 1 downto i*MEM_IF_DWIDTH) <= (others => '1');
end if;
end loop;
-- require pattern "1100" (or "0011") in locations:
-- 1. 2nd half of c_cal_ofs_x30_almt_1 (4 locations)
when s_write_1100_step =>
dgwb_wdp_ovride <= '1';
dgwb_dqs <= dqs_pattern;
dgwb_dm <= (others => '0');
dgwb_dqs_burst <= (others => '1');
dgwb_wdata_valid <= (others => '1');
-- Issue write command
if sig_dgwb_state /= sig_dgwb_last_state then
sig_addr_cmd <= write(c_seq_addr_cmd_config,
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_x30_almt_1 + 4, -- address
2**current_cs, -- rank
4, -- burst length
false); -- auto-precharge
sig_count <= 0;
else
sig_count <= sig_count + 1;
end if;
if sig_count = C_MAX_COUNT - 1 then
access_complete <= '1';
end if;
-- Write 1100 step to column addresses. Note that
-- it cannot be determined which at this point. The
-- strategy is to write both alignments and see which
-- one is correct later on.
for i in 0 to dgwb_wdata'length / MEM_IF_DWIDTH - 1 loop
if ((sig_count mod C_BURST_T) + (i/2)) mod 2 = 0 then
dgwb_wdata((i+1)*MEM_IF_DWIDTH - 1 downto i*MEM_IF_DWIDTH) <= (others => '1');
else
dgwb_wdata((i+1)*MEM_IF_DWIDTH - 1 downto i*MEM_IF_DWIDTH) <= (others => '0');
end if;
end loop;
when s_write_wlat =>
-- Effect:
-- *Writes the memory latency to an array formed
-- from memory addr=[2*C_CAL_BURST_LEN-(3*C_CAL_BURST_LEN-1)].
-- The write latency is written to pairs of addresses
-- across the given range.
--
-- Example
-- C_CAL_BURST_LEN = 4
-- addr 8 - 9 [WLAT] size = 2*MEM_IF_DWIDTH bits
-- addr 10 - 11 [WLAT] size = 2*MEM_IF_DWIDTH bits
--
dgwb_wdp_ovride <= '1';
dgwb_dqs <= dqs_pattern;
dgwb_dm <= (others => '0');
dgwb_wdata <= (others => '0');
dgwb_dqs_burst <= (others => '1');
dgwb_wdata_valid <= (others => '1');
if sig_dgwb_state /= sig_dgwb_last_state then
sig_addr_cmd <= write(c_seq_addr_cmd_config, -- A/C configuration
sig_addr_cmd,
MEM_IF_CAL_BANK, -- bank
MEM_IF_CAL_BASE_COL + c_cal_ofs_wd_lat, -- address
2**current_cs, -- rank
8, -- burst length (8 for DDR3 and 4 for DDR/DDR2)
false); -- auto-precharge
sig_count <= 0;
else
-- hold wdata_valid and wdata 2 clock cycles
-- 1 - because ac signal registered at top level of sequencer
-- 2 - because want time to dqs_burst edge which occurs 1 cycle earlier
-- than wdata_valid in an AFI compliant controller
generate_wdata <= '1';
end if;
if generate_wdata = '1' then
for i in 0 to dgwb_wdata'length/C_WLAT_DQ_REP_WIDTH - 1 loop
dgwb_wdata((i+1)*C_WLAT_DQ_REP_WIDTH - 1 downto i*C_WLAT_DQ_REP_WIDTH) <= std_logic_vector(to_unsigned(sig_count, C_WLAT_DQ_REP_WIDTH));
end loop;
-- delay by 1 clock cycle to account for 1 cycle discrepancy
-- between dqs_burst and wdata_valid
if sig_count = C_MAX_COUNT then
access_complete <= '1';
end if;
sig_count <= sig_count + 1;
end if;
when others =>
null;
end case;
-- mask odt signal
for i in 0 to (DWIDTH_RATIO/2)-1 loop
sig_addr_cmd(i).odt <= odt_settings(current_cs).write;
end loop;
end if;
end process;
end generate;
-- Handles handshaking for access to address/command
ac_handshake_proc : process(rst_n, clk)
begin
if rst_n = '0' then
dgwb_ctrl <= defaults;
dgwb_ac_access_req <= '0';
elsif rising_edge(clk) then
dgwb_ctrl <= defaults;
dgwb_ac_access_req <= '0';
if sig_dgwb_state /= s_idle and sig_dgwb_state /= s_release_admin then
dgwb_ac_access_req <= '1';
elsif sig_dgwb_state = s_idle or sig_dgwb_state = s_release_admin then
dgwb_ac_access_req <= '0';
else
report dgwb_report_prefix & "unexpected state in ac_handshake_proc so haven't requested access to address/command." severity warning;
end if;
if sig_dgwb_state = s_wait_admin and sig_dgwb_last_state = s_idle then
dgwb_ctrl.command_ack <= '1';
end if;
if sig_dgwb_state = s_idle and sig_dgwb_last_state = s_release_admin then
dgwb_ctrl.command_done <= '1';
end if;
end if;
end process;
end architecture rtl;
--
-- -----------------------------------------------------------------------------
-- Abstract : ctrl block for the non-levelling AFI PHY sequencer
-- This block is the central control unit for the sequencer. The method
-- of control is to issue commands (prefixed cmd_) to each of the other
-- sequencer blocks to execute. Each command corresponds to a stage of
-- the AFI PHY calibaration stage, and in turn each state represents a
-- command or a supplimentary flow control operation. In addition to
-- controlling the sequencer this block also checks for time out
-- conditions which occur when a different system block is faulty.
-- -----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The iram address package (alt_mem_phy_iram_addr_pkg) is used to define the base addresses used
-- for iram writes during calibration
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_ctrl is
generic (
FAMILYGROUP_ID : natural;
MEM_IF_DLL_LOCK_COUNT : natural;
MEM_IF_MEMTYPE : string;
DWIDTH_RATIO : natural;
IRAM_ADDRESSING : t_base_hdr_addresses;
MEM_IF_CLK_PS : natural;
TRACKING_INTERVAL_IN_MS : natural;
MEM_IF_NUM_RANKS : natural;
MEM_IF_DQS_WIDTH : natural;
GENERATE_ADDITIONAL_DBG_RTL : natural;
SIM_TIME_REDUCTIONS : natural; -- if 0 null, if 1 skip rrp, if 2 rrp for 1 dqs group and 1 cs
ACK_SEVERITY : severity_level
);
port (
-- clk / reset
clk : in std_logic;
rst_n : in std_logic;
-- calibration status and redo request
ctl_init_success : out std_logic;
ctl_init_fail : out std_logic;
ctl_recalibrate_req : in std_logic; -- acts as a synchronous reset
-- status signals from iram
iram_status : in t_iram_stat;
iram_push_done : in std_logic;
-- standard control signal to all blocks
ctrl_op_rec : out t_ctrl_command;
-- standardised response from all system blocks
admin_ctrl : in t_ctrl_stat;
dgrb_ctrl : in t_ctrl_stat;
dgwb_ctrl : in t_ctrl_stat;
-- mmi to ctrl interface
mmi_ctrl : in t_mmi_ctrl;
ctrl_mmi : out t_ctrl_mmi;
-- byte lane select
ctl_cal_byte_lanes : in std_logic_vector(MEM_IF_NUM_RANKS * MEM_IF_DQS_WIDTH - 1 downto 0);
-- signals to control the ac_nt setting
dgrb_ctrl_ac_nt_good : in std_logic;
int_ac_nt : out std_logic_vector(((DWIDTH_RATIO+2)/4) - 1 downto 0); -- width of 1 for DWIDTH_RATIO =2,4 and 2 for DWIDTH_RATIO = 8
-- the following signals are reserved for future use
ctrl_iram_push : out t_ctrl_iram
);
end entity;
library work;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_ctrl is
-- a prefix for all report signals to identify phy and sequencer block
--
constant ctrl_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (ctrl) : ";
-- decoder to find the relevant disable bit (from mmi registers) for a given state
function find_dis_bit
(
state : t_master_sm_state;
mmi_ctrl : t_mmi_ctrl
) return std_logic is
variable v_dis : std_logic;
begin
case state is
when s_phy_initialise => v_dis := mmi_ctrl.hl_css.phy_initialise_dis;
when s_init_dram |
s_prog_cal_mr => v_dis := mmi_ctrl.hl_css.init_dram_dis;
when s_write_ihi => v_dis := mmi_ctrl.hl_css.write_ihi_dis;
when s_cal => v_dis := mmi_ctrl.hl_css.cal_dis;
when s_write_btp => v_dis := mmi_ctrl.hl_css.write_btp_dis;
when s_write_mtp => v_dis := mmi_ctrl.hl_css.write_mtp_dis;
when s_read_mtp => v_dis := mmi_ctrl.hl_css.read_mtp_dis;
when s_rrp_reset => v_dis := mmi_ctrl.hl_css.rrp_reset_dis;
when s_rrp_sweep => v_dis := mmi_ctrl.hl_css.rrp_sweep_dis;
when s_rrp_seek => v_dis := mmi_ctrl.hl_css.rrp_seek_dis;
when s_rdv => v_dis := mmi_ctrl.hl_css.rdv_dis;
when s_poa => v_dis := mmi_ctrl.hl_css.poa_dis;
when s_was => v_dis := mmi_ctrl.hl_css.was_dis;
when s_adv_rd_lat => v_dis := mmi_ctrl.hl_css.adv_rd_lat_dis;
when s_adv_wr_lat => v_dis := mmi_ctrl.hl_css.adv_wr_lat_dis;
when s_prep_customer_mr_setup => v_dis := mmi_ctrl.hl_css.prep_customer_mr_setup_dis;
when s_tracking_setup |
s_tracking => v_dis := mmi_ctrl.hl_css.tracking_dis;
when others => v_dis := '1'; -- default change stage
end case;
return v_dis;
end function;
-- decoder to find the relevant command for a given state
function find_cmd
(
state : t_master_sm_state
) return t_ctrl_cmd_id is
begin
case state is
when s_phy_initialise => return cmd_phy_initialise;
when s_init_dram => return cmd_init_dram;
when s_prog_cal_mr => return cmd_prog_cal_mr;
when s_write_ihi => return cmd_write_ihi;
when s_cal => return cmd_idle;
when s_write_btp => return cmd_write_btp;
when s_write_mtp => return cmd_write_mtp;
when s_read_mtp => return cmd_read_mtp;
when s_rrp_reset => return cmd_rrp_reset;
when s_rrp_sweep => return cmd_rrp_sweep;
when s_rrp_seek => return cmd_rrp_seek;
when s_rdv => return cmd_rdv;
when s_poa => return cmd_poa;
when s_was => return cmd_was;
when s_adv_rd_lat => return cmd_prep_adv_rd_lat;
when s_adv_wr_lat => return cmd_prep_adv_wr_lat;
when s_prep_customer_mr_setup => return cmd_prep_customer_mr_setup;
when s_tracking_setup |
s_tracking => return cmd_tr_due;
when others => return cmd_idle;
end case;
end function;
function mcs_rw_state -- returns true for multiple cs read/write states
(
state : t_master_sm_state
) return boolean is
begin
case state is
when s_write_btp | s_write_mtp | s_rrp_sweep =>
return true;
when s_reset | s_phy_initialise | s_init_dram | s_prog_cal_mr | s_write_ihi | s_cal |
s_read_mtp | s_rrp_reset | s_rrp_seek | s_rdv | s_poa |
s_was | s_adv_rd_lat | s_adv_wr_lat | s_prep_customer_mr_setup |
s_tracking_setup | s_tracking | s_operational | s_non_operational =>
return false;
when others =>
--
return false;
end case;
end function;
-- timing parameters
constant c_done_timeout_count : natural := 32768;
constant c_ack_timeout_count : natural := 1000;
constant c_ticks_per_ms : natural := 1000000000/(MEM_IF_CLK_PS*(DWIDTH_RATIO/2));
constant c_ticks_per_10us : natural := 10000000 /(MEM_IF_CLK_PS*(DWIDTH_RATIO/2));
-- local copy of calibration fail/success signals
signal int_ctl_init_fail : std_logic;
signal int_ctl_init_success : std_logic;
-- state machine (master for sequencer)
signal state : t_master_sm_state;
signal last_state : t_master_sm_state;
-- flow control signals for state machine
signal dis_state : std_logic; -- disable state
signal hold_state : std_logic; -- hold in state for 1 clock cycle
signal master_ctrl_op_rec : t_ctrl_command; -- master command record to all sequencer blocks
signal master_ctrl_iram_push : t_ctrl_iram; -- record indicating control details for pushes
signal dll_lock_counter : natural range MEM_IF_DLL_LOCK_COUNT - 1 downto 0; -- to wait for dll to lock
signal iram_init_complete : std_logic;
-- timeout signals to check if a block has 'hung'
signal timeout_counter : natural range c_done_timeout_count - 1 downto 0;
signal timeout_counter_stop : std_logic;
signal timeout_counter_enable : std_logic;
signal timeout_counter_clear : std_logic;
signal cmd_req_asserted : std_logic; -- a command has been issued
signal flag_ack_timeout : std_logic; -- req -> ack timed out
signal flag_done_timeout : std_logic; -- reg -> done timed out
signal waiting_for_ack : std_logic; -- command issued
signal cmd_ack_seen : std_logic; -- command completed
signal curr_ctrl : t_ctrl_stat; -- response for current active block
signal curr_cmd : t_ctrl_cmd_id;
-- store state information based on issued command
signal int_ctrl_prev_stage : t_ctrl_cmd_id;
signal int_ctrl_current_stage : t_ctrl_cmd_id;
-- multiple chip select counter
signal cs_counter : natural range 0 to MEM_IF_NUM_RANKS - 1;
signal reissue_cmd_req : std_logic; -- reissue command request for multiple cs
signal cal_cs_enabled : std_logic_vector(MEM_IF_NUM_RANKS - 1 downto 0);
-- signals to check the ac_nt setting
signal ac_nt_almts_checked : natural range 0 to DWIDTH_RATIO/2-1;
signal ac_nt : std_logic_vector(((DWIDTH_RATIO+2)/4) - 1 downto 0);
-- track the mtp alignment setting
signal mtp_almts_checked : natural range 0 to 2;
signal mtp_correct_almt : natural range 0 to 1;
signal mtp_no_valid_almt : std_logic;
signal mtp_both_valid_almt : std_logic;
signal mtp_err : std_logic;
-- tracking timing
signal milisecond_tick_gen_count : natural range 0 to c_ticks_per_ms -1 := c_ticks_per_ms -1;
signal tracking_ms_counter : natural range 0 to 255;
signal tracking_update_due : std_logic;
begin -- architecture struct
-------------------------------------------------------------------------------
-- check if chip selects are enabled
-- this only effects reactive stages (i,e, those requiring memory reads)
-------------------------------------------------------------------------------
process(ctl_cal_byte_lanes)
variable v_cs_enabled : std_logic;
begin
for i in 0 to MEM_IF_NUM_RANKS - 1 loop
-- check if any bytes enabled
v_cs_enabled := '0';
for j in 0 to MEM_IF_DQS_WIDTH - 1 loop
v_cs_enabled := v_cs_enabled or ctl_cal_byte_lanes(i*MEM_IF_DQS_WIDTH + j);
end loop;
-- if any byte enabled set cs as enabled else not
cal_cs_enabled(i) <= v_cs_enabled;
-- sanity checking:
if i = 0 and v_cs_enabled = '0' then
report ctrl_report_prefix & " disabling of chip select 0 is unsupported by the sequencer," & LF &
"-> if this is your intention then please remap CS pins such that CS 0 is not disabled" severity failure;
end if;
end loop;
end process;
-- -----------------------------------------------------------------------------
-- dll lock counter
-- -----------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
dll_lock_counter <= MEM_IF_DLL_LOCK_COUNT -1;
elsif rising_edge(clk) then
if ctl_recalibrate_req = '1' then
dll_lock_counter <= MEM_IF_DLL_LOCK_COUNT -1;
elsif dll_lock_counter /= 0 then
dll_lock_counter <= dll_lock_counter - 1;
end if;
end if;
end process;
-- -----------------------------------------------------------------------------
-- timeout counter : this counter is used to determine if an ack, or done has
-- not been received within the expected number of clock cycles of a req being
-- asserted.
-- -----------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
timeout_counter <= c_done_timeout_count - 1;
elsif rising_edge(clk) then
if timeout_counter_clear = '1' then
timeout_counter <= c_done_timeout_count - 1;
elsif timeout_counter_enable = '1' and state /= s_init_dram then
if timeout_counter /= 0 then
timeout_counter <= timeout_counter - 1;
end if;
end if;
end if;
end process;
-- -----------------------------------------------------------------------------
-- register current ctrl signal based on current command
-- -----------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
curr_ctrl <= defaults;
curr_cmd <= cmd_idle;
elsif rising_edge(clk) then
case curr_active_block(curr_cmd) is
when admin => curr_ctrl <= admin_ctrl;
when dgrb => curr_ctrl <= dgrb_ctrl;
when dgwb => curr_ctrl <= dgwb_ctrl;
when others => curr_ctrl <= defaults;
end case;
curr_cmd <= master_ctrl_op_rec.command;
end if;
end process;
-- -----------------------------------------------------------------------------
-- generation of cmd_ack_seen
-- -----------------------------------------------------------------------------
process (curr_ctrl)
begin
cmd_ack_seen <= curr_ctrl.command_ack;
end process;
-------------------------------------------------------------------------------
-- generation of waiting_for_ack flag (to determine whether ack has timed out)
-------------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
waiting_for_ack <= '0';
elsif rising_edge(clk) then
if cmd_req_asserted = '1' then
waiting_for_ack <= '1';
elsif cmd_ack_seen = '1' then
waiting_for_ack <= '0';
end if;
end if;
end process;
-- -----------------------------------------------------------------------------
-- generation of timeout flags
-- -----------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
flag_ack_timeout <= '0';
flag_done_timeout <= '0';
elsif rising_edge(clk) then
if mmi_ctrl.calibration_start = '1' or ctl_recalibrate_req = '1' then
flag_ack_timeout <= '0';
elsif timeout_counter = 0 and waiting_for_ack = '1' then
flag_ack_timeout <= '1';
end if;
if mmi_ctrl.calibration_start = '1' or ctl_recalibrate_req = '1' then
flag_done_timeout <= '0';
elsif timeout_counter = 0 and
state /= s_rrp_sweep and -- rrp can take enough cycles to overflow counter so don't timeout
state /= s_init_dram and -- init_dram takes about 200 us, so don't timeout
timeout_counter_clear /= '1' then -- check if currently clearing the timeout (i.e. command_done asserted for s_init_dram or s_rrp_sweep)
flag_done_timeout <= '1';
end if;
end if;
end process;
-- generation of timeout_counter_stop
timeout_counter_stop <= curr_ctrl.command_done;
-- -----------------------------------------------------------------------------
-- generation of timeout_counter_enable and timeout_counter_clear
-- -----------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
timeout_counter_enable <= '0';
timeout_counter_clear <= '0';
elsif rising_edge(clk) then
if cmd_req_asserted = '1' then
timeout_counter_enable <= '1';
timeout_counter_clear <= '0';
elsif timeout_counter_stop = '1'
or state = s_operational
or state = s_non_operational
or state = s_reset then
timeout_counter_enable <= '0';
timeout_counter_clear <= '1';
end if;
end if;
end process;
-------------------------------------------------------------------------------
-- assignment to ctrl_mmi record
-------------------------------------------------------------------------------
process (clk, rst_n)
variable v_ctrl_mmi : t_ctrl_mmi;
begin
if rst_n = '0' then
v_ctrl_mmi := defaults;
ctrl_mmi <= defaults;
int_ctrl_prev_stage <= cmd_idle;
int_ctrl_current_stage <= cmd_idle;
elsif rising_edge(clk) then
ctrl_mmi <= v_ctrl_mmi;
v_ctrl_mmi.ctrl_calibration_success := '0';
v_ctrl_mmi.ctrl_calibration_fail := '0';
if (curr_ctrl.command_ack = '1') then
case state is
when s_init_dram => v_ctrl_mmi.ctrl_cal_stage_ack_seen.init_dram := '1';
when s_write_btp => v_ctrl_mmi.ctrl_cal_stage_ack_seen.write_btp := '1';
when s_write_mtp => v_ctrl_mmi.ctrl_cal_stage_ack_seen.write_mtp := '1';
when s_read_mtp => v_ctrl_mmi.ctrl_cal_stage_ack_seen.read_mtp := '1';
when s_rrp_reset => v_ctrl_mmi.ctrl_cal_stage_ack_seen.rrp_reset := '1';
when s_rrp_sweep => v_ctrl_mmi.ctrl_cal_stage_ack_seen.rrp_sweep := '1';
when s_rrp_seek => v_ctrl_mmi.ctrl_cal_stage_ack_seen.rrp_seek := '1';
when s_rdv => v_ctrl_mmi.ctrl_cal_stage_ack_seen.rdv := '1';
when s_poa => v_ctrl_mmi.ctrl_cal_stage_ack_seen.poa := '1';
when s_was => v_ctrl_mmi.ctrl_cal_stage_ack_seen.was := '1';
when s_adv_rd_lat => v_ctrl_mmi.ctrl_cal_stage_ack_seen.adv_rd_lat := '1';
when s_adv_wr_lat => v_ctrl_mmi.ctrl_cal_stage_ack_seen.adv_wr_lat := '1';
when s_prep_customer_mr_setup => v_ctrl_mmi.ctrl_cal_stage_ack_seen.prep_customer_mr_setup := '1';
when s_tracking_setup |
s_tracking => v_ctrl_mmi.ctrl_cal_stage_ack_seen.tracking_setup := '1';
when others => null;
end case;
end if;
-- special 'ack' (actually finished) triggers for phy_initialise, writing iram header info and s_cal
if state = s_phy_initialise then
if iram_status.init_done = '1' and dll_lock_counter = 0 then
v_ctrl_mmi.ctrl_cal_stage_ack_seen.phy_initialise := '1';
end if;
end if;
if state = s_write_ihi then
if iram_push_done = '1' then
v_ctrl_mmi.ctrl_cal_stage_ack_seen.write_ihi := '1';
end if;
end if;
if state = s_cal and find_dis_bit(state, mmi_ctrl) = '0' then -- if cal state and calibration not disabled acknowledge
v_ctrl_mmi.ctrl_cal_stage_ack_seen.cal := '1';
end if;
if state = s_operational then
v_ctrl_mmi.ctrl_calibration_success := '1';
end if;
if state = s_non_operational then
v_ctrl_mmi.ctrl_calibration_fail := '1';
end if;
if state /= s_non_operational then
v_ctrl_mmi.ctrl_current_active_block := master_ctrl_iram_push.active_block;
v_ctrl_mmi.ctrl_current_stage := master_ctrl_op_rec.command;
else
v_ctrl_mmi.ctrl_current_active_block := v_ctrl_mmi.ctrl_current_active_block;
v_ctrl_mmi.ctrl_current_stage := v_ctrl_mmi.ctrl_current_stage;
end if;
int_ctrl_prev_stage <= int_ctrl_current_stage;
int_ctrl_current_stage <= v_ctrl_mmi.ctrl_current_stage;
if int_ctrl_prev_stage /= int_ctrl_current_stage then
v_ctrl_mmi.ctrl_current_stage_done := '0';
else
if curr_ctrl.command_done = '1' then
v_ctrl_mmi.ctrl_current_stage_done := '1';
end if;
end if;
v_ctrl_mmi.master_state_r := last_state;
if mmi_ctrl.calibration_start = '1' or ctl_recalibrate_req = '1' then
v_ctrl_mmi := defaults;
ctrl_mmi <= defaults;
end if;
-- assert error codes here
if curr_ctrl.command_err = '1' then
v_ctrl_mmi.ctrl_err_code := curr_ctrl.command_result;
elsif flag_ack_timeout = '1' then
v_ctrl_mmi.ctrl_err_code := std_logic_vector(to_unsigned(c_err_ctrl_ack_timeout, v_ctrl_mmi.ctrl_err_code'length));
elsif flag_done_timeout = '1' then
v_ctrl_mmi.ctrl_err_code := std_logic_vector(to_unsigned(c_err_ctrl_done_timeout, v_ctrl_mmi.ctrl_err_code'length));
elsif mtp_err = '1' then
if mtp_no_valid_almt = '1' then
v_ctrl_mmi.ctrl_err_code := std_logic_vector(to_unsigned(C_ERR_READ_MTP_NO_VALID_ALMT, v_ctrl_mmi.ctrl_err_code'length));
elsif mtp_both_valid_almt = '1' then
v_ctrl_mmi.ctrl_err_code := std_logic_vector(to_unsigned(C_ERR_READ_MTP_BOTH_ALMT_PASS, v_ctrl_mmi.ctrl_err_code'length));
end if;
end if;
end if;
end process;
-- check if iram finished init
process(iram_status)
begin
if GENERATE_ADDITIONAL_DBG_RTL = 0 then
iram_init_complete <= '1';
else
iram_init_complete <= iram_status.init_done;
end if;
end process;
-- -----------------------------------------------------------------------------
-- master state machine
-- (this controls the operation of the entire sequencer)
-- the states are summarised as follows:
-- s_reset
-- s_phy_initialise - wait for dll lock and init done flag from iram
-- s_init_dram, -- dram initialisation - reset sequence
-- s_prog_cal_mr, -- dram initialisation - programming mode registers (once per chip select)
-- s_write_ihi - write header information in iRAM
-- s_cal - check if calibration to be executed
-- s_write_btp - write burst training pattern
-- s_write_mtp - write more training pattern
-- s_rrp_reset - read resync phase setup - reset initial conditions
-- s_rrp_sweep - read resync phase setup - sweep phases per chip select
-- s_read_mtp - read training patterns to find correct alignment for 1100 burst
-- (this is a special case of s_rrp_seek with no resych phase setting)
-- s_rrp_seek - read resync phase setup - seek correct alignment
-- s_rdv - read data valid setup
-- s_poa - calibrate the postamble
-- s_was - write datapath setup (ac to write data timing)
-- s_adv_rd_lat - advertise read latency
-- s_adv_wr_lat - advertise write latency
-- s_tracking_setup - perform tracking (1st pass to setup mimic window)
-- s_prep_customer_mr_setup - apply user mode register settings (in admin block)
-- s_tracking - perform tracking (subsequent passes in user mode)
-- s_operational - calibration successful and in user mode
-- s_non_operational - calibration unsuccessful and in user mode
-- -----------------------------------------------------------------------------
process(clk, rst_n)
variable v_seen_ack : boolean;
variable v_dis : std_logic; -- disable bit
begin
if rst_n = '0' then
state <= s_reset;
last_state <= s_reset;
int_ctl_init_success <= '0';
int_ctl_init_fail <= '0';
v_seen_ack := false;
hold_state <= '0';
cs_counter <= 0;
mtp_almts_checked <= 0;
ac_nt <= (others => '1');
ac_nt_almts_checked <= 0;
reissue_cmd_req <= '0';
dis_state <= '0';
elsif rising_edge(clk) then
last_state <= state;
-- check if state_tx required
if curr_ctrl.command_ack = '1' then
v_seen_ack := true;
end if;
-- find disable bit for current state (do once to avoid exit mid-state)
if state /= last_state then
dis_state <= find_dis_bit(state, mmi_ctrl);
end if;
-- Set special conditions:
if state = s_reset or
state = s_operational or
state = s_non_operational then
dis_state <= '1';
end if;
-- override to ensure execution of next state logic
if (state = s_cal) then
dis_state <= '1';
end if;
-- if header writing in iram check finished
if (state = s_write_ihi) then
if iram_push_done = '1' or mmi_ctrl.hl_css.write_ihi_dis = '1' then
dis_state <= '1';
else
dis_state <= '0';
end if;
end if;
-- Special condition for initialisation
if (state = s_phy_initialise) then
if ((dll_lock_counter = 0) and (iram_init_complete = '1')) or
(mmi_ctrl.hl_css.phy_initialise_dis = '1') then
dis_state <= '1';
else
dis_state <= '0';
end if;
end if;
if dis_state = '1' then
v_seen_ack := false;
elsif curr_ctrl.command_done = '1' then
if v_seen_ack = false then
report ctrl_report_prefix & "have not seen ack but have seen command done from " & t_ctrl_active_block'image(curr_active_block(master_ctrl_op_rec.command)) & "_block in state " & t_master_sm_state'image(state) severity warning;
end if;
v_seen_ack := false;
end if;
-- default do not reissue command request
reissue_cmd_req <= '0';
if (hold_state = '1') then
hold_state <= '0';
else
if ((dis_state = '1') or
(curr_ctrl.command_done = '1') or
((cal_cs_enabled(cs_counter) = '0') and (mcs_rw_state(state) = True))) then -- current chip select is disabled and read/write
hold_state <= '1';
-- Only reset the below if making state change
int_ctl_init_success <= '0';
int_ctl_init_fail <= '0';
-- default chip select counter gets reset to zero
cs_counter <= 0;
case state is
when s_reset => state <= s_phy_initialise;
ac_nt <= (others => '1');
mtp_almts_checked <= 0;
ac_nt_almts_checked <= 0;
when s_phy_initialise => state <= s_init_dram;
when s_init_dram => state <= s_prog_cal_mr;
when s_prog_cal_mr => if cs_counter = MEM_IF_NUM_RANKS - 1 then
-- if no debug interface don't write iram header
if GENERATE_ADDITIONAL_DBG_RTL = 1 then
state <= s_write_ihi;
else
state <= s_cal;
end if;
else
cs_counter <= cs_counter + 1;
reissue_cmd_req <= '1';
end if;
when s_write_ihi => state <= s_cal;
when s_cal => if mmi_ctrl.hl_css.cal_dis = '0' then
state <= s_write_btp;
else
state <= s_tracking_setup;
end if;
-- always enter s_cal before calibration so reset some variables here
mtp_almts_checked <= 0;
ac_nt_almts_checked <= 0;
when s_write_btp => if cs_counter = MEM_IF_NUM_RANKS-1 or
SIM_TIME_REDUCTIONS = 2 then
state <= s_write_mtp;
else
cs_counter <= cs_counter + 1;
-- only reissue command if current chip select enabled
if cal_cs_enabled(cs_counter + 1) = '1' then
reissue_cmd_req <= '1';
end if;
end if;
when s_write_mtp => if cs_counter = MEM_IF_NUM_RANKS - 1 or
SIM_TIME_REDUCTIONS = 2 then
if SIM_TIME_REDUCTIONS = 1 then
state <= s_rdv;
else
state <= s_rrp_reset;
end if;
else
cs_counter <= cs_counter + 1;
-- only reissue command if current chip select enabled
if cal_cs_enabled(cs_counter + 1) = '1' then
reissue_cmd_req <= '1';
end if;
end if;
when s_rrp_reset => state <= s_rrp_sweep;
when s_rrp_sweep => if cs_counter = MEM_IF_NUM_RANKS - 1 or
mtp_almts_checked /= 2 or
SIM_TIME_REDUCTIONS = 2 then
if mtp_almts_checked /= 2 then
state <= s_read_mtp;
else
state <= s_rrp_seek;
end if;
else
cs_counter <= cs_counter + 1;
-- only reissue command if current chip select enabled
if cal_cs_enabled(cs_counter + 1) = '1' then
reissue_cmd_req <= '1';
end if;
end if;
when s_read_mtp => if mtp_almts_checked /= 2 then
mtp_almts_checked <= mtp_almts_checked + 1;
end if;
state <= s_rrp_reset;
when s_rrp_seek => state <= s_rdv;
when s_rdv => state <= s_was;
when s_was => state <= s_adv_rd_lat;
when s_adv_rd_lat => state <= s_adv_wr_lat;
when s_adv_wr_lat => if dgrb_ctrl_ac_nt_good = '1' then
state <= s_poa;
else
if ac_nt_almts_checked = (DWIDTH_RATIO/2 - 1) then
state <= s_non_operational;
else
-- switch alignment and restart calibration
ac_nt <= std_logic_vector(unsigned(ac_nt) + 1);
ac_nt_almts_checked <= ac_nt_almts_checked + 1;
if SIM_TIME_REDUCTIONS = 1 then
state <= s_rdv;
else
state <= s_rrp_reset;
end if;
mtp_almts_checked <= 0;
end if;
end if;
when s_poa => state <= s_tracking_setup;
when s_tracking_setup => state <= s_prep_customer_mr_setup;
when s_prep_customer_mr_setup => if cs_counter = MEM_IF_NUM_RANKS - 1 then -- s_prep_customer_mr_setup is always performed over all cs
state <= s_operational;
else
cs_counter <= cs_counter + 1;
reissue_cmd_req <= '1';
end if;
when s_tracking => state <= s_operational;
int_ctl_init_success <= int_ctl_init_success;
int_ctl_init_fail <= int_ctl_init_fail;
when s_operational => int_ctl_init_success <= '1';
int_ctl_init_fail <= '0';
hold_state <= '0';
if tracking_update_due = '1' and mmi_ctrl.hl_css.tracking_dis = '0' then
state <= s_tracking;
hold_state <= '1';
end if;
when s_non_operational => int_ctl_init_success <= '0';
int_ctl_init_fail <= '1';
hold_state <= '0';
if last_state /= s_non_operational then -- print a warning on entering this state
report ctrl_report_prefix & "memory calibration has failed (output from ctrl block)" severity WARNING;
end if;
when others => state <= t_master_sm_state'succ(state);
end case;
end if;
end if;
if flag_done_timeout = '1' -- no done signal from current active block
or flag_ack_timeout = '1' -- or no ack signal from current active block
or curr_ctrl.command_err = '1' -- or an error from current active block
or mtp_err = '1' then -- or an error due to mtp alignment
state <= s_non_operational;
end if;
if mmi_ctrl.calibration_start = '1' then -- restart calibration process
state <= s_cal;
end if;
if ctl_recalibrate_req = '1' then -- restart all incl. initialisation
state <= s_reset;
end if;
end if;
end process;
-- generate output calibration fail/success signals
process(clk, rst_n)
begin
if rst_n = '0' then
ctl_init_fail <= '0';
ctl_init_success <= '0';
elsif rising_edge(clk) then
ctl_init_fail <= int_ctl_init_fail;
ctl_init_success <= int_ctl_init_success;
end if;
end process;
-- assign ac_nt to the output int_ac_nt
process(ac_nt)
begin
int_ac_nt <= ac_nt;
end process;
-- ------------------------------------------------------------------------------
-- find correct mtp_almt from returned data
-- ------------------------------------------------------------------------------
mtp_almt: block
signal dvw_size_a0 : natural range 0 to 255; -- maximum size of command result
signal dvw_size_a1 : natural range 0 to 255;
begin
process (clk, rst_n)
variable v_dvw_a0_small : boolean;
variable v_dvw_a1_small : boolean;
begin
if rst_n = '0' then
mtp_correct_almt <= 0;
dvw_size_a0 <= 0;
dvw_size_a1 <= 0;
mtp_no_valid_almt <= '0';
mtp_both_valid_almt <= '0';
mtp_err <= '0';
elsif rising_edge(clk) then
-- update the dvw sizes
if state = s_read_mtp then
if curr_ctrl.command_done = '1' then
if mtp_almts_checked = 0 then
dvw_size_a0 <= to_integer(unsigned(curr_ctrl.command_result));
else
dvw_size_a1 <= to_integer(unsigned(curr_ctrl.command_result));
end if;
end if;
end if;
-- check dvw size and set mtp almt
if dvw_size_a0 < dvw_size_a1 then
mtp_correct_almt <= 1;
else
mtp_correct_almt <= 0;
end if;
-- error conditions
if mtp_almts_checked = 2 and GENERATE_ADDITIONAL_DBG_RTL = 1 then -- if finished alignment checking (and GENERATE_ADDITIONAL_DBG_RTL set)
-- perform size checks once per dvw
if dvw_size_a0 < 3 then
v_dvw_a0_small := true;
else
v_dvw_a0_small := false;
end if;
if dvw_size_a1 < 3 then
v_dvw_a1_small := true;
else
v_dvw_a1_small := false;
end if;
if v_dvw_a0_small = true and v_dvw_a1_small = true then
mtp_no_valid_almt <= '1';
mtp_err <= '1';
end if;
if v_dvw_a0_small = false and v_dvw_a1_small = false then
mtp_both_valid_almt <= '1';
mtp_err <= '1';
end if;
else
mtp_no_valid_almt <= '0';
mtp_both_valid_almt <= '0';
mtp_err <= '0';
end if;
end if;
end process;
end block;
-- ------------------------------------------------------------------------------
-- process to generate command outputs, based on state, last_state and mmi_ctrl.
-- asynchronously
-- ------------------------------------------------------------------------------
process (state, last_state, mmi_ctrl, reissue_cmd_req, cs_counter, mtp_almts_checked, mtp_correct_almt)
begin
master_ctrl_op_rec <= defaults;
master_ctrl_iram_push <= defaults;
case state is
-- special condition states
when s_reset | s_phy_initialise | s_cal =>
null;
when s_write_ihi =>
if mmi_ctrl.hl_css.write_ihi_dis = '0' then
master_ctrl_op_rec.command <= find_cmd(state);
if state /= last_state then
master_ctrl_op_rec.command_req <= '1';
end if;
end if;
when s_operational | s_non_operational =>
master_ctrl_op_rec.command <= find_cmd(state);
when others => -- default condition for most states
if find_dis_bit(state, mmi_ctrl) = '0' then
master_ctrl_op_rec.command <= find_cmd(state);
if state /= last_state or reissue_cmd_req = '1' then
master_ctrl_op_rec.command_req <= '1';
end if;
else
if state = last_state then -- safe state exit if state disabled mid-calibration
master_ctrl_op_rec.command <= find_cmd(state);
end if;
end if;
end case;
-- for multiple chip select commands assign operand to cs_counter
master_ctrl_op_rec.command_op <= defaults;
master_ctrl_op_rec.command_op.current_cs <= cs_counter;
if state = s_rrp_sweep or state = s_read_mtp or state = s_poa then
if mtp_almts_checked /= 2 or SIM_TIME_REDUCTIONS = 2 then
master_ctrl_op_rec.command_op.single_bit <= '1';
end if;
if mtp_almts_checked /= 2 then
master_ctrl_op_rec.command_op.mtp_almt <= mtp_almts_checked;
else
master_ctrl_op_rec.command_op.mtp_almt <= mtp_correct_almt;
end if;
end if;
-- set write mode and packing mode for iram
if GENERATE_ADDITIONAL_DBG_RTL = 1 then
case state is
when s_rrp_sweep =>
master_ctrl_iram_push.write_mode <= overwrite_ram;
master_ctrl_iram_push.packing_mode <= dq_bitwise;
when s_rrp_seek |
s_read_mtp =>
master_ctrl_iram_push.write_mode <= overwrite_ram;
master_ctrl_iram_push.packing_mode <= dq_wordwise;
when others =>
null;
end case;
end if;
-- set current active block
master_ctrl_iram_push.active_block <= curr_active_block(find_cmd(state));
end process;
-- some concurc_read_burst_trent assignments to outputs
process (master_ctrl_iram_push, master_ctrl_op_rec)
begin
ctrl_iram_push <= master_ctrl_iram_push;
ctrl_op_rec <= master_ctrl_op_rec;
cmd_req_asserted <= master_ctrl_op_rec.command_req;
end process;
-- -----------------------------------------------------------------------------
-- tracking interval counter
-- -----------------------------------------------------------------------------
process(clk, rst_n)
begin
if rst_n = '0' then
milisecond_tick_gen_count <= c_ticks_per_ms -1;
tracking_ms_counter <= 0;
tracking_update_due <= '0';
elsif rising_edge(clk) then
if state = s_operational and last_state/= s_operational then
if mmi_ctrl.tracking_orvd_to_10ms = '1' then
milisecond_tick_gen_count <= c_ticks_per_10us -1;
else
milisecond_tick_gen_count <= c_ticks_per_ms -1;
end if;
tracking_ms_counter <= mmi_ctrl.tracking_period_ms;
elsif state = s_operational then
if milisecond_tick_gen_count = 0 and tracking_update_due /= '1' then
if tracking_ms_counter = 0 then
tracking_update_due <= '1';
else
tracking_ms_counter <= tracking_ms_counter -1;
end if;
if mmi_ctrl.tracking_orvd_to_10ms = '1' then
milisecond_tick_gen_count <= c_ticks_per_10us -1;
else
milisecond_tick_gen_count <= c_ticks_per_ms -1;
end if;
elsif milisecond_tick_gen_count /= 0 then
milisecond_tick_gen_count <= milisecond_tick_gen_count -1;
end if;
else
tracking_update_due <= '0';
end if;
end if;
end process;
end architecture struct;
--
-- -----------------------------------------------------------------------------
-- Abstract : top level for the non-levelling AFI PHY sequencer
-- The top level instances the sub-blocks of the AFI PHY
-- sequencer. In addition a number of multiplexing and high-
-- level control operations are performed. This includes the
-- multiplexing and generation of control signals for: the
-- address and command DRAM interface and pll, oct and datapath
-- latency control signals.
-- -----------------------------------------------------------------------------
--altera message_off 10036
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
--
entity ddr_ctrl_ip_phy_alt_mem_phy_seq IS
generic (
-- choice of FPGA device family and DRAM type
FAMILY : string;
MEM_IF_MEMTYPE : string;
SPEED_GRADE : string;
FAMILYGROUP_ID : natural;
-- physical interface width definitions
MEM_IF_DQS_WIDTH : natural;
MEM_IF_DWIDTH : natural;
MEM_IF_DM_WIDTH : natural;
MEM_IF_DQ_PER_DQS : natural;
DWIDTH_RATIO : natural;
CLOCK_INDEX_WIDTH : natural;
MEM_IF_CLK_PAIR_COUNT : natural;
MEM_IF_ADDR_WIDTH : natural;
MEM_IF_BANKADDR_WIDTH : natural;
MEM_IF_CS_WIDTH : natural;
MEM_IF_NUM_RANKS : natural;
MEM_IF_RANKS_PER_SLOT : natural;
ADV_LAT_WIDTH : natural;
RESYNCHRONISE_AVALON_DBG : natural; -- 0 = false, 1 = true
AV_IF_ADDR_WIDTH : natural;
-- Not used for non-levelled seq
CHIP_OR_DIMM : string;
RDIMM_CONFIG_BITS : string;
-- setup / algorithm information
NOM_DQS_PHASE_SETTING : natural;
SCAN_CLK_DIVIDE_BY : natural;
RDP_ADDR_WIDTH : natural;
PLL_STEPS_PER_CYCLE : natural;
IOE_PHASES_PER_TCK : natural;
IOE_DELAYS_PER_PHS : natural;
MEM_IF_CLK_PS : natural;
WRITE_DESKEW_T10 : natural;
WRITE_DESKEW_HC_T10 : natural;
WRITE_DESKEW_T9NI : natural;
WRITE_DESKEW_HC_T9NI : natural;
WRITE_DESKEW_T9I : natural;
WRITE_DESKEW_HC_T9I : natural;
WRITE_DESKEW_RANGE : natural;
-- initial mode register settings
PHY_DEF_MR_1ST : natural;
PHY_DEF_MR_2ND : natural;
PHY_DEF_MR_3RD : natural;
PHY_DEF_MR_4TH : natural;
MEM_IF_DQSN_EN : natural; -- default off for Cyclone-III
MEM_IF_DQS_CAPTURE_EN : natural;
GENERATE_ADDITIONAL_DBG_RTL : natural; -- 1 signals to include iram and mmi blocks and 0 not to include
SINGLE_DQS_DELAY_CONTROL_CODE : natural; -- reserved for future use
PRESET_RLAT : natural; -- reserved for future use
EN_OCT : natural; -- Does the sequencer use OCT during calibration.
OCT_LAT_WIDTH : natural;
SIM_TIME_REDUCTIONS : natural; -- if 0 null, if 2 rrp for 1 dqs group and 1 cs
FORCE_HC : natural; -- Use to force HardCopy in simulation.
CAPABILITIES : natural; -- advertise capabilities i.e. which ctrl block states to execute (default all on)
TINIT_TCK : natural;
TINIT_RST : natural;
GENERATE_TRACKING_PHASE_STORE : natural; -- reserved for future use
IP_BUILDNUM : natural
);
port (
-- clk / reset
clk : in std_logic;
rst_n : in std_logic;
-- calibration status and prompt
ctl_init_success : out std_logic;
ctl_init_fail : out std_logic;
ctl_init_warning : out std_logic; -- unused
ctl_recalibrate_req : in std_logic;
-- the following two signals are reserved for future use
mem_ac_swapped_ranks : in std_logic_vector(MEM_IF_NUM_RANKS - 1 downto 0);
ctl_cal_byte_lanes : in std_logic_vector(MEM_IF_NUM_RANKS * MEM_IF_DQS_WIDTH - 1 downto 0);
-- pll reconfiguration
seq_pll_inc_dec_n : out std_logic;
seq_pll_start_reconfig : out std_logic;
seq_pll_select : out std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0);
seq_pll_phs_shift_busy : in std_logic;
pll_resync_clk_index : in std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0); -- PLL phase used to select resync clock
pll_measure_clk_index : in std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0); -- PLL phase used to select mimic/measure clock
-- scanchain associated signals (reserved for future use)
seq_scan_clk : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_scan_enable_dqs_config : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_scan_update : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_scan_din : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_scan_enable_ck : out std_logic_vector(MEM_IF_CLK_PAIR_COUNT - 1 downto 0);
seq_scan_enable_dqs : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_scan_enable_dqsn : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_scan_enable_dq : out std_logic_vector(MEM_IF_DWIDTH - 1 downto 0);
seq_scan_enable_dm : out std_logic_vector(MEM_IF_DM_WIDTH - 1 downto 0);
hr_rsc_clk : in std_logic;
-- address / command interface (note these are mapped internally to the seq_ac record)
seq_ac_addr : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_ADDR_WIDTH - 1 downto 0);
seq_ac_ba : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_BANKADDR_WIDTH - 1 downto 0);
seq_ac_cas_n : out std_logic_vector((DWIDTH_RATIO/2) - 1 downto 0);
seq_ac_ras_n : out std_logic_vector((DWIDTH_RATIO/2) - 1 downto 0);
seq_ac_we_n : out std_logic_vector((DWIDTH_RATIO/2) - 1 downto 0);
seq_ac_cke : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_NUM_RANKS - 1 downto 0);
seq_ac_cs_n : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_NUM_RANKS - 1 downto 0);
seq_ac_odt : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_NUM_RANKS - 1 downto 0);
seq_ac_rst_n : out std_logic_vector((DWIDTH_RATIO/2) - 1 downto 0);
seq_ac_sel : out std_logic;
seq_mem_clk_disable : out std_logic;
-- additional datapath latency (reserved for future use)
seq_ac_add_1t_ac_lat_internal : out std_logic;
seq_ac_add_1t_odt_lat_internal : out std_logic;
seq_ac_add_2t : out std_logic;
-- read datapath interface
seq_rdp_reset_req_n : out std_logic;
seq_rdp_inc_read_lat_1x : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_rdp_dec_read_lat_1x : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
rdata : in std_logic_vector( DWIDTH_RATIO * MEM_IF_DWIDTH - 1 downto 0);
-- read data valid (associated signals) interface
seq_rdv_doing_rd : out std_logic_vector(MEM_IF_DQS_WIDTH * DWIDTH_RATIO/2 - 1 downto 0);
rdata_valid : in std_logic_vector( DWIDTH_RATIO/2 - 1 downto 0);
seq_rdata_valid_lat_inc : out std_logic;
seq_rdata_valid_lat_dec : out std_logic;
seq_ctl_rlat : out std_logic_vector(ADV_LAT_WIDTH - 1 downto 0);
-- postamble interface (unused for Cyclone-III)
seq_poa_lat_dec_1x : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_poa_lat_inc_1x : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_poa_protection_override_1x : out std_logic;
-- OCT path control
seq_oct_oct_delay : out std_logic_vector(OCT_LAT_WIDTH - 1 downto 0);
seq_oct_oct_extend : out std_logic_vector(OCT_LAT_WIDTH - 1 downto 0);
seq_oct_value : out std_logic;
-- write data path interface
seq_wdp_dqs_burst : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_DQS_WIDTH - 1 downto 0);
seq_wdp_wdata_valid : out std_logic_vector((DWIDTH_RATIO/2) * MEM_IF_DQS_WIDTH - 1 downto 0);
seq_wdp_wdata : out std_logic_vector( DWIDTH_RATIO * MEM_IF_DWIDTH - 1 downto 0);
seq_wdp_dm : out std_logic_vector( DWIDTH_RATIO * MEM_IF_DM_WIDTH - 1 downto 0);
seq_wdp_dqs : out std_logic_vector( DWIDTH_RATIO - 1 downto 0);
seq_wdp_ovride : out std_logic;
seq_dqs_add_2t_delay : out std_logic_vector(MEM_IF_DQS_WIDTH - 1 downto 0);
seq_ctl_wlat : out std_logic_vector(ADV_LAT_WIDTH - 1 downto 0);
-- mimic path interface
seq_mmc_start : out std_logic;
mmc_seq_done : in std_logic;
mmc_seq_value : in std_logic;
-- parity signals (not used for non-levelled PHY)
mem_err_out_n : in std_logic;
parity_error_n : out std_logic;
--synchronous Avalon debug interface (internally re-synchronised to input clock (a generic option))
dbg_seq_clk : in std_logic;
dbg_seq_rst_n : in std_logic;
dbg_seq_addr : in std_logic_vector(AV_IF_ADDR_WIDTH - 1 downto 0);
dbg_seq_wr : in std_logic;
dbg_seq_rd : in std_logic;
dbg_seq_cs : in std_logic;
dbg_seq_wr_data : in std_logic_vector(31 downto 0);
seq_dbg_rd_data : out std_logic_vector(31 downto 0);
seq_dbg_waitrequest : out std_logic
);
end entity;
library work;
-- The record package (alt_mem_phy_record_pkg) is used to combine command and status signals
-- (into records) to be passed between sequencer blocks. It also contains type and record definitions
-- for the stages of DRAM memory calibration.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_record_pkg.all;
-- The registers package (alt_mem_phy_regs_pkg) is used to combine the definition of the
-- registers for the mmi status registers and functions/procedures applied to the registers
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_regs_pkg.all;
-- The constant package (alt_mem_phy_constants_pkg) contains global 'constants' which are fixed
-- thoughout the sequencer and will not change (for constants which may change between sequencer
-- instances generics are used)
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_constants_pkg.all;
-- The iram address package (alt_mem_phy_iram_addr_pkg) is used to define the base addresses used
-- for iram writes during calibration
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_iram_addr_pkg.all;
-- The address and command package (alt_mem_phy_addr_cmd_pkg) is used to combine DRAM address
-- and command signals in one record and unify the functions operating on this record.
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_addr_cmd_pkg.all;
-- Individually include each of library files for the sub-blocks of the sequencer:
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_admin;
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_mmi;
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_iram;
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_dgrb;
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_dgwb;
--
use work.ddr_ctrl_ip_phy_alt_mem_phy_ctrl;
--
architecture struct of ddr_ctrl_ip_phy_alt_mem_phy_seq IS
attribute altera_attribute : string;
attribute altera_attribute of struct : architecture is "-name MESSAGE_DISABLE 18010";
-- debug signals (similar to those seen in the Quartus v8.0 DDR/DDR2 sequencer)
signal rsu_multiple_valid_latencies_err : std_logic; -- true if >2 valid latency values are detected
signal rsu_grt_one_dvw_err : std_logic; -- true if >1 data valid window is detected
signal rsu_no_dvw_err : std_logic; -- true if no data valid window is detected
signal rsu_codvw_phase : std_logic_vector(11 downto 0); -- set to the phase of the DVW detected if calibration is successful
signal rsu_codvw_size : std_logic_vector(11 downto 0); -- set to the phase of the DVW detected if calibration is successful
signal rsu_read_latency : std_logic_vector(ADV_LAT_WIDTH - 1 downto 0); -- set to the correct read latency if calibration is successful
-- outputs from the dgrb to generate the above rsu_codvw_* signals and report status to the mmi
signal dgrb_mmi : t_dgrb_mmi;
-- admin to mmi interface
signal regs_admin_ctrl_rec : t_admin_ctrl; -- mmi register settings information
signal admin_regs_status_rec : t_admin_stat; -- admin status information
-- odt enable from the admin block based on mr settings
signal enable_odt : std_logic;
-- iram status information (sent to the ctrl block)
signal iram_status : t_iram_stat;
-- dgrb iram write interface
signal dgrb_iram : t_iram_push;
-- ctrl to iram interface
signal ctrl_idib_top : natural; -- current write location in the iram
signal ctrl_active_block : t_ctrl_active_block;
signal ctrl_iram_push : t_ctrl_iram;
signal iram_push_done : std_logic;
signal ctrl_iram_ihi_write : std_logic;
-- local copies of calibration status
signal ctl_init_success_int : std_logic;
signal ctl_init_fail_int : std_logic;
-- refresh period failure flag
signal trefi_failure : std_logic;
-- unified ctrl signal broadcast to all blocks from the ctrl block
signal ctrl_broadcast : t_ctrl_command;
-- standardised status report per block to control block
signal admin_ctrl : t_ctrl_stat;
signal dgwb_ctrl : t_ctrl_stat;
signal dgrb_ctrl : t_ctrl_stat;
-- mmi and ctrl block interface
signal mmi_ctrl : t_mmi_ctrl;
signal ctrl_mmi : t_ctrl_mmi;
-- write datapath override signals
signal dgwb_wdp_override : std_logic;
signal dgrb_wdp_override : std_logic;
-- address/command access request and grant between the dgrb/dgwb blocks and the admin block
signal dgb_ac_access_gnt : std_logic;
signal dgb_ac_access_gnt_r : std_logic;
signal dgb_ac_access_req : std_logic;
signal dgwb_ac_access_req : std_logic;
signal dgrb_ac_access_req : std_logic;
-- per block address/command record (multiplexed in this entity)
signal admin_ac : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
signal dgwb_ac : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
signal dgrb_ac : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
-- doing read signal
signal seq_rdv_doing_rd_int : std_logic_vector(seq_rdv_doing_rd'range);
-- local copy of interface to inc/dec latency on rdata_valid and postamble
signal seq_rdata_valid_lat_dec_int : std_logic;
signal seq_rdata_valid_lat_inc_int : std_logic;
signal seq_poa_lat_inc_1x_int : std_logic_vector(MEM_IF_DQS_WIDTH -1 downto 0);
signal seq_poa_lat_dec_1x_int : std_logic_vector(MEM_IF_DQS_WIDTH -1 downto 0);
-- local copy of write/read latency
signal seq_ctl_wlat_int : std_logic_vector(seq_ctl_wlat'range);
signal seq_ctl_rlat_int : std_logic_vector(seq_ctl_rlat'range);
-- parameterisation of dgrb / dgwb / admin blocks from mmi register settings
signal parameterisation_rec : t_algm_paramaterisation;
-- PLL reconfig
signal seq_pll_phs_shift_busy_r : std_logic;
signal seq_pll_phs_shift_busy_ccd : std_logic;
signal dgrb_pll_inc_dec_n : std_logic;
signal dgrb_pll_start_reconfig : std_logic;
signal dgrb_pll_select : std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0);
signal dgrb_phs_shft_busy : std_logic;
signal mmi_pll_inc_dec_n : std_logic;
signal mmi_pll_start_reconfig : std_logic;
signal mmi_pll_select : std_logic_vector(CLOCK_INDEX_WIDTH - 1 downto 0);
signal pll_mmi : t_pll_mmi;
signal mmi_pll : t_mmi_pll_reconfig;
-- address and command 1t setting (unused for Full Rate)
signal int_ac_nt : std_logic_vector(((DWIDTH_RATIO+2)/4) - 1 downto 0);
signal dgrb_ctrl_ac_nt_good : std_logic;
-- the following signals are reserved for future use
signal ctl_cal_byte_lanes_r : std_logic_vector(ctl_cal_byte_lanes'range);
signal mmi_setup : t_ctrl_cmd_id;
signal dgwb_iram : t_iram_push;
-- track number of poa / rdv adjustments (reporting only)
signal poa_adjustments : natural;
signal rdv_adjustments : natural;
-- convert input generics from natural to std_logic_vector
constant c_phy_def_mr_1st_sl_vector : std_logic_vector(15 downto 0) := std_logic_vector(to_unsigned(PHY_DEF_MR_1ST, 16));
constant c_phy_def_mr_2nd_sl_vector : std_logic_vector(15 downto 0) := std_logic_vector(to_unsigned(PHY_DEF_MR_2ND, 16));
constant c_phy_def_mr_3rd_sl_vector : std_logic_vector(15 downto 0) := std_logic_vector(to_unsigned(PHY_DEF_MR_3RD, 16));
constant c_phy_def_mr_4th_sl_vector : std_logic_vector(15 downto 0) := std_logic_vector(to_unsigned(PHY_DEF_MR_4TH, 16));
-- overrride on capabilities to speed up simulation time
function capabilities_override(capabilities : natural;
sim_time_reductions : natural) return natural is
begin
if sim_time_reductions = 1 then
return 2**c_hl_css_reg_cal_dis_bit; -- disable calibration completely
else
return capabilities;
end if;
end function;
-- set sequencer capabilities
constant c_capabilities_override : natural := capabilities_override(CAPABILITIES, SIM_TIME_REDUCTIONS);
constant c_capabilities : std_logic_vector(31 downto 0) := std_logic_vector(to_unsigned(c_capabilities_override,32));
-- setup for address/command interface
constant c_seq_addr_cmd_config : t_addr_cmd_config_rec := set_config_rec(MEM_IF_ADDR_WIDTH, MEM_IF_BANKADDR_WIDTH, MEM_IF_NUM_RANKS, DWIDTH_RATIO, MEM_IF_MEMTYPE);
-- setup for odt signals
-- odt setting as implemented in the altera high-performance controller for ddrx memories
constant c_odt_settings : t_odt_array(0 to MEM_IF_NUM_RANKS-1) := set_odt_values(MEM_IF_NUM_RANKS, MEM_IF_RANKS_PER_SLOT, MEM_IF_MEMTYPE);
-- a prefix for all report signals to identify phy and sequencer block
--
constant seq_report_prefix : string := "ddr_ctrl_ip_phy_alt_mem_phy_seq (top) : ";
-- setup iram configuration
constant c_iram_addresses : t_base_hdr_addresses := calc_iram_addresses(DWIDTH_RATIO, PLL_STEPS_PER_CYCLE, MEM_IF_DWIDTH, MEM_IF_NUM_RANKS, MEM_IF_DQS_CAPTURE_EN);
constant c_int_iram_awidth : natural := c_iram_addresses.required_addr_bits;
constant c_preset_cal_setup : t_preset_cal := setup_instant_on(SIM_TIME_REDUCTIONS, FAMILYGROUP_ID, MEM_IF_MEMTYPE, DWIDTH_RATIO, PLL_STEPS_PER_CYCLE, c_phy_def_mr_1st_sl_vector, c_phy_def_mr_2nd_sl_vector, c_phy_def_mr_3rd_sl_vector);
constant c_preset_codvw_phase : natural := c_preset_cal_setup.codvw_phase;
constant c_preset_codvw_size : natural := c_preset_cal_setup.codvw_size;
constant c_tracking_interval_in_ms : natural := 128;
constant c_mem_if_cal_bank : natural := 0; -- location to calibrate to
constant c_mem_if_cal_base_col : natural := 0; -- default all zeros
constant c_mem_if_cal_base_row : natural := 0;
constant c_non_op_eval_md : string := "PIN_FINDER"; -- non_operational evaluation mode (used when GENERATE_ADDITIONAL_DBG_RTL = 1)
begin -- architecture struct
-- ---------------------------------------------------------------
-- tie off unused signals to default values
-- ---------------------------------------------------------------
-- scan chain associated signals
seq_scan_clk <= (others => '0');
seq_scan_enable_dqs_config <= (others => '0');
seq_scan_update <= (others => '0');
seq_scan_din <= (others => '0');
seq_scan_enable_ck <= (others => '0');
seq_scan_enable_dqs <= (others => '0');
seq_scan_enable_dqsn <= (others => '0');
seq_scan_enable_dq <= (others => '0');
seq_scan_enable_dm <= (others => '0');
seq_dqs_add_2t_delay <= (others => '0');
seq_rdp_inc_read_lat_1x <= (others => '0');
seq_rdp_dec_read_lat_1x <= (others => '0');
-- warning flag (not used in non-levelled sequencer)
ctl_init_warning <= '0';
-- parity error flag (not used in non-levelled sequencer)
parity_error_n <= '1';
--
admin: entity ddr_ctrl_ip_phy_alt_mem_phy_admin
generic map
(
MEM_IF_DQS_WIDTH => MEM_IF_DQS_WIDTH,
MEM_IF_DWIDTH => MEM_IF_DWIDTH,
MEM_IF_DM_WIDTH => MEM_IF_DM_WIDTH,
MEM_IF_DQ_PER_DQS => MEM_IF_DQ_PER_DQS,
DWIDTH_RATIO => DWIDTH_RATIO,
CLOCK_INDEX_WIDTH => CLOCK_INDEX_WIDTH,
MEM_IF_CLK_PAIR_COUNT => MEM_IF_CLK_PAIR_COUNT,
MEM_IF_ADDR_WIDTH => MEM_IF_ADDR_WIDTH,
MEM_IF_BANKADDR_WIDTH => MEM_IF_BANKADDR_WIDTH,
MEM_IF_NUM_RANKS => MEM_IF_NUM_RANKS,
ADV_LAT_WIDTH => ADV_LAT_WIDTH,
MEM_IF_DQSN_EN => MEM_IF_DQSN_EN,
MEM_IF_MEMTYPE => MEM_IF_MEMTYPE,
MEM_IF_CAL_BANK => c_mem_if_cal_bank,
MEM_IF_CAL_BASE_ROW => c_mem_if_cal_base_row,
GENERATE_ADDITIONAL_DBG_RTL => GENERATE_ADDITIONAL_DBG_RTL,
NON_OP_EVAL_MD => c_non_op_eval_md,
MEM_IF_CLK_PS => MEM_IF_CLK_PS,
TINIT_TCK => TINIT_TCK,
TINIT_RST => TINIT_RST
)
port map
(
clk => clk,
rst_n => rst_n,
mem_ac_swapped_ranks => mem_ac_swapped_ranks,
ctl_cal_byte_lanes => ctl_cal_byte_lanes_r,
seq_ac => admin_ac,
seq_ac_sel => seq_ac_sel,
enable_odt => enable_odt,
regs_admin_ctrl_rec => regs_admin_ctrl_rec,
admin_regs_status_rec => admin_regs_status_rec,
trefi_failure => trefi_failure,
ctrl_admin => ctrl_broadcast,
admin_ctrl => admin_ctrl,
ac_access_req => dgb_ac_access_req,
ac_access_gnt => dgb_ac_access_gnt,
cal_fail => ctl_init_fail_int,
cal_success => ctl_init_success_int,
ctl_recalibrate_req => ctl_recalibrate_req
);
-- selectively include the debug i/f (iram and mmi blocks)
with_debug_if : if GENERATE_ADDITIONAL_DBG_RTL = 1 generate
signal mmi_iram : t_iram_ctrl;
signal mmi_iram_enable_writes : std_logic;
signal rrp_mem_loc : natural range 0 to 2 ** c_int_iram_awidth - 1;
signal command_req_r : std_logic;
signal ctrl_broadcast_r : t_ctrl_command;
begin
-- register ctrl_broadcast locally
process (clk, rst_n)
begin
if rst_n = '0' then
ctrl_broadcast_r <= defaults;
elsif rising_edge(clk) then
ctrl_broadcast_r <= ctrl_broadcast;
end if;
end process;
--
mmi : entity ddr_ctrl_ip_phy_alt_mem_phy_mmi
generic map (
MEM_IF_DQS_WIDTH => MEM_IF_DQS_WIDTH,
MEM_IF_DWIDTH => MEM_IF_DWIDTH,
MEM_IF_DM_WIDTH => MEM_IF_DM_WIDTH,
MEM_IF_DQ_PER_DQS => MEM_IF_DQ_PER_DQS,
DWIDTH_RATIO => DWIDTH_RATIO,
CLOCK_INDEX_WIDTH => CLOCK_INDEX_WIDTH,
MEM_IF_CLK_PAIR_COUNT => MEM_IF_CLK_PAIR_COUNT,
MEM_IF_ADDR_WIDTH => MEM_IF_ADDR_WIDTH,
MEM_IF_BANKADDR_WIDTH => MEM_IF_BANKADDR_WIDTH,
MEM_IF_NUM_RANKS => MEM_IF_NUM_RANKS,
MEM_IF_DQS_CAPTURE => MEM_IF_DQS_CAPTURE_EN,
ADV_LAT_WIDTH => ADV_LAT_WIDTH,
RESYNCHRONISE_AVALON_DBG => RESYNCHRONISE_AVALON_DBG,
AV_IF_ADDR_WIDTH => AV_IF_ADDR_WIDTH,
NOM_DQS_PHASE_SETTING => NOM_DQS_PHASE_SETTING,
SCAN_CLK_DIVIDE_BY => SCAN_CLK_DIVIDE_BY,
RDP_ADDR_WIDTH => RDP_ADDR_WIDTH,
PLL_STEPS_PER_CYCLE => PLL_STEPS_PER_CYCLE,
IOE_PHASES_PER_TCK => IOE_PHASES_PER_TCK,
IOE_DELAYS_PER_PHS => IOE_DELAYS_PER_PHS,
MEM_IF_CLK_PS => MEM_IF_CLK_PS,
PHY_DEF_MR_1ST => c_phy_def_mr_1st_sl_vector,
PHY_DEF_MR_2ND => c_phy_def_mr_2nd_sl_vector,
PHY_DEF_MR_3RD => c_phy_def_mr_3rd_sl_vector,
PHY_DEF_MR_4TH => c_phy_def_mr_4th_sl_vector,
MEM_IF_MEMTYPE => MEM_IF_MEMTYPE,
PRESET_RLAT => PRESET_RLAT,
CAPABILITIES => c_capabilities_override,
USE_IRAM => '1', -- always use iram (generic is rfu)
IRAM_AWIDTH => c_int_iram_awidth,
TRACKING_INTERVAL_IN_MS => c_tracking_interval_in_ms,
READ_LAT_WIDTH => ADV_LAT_WIDTH
)
port map(
clk => clk,
rst_n => rst_n,
dbg_seq_clk => dbg_seq_clk,
dbg_seq_rst_n => dbg_seq_rst_n,
dbg_seq_addr => dbg_seq_addr,
dbg_seq_wr => dbg_seq_wr,
dbg_seq_rd => dbg_seq_rd,
dbg_seq_cs => dbg_seq_cs,
dbg_seq_wr_data => dbg_seq_wr_data,
seq_dbg_rd_data => seq_dbg_rd_data,
seq_dbg_waitrequest => seq_dbg_waitrequest,
regs_admin_ctrl => regs_admin_ctrl_rec,
admin_regs_status => admin_regs_status_rec,
mmi_iram => mmi_iram,
mmi_iram_enable_writes => mmi_iram_enable_writes,
iram_status => iram_status,
mmi_ctrl => mmi_ctrl,
ctrl_mmi => ctrl_mmi,
int_ac_1t => int_ac_nt(0),
invert_ac_1t => open,
trefi_failure => trefi_failure,
parameterisation_rec => parameterisation_rec,
pll_mmi => pll_mmi,
mmi_pll => mmi_pll,
dgrb_mmi => dgrb_mmi
);
--
iram : entity ddr_ctrl_ip_phy_alt_mem_phy_iram
generic map(
MEM_IF_MEMTYPE => MEM_IF_MEMTYPE,
FAMILYGROUP_ID => FAMILYGROUP_ID,
MEM_IF_DQS_WIDTH => MEM_IF_DQS_WIDTH,
MEM_IF_DQ_PER_DQS => MEM_IF_DQ_PER_DQS,
MEM_IF_DWIDTH => MEM_IF_DWIDTH,
MEM_IF_DM_WIDTH => MEM_IF_DM_WIDTH,
MEM_IF_NUM_RANKS => MEM_IF_NUM_RANKS,
IRAM_AWIDTH => c_int_iram_awidth,
REFRESH_COUNT_INIT => 12,
PRESET_RLAT => PRESET_RLAT,
PLL_STEPS_PER_CYCLE => PLL_STEPS_PER_CYCLE,
CAPABILITIES => c_capabilities_override,
IP_BUILDNUM => IP_BUILDNUM
)
port map(
clk => clk,
rst_n => rst_n,
mmi_iram => mmi_iram,
mmi_iram_enable_writes => mmi_iram_enable_writes,
iram_status => iram_status,
iram_push_done => iram_push_done,
ctrl_iram => ctrl_broadcast_r,
dgrb_iram => dgrb_iram,
admin_regs_status_rec => admin_regs_status_rec,
ctrl_idib_top => ctrl_idib_top,
ctrl_iram_push => ctrl_iram_push,
dgwb_iram => dgwb_iram
);
-- calculate where current data should go in the iram
process (clk, rst_n)
variable v_words_req : natural range 0 to 2 * MEM_IF_DWIDTH * PLL_STEPS_PER_CYCLE * DWIDTH_RATIO - 1; -- how many words are required
begin
if rst_n = '0' then
ctrl_idib_top <= 0;
command_req_r <= '0';
rrp_mem_loc <= 0;
elsif rising_edge(clk) then
if command_req_r = '0' and ctrl_broadcast_r.command_req = '1' then -- execute once on each command_req assertion
-- default a 'safe location'
ctrl_idib_top <= c_iram_addresses.safe_dummy;
case ctrl_broadcast_r.command is
when cmd_write_ihi => -- reset pointers
rrp_mem_loc <= c_iram_addresses.rrp;
ctrl_idib_top <= 0; -- write header to zero location always
when cmd_rrp_sweep =>
-- add previous space requirement onto the current address
ctrl_idib_top <= rrp_mem_loc;
-- add the current space requirement to v_rrp_mem_loc
-- there are (DWIDTH_RATIO/2) * PLL_STEPS_PER_CYCLE phases swept packed into 32 bit words per pin
-- note: special case for single_bit calibration stages (e.g. read_mtp alignment)
if ctrl_broadcast_r.command_op.single_bit = '1' then
v_words_req := iram_wd_for_one_pin_rrp(DWIDTH_RATIO, PLL_STEPS_PER_CYCLE, MEM_IF_DWIDTH, MEM_IF_DQS_CAPTURE_EN);
else
v_words_req := iram_wd_for_full_rrp(DWIDTH_RATIO, PLL_STEPS_PER_CYCLE, MEM_IF_DWIDTH, MEM_IF_DQS_CAPTURE_EN);
end if;
v_words_req := v_words_req + 2; -- add 1 word location for header / footer information
rrp_mem_loc <= rrp_mem_loc + v_words_req;
when cmd_rrp_seek |
cmd_read_mtp =>
-- add previous space requirement onto the current address
ctrl_idib_top <= rrp_mem_loc;
-- require 3 words - header, result and footer
v_words_req := 3;
rrp_mem_loc <= rrp_mem_loc + v_words_req;
when others =>
null;
end case;
end if;
command_req_r <= ctrl_broadcast_r.command_req;
-- if recalibration request then reset iram address
if ctl_recalibrate_req = '1' or mmi_ctrl.calibration_start = '1' then
rrp_mem_loc <= c_iram_addresses.rrp;
end if;
end if;
end process;
end generate; -- with debug interface
-- if no debug interface (iram/mmi block) tie off relevant signals
without_debug_if : if GENERATE_ADDITIONAL_DBG_RTL = 0 generate
constant c_slv_hl_stage_enable : std_logic_vector(31 downto 0) := std_logic_vector(to_unsigned(c_capabilities_override, 32));
constant c_hl_stage_enable : std_logic_vector(c_hl_ccs_num_stages-1 downto 0) := c_slv_hl_stage_enable(c_hl_ccs_num_stages-1 downto 0);
constant c_pll_360_sweeps : natural := rrp_pll_phase_mult(DWIDTH_RATIO, MEM_IF_DQS_CAPTURE_EN);
signal mmi_regs : t_mmi_regs := defaults;
begin
-- avalon interface signals
seq_dbg_rd_data <= (others => '0');
seq_dbg_waitrequest <= '0';
-- The following registers are generated to simplify the assignments which follow
-- but will be optimised away in synthesis
mmi_regs.rw_regs <= defaults(c_phy_def_mr_1st_sl_vector,
c_phy_def_mr_2nd_sl_vector,
c_phy_def_mr_3rd_sl_vector,
c_phy_def_mr_4th_sl_vector,
NOM_DQS_PHASE_SETTING,
PLL_STEPS_PER_CYCLE,
c_pll_360_sweeps,
c_tracking_interval_in_ms,
c_hl_stage_enable);
mmi_regs.ro_regs <= defaults(dgrb_mmi,
ctrl_mmi,
pll_mmi,
mmi_regs.rw_regs.rw_if_test,
'0', -- do not use iram
MEM_IF_DQS_CAPTURE_EN,
int_ac_nt(0),
trefi_failure,
iram_status,
c_int_iram_awidth);
process(mmi_regs)
begin
-- debug parameterisation signals
regs_admin_ctrl_rec <= pack_record(mmi_regs.rw_regs);
parameterisation_rec <= pack_record(mmi_regs.rw_regs);
mmi_pll <= pack_record(mmi_regs.rw_regs);
mmi_ctrl <= pack_record(mmi_regs.rw_regs);
end process;
-- from the iram
iram_status <= defaults;
iram_push_done <= '0';
end generate; -- without debug interface
--
dgrb : entity ddr_ctrl_ip_phy_alt_mem_phy_dgrb
generic map(
MEM_IF_DQS_WIDTH => MEM_IF_DQS_WIDTH,
MEM_IF_DQ_PER_DQS => MEM_IF_DQ_PER_DQS,
MEM_IF_DWIDTH => MEM_IF_DWIDTH,
MEM_IF_DM_WIDTH => MEM_IF_DM_WIDTH,
MEM_IF_DQS_CAPTURE => MEM_IF_DQS_CAPTURE_EN,
DWIDTH_RATIO => DWIDTH_RATIO,
CLOCK_INDEX_WIDTH => CLOCK_INDEX_WIDTH,
MEM_IF_ADDR_WIDTH => MEM_IF_ADDR_WIDTH,
MEM_IF_BANKADDR_WIDTH => MEM_IF_BANKADDR_WIDTH,
MEM_IF_NUM_RANKS => MEM_IF_NUM_RANKS,
MEM_IF_MEMTYPE => MEM_IF_MEMTYPE,
ADV_LAT_WIDTH => ADV_LAT_WIDTH,
PRESET_RLAT => PRESET_RLAT,
PLL_STEPS_PER_CYCLE => PLL_STEPS_PER_CYCLE,
SIM_TIME_REDUCTIONS => SIM_TIME_REDUCTIONS,
GENERATE_ADDITIONAL_DBG_RTL => GENERATE_ADDITIONAL_DBG_RTL,
PRESET_CODVW_PHASE => c_preset_codvw_phase,
PRESET_CODVW_SIZE => c_preset_codvw_size,
MEM_IF_CAL_BANK => c_mem_if_cal_bank,
MEM_IF_CAL_BASE_COL => c_mem_if_cal_base_col,
EN_OCT => EN_OCT
)
port map(
clk => clk,
rst_n => rst_n,
dgrb_ctrl => dgrb_ctrl,
ctrl_dgrb => ctrl_broadcast,
parameterisation_rec => parameterisation_rec,
phs_shft_busy => dgrb_phs_shft_busy,
seq_pll_inc_dec_n => dgrb_pll_inc_dec_n,
seq_pll_select => dgrb_pll_select,
seq_pll_start_reconfig => dgrb_pll_start_reconfig,
pll_resync_clk_index => pll_resync_clk_index,
pll_measure_clk_index => pll_measure_clk_index,
dgrb_iram => dgrb_iram,
iram_push_done => iram_push_done,
dgrb_ac => dgrb_ac,
dgrb_ac_access_req => dgrb_ac_access_req,
dgrb_ac_access_gnt => dgb_ac_access_gnt_r,
seq_rdata_valid_lat_inc => seq_rdata_valid_lat_inc_int,
seq_rdata_valid_lat_dec => seq_rdata_valid_lat_dec_int,
seq_poa_lat_dec_1x => seq_poa_lat_dec_1x_int,
seq_poa_lat_inc_1x => seq_poa_lat_inc_1x_int,
rdata_valid => rdata_valid,
rdata => rdata,
doing_rd => seq_rdv_doing_rd_int,
rd_lat => seq_ctl_rlat_int,
wd_lat => seq_ctl_wlat_int,
dgrb_wdp_ovride => dgrb_wdp_override,
seq_oct_value => seq_oct_value,
seq_mmc_start => seq_mmc_start,
mmc_seq_done => mmc_seq_done,
mmc_seq_value => mmc_seq_value,
ctl_cal_byte_lanes => ctl_cal_byte_lanes_r,
odt_settings => c_odt_settings,
dgrb_ctrl_ac_nt_good => dgrb_ctrl_ac_nt_good,
dgrb_mmi => dgrb_mmi
);
--
dgwb : entity ddr_ctrl_ip_phy_alt_mem_phy_dgwb
generic map(
-- Physical IF width definitions
MEM_IF_DQS_WIDTH => MEM_IF_DQS_WIDTH,
MEM_IF_DQ_PER_DQS => MEM_IF_DQ_PER_DQS,
MEM_IF_DWIDTH => MEM_IF_DWIDTH,
MEM_IF_DM_WIDTH => MEM_IF_DM_WIDTH,
DWIDTH_RATIO => DWIDTH_RATIO,
MEM_IF_ADDR_WIDTH => MEM_IF_ADDR_WIDTH,
MEM_IF_BANKADDR_WIDTH => MEM_IF_BANKADDR_WIDTH,
MEM_IF_NUM_RANKS => MEM_IF_NUM_RANKS,
MEM_IF_MEMTYPE => MEM_IF_MEMTYPE,
ADV_LAT_WIDTH => ADV_LAT_WIDTH,
MEM_IF_CAL_BANK => c_mem_if_cal_bank,
MEM_IF_CAL_BASE_COL => c_mem_if_cal_base_col
)
port map(
clk => clk,
rst_n => rst_n,
parameterisation_rec => parameterisation_rec,
dgwb_ctrl => dgwb_ctrl,
ctrl_dgwb => ctrl_broadcast,
dgwb_iram => dgwb_iram,
iram_push_done => iram_push_done,
dgwb_ac_access_req => dgwb_ac_access_req,
dgwb_ac_access_gnt => dgb_ac_access_gnt_r,
dgwb_dqs_burst => seq_wdp_dqs_burst,
dgwb_wdata_valid => seq_wdp_wdata_valid,
dgwb_wdata => seq_wdp_wdata,
dgwb_dm => seq_wdp_dm,
dgwb_dqs => seq_wdp_dqs,
dgwb_wdp_ovride => dgwb_wdp_override,
dgwb_ac => dgwb_ac,
bypassed_rdata => rdata(DWIDTH_RATIO * MEM_IF_DWIDTH -1 downto (DWIDTH_RATIO-1) * MEM_IF_DWIDTH),
odt_settings => c_odt_settings
);
--
ctrl: entity ddr_ctrl_ip_phy_alt_mem_phy_ctrl
generic map(
FAMILYGROUP_ID => FAMILYGROUP_ID,
MEM_IF_DLL_LOCK_COUNT => 1280/(DWIDTH_RATIO/2),
MEM_IF_MEMTYPE => MEM_IF_MEMTYPE,
DWIDTH_RATIO => DWIDTH_RATIO,
IRAM_ADDRESSING => c_iram_addresses,
MEM_IF_CLK_PS => MEM_IF_CLK_PS,
TRACKING_INTERVAL_IN_MS => c_tracking_interval_in_ms,
GENERATE_ADDITIONAL_DBG_RTL => GENERATE_ADDITIONAL_DBG_RTL,
MEM_IF_NUM_RANKS => MEM_IF_NUM_RANKS,
MEM_IF_DQS_WIDTH => MEM_IF_DQS_WIDTH,
SIM_TIME_REDUCTIONS => SIM_TIME_REDUCTIONS,
ACK_SEVERITY => warning
)
port map(
clk => clk,
rst_n => rst_n,
ctl_init_success => ctl_init_success_int,
ctl_init_fail => ctl_init_fail_int,
ctl_recalibrate_req => ctl_recalibrate_req,
iram_status => iram_status,
iram_push_done => iram_push_done,
ctrl_op_rec => ctrl_broadcast,
admin_ctrl => admin_ctrl,
dgrb_ctrl => dgrb_ctrl,
dgwb_ctrl => dgwb_ctrl,
ctrl_iram_push => ctrl_iram_push,
ctl_cal_byte_lanes => ctl_cal_byte_lanes_r,
dgrb_ctrl_ac_nt_good => dgrb_ctrl_ac_nt_good,
int_ac_nt => int_ac_nt,
mmi_ctrl => mmi_ctrl,
ctrl_mmi => ctrl_mmi
);
-- ------------------------------------------------------------------
-- generate legacy rsu signals
-- ------------------------------------------------------------------
process(rst_n, clk)
begin
if rst_n = '0' then
rsu_multiple_valid_latencies_err <= '0';
rsu_grt_one_dvw_err <= '0';
rsu_no_dvw_err <= '0';
rsu_codvw_phase <= (others => '0');
rsu_codvw_size <= (others => '0');
rsu_read_latency <= (others => '0');
elsif rising_edge(clk) then
if dgrb_ctrl.command_err = '1' then
case to_integer(unsigned(dgrb_ctrl.command_result)) is
when C_ERR_RESYNC_NO_VALID_PHASES =>
rsu_no_dvw_err <= '1';
when C_ERR_RESYNC_MULTIPLE_EQUAL_WINDOWS =>
rsu_multiple_valid_latencies_err <= '1';
when others => null;
end case;
end if;
rsu_codvw_phase(dgrb_mmi.cal_codvw_phase'range) <= dgrb_mmi.cal_codvw_phase;
rsu_codvw_size(dgrb_mmi.cal_codvw_size'range) <= dgrb_mmi.cal_codvw_size;
rsu_read_latency <= seq_ctl_rlat_int;
rsu_grt_one_dvw_err <= dgrb_mmi.codvw_grt_one_dvw;
-- Reset the flag on a recal request :
if ( ctl_recalibrate_req = '1') then
rsu_grt_one_dvw_err <= '0';
rsu_no_dvw_err <= '0';
rsu_multiple_valid_latencies_err <= '0';
end if;
end if;
end process;
-- ---------------------------------------------------------------
-- top level multiplexing and ctrl functionality
-- ---------------------------------------------------------------
oct_delay_block : block
constant DEFAULT_OCT_DELAY_CONST : integer := - 2; -- higher increases delay by one mem_clk cycle, lower decreases delay by one mem_clk cycle.
constant DEFAULT_OCT_EXTEND : natural := 3;
-- Returns additive latency extracted from mr0 as a natural number.
function decode_cl(mr0 : in std_logic_vector(12 downto 0))
return natural is
variable v_cl : natural range 0 to 2**4 - 1;
begin
if MEM_IF_MEMTYPE = "DDR" or MEM_IF_MEMTYPE = "DDR2" then
v_cl := to_integer(unsigned(mr0(6 downto 4)));
elsif MEM_IF_MEMTYPE = "DDR3" then
v_cl := to_integer(unsigned(mr0(6 downto 4))) + 4;
else
report "Unsupported memory type " & MEM_IF_MEMTYPE severity failure;
end if;
return v_cl;
end function;
-- Returns additive latency extracted from mr1 as a natural number.
function decode_al(mr1 : in std_logic_vector(12 downto 0))
return natural is
variable v_al : natural range 0 to 2**4 - 1;
begin
if MEM_IF_MEMTYPE = "DDR" or MEM_IF_MEMTYPE = "DDR2" then
v_al := to_integer(unsigned(mr1(5 downto 3)));
elsif MEM_IF_MEMTYPE = "DDR3" then
v_al := to_integer(unsigned(mr1(4 downto 3)));
else
report "Unsupported memory type " & MEM_IF_MEMTYPE severity failure;
end if;
return v_al;
end function;
-- Returns cas write latency extracted from mr2 as a natural number.
function decode_cwl(
mr0 : in std_logic_vector(12 downto 0);
mr2 : in std_logic_vector(12 downto 0)
)
return natural is
variable v_cwl : natural range 0 to 2**4 - 1;
begin
if MEM_IF_MEMTYPE = "DDR" then
v_cwl := 1;
elsif MEM_IF_MEMTYPE = "DDR2" then
v_cwl := decode_cl(mr0) - 1;
elsif MEM_IF_MEMTYPE = "DDR3" then
v_cwl := to_integer(unsigned(mr2(4 downto 3))) + 5;
else
report "Unsupported memory type " & MEM_IF_MEMTYPE severity failure;
end if;
return v_cwl;
end function;
begin
-- Process to work out timings for OCT extension and delay with respect to doing_read. NOTE that it is calculated on the basis of CL, CWL, ctl_wlat
oct_delay_proc : process(clk, rst_n)
variable v_cl : natural range 0 to 2**4 - 1; -- Total read latency.
variable v_cwl : natural range 0 to 2**4 - 1; -- Total write latency
variable oct_delay : natural range 0 to 2**OCT_LAT_WIDTH - 1;
variable v_wlat : natural range 0 to 2**ADV_LAT_WIDTH - 1;
begin
if rst_n = '0' then
seq_oct_oct_delay <= (others => '0');
seq_oct_oct_extend <= std_logic_vector(to_unsigned(DEFAULT_OCT_EXTEND, OCT_LAT_WIDTH));
elsif rising_edge(clk) then
if ctl_init_success_int = '1' then
seq_oct_oct_extend <= std_logic_vector(to_unsigned(DEFAULT_OCT_EXTEND, OCT_LAT_WIDTH));
v_cl := decode_cl(admin_regs_status_rec.mr0);
v_cwl := decode_cwl(admin_regs_status_rec.mr0, admin_regs_status_rec.mr2);
if SIM_TIME_REDUCTIONS = 1 then
v_wlat := c_preset_cal_setup.wlat;
else
v_wlat := to_integer(unsigned(seq_ctl_wlat_int));
end if;
oct_delay := DWIDTH_RATIO * v_wlat / 2 + (v_cl - v_cwl) + DEFAULT_OCT_DELAY_CONST;
if not (FAMILYGROUP_ID = 2) then -- CIII doesn't support OCT
seq_oct_oct_delay <= std_logic_vector(to_unsigned(oct_delay, OCT_LAT_WIDTH));
end if;
else
seq_oct_oct_delay <= (others => '0');
seq_oct_oct_extend <= std_logic_vector(to_unsigned(DEFAULT_OCT_EXTEND, OCT_LAT_WIDTH));
end if;
end if;
end process;
end block;
-- control postamble protection override signal (seq_poa_protection_override_1x)
process(clk, rst_n)
variable v_warning_given : std_logic;
begin
if rst_n = '0' then
seq_poa_protection_override_1x <= '0';
v_warning_given := '0';
elsif rising_edge(clk) then
case ctrl_broadcast.command is
when cmd_rdv |
cmd_rrp_sweep |
cmd_rrp_seek |
cmd_prep_adv_rd_lat |
cmd_prep_adv_wr_lat => seq_poa_protection_override_1x <= '1';
when others => seq_poa_protection_override_1x <= '0';
end case;
end if;
end process;
ac_mux : block
constant c_mem_clk_disable_pipe_len : natural := 3;
signal seen_phy_init_complete : std_logic;
signal mem_clk_disable : std_logic_vector(c_mem_clk_disable_pipe_len - 1 downto 0);
signal ctrl_broadcast_r : t_ctrl_command;
begin
-- register ctrl_broadcast locally
-- #for speed and to reduce fan out
process (clk, rst_n)
begin
if rst_n = '0' then
ctrl_broadcast_r <= defaults;
elsif rising_edge(clk) then
ctrl_broadcast_r <= ctrl_broadcast;
end if;
end process;
-- multiplex mem interface control between admin, dgrb and dgwb
process(clk, rst_n)
variable v_seq_ac_mux : t_addr_cmd_vector(0 to (DWIDTH_RATIO/2)-1);
begin
if rst_n = '0' then
seq_rdv_doing_rd <= (others => '0');
seq_mem_clk_disable <= '1';
mem_clk_disable <= (others => '1');
seen_phy_init_complete <= '0';
seq_ac_addr <= (others => '0');
seq_ac_ba <= (others => '0');
seq_ac_cas_n <= (others => '1');
seq_ac_ras_n <= (others => '1');
seq_ac_we_n <= (others => '1');
seq_ac_cke <= (others => '0');
seq_ac_cs_n <= (others => '1');
seq_ac_odt <= (others => '0');
seq_ac_rst_n <= (others => '0');
elsif rising_edge(clk) then
seq_rdv_doing_rd <= seq_rdv_doing_rd_int;
seq_mem_clk_disable <= mem_clk_disable(c_mem_clk_disable_pipe_len-1);
mem_clk_disable(c_mem_clk_disable_pipe_len-1 downto 1) <= mem_clk_disable(c_mem_clk_disable_pipe_len-2 downto 0);
if dgwb_ac_access_req = '1' and dgb_ac_access_gnt = '1' then
v_seq_ac_mux := dgwb_ac;
elsif dgrb_ac_access_req = '1' and dgb_ac_access_gnt = '1' then
v_seq_ac_mux := dgrb_ac;
else
v_seq_ac_mux := admin_ac;
end if;
if ctl_recalibrate_req = '1' then
mem_clk_disable(0) <= '1';
seen_phy_init_complete <= '0';
elsif ctrl_broadcast_r.command = cmd_init_dram and ctrl_broadcast_r.command_req = '1' then
mem_clk_disable(0) <= '0';
seen_phy_init_complete <= '1';
end if;
if seen_phy_init_complete /= '1' then -- if not initialised the phy hold in reset
seq_ac_addr <= (others => '0');
seq_ac_ba <= (others => '0');
seq_ac_cas_n <= (others => '1');
seq_ac_ras_n <= (others => '1');
seq_ac_we_n <= (others => '1');
seq_ac_cke <= (others => '0');
seq_ac_cs_n <= (others => '1');
seq_ac_odt <= (others => '0');
seq_ac_rst_n <= (others => '0');
else
if enable_odt = '0' then
v_seq_ac_mux := mask(c_seq_addr_cmd_config, v_seq_ac_mux, odt, '0');
end if;
unpack_addr_cmd_vector (
c_seq_addr_cmd_config,
v_seq_ac_mux,
seq_ac_addr,
seq_ac_ba,
seq_ac_cas_n,
seq_ac_ras_n,
seq_ac_we_n,
seq_ac_cke,
seq_ac_cs_n,
seq_ac_odt,
seq_ac_rst_n);
end if;
end if;
end process;
end block;
-- register dgb_ac_access_gnt signal to ensure ODT set correctly in dgrb and dgwb prior to a read or write operation
process(clk, rst_n)
begin
if rst_n = '0' then
dgb_ac_access_gnt_r <= '0';
elsif rising_edge(clk) then
dgb_ac_access_gnt_r <= dgb_ac_access_gnt;
end if;
end process;
-- multiplex access request from dgrb/dgwb to admin block with checking for multiple accesses
process (dgrb_ac_access_req, dgwb_ac_access_req)
begin
dgb_ac_access_req <= '0';
if dgwb_ac_access_req = '1' and dgrb_ac_access_req = '1' then
report seq_report_prefix & "multiple accesses attempted from DGRB and DGWB to admin block via signals dg.b_ac_access_reg " severity failure;
elsif dgwb_ac_access_req = '1' or dgrb_ac_access_req = '1' then
dgb_ac_access_req <= '1';
end if;
end process;
rdv_poa_blk : block
-- signals to control static setup of ctl_rdata_valid signal for instant on mode:
constant c_static_rdv_offset : integer := c_preset_cal_setup.rdv_lat; -- required change in RDV latency (should always be > 0)
signal static_rdv_offset : natural range 0 to abs(c_static_rdv_offset); -- signal to count # RDV shifts
constant c_dly_rdv_set : natural := 7; -- delay between RDV shifts
signal dly_rdv_inc_dec : std_logic; -- 1 = inc, 0 = dec
signal rdv_set_delay : natural range 0 to c_dly_rdv_set; -- signal to delay RDV shifts
-- same for poa protection
constant c_static_poa_offset : integer := c_preset_cal_setup.poa_lat;
signal static_poa_offset : natural range 0 to abs(c_static_poa_offset);
constant c_dly_poa_set : natural := 7;
signal dly_poa_inc_dec : std_logic;
signal poa_set_delay : natural range 0 to c_dly_poa_set;
-- function to abstract increment or decrement checking
function set_inc_dec(offset : integer) return std_logic is
begin
if offset < 0 then
return '1';
else
return '0';
end if;
end function;
begin
-- register postamble and rdata_valid latencies
-- note: postamble unused for Cyclone-III
-- RDV
process(clk, rst_n)
begin
if rst_n = '0' then
if SIM_TIME_REDUCTIONS = 1 then
-- setup offset calc
static_rdv_offset <= abs(c_static_rdv_offset);
dly_rdv_inc_dec <= set_inc_dec(c_static_rdv_offset);
rdv_set_delay <= c_dly_rdv_set;
end if;
seq_rdata_valid_lat_dec <= '0';
seq_rdata_valid_lat_inc <= '0';
elsif rising_edge(clk) then
if SIM_TIME_REDUCTIONS = 1 then -- perform static setup of RDV signal
if ctl_recalibrate_req = '1' then -- second reset condition
-- setup offset calc
static_rdv_offset <= abs(c_static_rdv_offset);
dly_rdv_inc_dec <= set_inc_dec(c_static_rdv_offset);
rdv_set_delay <= c_dly_rdv_set;
else
if static_rdv_offset /= 0 and
rdv_set_delay = 0 then
seq_rdata_valid_lat_dec <= not dly_rdv_inc_dec;
seq_rdata_valid_lat_inc <= dly_rdv_inc_dec;
static_rdv_offset <= static_rdv_offset - 1;
rdv_set_delay <= c_dly_rdv_set;
else -- once conplete pass through internal signals
seq_rdata_valid_lat_dec <= seq_rdata_valid_lat_dec_int;
seq_rdata_valid_lat_inc <= seq_rdata_valid_lat_inc_int;
end if;
if rdv_set_delay /= 0 then
rdv_set_delay <= rdv_set_delay - 1;
end if;
end if;
else -- no static setup
seq_rdata_valid_lat_dec <= seq_rdata_valid_lat_dec_int;
seq_rdata_valid_lat_inc <= seq_rdata_valid_lat_inc_int;
end if;
end if;
end process;
-- count number of RDV adjustments for debug
process(clk, rst_n)
begin
if rst_n = '0' then
rdv_adjustments <= 0;
elsif rising_edge(clk) then
if seq_rdata_valid_lat_dec_int = '1' then
rdv_adjustments <= rdv_adjustments + 1;
end if;
if seq_rdata_valid_lat_inc_int = '1' then
if rdv_adjustments = 0 then
report seq_report_prefix & " read data valid adjustment wrap around detected - more increments than decrements" severity failure;
else
rdv_adjustments <= rdv_adjustments - 1;
end if;
end if;
end if;
end process;
-- POA protection
process(clk, rst_n)
begin
if rst_n = '0' then
if SIM_TIME_REDUCTIONS = 1 then
-- setup offset calc
static_poa_offset <= abs(c_static_poa_offset);
dly_poa_inc_dec <= set_inc_dec(c_static_poa_offset);
poa_set_delay <= c_dly_poa_set;
end if;
seq_poa_lat_dec_1x <= (others => '0');
seq_poa_lat_inc_1x <= (others => '0');
elsif rising_edge(clk) then
if SIM_TIME_REDUCTIONS = 1 then -- static setup
if ctl_recalibrate_req = '1' then -- second reset condition
-- setup offset calc
static_poa_offset <= abs(c_static_poa_offset);
dly_poa_inc_dec <= set_inc_dec(c_static_poa_offset);
poa_set_delay <= c_dly_poa_set;
else
if static_poa_offset /= 0 and
poa_set_delay = 0 then
seq_poa_lat_dec_1x <= (others => not(dly_poa_inc_dec));
seq_poa_lat_inc_1x <= (others => dly_poa_inc_dec);
static_poa_offset <= static_poa_offset - 1;
poa_set_delay <= c_dly_poa_set;
else
seq_poa_lat_inc_1x <= seq_poa_lat_inc_1x_int;
seq_poa_lat_dec_1x <= seq_poa_lat_dec_1x_int;
end if;
if poa_set_delay /= 0 then
poa_set_delay <= poa_set_delay - 1;
end if;
end if;
else -- no static setup
seq_poa_lat_inc_1x <= seq_poa_lat_inc_1x_int;
seq_poa_lat_dec_1x <= seq_poa_lat_dec_1x_int;
end if;
end if;
end process;
-- count POA protection adjustments for debug
process(clk, rst_n)
begin
if rst_n = '0' then
poa_adjustments <= 0;
elsif rising_edge(clk) then
if seq_poa_lat_dec_1x_int(0) = '1' then
poa_adjustments <= poa_adjustments + 1;
end if;
if seq_poa_lat_inc_1x_int(0) = '1' then
if poa_adjustments = 0 then
report seq_report_prefix & " postamble adjustment wrap around detected - more increments than decrements" severity failure;
else
poa_adjustments <= poa_adjustments - 1;
end if;
end if;
end if;
end process;
end block;
-- register output fail/success signals - avoiding optimisation out
process(clk, rst_n)
begin
if rst_n = '0' then
ctl_init_fail <= '0';
ctl_init_success <= '0';
elsif rising_edge(clk) then
ctl_init_fail <= ctl_init_fail_int;
ctl_init_success <= ctl_init_success_int;
end if;
end process;
-- ctl_cal_byte_lanes register
-- seq_rdp_reset_req_n - when ctl_recalibrate_req issued
process(clk,rst_n)
begin
if rst_n = '0' then
seq_rdp_reset_req_n <= '0';
ctl_cal_byte_lanes_r <= (others => '1');
elsif rising_edge(clk) then
ctl_cal_byte_lanes_r <= not ctl_cal_byte_lanes;
if ctl_recalibrate_req = '1' then
seq_rdp_reset_req_n <= '0';
else
if ctrl_broadcast.command = cmd_rrp_sweep or
SIM_TIME_REDUCTIONS = 1 then
seq_rdp_reset_req_n <= '1';
end if;
end if;
end if;
end process;
-- register 1t addr/cmd and odt latency outputs
process(clk, rst_n)
begin
if rst_n = '0' then
seq_ac_add_1t_ac_lat_internal <= '0';
seq_ac_add_1t_odt_lat_internal <= '0';
seq_ac_add_2t <= '0';
elsif rising_edge(clk) then
if SIM_TIME_REDUCTIONS = 1 then
seq_ac_add_1t_ac_lat_internal <= c_preset_cal_setup.ac_1t;
seq_ac_add_1t_odt_lat_internal <= c_preset_cal_setup.ac_1t;
else
seq_ac_add_1t_ac_lat_internal <= int_ac_nt(0);
seq_ac_add_1t_odt_lat_internal <= int_ac_nt(0);
end if;
seq_ac_add_2t <= '0';
end if;
end process;
-- override write datapath signal generation
process(dgwb_wdp_override, dgrb_wdp_override, ctl_init_success_int, ctl_init_fail_int)
begin
if ctl_init_success_int = '0' and ctl_init_fail_int = '0' then -- if calibrating
seq_wdp_ovride <= dgwb_wdp_override or dgrb_wdp_override;
else
seq_wdp_ovride <= '0';
end if;
end process;
-- output write/read latency (override with preset values when sim time reductions equals 1
seq_ctl_wlat <= std_logic_vector(to_unsigned(c_preset_cal_setup.wlat,ADV_LAT_WIDTH)) when SIM_TIME_REDUCTIONS = 1 else seq_ctl_wlat_int;
seq_ctl_rlat <= std_logic_vector(to_unsigned(c_preset_cal_setup.rlat,ADV_LAT_WIDTH)) when SIM_TIME_REDUCTIONS = 1 else seq_ctl_rlat_int;
process (clk, rst_n)
begin
if rst_n = '0' then
seq_pll_phs_shift_busy_r <= '0';
seq_pll_phs_shift_busy_ccd <= '0';
elsif rising_edge(clk) then
seq_pll_phs_shift_busy_r <= seq_pll_phs_shift_busy;
seq_pll_phs_shift_busy_ccd <= seq_pll_phs_shift_busy_r;
end if;
end process;
pll_ctrl: block
-- static resync setup variables for sim time reductions
signal static_rst_offset : natural range 0 to 2*PLL_STEPS_PER_CYCLE;
signal phs_shft_busy_1r : std_logic;
signal pll_set_delay : natural range 100 downto 0; -- wait 100 clock cycles for clk to be stable before setting resync phase
-- pll signal generation
signal mmi_pll_active : boolean;
signal seq_pll_phs_shift_busy_ccd_1t : std_logic;
begin
-- multiplex ppl interface between dgrb and mmi blocks
-- plus static setup of rsc phase to a known 'good' condition
process(clk,rst_n)
begin
if rst_n = '0' then
seq_pll_inc_dec_n <= '0';
seq_pll_start_reconfig <= '0';
seq_pll_select <= (others => '0');
dgrb_phs_shft_busy <= '0';
-- static resync setup variables for sim time reductions
if SIM_TIME_REDUCTIONS = 1 then
static_rst_offset <= c_preset_codvw_phase;
else
static_rst_offset <= 0;
end if;
phs_shft_busy_1r <= '0';
pll_set_delay <= 100;
elsif rising_edge(clk) then
dgrb_phs_shft_busy <= '0';
if static_rst_offset /= 0 and -- not finished decrementing
pll_set_delay = 0 and -- initial reset period over
SIM_TIME_REDUCTIONS = 1 then -- in reduce sim time mode (optimse logic away when not in this mode)
seq_pll_inc_dec_n <= '1';
seq_pll_start_reconfig <= '1';
seq_pll_select <= pll_resync_clk_index;
if seq_pll_phs_shift_busy_ccd = '1' then -- no metastability hardening needed in simulation
-- PLL phase shift started - so stop requesting a shift
seq_pll_start_reconfig <= '0';
end if;
if seq_pll_phs_shift_busy_ccd = '0' and phs_shft_busy_1r = '1' then
-- PLL phase shift finished - so proceed to flush the datapath
static_rst_offset <= static_rst_offset - 1;
seq_pll_start_reconfig <= '0';
end if;
phs_shft_busy_1r <= seq_pll_phs_shift_busy_ccd;
else
if ctrl_iram_push.active_block = ret_dgrb then
seq_pll_inc_dec_n <= dgrb_pll_inc_dec_n;
seq_pll_start_reconfig <= dgrb_pll_start_reconfig;
seq_pll_select <= dgrb_pll_select;
dgrb_phs_shft_busy <= seq_pll_phs_shift_busy_ccd;
else
seq_pll_inc_dec_n <= mmi_pll_inc_dec_n;
seq_pll_start_reconfig <= mmi_pll_start_reconfig;
seq_pll_select <= mmi_pll_select;
end if;
end if;
if pll_set_delay /= 0 then
pll_set_delay <= pll_set_delay - 1;
end if;
if ctl_recalibrate_req = '1' then
pll_set_delay <= 100;
end if;
end if;
end process;
-- generate mmi pll signals
process (clk, rst_n)
begin
if rst_n = '0' then
pll_mmi.pll_busy <= '0';
pll_mmi.err <= (others => '0');
mmi_pll_inc_dec_n <= '0';
mmi_pll_start_reconfig <= '0';
mmi_pll_select <= (others => '0');
mmi_pll_active <= false;
seq_pll_phs_shift_busy_ccd_1t <= '0';
elsif rising_edge(clk) then
if mmi_pll_active = true then
pll_mmi.pll_busy <= '1';
else
pll_mmi.pll_busy <= mmi_pll.pll_phs_shft_up_wc or mmi_pll.pll_phs_shft_dn_wc;
end if;
if pll_mmi.err = "00" and dgrb_pll_start_reconfig = '1' then
pll_mmi.err <= "01";
elsif pll_mmi.err = "00" and mmi_pll_active = true then
pll_mmi.err <= "10";
elsif pll_mmi.err = "00" and dgrb_pll_start_reconfig = '1' and mmi_pll_active = true then
pll_mmi.err <= "11";
end if;
if mmi_pll.pll_phs_shft_up_wc = '1' and mmi_pll_active = false then
mmi_pll_inc_dec_n <= '1';
mmi_pll_select <= std_logic_vector(to_unsigned(mmi_pll.pll_phs_shft_phase_sel,mmi_pll_select'length));
mmi_pll_active <= true;
elsif mmi_pll.pll_phs_shft_dn_wc = '1' and mmi_pll_active = false then
mmi_pll_inc_dec_n <= '0';
mmi_pll_select <= std_logic_vector(to_unsigned(mmi_pll.pll_phs_shft_phase_sel,mmi_pll_select'length));
mmi_pll_active <= true;
elsif seq_pll_phs_shift_busy_ccd_1t = '1' and seq_pll_phs_shift_busy_ccd = '0' then
mmi_pll_start_reconfig <= '0';
mmi_pll_active <= false;
elsif mmi_pll_active = true and mmi_pll_start_reconfig = '0' and seq_pll_phs_shift_busy_ccd = '0' then
mmi_pll_start_reconfig <= '1';
elsif seq_pll_phs_shift_busy_ccd_1t = '0' and seq_pll_phs_shift_busy_ccd = '1' then
mmi_pll_start_reconfig <= '0';
end if;
seq_pll_phs_shift_busy_ccd_1t <= seq_pll_phs_shift_busy_ccd;
end if;
end process;
end block; -- pll_ctrl
--synopsys synthesis_off
reporting : block
function pass_or_fail_report( cal_success : in std_logic;
cal_fail : in std_logic
) return string is
begin
if cal_success = '1' and cal_fail = '1' then
return "unknown state cal_fail and cal_success both high";
end if;
if cal_success = '1' then
return "PASSED";
end if;
if cal_fail = '1' then
return "FAILED";
end if;
return "calibration report run whilst sequencer is still calibrating";
end function;
function is_stage_disabled ( stage_name : in string;
stage_dis : in std_logic
) return string is
begin
if stage_dis = '0' then
return "";
else
return stage_name & " stage is disabled" & LF;
end if;
end function;
function disabled_stages ( capabilities : in std_logic_vector
) return string is
begin
return is_stage_disabled("all calibration", c_capabilities(c_hl_css_reg_cal_dis_bit)) &
is_stage_disabled("initialisation", c_capabilities(c_hl_css_reg_phy_initialise_dis_bit)) &
is_stage_disabled("DRAM initialisation", c_capabilities(c_hl_css_reg_init_dram_dis_bit)) &
is_stage_disabled("iram header write", c_capabilities(c_hl_css_reg_write_ihi_dis_bit)) &
is_stage_disabled("burst training pattern write", c_capabilities(c_hl_css_reg_write_btp_dis_bit)) &
is_stage_disabled("more training pattern (MTP) write", c_capabilities(c_hl_css_reg_write_mtp_dis_bit)) &
is_stage_disabled("check MTP pattern alignment calculation", c_capabilities(c_hl_css_reg_read_mtp_dis_bit)) &
is_stage_disabled("read resynch phase reset stage", c_capabilities(c_hl_css_reg_rrp_reset_dis_bit)) &
is_stage_disabled("read resynch phase sweep stage", c_capabilities(c_hl_css_reg_rrp_sweep_dis_bit)) &
is_stage_disabled("read resynch phase seek stage (set phase)", c_capabilities(c_hl_css_reg_rrp_seek_dis_bit)) &
is_stage_disabled("read data valid window setup", c_capabilities(c_hl_css_reg_rdv_dis_bit)) &
is_stage_disabled("postamble calibration", c_capabilities(c_hl_css_reg_poa_dis_bit)) &
is_stage_disabled("write latency timing calc", c_capabilities(c_hl_css_reg_was_dis_bit)) &
is_stage_disabled("advertise read latency", c_capabilities(c_hl_css_reg_adv_rd_lat_dis_bit)) &
is_stage_disabled("advertise write latency", c_capabilities(c_hl_css_reg_adv_wr_lat_dis_bit)) &
is_stage_disabled("write customer mode register settings", c_capabilities(c_hl_css_reg_prep_customer_mr_setup_dis_bit)) &
is_stage_disabled("tracking", c_capabilities(c_hl_css_reg_tracking_dis_bit));
end function;
function ac_nt_report( ac_nt : in std_logic_vector;
dgrb_ctrl_ac_nt_good : in std_logic;
preset_cal_setup : in t_preset_cal) return string
is
variable v_ac_nt : std_logic_vector(0 downto 0);
begin
if SIM_TIME_REDUCTIONS = 1 then
v_ac_nt(0) := preset_cal_setup.ac_1t;
if v_ac_nt(0) = '1' then
return "-- statically set address and command 1T delay: add 1T delay" & LF;
else
return "-- statically set address and command 1T delay: no 1T delay" & LF;
end if;
else
v_ac_nt(0) := ac_nt(0);
if dgrb_ctrl_ac_nt_good = '1' then
if v_ac_nt(0) = '1' then
return "-- chosen address and command 1T delay: add 1T delay" & LF;
else
return "-- chosen address and command 1T delay: no 1T delay" & LF;
end if;
else
return "-- no valid address and command phase chosen (calibration FAILED)" & LF;
end if;
end if;
end function;
function read_resync_report ( codvw_phase : in std_logic_vector;
codvw_size : in std_logic_vector;
ctl_rlat : in std_logic_vector;
ctl_wlat : in std_logic_vector;
preset_cal_setup : in t_preset_cal) return string
is
begin
if SIM_TIME_REDUCTIONS = 1 then
return "-- read resynch phase static setup (no calibration run) report:" & LF &
" -- statically set centre of data valid window phase : " & natural'image(preset_cal_setup.codvw_phase) & LF &
" -- statically set centre of data valid window size : " & natural'image(preset_cal_setup.codvw_size) & LF &
" -- statically set read latency (ctl_rlat) : " & natural'image(preset_cal_setup.rlat) & LF &
" -- statically set write latency (ctl_wlat) : " & natural'image(preset_cal_setup.wlat) & LF &
" -- note: this mode only works for simulation and sets resync phase" & LF &
" to a known good operating condition for no test bench" & LF &
" delays on mem_dq signal" & LF;
else
return "-- PHY read latency (ctl_rlat) is : " & natural'image(to_integer(unsigned(ctl_rlat))) & LF &
"-- address/command to PHY write latency (ctl_wlat) is : " & natural'image(to_integer(unsigned(ctl_wlat))) & LF &
"-- read resynch phase calibration report:" & LF &
" -- calibrated centre of data valid window phase : " & natural'image(to_integer(unsigned(codvw_phase))) & LF &
" -- calibrated centre of data valid window size : " & natural'image(to_integer(unsigned(codvw_size))) & LF;
end if;
end function;
function poa_rdv_adjust_report( poa_adjust : in natural;
rdv_adjust : in natural;
preset_cal_setup : in t_preset_cal) return string
is
begin
if SIM_TIME_REDUCTIONS = 1 then
return "Statically set poa and rdv (adjustments from reset value):" & LF &
"poa 'dec' adjustments = " & natural'image(preset_cal_setup.poa_lat) & LF &
"rdv 'dec' adjustments = " & natural'image(preset_cal_setup.rdv_lat) & LF;
else
return "poa 'dec' adjustments = " & natural'image(poa_adjust) & LF &
"rdv 'dec' adjustments = " & natural'image(rdv_adjust) & LF;
end if;
end function;
function calibration_report ( capabilities : in std_logic_vector;
cal_success : in std_logic;
cal_fail : in std_logic;
ctl_rlat : in std_logic_vector;
ctl_wlat : in std_logic_vector;
codvw_phase : in std_logic_vector;
codvw_size : in std_logic_vector;
ac_nt : in std_logic_vector;
dgrb_ctrl_ac_nt_good : in std_logic;
preset_cal_setup : in t_preset_cal;
poa_adjust : in natural;
rdv_adjust : in natural) return string
is
begin
return seq_report_prefix & " report..." & LF &
"-----------------------------------------------------------------------" & LF &
"-- **** ALTMEMPHY CALIBRATION has completed ****" & LF &
"-- Status:" & LF &
"-- calibration has : " & pass_or_fail_report(cal_success, cal_fail) & LF &
read_resync_report(codvw_phase, codvw_size, ctl_rlat, ctl_wlat, preset_cal_setup) &
ac_nt_report(ac_nt, dgrb_ctrl_ac_nt_good, preset_cal_setup) &
poa_rdv_adjust_report(poa_adjust, rdv_adjust, preset_cal_setup) &
disabled_stages(capabilities) &
"-----------------------------------------------------------------------";
end function;
begin
-- -------------------------------------------------------
-- calibration result reporting
-- -------------------------------------------------------
process(rst_n, clk)
variable v_reports_written : std_logic;
variable v_cal_request_r : std_logic;
variable v_rewrite_report : std_logic;
begin
if rst_n = '0' then
v_reports_written := '0';
v_cal_request_r := '0';
v_rewrite_report := '0';
elsif Rising_Edge(clk) then
if v_reports_written = '0' then
if ctl_init_success_int = '1' or ctl_init_fail_int = '1' then
v_reports_written := '1';
report calibration_report(c_capabilities,
ctl_init_success_int,
ctl_init_fail_int,
seq_ctl_rlat_int,
seq_ctl_wlat_int,
dgrb_mmi.cal_codvw_phase,
dgrb_mmi.cal_codvw_size,
int_ac_nt,
dgrb_ctrl_ac_nt_good,
c_preset_cal_setup,
poa_adjustments,
rdv_adjustments
) severity note;
end if;
end if;
-- if recalibrate request triggered watch for cal success / fail going low and re-trigger report writing
if ctl_recalibrate_req = '1' and v_cal_request_r = '0' then
v_rewrite_report := '1';
end if;
if v_rewrite_report = '1' and ctl_init_success_int = '0' and ctl_init_fail_int = '0' then
v_reports_written := '0';
v_rewrite_report := '0';
end if;
v_cal_request_r := ctl_recalibrate_req;
end if;
end process;
-- -------------------------------------------------------
-- capabilities vector reporting and coarse PHY setup sanity checks
-- -------------------------------------------------------
process(rst_n, clk)
variable reports_written : std_logic;
begin
if rst_n = '0' then
reports_written := '0';
elsif Rising_Edge(clk) then
if reports_written = '0' then
reports_written := '1';
if MEM_IF_MEMTYPE="DDR" or MEM_IF_MEMTYPE="DDR2" or MEM_IF_MEMTYPE="DDR3" then
if DWIDTH_RATIO = 2 or DWIDTH_RATIO = 4 then
report disabled_stages(c_capabilities) severity note;
else
report seq_report_prefix & "unsupported rate for non-levelling AFI PHY sequencer - only full- or half-rate supported" severity warning;
end if;
else
report seq_report_prefix & "memory type " & MEM_IF_MEMTYPE & " is not supported in non-levelling AFI PHY sequencer" severity failure;
end if;
end if;
end if;
end process;
end block; -- reporting
--synopsys synthesis_on
end architecture struct;
| gpl-2.0 |
furrtek/portapack-havoc | hardware/portapack_h1/cpld/20150901/top.vhd | 2 | 4891 | --
-- Copyright (C) 2012 Jared Boone, ShareBrained Technology, Inc.
--
-- This file is part of PortaPack.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; see the file COPYING. If not, write to
-- the Free Software Foundation, Inc., 51 Franklin Street,
-- Boston, MA 02110-1301, USA.
library ieee;
use ieee.std_logic_1164.all;
entity top is
port (
MCU_D : inout std_logic_vector(7 downto 0);
MCU_DIR : in std_logic;
MCU_IO_STBX : in std_logic;
MCU_LCD_WRX : in std_logic;
MCU_ADDR : in std_logic;
MCU_LCD_TE : out std_logic;
MCU_P2_8 : in std_logic;
MCU_LCD_RDX : in std_logic;
TP_U : out std_logic;
TP_D : out std_logic;
TP_L : out std_logic;
TP_R : out std_logic;
SW_SEL : in std_logic;
SW_ROT_A : in std_logic;
SW_ROT_B : in std_logic;
SW_U : in std_logic;
SW_D : in std_logic;
SW_L : in std_logic;
SW_R : in std_logic;
LCD_RESETX : out std_logic;
LCD_RS : out std_logic;
LCD_WRX : out std_logic;
LCD_RDX : out std_logic;
LCD_DB : inout std_logic_vector(15 downto 0);
LCD_TE : in std_logic;
LCD_BACKLIGHT : out std_logic
);
end top;
architecture rtl of top is
signal switches : std_logic_vector(7 downto 0);
type data_direction_t is (from_mcu, to_mcu);
signal data_dir : data_direction_t;
signal mcu_data_out_lcd : std_logic_vector(7 downto 0);
signal mcu_data_out_io : std_logic_vector(7 downto 0);
signal mcu_data_out : std_logic_vector(7 downto 0);
signal mcu_data_in : std_logic_vector(7 downto 0);
signal lcd_data_in : std_logic_vector(15 downto 0);
signal lcd_data_in_mux : std_logic_vector(7 downto 0);
signal lcd_data_out : std_logic_vector(15 downto 0);
signal lcd_data_in_q : std_logic_vector(7 downto 0) := (others => '0');
signal lcd_data_out_q : std_logic_vector(7 downto 0) := (others => '0');
signal tp_q : std_logic_vector(7 downto 0) := (others => '0');
signal lcd_reset_q : std_logic := '1';
signal lcd_backlight_q : std_logic := '0';
signal dir_read : boolean;
signal dir_write : boolean;
signal lcd_read_strobe : boolean;
signal lcd_write_strobe : boolean;
signal lcd_write : boolean;
signal io_strobe : boolean;
signal io_read_strobe : boolean;
signal io_write_strobe : boolean;
begin
-- I/O data
switches <= LCD_TE & not SW_ROT_B & not SW_ROT_A & not SW_SEL & not SW_U & not SW_D & not SW_L & not SW_R;
TP_U <= tp_q(3) when tp_q(7) = '1' else 'Z';
TP_D <= tp_q(2) when tp_q(6) = '1' else 'Z';
TP_L <= tp_q(1) when tp_q(5) = '1' else 'Z';
TP_R <= tp_q(0) when tp_q(4) = '1' else 'Z';
LCD_BACKLIGHT <= lcd_backlight_q;
MCU_LCD_TE <= LCD_TE;
-- State management
data_dir <= to_mcu when MCU_DIR = '1' else from_mcu;
dir_read <= (data_dir = to_mcu);
dir_write <= (data_dir = from_mcu);
io_strobe <= (MCU_IO_STBX = '0');
io_read_strobe <= io_strobe and dir_read;
lcd_read_strobe <= (MCU_LCD_RDX = '0');
lcd_write <= not lcd_read_strobe;
-- LCD interface
LCD_RS <= MCU_ADDR;
LCD_RDX <= MCU_LCD_RDX;
LCD_WRX <= MCU_LCD_WRX;
lcd_data_out <= lcd_data_out_q & mcu_data_in;
lcd_data_in <= LCD_DB;
LCD_DB <= lcd_data_out when lcd_write else (others => 'Z');
LCD_RESETX <= not lcd_reset_q;
-- MCU interface
mcu_data_out_lcd <= lcd_data_in(15 downto 8) when lcd_read_strobe else lcd_data_in_q;
mcu_data_out_io <= switches;
mcu_data_out <= mcu_data_out_io when io_read_strobe else mcu_data_out_lcd;
mcu_data_in <= MCU_D;
MCU_D <= mcu_data_out when dir_read else (others => 'Z');
-- Synchronous behaviors:
-- LCD write: Capture LCD high byte on LCD_WRX falling edge.
process(MCU_LCD_WRX, mcu_data_in)
begin
if falling_edge(MCU_LCD_WRX) then
lcd_data_out_q <= mcu_data_in;
end if;
end process;
-- LCD read: Capture LCD low byte on LCD_RD falling edge.
process(MCU_LCD_RDX, lcd_data_in)
begin
if rising_edge(MCU_LCD_RDX) then
lcd_data_in_q <= lcd_data_in(7 downto 0);
end if;
end process;
-- I/O write (to resistive touch panel): Capture data from
-- MCU and hold on TP pins until further notice.
process(MCU_IO_STBX, dir_write, mcu_data_in, MCU_ADDR)
begin
if rising_edge(MCU_IO_STBX) and dir_write then
if MCU_ADDR = '0' then
tp_q <= mcu_data_in;
else
lcd_reset_q <= mcu_data_in(0);
lcd_backlight_q <= mcu_data_in(7);
end if;
end if;
end process;
end rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_and23_bit.vhd | 4 | 286 | library ieee;
use ieee.numeric_bit.all;
entity and23 is
port (
a_i : in bit_vector (22 downto 0);
b_i : in bit_vector (22 downto 0);
c_o : out bit_vector (22 downto 0)
);
end entity and23;
architecture rtl of and23 is
begin
c_o <= a_i and b_i;
end architecture rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_not104_stdlogic.vhd | 4 | 263 | library ieee;
use ieee.std_logic_1164.all;
entity not104 is
port (
a_i : in std_logic_vector (103 downto 0);
c_o : out std_logic_vector (103 downto 0)
);
end entity not104;
architecture rtl of not104 is
begin
c_o <= not a_i;
end architecture rtl;
| gpl-2.0 |
bmazin/SDR | Projects/FirmwareTests/chan1024/dark_pfb_core10.vhd | 1 | 1559 | library IEEE;
use IEEE.std_logic_1164.all;
entity dark_pfb_core10 is
port (
ce_1: in std_logic;
clk_1: in std_logic;
data0: in std_logic_vector(23 downto 0);
data1: in std_logic_vector(23 downto 0);
data2: in std_logic_vector(23 downto 0);
data3: in std_logic_vector(23 downto 0);
data4: in std_logic_vector(23 downto 0);
data5: in std_logic_vector(23 downto 0);
data6: in std_logic_vector(23 downto 0);
data7: in std_logic_vector(23 downto 0);
skip_pfb: in std_logic;
sync_in: in std_logic;
bin0_t0: out std_logic_vector(35 downto 0);
bin0_t1: out std_logic_vector(35 downto 0);
bin1_t0: out std_logic_vector(35 downto 0);
bin1_t1: out std_logic_vector(35 downto 0);
bin2_t0: out std_logic_vector(35 downto 0);
bin2_t1: out std_logic_vector(35 downto 0);
bin3_t0: out std_logic_vector(35 downto 0);
bin3_t1: out std_logic_vector(35 downto 0);
bin4_t0: out std_logic_vector(35 downto 0);
bin4_t1: out std_logic_vector(35 downto 0);
bin5_t0: out std_logic_vector(35 downto 0);
bin5_t1: out std_logic_vector(35 downto 0);
bin6_t0: out std_logic_vector(35 downto 0);
bin6_t1: out std_logic_vector(35 downto 0);
bin7_t0: out std_logic_vector(35 downto 0);
bin7_t1: out std_logic_vector(35 downto 0);
bin_ctr: out std_logic_vector(7 downto 0);
fft_rdy: out std_logic;
overflow: out std_logic_vector(3 downto 0)
);
end dark_pfb_core10;
architecture structural of dark_pfb_core10 is
begin
end structural;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_concat_func.vhd | 2 | 1437 | -- Copyright (c) 2015 CERN
-- Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- Test for concatenation of function call results.
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity concat_func is
port(in_word : in std_logic_vector(7 downto 0);
out_word : out std_logic_vector(7 downto 0));
end entity concat_func;
architecture test of concat_func is
begin
process(in_word)
variable tmp : unsigned(7 downto 0);
variable int : integer;
begin
tmp := unsigned(in_word);
int := to_integer(tmp);
out_word <= in_word(7 downto 6) & std_logic_vector(to_unsigned(int, 3)) & std_logic_vector(resize(tmp, 3));
end process;
end architecture test;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_umul23_stdlogic.vhd | 4 | 310 | library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity umul23 is
port (
a_i : in unsigned (22 downto 0);
b_i : in unsigned (22 downto 0);
c_o : out unsigned (45 downto 0)
);
end entity umul23;
architecture rtl of umul23 is
begin
c_o <= a_i * b_i;
end architecture rtl;
| gpl-2.0 |
zebarnabe/music-keyboard-vhdl | src/main/keyMatrixLED.vhd | 1 | 1146 | ----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 01:10:16 07/01/2015
-- Design Name:
-- Module Name: keyMatrixLED - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
--use IEEE.NUMERIC_STD.ALL;
-- Uncomment the following library declaration if instantiating
-- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity keyMatrixLED is
Port ( keyMatrix : in STD_LOGIC_VECTOR (31 downto 0);
led : out STD_LOGIC_VECTOR (7 downto 0));
end keyMatrixLED;
architecture Behavioral of keyMatrixLED is
begin
led <= (keyMatrix(31 downto 24) xor keyMatrix(23 downto 16) xor keyMatrix(15 downto 8) xor keyMatrix(7 downto 0));
end Behavioral;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_prefix_array.vhd | 3 | 1689 | -- Copyright (c) 2015 CERN
-- Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- Example to test prefix for VTypeArray (and using function as index).
library ieee;
use ieee.std_logic_1164.all;
entity prefix_array is
port(sel_word : in std_logic_vector(1 downto 0);
out_word : out integer);
end entity prefix_array;
architecture test of prefix_array is
type t_timeouts is
record
a : integer;
b : integer;
end record;
type t_timeouts_table is array (natural range <>) of t_timeouts;
constant c_TIMEOUTS_TABLE : t_timeouts_table(3 downto 0) :=
(0 => (a => 1, b => 2),
1 => (a => 3, b => 4),
2 => (a => 5, b => 6),
3 => (a => 7, b => 8));
begin
process(sel_word)
begin
out_word <= to_unsigned((c_TIMEOUTS_TABLE(to_integer(unsigned(sel_word))).a), 32);
end process;
end architecture test;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_umul23_bit.vhd | 4 | 281 | library ieee;
use ieee.numeric_bit.all;
entity umul23 is
port (
a_i : in unsigned (22 downto 0);
b_i : in unsigned (22 downto 0);
c_o : out unsigned (45 downto 0)
);
end entity umul23;
architecture rtl of umul23 is
begin
c_o <= a_i * b_i;
end architecture rtl;
| gpl-2.0 |
huxiaolei/xapp1078_2014.4_zybo | design/work/project_2/project_2.srcs/sources_1/ipshared/xilinx.com/lib_cdc_v1_0/d3fab4a1/hdl/src/vhdl/cdc_sync.vhd | 21 | 47317 |
--Generic Help
--C_CDC_TYPE : Defines the type of CDC needed
-- 0 means pulse synchronizer. Used to transfer one clock pulse
-- from prmry domain to scndry domain.
-- 1 means level synchronizer. Used to transfer level signal.
-- 2 means level synchronizer with ack. Used to transfer level
-- signal. Input signal should change only when prmry_ack is detected
--
--C_FLOP_INPUT : when set to 1 adds one flop stage to the input prmry_in signal
-- Set to 0 when incoming signal is purely floped signal.
--
--C_RESET_STATE : Generally sync flops need not have resets. However, in some cases
-- it might be needed.
-- 0 means reset not needed for sync flops
-- 1 means reset needed for sync flops. i
-- In this case prmry_resetn should be in prmry clock,
-- while scndry_reset should be in scndry clock.
--
--C_SINGLE_BIT : CDC should normally be done for single bit signals only.
-- However, based on design buses can also be CDC'ed.
-- 0 means it is a bus. In this case input be connected to prmry_vect_in.
-- Output is on scndry_vect_out.
-- 1 means it is a single bit. In this case input be connected to prmry_in.
-- Output is on scndry_out.
--
--C_VECTOR_WIDTH : defines the size of bus. This is irrelevant when C_SINGLE_BIT = 1
--
--C_MTBF_STAGES : Defines the number of sync stages needed. Allowed values are 0 to 6.
-- Value of 0, 1 is allowed only for level CDC.
-- Min value for Pulse CDC is 2
--
--Whenever this file is used following XDC constraint has to be added
-- set_false_path -to [get_pins -hier *cdc_to*/D]
--IO Ports
--
-- prmry_aclk : clock of originating domain (source domain)
-- prmry_resetn : sync reset of originating clock domain (source domain)
-- prmry_in : input signal bit. This should be a pure flop output without
-- any combi logic. This is source.
-- prmry_vect_in : bus signal. From Source domain.
-- prmry_ack : Ack signal, valid for one clock period, in prmry_aclk domain.
-- Used only when C_CDC_TYPE = 2
-- scndry_aclk : destination clock.
-- scndry_resetn : sync reset of destination domain
-- scndry_out : sync'ed output in destination domain. Single bit.
-- scndry_vect_out : sync'ed output in destination domain. bus.
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use ieee.std_logic_misc.all;
library unisim;
use unisim.vcomponents.FDR;
entity cdc_sync is
generic (
C_CDC_TYPE : integer range 0 to 2 := 1 ;
-- 0 is pulse synch
-- 1 is level synch
-- 2 is ack based level sync
C_RESET_STATE : integer range 0 to 1 := 0 ;
-- 0 is reset not needed
-- 1 is reset needed
C_SINGLE_BIT : integer range 0 to 1 := 1 ;
-- 0 is bus input
-- 1 is single bit input
C_FLOP_INPUT : integer range 0 to 1 := 0 ;
C_VECTOR_WIDTH : integer range 0 to 32 := 32 ;
C_MTBF_STAGES : integer range 0 to 6 := 2
-- Vector Data witdth
);
port (
prmry_aclk : in std_logic ; --
prmry_resetn : in std_logic ; --
prmry_in : in std_logic ; --
prmry_vect_in : in std_logic_vector --
(C_VECTOR_WIDTH - 1 downto 0) ; --
prmry_ack : out std_logic ;
--
scndry_aclk : in std_logic ; --
scndry_resetn : in std_logic ; --
--
-- Primary to Secondary Clock Crossing --
scndry_out : out std_logic ; --
--
scndry_vect_out : out std_logic_vector --
(C_VECTOR_WIDTH - 1 downto 0) --
);
end cdc_sync;
-------------------------------------------------------------------------------
-- Architecture
-------------------------------------------------------------------------------
architecture implementation of cdc_sync is
attribute DowngradeIPIdentifiedWarnings : string;
attribute DowngradeIPIdentifiedWarnings of implementation : architecture is "yes";
--attribute DONT_TOUCH : STRING;
--attribute KEEP : STRING;
--attribute DONT_TOUCH of implementation : architecture is "yes";
signal prmry_resetn1 : std_logic := '0';
signal scndry_resetn1 : std_logic := '0';
signal prmry_reset2 : std_logic := '0';
signal scndry_reset2 : std_logic := '0';
--attribute KEEP of prmry_resetn1 : signal is "true";
--attribute KEEP of scndry_resetn1 : signal is "true";
-------------------------------------------------------------------------------
-- Functions
-------------------------------------------------------------------------------
-- No Functions Declared
-------------------------------------------------------------------------------
-- Constants Declarations
-------------------------------------------------------------------------------
-- No Constants Declared
-------------------------------------------------------------------------------
-- Begin architecture logic
-------------------------------------------------------------------------------
begin
HAS_RESET : if C_RESET_STATE = 1 generate
begin
prmry_resetn1 <= prmry_resetn;
scndry_resetn1 <= scndry_resetn;
end generate HAS_RESET;
HAS_NO_RESET : if C_RESET_STATE = 0 generate
begin
prmry_resetn1 <= '1';
scndry_resetn1 <= '1';
end generate HAS_NO_RESET;
prmry_reset2 <= not prmry_resetn1;
scndry_reset2 <= not scndry_resetn1;
-- Generate PULSE clock domain crossing
GENERATE_PULSE_P_S_CDC_OPEN_ENDED : if C_CDC_TYPE = 0 generate
-- Primary to Secondary
signal s_out_d1_cdc_to : std_logic := '0';
--attribute DONT_TOUCH of s_out_d1_cdc_to : signal is "true";
signal s_out_d2 : std_logic := '0';
signal s_out_d3 : std_logic := '0';
signal s_out_d4 : std_logic := '0';
signal s_out_d5 : std_logic := '0';
signal s_out_d6 : std_logic := '0';
signal s_out_d7 : std_logic := '0';
signal s_out_re : std_logic := '0';
signal prmry_in_xored : std_logic := '0';
signal p_in_d1_cdc_from : std_logic := '0';
-----------------------------------------------------------------------------
-- ATTRIBUTE Declarations
-----------------------------------------------------------------------------
-- Prevent x-propagation on clock-domain crossing register
ATTRIBUTE async_reg : STRING;
ATTRIBUTE async_reg OF REG_P_IN2_cdc_to : label IS "true";
ATTRIBUTE async_reg OF P_IN_CROSS2SCNDRY_s_out_d2 : label IS "true";
ATTRIBUTE async_reg OF P_IN_CROSS2SCNDRY_s_out_d3 : label IS "true";
ATTRIBUTE async_reg OF P_IN_CROSS2SCNDRY_s_out_d4 : label IS "true";
ATTRIBUTE async_reg OF P_IN_CROSS2SCNDRY_s_out_d5 : label IS "true";
ATTRIBUTE async_reg OF P_IN_CROSS2SCNDRY_s_out_d6 : label IS "true";
ATTRIBUTE async_reg OF P_IN_CROSS2SCNDRY_s_out_d7 : label IS "true";
begin
--*****************************************************************************
--** Asynchronous Pulse Clock Crossing **
--** PRIMARY TO SECONDARY OPEN-ENDED **
--*****************************************************************************
scndry_vect_out <= (others => '0');
prmry_ack <= '0';
prmry_in_xored <= prmry_in xor p_in_d1_cdc_from;
--------------------------------------REG_P_IN : process(prmry_aclk)
-------------------------------------- begin
-------------------------------------- if(prmry_aclk'EVENT and prmry_aclk ='1')then
-------------------------------------- if(prmry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
-------------------------------------- p_in_d1_cdc_from <= '0';
-------------------------------------- else
-------------------------------------- p_in_d1_cdc_from <= prmry_in_xored;
-------------------------------------- end if;
-------------------------------------- end if;
-------------------------------------- end process REG_P_IN;
REG_P_IN_cdc_from : component FDR
generic map(INIT => '0'
)port map (
Q => p_in_d1_cdc_from,
C => prmry_aclk,
D => prmry_in_xored,
R => prmry_reset2
);
REG_P_IN2_cdc_to : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d1_cdc_to,
C => scndry_aclk,
D => p_in_d1_cdc_from,
R => scndry_reset2
);
------------------------------------ P_IN_CROSS2SCNDRY : process(scndry_aclk)
------------------------------------ begin
------------------------------------ if(scndry_aclk'EVENT and scndry_aclk ='1')then
------------------------------------ if(scndry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
------------------------------------ s_out_d2 <= '0';
------------------------------------ s_out_d3 <= '0';
------------------------------------ s_out_d4 <= '0';
------------------------------------ s_out_d5 <= '0';
------------------------------------ s_out_d6 <= '0';
------------------------------------ s_out_d7 <= '0';
------------------------------------ scndry_out <= '0';
------------------------------------ else
------------------------------------ s_out_d2 <= s_out_d1_cdc_to;
------------------------------------ s_out_d3 <= s_out_d2;
------------------------------------ s_out_d4 <= s_out_d3;
------------------------------------ s_out_d5 <= s_out_d4;
------------------------------------ s_out_d6 <= s_out_d5;
------------------------------------ s_out_d7 <= s_out_d6;
------------------------------------ scndry_out <= s_out_re;
------------------------------------ end if;
------------------------------------ end if;
------------------------------------ end process P_IN_CROSS2SCNDRY;
P_IN_CROSS2SCNDRY_s_out_d2 : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d2,
C => scndry_aclk,
D => s_out_d1_cdc_to,
R => scndry_reset2
);
P_IN_CROSS2SCNDRY_s_out_d3 : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d3,
C => scndry_aclk,
D => s_out_d2,
R => scndry_reset2
);
P_IN_CROSS2SCNDRY_s_out_d4 : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d4,
C => scndry_aclk,
D => s_out_d3,
R => scndry_reset2
);
P_IN_CROSS2SCNDRY_s_out_d5 : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d5,
C => scndry_aclk,
D => s_out_d4,
R => scndry_reset2
);
P_IN_CROSS2SCNDRY_s_out_d6 : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d6,
C => scndry_aclk,
D => s_out_d5,
R => scndry_reset2
);
P_IN_CROSS2SCNDRY_s_out_d7 : component FDR
generic map(INIT => '0'
)port map (
Q => s_out_d7,
C => scndry_aclk,
D => s_out_d6,
R => scndry_reset2
);
P_IN_CROSS2SCNDRY_scndry_out : component FDR
generic map(INIT => '0'
)port map (
Q => scndry_out,
C => scndry_aclk,
D => s_out_re,
R => scndry_reset2
);
MTBF_2 : if C_MTBF_STAGES = 2 generate
begin
s_out_re <= s_out_d2 xor s_out_d3;
end generate MTBF_2;
MTBF_3 : if C_MTBF_STAGES = 3 generate
begin
s_out_re <= s_out_d3 xor s_out_d4;
end generate MTBF_3;
MTBF_4 : if C_MTBF_STAGES = 4 generate
begin
s_out_re <= s_out_d4 xor s_out_d5;
end generate MTBF_4;
MTBF_5 : if C_MTBF_STAGES = 5 generate
begin
s_out_re <= s_out_d5 xor s_out_d6;
end generate MTBF_5;
MTBF_6 : if C_MTBF_STAGES = 6 generate
begin
s_out_re <= s_out_d6 xor s_out_d7;
end generate MTBF_6;
-- Feed secondary pulse out
end generate GENERATE_PULSE_P_S_CDC_OPEN_ENDED;
-- Generate LEVEL clock domain crossing with reset state = 0
GENERATE_LEVEL_P_S_CDC : if C_CDC_TYPE = 1 generate
begin
-- Primary to Secondary
SINGLE_BIT : if C_SINGLE_BIT = 1 generate
signal p_level_in_d1_cdc_from : std_logic := '0';
signal p_level_in_int : std_logic := '0';
signal s_level_out_d1_cdc_to : std_logic := '0';
--attribute DONT_TOUCH of s_level_out_d1_cdc_to : signal is "true";
signal s_level_out_d2 : std_logic := '0';
signal s_level_out_d3 : std_logic := '0';
signal s_level_out_d4 : std_logic := '0';
signal s_level_out_d5 : std_logic := '0';
signal s_level_out_d6 : std_logic := '0';
-----------------------------------------------------------------------------
-- ATTRIBUTE Declarations
-----------------------------------------------------------------------------
-- Prevent x-propagation on clock-domain crossing register
ATTRIBUTE async_reg : STRING;
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_IN_cdc_to : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d2 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d3 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d4 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d5 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d6 : label IS "true";
begin
--*****************************************************************************
--** Asynchronous Level Clock Crossing **
--** PRIMARY TO SECONDARY **
--*****************************************************************************
-- register is scndry to provide clean ff output to clock crossing logic
scndry_vect_out <= (others => '0');
prmry_ack <= '0';
INPUT_FLOP : if C_FLOP_INPUT = 1 generate
begin
---------------------------------- REG_PLEVEL_IN : process(prmry_aclk)
---------------------------------- begin
---------------------------------- if(prmry_aclk'EVENT and prmry_aclk ='1')then
---------------------------------- if(prmry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
---------------------------------- p_level_in_d1_cdc_from <= '0';
---------------------------------- else
---------------------------------- p_level_in_d1_cdc_from <= prmry_in;
---------------------------------- end if;
---------------------------------- end if;
---------------------------------- end process REG_PLEVEL_IN;
REG_PLEVEL_IN_cdc_from : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_in_d1_cdc_from,
C => prmry_aclk,
D => prmry_in,
R => prmry_reset2
);
p_level_in_int <= p_level_in_d1_cdc_from;
end generate INPUT_FLOP;
NO_INPUT_FLOP : if C_FLOP_INPUT = 0 generate
begin
p_level_in_int <= prmry_in;
end generate NO_INPUT_FLOP;
CROSS_PLEVEL_IN2SCNDRY_IN_cdc_to : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d1_cdc_to,
C => scndry_aclk,
D => p_level_in_int,
R => scndry_reset2
);
------------------------------ CROSS_PLEVEL_IN2SCNDRY : process(scndry_aclk)
------------------------------ begin
------------------------------ if(scndry_aclk'EVENT and scndry_aclk ='1')then
------------------------------ if(scndry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
------------------------------ s_level_out_d2 <= '0';
------------------------------ s_level_out_d3 <= '0';
------------------------------ s_level_out_d4 <= '0';
------------------------------ s_level_out_d5 <= '0';
------------------------------ s_level_out_d6 <= '0';
------------------------------ else
------------------------------ s_level_out_d2 <= s_level_out_d1_cdc_to;
------------------------------ s_level_out_d3 <= s_level_out_d2;
------------------------------ s_level_out_d4 <= s_level_out_d3;
------------------------------ s_level_out_d5 <= s_level_out_d4;
------------------------------ s_level_out_d6 <= s_level_out_d5;
------------------------------ end if;
------------------------------ end if;
------------------------------ end process CROSS_PLEVEL_IN2SCNDRY;
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d2 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d2,
C => scndry_aclk,
D => s_level_out_d1_cdc_to,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d3 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d3,
C => scndry_aclk,
D => s_level_out_d2,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d4 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d4,
C => scndry_aclk,
D => s_level_out_d3,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d5 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d5,
C => scndry_aclk,
D => s_level_out_d4,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d6 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d6,
C => scndry_aclk,
D => s_level_out_d5,
R => scndry_reset2
);
MTBF_L1 : if C_MTBF_STAGES = 1 generate
begin
scndry_out <= s_level_out_d1_cdc_to;
end generate MTBF_L1;
MTBF_L2 : if C_MTBF_STAGES = 2 generate
begin
scndry_out <= s_level_out_d2;
end generate MTBF_L2;
MTBF_L3 : if C_MTBF_STAGES = 3 generate
begin
scndry_out <= s_level_out_d3;
end generate MTBF_L3;
MTBF_L4 : if C_MTBF_STAGES = 4 generate
begin
scndry_out <= s_level_out_d4;
end generate MTBF_L4;
MTBF_L5 : if C_MTBF_STAGES = 5 generate
begin
scndry_out <= s_level_out_d5;
end generate MTBF_L5;
MTBF_L6 : if C_MTBF_STAGES = 6 generate
begin
scndry_out <= s_level_out_d6;
end generate MTBF_L6;
end generate SINGLE_BIT;
MULTI_BIT : if C_SINGLE_BIT = 0 generate
signal p_level_in_bus_int : std_logic_vector (C_VECTOR_WIDTH - 1 downto 0);
signal p_level_in_bus_d1_cdc_from : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
signal s_level_out_bus_d1_cdc_to : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
--attribute DONT_TOUCH of s_level_out_bus_d1_cdc_to : signal is "true";
signal s_level_out_bus_d1_cdc_tig : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
signal s_level_out_bus_d2 : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
signal s_level_out_bus_d3 : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
signal s_level_out_bus_d4 : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
signal s_level_out_bus_d5 : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
signal s_level_out_bus_d6 : std_logic_vector(C_VECTOR_WIDTH - 1 downto 0);
-----------------------------------------------------------------------------
-- ATTRIBUTE Declarations
-----------------------------------------------------------------------------
-- Prevent x-propagation on clock-domain crossing register
ATTRIBUTE async_reg : STRING;
-----------------ATTRIBUTE async_reg OF s_level_out_bus_d2 : SIGNAL IS "true";
-----------------ATTRIBUTE async_reg OF s_level_out_bus_d3 : SIGNAL IS "true";
-----------------ATTRIBUTE async_reg OF s_level_out_bus_d4 : SIGNAL IS "true";
-----------------ATTRIBUTE async_reg OF s_level_out_bus_d5 : SIGNAL IS "true";
-----------------ATTRIBUTE async_reg OF s_level_out_bus_d6 : SIGNAL IS "true";
begin
--*****************************************************************************
--** Asynchronous Level Clock Crossing **
--** PRIMARY TO SECONDARY **
--*****************************************************************************
-- register is scndry to provide clean ff output to clock crossing logic
scndry_out <= '0';
prmry_ack <= '0';
INPUT_FLOP_BUS : if C_FLOP_INPUT = 1 generate
begin
----------------------------------- REG_PLEVEL_IN : process(prmry_aclk)
----------------------------------- begin
----------------------------------- if(prmry_aclk'EVENT and prmry_aclk ='1')then
----------------------------------- if(prmry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
----------------------------------- p_level_in_bus_d1_cdc_from <= (others => '0');
----------------------------------- else
----------------------------------- p_level_in_bus_d1_cdc_from <= prmry_vect_in;
----------------------------------- end if;
----------------------------------- end if;
----------------------------------- end process REG_PLEVEL_IN;
FOR_REG_PLEVEL_IN: for i in 0 to (C_VECTOR_WIDTH-1) generate
begin
REG_PLEVEL_IN_p_level_in_bus_d1_cdc_from : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_in_bus_d1_cdc_from (i),
C => prmry_aclk,
D => prmry_vect_in (i),
R => prmry_reset2
);
end generate FOR_REG_PLEVEL_IN;
p_level_in_bus_int <= p_level_in_bus_d1_cdc_from;
end generate INPUT_FLOP_BUS;
NO_INPUT_FLOP_BUS : if C_FLOP_INPUT = 0 generate
begin
p_level_in_bus_int <= prmry_vect_in;
end generate NO_INPUT_FLOP_BUS;
FOR_IN_cdc_to: for i in 0 to (C_VECTOR_WIDTH-1) generate
ATTRIBUTE async_reg OF CROSS2_PLEVEL_IN2SCNDRY_IN_cdc_to : label IS "true";
begin
CROSS2_PLEVEL_IN2SCNDRY_IN_cdc_to : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_bus_d1_cdc_to (i),
C => scndry_aclk,
D => p_level_in_bus_int (i),
R => scndry_reset2
);
end generate FOR_IN_cdc_to;
----------------------------------------- CROSS_PLEVEL_IN2SCNDRY : process(scndry_aclk)
----------------------------------------- begin
----------------------------------------- if(scndry_aclk'EVENT and scndry_aclk ='1')then
----------------------------------------- if(scndry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
----------------------------------------- s_level_out_bus_d2 <= (others => '0');
----------------------------------------- s_level_out_bus_d3 <= (others => '0');
----------------------------------------- s_level_out_bus_d4 <= (others => '0');
----------------------------------------- s_level_out_bus_d5 <= (others => '0');
----------------------------------------- s_level_out_bus_d6 <= (others => '0');
----------------------------------------- else
----------------------------------------- s_level_out_bus_d2 <= s_level_out_bus_d1_cdc_to;
----------------------------------------- s_level_out_bus_d3 <= s_level_out_bus_d2;
----------------------------------------- s_level_out_bus_d4 <= s_level_out_bus_d3;
----------------------------------------- s_level_out_bus_d5 <= s_level_out_bus_d4;
----------------------------------------- s_level_out_bus_d6 <= s_level_out_bus_d5;
----------------------------------------- end if;
----------------------------------------- end if;
----------------------------------------- end process CROSS_PLEVEL_IN2SCNDRY;
FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d2: for i in 0 to (C_VECTOR_WIDTH-1) generate
ATTRIBUTE async_reg OF CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d2 : label IS "true";
begin
CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d2 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_bus_d2 (i),
C => scndry_aclk,
D => s_level_out_bus_d1_cdc_to (i),
R => scndry_reset2
);
end generate FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d2;
FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d3: for i in 0 to (C_VECTOR_WIDTH-1) generate
ATTRIBUTE async_reg OF CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d3 : label IS "true";
begin
CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d3 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_bus_d3 (i),
C => scndry_aclk,
D => s_level_out_bus_d2 (i),
R => scndry_reset2
);
end generate FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d3;
FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d4: for i in 0 to (C_VECTOR_WIDTH-1) generate
ATTRIBUTE async_reg OF CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d4 : label IS "true";
begin
CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d4 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_bus_d4 (i),
C => scndry_aclk,
D => s_level_out_bus_d3 (i),
R => scndry_reset2
);
end generate FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d4;
FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d5: for i in 0 to (C_VECTOR_WIDTH-1) generate
ATTRIBUTE async_reg OF CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d5 : label IS "true";
begin
CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d5 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_bus_d5 (i),
C => scndry_aclk,
D => s_level_out_bus_d4 (i),
R => scndry_reset2
);
end generate FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d5;
FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d6: for i in 0 to (C_VECTOR_WIDTH-1) generate
ATTRIBUTE async_reg OF CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d6 : label IS "true";
begin
CROSS2_PLEVEL_IN2SCNDRY_s_level_out_bus_d6 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_bus_d6 (i),
C => scndry_aclk,
D => s_level_out_bus_d5 (i),
R => scndry_reset2
);
end generate FOR_CROSS_PLEVEL_IN2SCNDRY_bus_d6;
MTBF_L1 : if C_MTBF_STAGES = 1 generate
begin
scndry_vect_out <= s_level_out_bus_d1_cdc_to;
end generate MTBF_L1;
MTBF_L2 : if C_MTBF_STAGES = 2 generate
begin
scndry_vect_out <= s_level_out_bus_d2;
end generate MTBF_L2;
MTBF_L3 : if C_MTBF_STAGES = 3 generate
begin
scndry_vect_out <= s_level_out_bus_d3;
end generate MTBF_L3;
MTBF_L4 : if C_MTBF_STAGES = 4 generate
begin
scndry_vect_out <= s_level_out_bus_d4;
end generate MTBF_L4;
MTBF_L5 : if C_MTBF_STAGES = 5 generate
begin
scndry_vect_out <= s_level_out_bus_d5;
end generate MTBF_L5;
MTBF_L6 : if C_MTBF_STAGES = 6 generate
begin
scndry_vect_out <= s_level_out_bus_d6;
end generate MTBF_L6;
end generate MULTI_BIT;
end generate GENERATE_LEVEL_P_S_CDC;
GENERATE_LEVEL_ACK_P_S_CDC : if C_CDC_TYPE = 2 generate
-- Primary to Secondary
signal p_level_in_d1_cdc_from : std_logic := '0';
signal p_level_in_int : std_logic := '0';
signal s_level_out_d1_cdc_to : std_logic := '0';
--attribute DONT_TOUCH of s_level_out_d1_cdc_to : signal is "true";
signal s_level_out_d2 : std_logic := '0';
signal s_level_out_d3 : std_logic := '0';
signal s_level_out_d4 : std_logic := '0';
signal s_level_out_d5 : std_logic := '0';
signal s_level_out_d6 : std_logic := '0';
signal p_level_out_d1_cdc_to : std_logic := '0';
--attribute DONT_TOUCH of p_level_out_d1_cdc_to : signal is "true";
signal p_level_out_d2 : std_logic := '0';
signal p_level_out_d3 : std_logic := '0';
signal p_level_out_d4 : std_logic := '0';
signal p_level_out_d5 : std_logic := '0';
signal p_level_out_d6 : std_logic := '0';
signal p_level_out_d7 : std_logic := '0';
signal scndry_out_int : std_logic := '0';
signal prmry_pulse_ack : std_logic := '0';
-----------------------------------------------------------------------------
-- ATTRIBUTE Declarations
-----------------------------------------------------------------------------
-- Prevent x-propagation on clock-domain crossing register
ATTRIBUTE async_reg : STRING;
ATTRIBUTE async_reg OF CROSS3_PLEVEL_IN2SCNDRY_IN_cdc_to : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d2 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d3 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d4 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d5 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_IN2SCNDRY_s_level_out_d6 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d1_cdc_to : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d2 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d3 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d4 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d5 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d6 : label IS "true";
ATTRIBUTE async_reg OF CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d7 : label IS "true";
begin
--*****************************************************************************
--** Asynchronous Level Clock Crossing **
--** PRIMARY TO SECONDARY **
--*****************************************************************************
-- register is scndry to provide clean ff output to clock crossing logic
scndry_vect_out <= (others => '0');
INPUT_FLOP : if C_FLOP_INPUT = 1 generate
begin
------------------------------------------ REG_PLEVEL_IN : process(prmry_aclk)
------------------------------------------ begin
------------------------------------------ if(prmry_aclk'EVENT and prmry_aclk ='1')then
------------------------------------------ if(prmry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
------------------------------------------ p_level_in_d1_cdc_from <= '0';
------------------------------------------ else
------------------------------------------ p_level_in_d1_cdc_from <= prmry_in;
------------------------------------------ end if;
------------------------------------------ end if;
------------------------------------------ end process REG_PLEVEL_IN;
REG_PLEVEL_IN_cdc_from : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_in_d1_cdc_from,
C => prmry_aclk,
D => prmry_in,
R => prmry_reset2
);
p_level_in_int <= p_level_in_d1_cdc_from;
end generate INPUT_FLOP;
NO_INPUT_FLOP : if C_FLOP_INPUT = 0 generate
begin
p_level_in_int <= prmry_in;
end generate NO_INPUT_FLOP;
CROSS3_PLEVEL_IN2SCNDRY_IN_cdc_to : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d1_cdc_to,
C => scndry_aclk,
D => p_level_in_int,
R => scndry_reset2
);
------------------------------------------------ CROSS_PLEVEL_IN2SCNDRY : process(scndry_aclk)
------------------------------------------------ begin
------------------------------------------------ if(scndry_aclk'EVENT and scndry_aclk ='1')then
------------------------------------------------ if(scndry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
------------------------------------------------ s_level_out_d2 <= '0';
------------------------------------------------ s_level_out_d3 <= '0';
------------------------------------------------ s_level_out_d4 <= '0';
------------------------------------------------ s_level_out_d5 <= '0';
------------------------------------------------ s_level_out_d6 <= '0';
------------------------------------------------ else
------------------------------------------------ s_level_out_d2 <= s_level_out_d1_cdc_to;
------------------------------------------------ s_level_out_d3 <= s_level_out_d2;
------------------------------------------------ s_level_out_d4 <= s_level_out_d3;
------------------------------------------------ s_level_out_d5 <= s_level_out_d4;
------------------------------------------------ s_level_out_d6 <= s_level_out_d5;
------------------------------------------------ end if;
------------------------------------------------ end if;
------------------------------------------------ end process CROSS_PLEVEL_IN2SCNDRY;
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d2 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d2,
C => scndry_aclk,
D => s_level_out_d1_cdc_to,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d3 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d3,
C => scndry_aclk,
D => s_level_out_d2,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d4 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d4,
C => scndry_aclk,
D => s_level_out_d3,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d5 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d5,
C => scndry_aclk,
D => s_level_out_d4,
R => scndry_reset2
);
CROSS_PLEVEL_IN2SCNDRY_s_level_out_d6 : component FDR
generic map(INIT => '0'
)port map (
Q => s_level_out_d6,
C => scndry_aclk,
D => s_level_out_d5,
R => scndry_reset2
);
--------------------------------------------------- CROSS_PLEVEL_SCNDRY2PRMRY : process(prmry_aclk)
--------------------------------------------------- begin
--------------------------------------------------- if(prmry_aclk'EVENT and prmry_aclk ='1')then
--------------------------------------------------- if(prmry_resetn1 = '0') then -- and C_RESET_STATE = 1)then
--------------------------------------------------- p_level_out_d1_cdc_to <= '0';
--------------------------------------------------- p_level_out_d2 <= '0';
--------------------------------------------------- p_level_out_d3 <= '0';
--------------------------------------------------- p_level_out_d4 <= '0';
--------------------------------------------------- p_level_out_d5 <= '0';
--------------------------------------------------- p_level_out_d6 <= '0';
--------------------------------------------------- p_level_out_d7 <= '0';
--------------------------------------------------- prmry_ack <= '0';
--------------------------------------------------- else
--------------------------------------------------- p_level_out_d1_cdc_to <= scndry_out_int;
--------------------------------------------------- p_level_out_d2 <= p_level_out_d1_cdc_to;
--------------------------------------------------- p_level_out_d3 <= p_level_out_d2;
--------------------------------------------------- p_level_out_d4 <= p_level_out_d3;
--------------------------------------------------- p_level_out_d5 <= p_level_out_d4;
--------------------------------------------------- p_level_out_d6 <= p_level_out_d5;
--------------------------------------------------- p_level_out_d7 <= p_level_out_d6;
--------------------------------------------------- prmry_ack <= prmry_pulse_ack;
--------------------------------------------------- end if;
--------------------------------------------------- end if;
--------------------------------------------------- end process CROSS_PLEVEL_SCNDRY2PRMRY;
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d1_cdc_to : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d1_cdc_to,
C => prmry_aclk,
D => scndry_out_int,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d2 : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d2,
C => prmry_aclk,
D => p_level_out_d1_cdc_to,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d3 : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d3,
C => prmry_aclk,
D => p_level_out_d2,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d4 : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d4,
C => prmry_aclk,
D => p_level_out_d3,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d5 : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d5,
C => prmry_aclk,
D => p_level_out_d4,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d6 : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d6,
C => prmry_aclk,
D => p_level_out_d5,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_p_level_out_d7 : component FDR
generic map(INIT => '0'
)port map (
Q => p_level_out_d7,
C => prmry_aclk,
D => p_level_out_d6,
R => prmry_reset2
);
CROSS_PLEVEL_SCNDRY2PRMRY_prmry_ack : component FDR
generic map(INIT => '0'
)port map (
Q => prmry_ack,
C => prmry_aclk,
D => prmry_pulse_ack,
R => prmry_reset2
);
MTBF_L2 : if C_MTBF_STAGES = 2 or C_MTBF_STAGES = 1 generate
begin
scndry_out_int <= s_level_out_d2;
--prmry_pulse_ack <= p_level_out_d3 xor p_level_out_d2;
prmry_pulse_ack <= (not p_level_out_d3) and p_level_out_d2;
end generate MTBF_L2;
MTBF_L3 : if C_MTBF_STAGES = 3 generate
begin
scndry_out_int <= s_level_out_d3;
--prmry_pulse_ack <= p_level_out_d4 xor p_level_out_d3;
prmry_pulse_ack <= (not p_level_out_d4) and p_level_out_d3;
end generate MTBF_L3;
MTBF_L4 : if C_MTBF_STAGES = 4 generate
begin
scndry_out_int <= s_level_out_d4;
--prmry_pulse_ack <= p_level_out_d5 xor p_level_out_d4;
prmry_pulse_ack <= (not p_level_out_d5) and p_level_out_d4;
end generate MTBF_L4;
MTBF_L5 : if C_MTBF_STAGES = 5 generate
begin
scndry_out_int <= s_level_out_d5;
--prmry_pulse_ack <= p_level_out_d6 xor p_level_out_d5;
prmry_pulse_ack <= (not p_level_out_d6) and p_level_out_d5;
end generate MTBF_L5;
MTBF_L6 : if C_MTBF_STAGES = 6 generate
begin
scndry_out_int <= s_level_out_d6;
--prmry_pulse_ack <= p_level_out_d7 xor p_level_out_d6;
prmry_pulse_ack <= (not p_level_out_d7) and p_level_out_d6;
end generate MTBF_L6;
scndry_out <= scndry_out_int;
end generate GENERATE_LEVEL_ACK_P_S_CDC;
end implementation;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_subtypes.vhd | 2 | 1354 | -- Copyright (c) 2016 CERN
-- Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- Test for subtype definitions.
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_bit.all;
use work.vhdl_subtypes_pkg.all;
entity vhdl_subtypes is
port( a : out int_type_const;
b : out int_type;
c : out int_type_downto;
d : out time_type;
e : out uns_type_const
);
end vhdl_subtypes;
architecture test of vhdl_subtypes is
begin
process
begin
a <= 1;
b <= 2;
c <= 3;
d <= 4 s;
e <= 5;
wait;
end process;
end test;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_ssub23_bit.vhd | 4 | 275 | library ieee;
use ieee.numeric_bit.all;
entity ssub23 is
port (
a_i : in signed (22 downto 0);
b_i : in signed (22 downto 0);
c_o : out signed (22 downto 0)
);
end entity ssub23;
architecture rtl of ssub23 is
begin
c_o <= a_i - b_i;
end architecture rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/varray1.vhd | 4 | 4463 | library ieee;
use ieee.std_logic_1164.all;
package diq_pkg is
component Add_Synth
generic (n: integer);
port (a,b: in std_logic_vector (n-1 downto 0);
cin: in std_logic;
comp : out std_logic;
sum : out std_logic_vector (n-1 downto 0) );
end component;
component Inc_Synth
generic (n: integer);
port (a: in std_logic_vector (n-1 downto 0);
sum : out std_logic_vector (n-1 downto 0) );
end component;
end package;
library ieee;
use ieee.std_logic_1164.all;
use work.diq_pkg.all;
entity diq_array is
generic (width: integer := 8; size: integer := 7);
port (clk,reset: in std_logic;
din,bin,xin: in std_logic_vector (width-1 downto 0);
lin: in std_logic_vector (2 downto 0);
lout: out std_logic_vector (2 downto 0);
dout,bout,xout: out std_logic_vector (width-1 downto 0) );
end diq_array;
architecture systolic of diq_array is
component diq
generic (n: integer );
port (clk,reset: in std_logic;
lin: in std_logic_vector (2 downto 0);
din,bin,xin: in std_logic_vector (n-1 downto 0);
lout: out std_logic_vector (2 downto 0);
dout,bout,xout: out std_logic_vector (n-1 downto 0) );
end component;
type path is array (0 to size) of std_logic_vector (width-1 downto 0);
type l_path is array (0 to size) of std_logic_vector (2 downto 0);
signal x_path, d_path, b_path: path;
signal l_int: l_path;
begin
gen_arrays: for i in 0 to size-1 generate
each_array: diq generic map (n => width)
port map (clk => clk, din => d_path(i), bin => b_path(i), reset => reset,
xin => x_path(i), lin => l_int(i),
dout => d_path(i+1), bout => b_path(i+1),
xout => x_path(i+1), lout => l_int(i+1) );
end generate;
d_path(0) <= din;
b_path(0) <= bin;
x_path(0) <= xin;
l_int(0) <= lin;
dout <= d_path(size);
bout <= b_path(size);
xout <= x_path(size);
lout <= l_int(size);
end systolic;
library ieee;
use ieee.std_logic_1164.all;
use work.diq_pkg.all;
entity diq is
generic (n: integer := 8);
port (clk, reset: in std_logic;
din,bin,xin: in std_logic_vector (n-1 downto 0);
lin: in std_logic_vector (2 downto 0);
dout,bout,xout: out std_logic_vector (n-1 downto 0);
lout: out std_logic_vector (2 downto 0) );
end diq;
architecture diq_wordlevel of diq is
signal b_int, d_int, x_int, x_inv: std_logic_vector (n-1 downto 0);
signal l_int, l_inc: std_logic_vector (2 downto 0);
signal sel: std_logic;
signal zero,uno: std_logic;
begin
d_reg: process(clk,reset)
begin
if reset = '1' then
d_int <= (others => '0');
elsif (clk'event and clk = '1') then
d_int <= din;
end if;
end process;
l_reg: process(clk,reset)
begin
if reset = '1' then
l_int <= (others => '0');
elsif (clk'event and clk = '1') then
l_int <= lin;
end if;
end process;
b_reg: process(clk,reset)
begin
if reset = '1' then
b_int <= (others => '0');
elsif (clk'event and clk = '1') then
b_int <= bin;
end if;
end process;
x_reg: process(clk,reset)
begin
if reset = '1' then
x_int <= (others => '0');
elsif (clk'event and clk = '1') then
x_int <= xin;
end if;
end process;
zero <= '0';
uno <= '1';
addition: Add_Synth generic map (n => n)
port map (a => b_int, b => d_int, cin => zero, comp => open, sum => bout);
x_inv <= not x_int;
comparison: Add_Synth generic map (n => n)
port map (a => b_int, b => x_inv, cin => uno, comp => sel, sum => open);
incrementer: Inc_Synth generic map (n => 3)
port map (a => l_int, sum => l_inc);
-- outputs
lout <= l_inc when (sel = '1') else l_int;
dout <= d_int;
xout <= x_int;
end diq_wordlevel;
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
entity Inc_Synth is
generic (n: integer := 8);
port (a: in std_logic_vector (n-1 downto 0);
sum: out std_logic_vector (n-1 downto 0)
);
end Inc_Synth;
architecture compact_inc of Inc_Synth is
signal cx: std_logic_vector (n downto 0);
begin
cx <= ('0' & a) + '1';
sum <= cx (n-1 downto 0);
end compact_inc;
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
entity Add_Synth is
generic (n: integer := 8);
port (a, b: in std_logic_vector (n-1 downto 0);
sum: out std_logic_vector (n-1 downto 0);
cin: in std_logic;
comp: out std_logic );
end Add_Synth;
architecture compact of Add_Synth is
signal cx: std_logic_vector (n downto 0);
begin
cx <= ('0' & a) + ('0' & b) + cin;
sum <= cx (n-1 downto 0);
comp <= cx(n-1);
end compact;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_or104_stdlogic.vhd | 4 | 309 | library ieee;
use ieee.std_logic_1164.all;
entity or104 is
port (
a_i : in std_logic_vector (103 downto 0);
b_i : in std_logic_vector (103 downto 0);
c_o : out std_logic_vector (103 downto 0)
);
end entity or104;
architecture rtl of or104 is
begin
c_o <= a_i or b_i;
end architecture rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_wait.vhd | 2 | 1480 | -- Copyright (c) 2015 CERN
-- @author Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- 'wait on' & 'wait until' test
library ieee;
use ieee.std_logic_1164.all;
entity vhdl_wait is
port(a : in std_logic_vector(1 downto 0);
b : out std_logic_vector(1 downto 0));
end vhdl_wait;
architecture test of vhdl_wait is
begin
process begin
report "final wait test";
wait;
end process;
process begin
wait on a(0);
report "wait 1 completed";
-- acknowledge wait 1
b(0) <= '1';
end process;
process begin
wait until(a(1) = '1' and a(1)'event);
report "wait 2 completed";
-- acknowledge wait 2
b(1) <= '1';
end process;
end test;
| gpl-2.0 |
huxiaolei/xapp1078_2014.4_zybo | design/work/project_2/project_2.srcs/sources_1/ipshared/xilinx.com/irq_gen_v1_1/f141c1dc/hdl/vhdl/pselect_f.vhd | 2 | 12603 | -------------------------------------------------------------------------------
-- $Id: pselect_f.vhd,v 1.1.4.1 2010/09/14 22:35:47 dougt Exp $
-------------------------------------------------------------------------------
-- pselect_f.vhd - entity/architecture pair
-------------------------------------------------------------------------------
--
-- *************************************************************************
-- ** **
-- ** DISCLAIMER OF LIABILITY **
-- ** **
-- ** This text/file contains proprietary, confidential **
-- ** information of Xilinx, Inc., is distributed under **
-- ** license from Xilinx, Inc., and may be used, copied **
-- ** and/or disclosed only pursuant to the terms of a valid **
-- ** license agreement with Xilinx, Inc. Xilinx hereby **
-- ** grants you a license to use this text/file solely for **
-- ** design, simulation, implementation and creation of **
-- ** design files limited to Xilinx devices or technologies. **
-- ** Use with non-Xilinx devices or technologies is expressly **
-- ** prohibited and immediately terminates your license unless **
-- ** covered by a separate agreement. **
-- ** **
-- ** Xilinx is providing this design, code, or information **
-- ** "as-is" solely for use in developing programs and **
-- ** solutions for Xilinx devices, with no obligation on the **
-- ** part of Xilinx to provide support. By providing this design, **
-- ** code, or information as one possible implementation of **
-- ** this feature, application or standard, Xilinx is making no **
-- ** representation that this implementation is free from any **
-- ** claims of infringement. You are responsible for obtaining **
-- ** any rights you may require for your implementation. **
-- ** Xilinx expressly disclaims any warranty whatsoever with **
-- ** respect to the adequacy of the implementation, including **
-- ** but not limited to any warranties or representations that this **
-- ** implementation is free from claims of infringement, implied **
-- ** warranties of merchantability or fitness for a particular **
-- ** purpose. **
-- ** **
-- ** Xilinx products are not intended for use in life support **
-- ** appliances, devices, or systems. Use in such applications is **
-- ** expressly prohibited. **
-- ** **
-- ** Any modifications that are made to the Source Code are **
-- ** done at the user?s sole risk and will be unsupported. **
-- ** The Xilinx Support Hotline does not have access to source **
-- ** code and therefore cannot answer specific questions related **
-- ** to source HDL. The Xilinx Hotline support of original source **
-- ** code IP shall only address issues and questions related **
-- ** to the standard Netlist version of the core (and thus **
-- ** indirectly, the original core source). **
-- ** **
-- ** Copyright (c) 2008-2010 Xilinx, Inc. All rights reserved. **
-- ** **
-- ** This copyright and support notice must be retained as part **
-- ** of this text at all times. **
-- ** **
-- *************************************************************************
--
-------------------------------------------------------------------------------
-- Filename: pselect_f.vhd
--
-- Description:
-- (Note: At least as early as I.31, XST implements a carry-
-- chain structure for most decoders when these are coded in
-- inferrable VHLD. An example of such code can be seen
-- below in the "INFERRED_GEN" Generate Statement.
--
-- -> New code should not need to instantiate pselect-type
-- components.
--
-- -> Existing code can be ported to Virtex5 and later by
-- replacing pselect instances by pselect_f instances.
-- As long as the C_FAMILY parameter is not included
-- in the Generic Map, an inferred implementation
-- will result.
--
-- -> If the designer wishes to force an explicit carry-
-- chain implementation, pselect_f can be used with
-- the C_FAMILY parameter set to the target
-- Xilinx FPGA family.
-- )
--
-- Parameterizeable peripheral select (address decode).
-- AValid qualifier comes in on Carry In at bottom
-- of carry chain.
--
--
-- VHDL-Standard: VHDL'93
-------------------------------------------------------------------------------
-- Structure: pselect_f.vhd
-- family_support.vhd
--
-------------------------------------------------------------------------------
-- History:
-- Vaibhav & FLO 05/26/06 First Version
--
-- DET 1/17/2008 v3_00_a
-- ~~~~~~
-- - Changed proc_common library version to v3_00_a
-- - Incorporated new disclaimer header
-- ^^^^^^
--
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- Naming Conventions:
-- active low signals: "*_n"
-- clock signals: "clk", "clk_div#", "clk_#x"
-- reset signals: "rst", "rst_n"
-- generics: "C_*"
-- user defined types: "*_TYPE"
-- state machine next state: "*_ns"
-- state machine current state: "*_cs"
-- combinatorial signals: "*_com"
-- pipelined or register delay signals: "*_d#"
-- counter signals: "*cnt*"
-- clock enable signals: "*_ce"
-- internal version of output port "*_i"
-- device pins: "*_pin"
-- ports: - Names begin with Uppercase
-- processes: "*_PROCESS"
-- component instantiations: "<ENTITY_>I_<#|FUNC>
-------------------------------------------------------------------------------
library IEEE;
use IEEE.std_logic_1164.all;
library unisim;
use unisim.all;
library my_ipif;
use my_ipif.family_support.native_lut_size;
use my_ipif.family_support.supported;
use my_ipif.family_support.u_muxcy;
-----------------------------------------------------------------------------
-- Entity section
-----------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- Definition of Generics:
-- C_AB -- number of address bits to decode
-- C_AW -- width of address bus
-- C_BAR -- base address of peripheral (peripheral select
-- is asserted when the C_AB most significant
-- address bits match the C_AB most significant
-- C_BAR bits
-- Definition of Ports:
-- A -- address input
-- AValid -- address qualifier
-- CS -- peripheral select
-------------------------------------------------------------------------------
entity pselect_f is
generic (
C_AB : integer := 9;
C_AW : integer := 32;
C_BAR : std_logic_vector;
C_FAMILY : string := "nofamily"
);
port (
A : in std_logic_vector(0 to C_AW-1);
AValid : in std_logic;
CS : out std_logic
);
end entity pselect_f;
-----------------------------------------------------------------------------
-- Architecture section
-----------------------------------------------------------------------------
architecture imp of pselect_f is
component MUXCY is
port (
O : out std_logic;
CI : in std_logic;
DI : in std_logic;
S : in std_logic
);
end component MUXCY;
constant NLS : natural := native_lut_size(C_FAMILY);
constant USE_INFERRED : boolean := not supported(C_FAMILY, u_MUXCY)
or NLS=0 -- LUT not supported.
or C_AB <= NLS; -- Just one LUT
-- needed.
-----------------------------------------------------------------------------
-- C_BAR may not be indexed from 0 and may not be ascending;
-- BAR recasts C_BAR to have these properties.
-----------------------------------------------------------------------------
constant BAR : std_logic_vector(0 to C_BAR'length-1) := C_BAR;
type bo2sl_type is array (boolean) of std_logic;
constant bo2sl : bo2sl_type := (false => '0', true => '1');
function min(i, j: integer) return integer is
begin
if i<j then return i; else return j; end if;
end;
begin
------------------------------------------------------------------------------
-- Check that the generics are valid.
------------------------------------------------------------------------------
-- synthesis translate_off
assert (C_AB <= C_BAR'length) and (C_AB <= C_AW)
report "pselect_f generic error: " &
"(C_AB <= C_BAR'length) and (C_AB <= C_AW)" &
" does not hold."
severity failure;
-- synthesis translate_on
------------------------------------------------------------------------------
-- Build a behavioral decoder
------------------------------------------------------------------------------
INFERRED_GEN : if (USE_INFERRED = TRUE ) generate
begin
XST_WA:if C_AB > 0 generate
CS <= AValid when A(0 to C_AB-1) = BAR (0 to C_AB-1) else
'0' ;
end generate XST_WA;
PASS_ON_GEN:if C_AB = 0 generate
CS <= AValid ;
end generate PASS_ON_GEN;
end generate INFERRED_GEN;
------------------------------------------------------------------------------
-- Build a structural decoder using the fast carry chain
------------------------------------------------------------------------------
GEN_STRUCTURAL_A : if (USE_INFERRED = FALSE ) generate
constant NUM_LUTS : integer := (C_AB+(NLS-1))/NLS;
signal lut_out : std_logic_vector(0 to NUM_LUTS); -- XST workaround
signal carry_chain : std_logic_vector(0 to NUM_LUTS);
begin
carry_chain(NUM_LUTS) <= AValid; -- Initialize start of carry chain.
CS <= carry_chain(0); -- Assign end of carry chain to output.
XST_WA: if NUM_LUTS > 0 generate -- workaround for XST
begin
GEN_DECODE: for i in 0 to NUM_LUTS-1 generate
constant NI : natural := i;
constant BTL : positive := min(NLS, C_AB-NI*NLS);-- num Bits This LUT
begin
lut_out(i) <= bo2sl(A(NI*NLS to NI*NLS+BTL-1) = -- LUT
BAR(NI*NLS to NI*NLS+BTL-1));
MUXCY_I: component MUXCY -- MUXCY
port map (
O => carry_chain(i),
CI => carry_chain(i+1),
DI => '0',
S => lut_out(i)
);
end generate GEN_DECODE;
end generate XST_WA;
end generate GEN_STRUCTURAL_A;
end imp;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_string.vhd | 2 | 1324 | -- Copyright (c) 2015 CERN
-- Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- Test string escaping in VHDL.
library ieee;
use ieee.std_logic_1164.all;
entity vhdl_string is
port (start : in std_logic);
end entity vhdl_string;
architecture test of vhdl_string is
begin
process (start)
variable test_str : string(1 to 4) := "VHDL";
begin
report "";
report """";
report "test";
report test_str;
report ("brackets test");
report ((("multiple brackets test")));
report """quotation "" marks "" test""";
end process;
end architecture test;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_report.vhd | 3 | 2134 | -- Copyright (c) 2015 CERN
-- Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- Report & assert tests.
library ieee;
use ieee.std_logic_1164.all;
use work.vhdl_report_pkg.all;
entity vhdl_report is
port (start_test : in std_logic);
end vhdl_report;
architecture test of vhdl_report is
begin
process(start_test)
begin
if(start_test = '1') then
-- Report without severity specified, by default it is NOTE
report "normal report";
-- Report with severity specified
-- should continue execution when severity != FAILURE
report "report with severity"
severity ERROR;
-- Assert, no report, no severity specified, by default it is ERROR
assert false;
-- Assert with report, no severity specified, by default it is ERROR
assert 1 = 0
report "assert with report";
-- Assert without report, severity specified
-- should continue execution when severity != FAILURE
assert 1 = 2
severity NOTE;
-- Assert with report and severity specified
assert false
report "assert with report & severity"
severity FAILURE; -- FAILURE causes program to stop
report "this should never be shown";
end if;
end process;
end architecture test;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/forgen.vhd | 4 | 1259 | library ieee;
use ieee.std_logic_1164.all;
-- This is a simple test of the initialization assignment for
-- signals. We also let a generic into the test.
entity test is
generic (width : integer := 4);
port (clk : in std_logic;
src0, src1 : in std_logic_vector (width-1 downto 0);
dst : out std_logic_vector (width-1 downto 0));
end test;
library ieee;
use ieee.std_logic_1164.all;
entity reg_xor is
port (clk : in std_logic;
src0, src1 : in std_logic;
dst : out std_logic);
end reg_xor;
architecture operation of test is
component reg_xor
port (clk : in std_logic;
src0, src1 : in std_logic;
dst : out std_logic);
end component;
begin
vec: for idx in width-1 downto 0 generate
slice: reg_xor port map (clk => clk,
src0 => src0(idx),
src1 => src1(idx),
dst => dst(idx));
end generate vec;
end operation;
architecture operation of reg_xor is
signal tmp : std_logic;
begin
tmp <= src0 xor src1;
step: process (clk)
begin -- process step
if clk'event and clk = '1' then -- rising clock edge
dst <= tmp;
end if;
end process step;
end operation;
| gpl-2.0 |
zebarnabe/music-keyboard-vhdl | src/main/periodMap.vhd | 1 | 3773 | ----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 02:37:35 10/24/2015
-- Design Name:
-- Module Name: periodMap - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
use IEEE.NUMERIC_STD.ALL;
-- Uncomment the following library declaration if instantiating
-- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity periodMap is
Port ( clk : in STD_LOGIC;
key : in STD_LOGIC_VECTOR (31 downto 0);
sig : out STD_LOGIC_VECTOR (7 downto 0));
end periodMap;
architecture Behavioral of periodMap is
component voiceSynth
port ( clk : in STD_LOGIC;
enable : in STD_LOGIC;
period : in unsigned (15 downto 0);
sig : out STD_LOGIC_VECTOR (7 downto 0));
end component;
type vectorPeriod is array (natural range <>) of unsigned(15 downto 0);
constant keyPeriodMap : vectorPeriod(0 to 31) := (
to_unsigned(17896, 16),
to_unsigned(16892, 16),
to_unsigned(15944, 16),
to_unsigned(15049, 16),
to_unsigned(14204, 16),
to_unsigned(13407, 16),
to_unsigned(12654, 16),
to_unsigned(11944, 16),
to_unsigned(11274, 16),
to_unsigned(10641, 16),
to_unsigned(10044, 16),
to_unsigned(9480, 16),
to_unsigned(8948, 16),
to_unsigned(8446, 16),
to_unsigned(7972, 16),
to_unsigned(7524, 16),
to_unsigned(7102, 16),
to_unsigned(6703, 16),
to_unsigned(6327, 16),
to_unsigned(5972, 16),
to_unsigned(5637, 16),
to_unsigned(5320, 16),
to_unsigned(5022, 16),
to_unsigned(4740, 16),
to_unsigned(4474, 16),
to_unsigned(4223, 16),
to_unsigned(3986, 16),
to_unsigned(3762, 16),
to_unsigned(3551, 16),
to_unsigned(3351, 16),
to_unsigned(3163, 16),
to_unsigned(2986, 16)
);
type vectorSignal is array (natural range <>) of std_logic_vector(7 downto 0);
signal signalMap : vectorSignal(31 downto 0);
signal sigOut : std_logic_vector(12 downto 0);
begin
GEN_REG:
for I in 0 to 31 generate
voiceSynthInstance: voiceSynth port map (
clk => clk,
enable => key(I),
period => keyPeriodMap(I),
sig => signalMap(I)
);
end generate GEN_REG;
sigOut <= std_logic_vector(
resize(unsigned(signalMap(0)),13)+
resize(unsigned(signalMap(1)),13)+
resize(unsigned(signalMap(2)),13)+
resize(unsigned(signalMap(3)),13)+
resize(unsigned(signalMap(4)),13)+
resize(unsigned(signalMap(5)),13)+
resize(unsigned(signalMap(6)),13)+
resize(unsigned(signalMap(7)),13)+
resize(unsigned(signalMap(8)),13)+
resize(unsigned(signalMap(9)),13)+
resize(unsigned(signalMap(10)),13)+
resize(unsigned(signalMap(11)),13)+
resize(unsigned(signalMap(12)),13)+
resize(unsigned(signalMap(13)),13)+
resize(unsigned(signalMap(14)),13)+
resize(unsigned(signalMap(15)),13)+
resize(unsigned(signalMap(16)),13)+
resize(unsigned(signalMap(17)),13)+
resize(unsigned(signalMap(18)),13)+
resize(unsigned(signalMap(19)),13)+
resize(unsigned(signalMap(20)),13)+
resize(unsigned(signalMap(21)),13)+
resize(unsigned(signalMap(22)),13)+
resize(unsigned(signalMap(23)),13)+
resize(unsigned(signalMap(24)),13)+
resize(unsigned(signalMap(25)),13)+
resize(unsigned(signalMap(26)),13)+
resize(unsigned(signalMap(27)),13)+
resize(unsigned(signalMap(28)),13)+
resize(unsigned(signalMap(29)),13)+
resize(unsigned(signalMap(30)),13)+
resize(unsigned(signalMap(31)),13));
sig <= sigOut(12 downto 5);
end Behavioral;
| gpl-2.0 |
huxiaolei/xapp1078_2014.4_zybo | design/work/project_2/project_2.srcs/sources_1/ipshared/xilinx.com/irq_gen_v1_1/f141c1dc/hdl/vhdl/proc_common_pkg.vhd | 4 | 18741 | -------------------------------------------------------------------------------
-- $Id: proc_common_pkg.vhd,v 1.1.4.46 2010/10/28 01:14:32 ostlerf Exp $
-------------------------------------------------------------------------------
-- Processor Common Library Package
-------------------------------------------------------------------------------
--
-- *************************************************************************
-- ** **
-- ** DISCLAIMER OF LIABILITY **
-- ** **
-- ** This text/file contains proprietary, confidential **
-- ** information of Xilinx, Inc., is distributed under **
-- ** license from Xilinx, Inc., and may be used, copied **
-- ** and/or disclosed only pursuant to the terms of a valid **
-- ** license agreement with Xilinx, Inc. Xilinx hereby **
-- ** grants you a license to use this text/file solely for **
-- ** design, simulation, implementation and creation of **
-- ** design files limited to Xilinx devices or technologies. **
-- ** Use with non-Xilinx devices or technologies is expressly **
-- ** prohibited and immediately terminates your license unless **
-- ** covered by a separate agreement. **
-- ** **
-- ** Xilinx is providing this design, code, or information **
-- ** "as-is" solely for use in developing programs and **
-- ** solutions for Xilinx devices, with no obligation on the **
-- ** part of Xilinx to provide support. By providing this design, **
-- ** code, or information as one possible implementation of **
-- ** this feature, application or standard, Xilinx is making no **
-- ** representation that this implementation is free from any **
-- ** claims of infringement. You are responsible for obtaining **
-- ** any rights you may require for your implementation. **
-- ** Xilinx expressly disclaims any warranty whatsoever with **
-- ** respect to the adequacy of the implementation, including **
-- ** but not limited to any warranties or representations that this **
-- ** implementation is free from claims of infringement, implied **
-- ** warranties of merchantability or fitness for a particular **
-- ** purpose. **
-- ** **
-- ** Xilinx products are not intended for use in life support **
-- ** appliances, devices, or systems. Use in such applications is **
-- ** expressly prohibited. **
-- ** **
-- ** Any modifications that are made to the Source Code are **
-- ** done at the users sole risk and will be unsupported. **
-- ** The Xilinx Support Hotline does not have access to source **
-- ** code and therefore cannot answer specific questions related **
-- ** to source HDL. The Xilinx Hotline support of original source **
-- ** code IP shall only address issues and questions related **
-- ** to the standard Netlist version of the core (and thus **
-- ** indirectly, the original core source). **
-- ** **
-- ** Copyright (c) 2001-2010 Xilinx, Inc. All rights reserved. **
-- ** **
-- ** This copyright and support notice must be retained as part **
-- ** of this text at all times. **
-- ** **
-- *************************************************************************
--
-------------------------------------------------------------------------------
-- Filename: proc_common_pkg.vhd
-- Version: v1.21b
-- Description: This file contains the constants and functions used in the
-- processor common library components.
--
-------------------------------------------------------------------------------
-- Structure:
--
-------------------------------------------------------------------------------
-- Author: ALS
-- History:
-- ALS 09/12/01 -- Created from opb_arb_pkg.vhd
--
-- ALS 09/21/01
-- ^^^^^^
-- Added pwr function. Replaced log2 function with one that works for XST.
-- ~~~~~~
--
-- ALS 12/07/01
-- ^^^^^^
-- Added Addr_bits function.
-- ~~~~~~
-- ALS 01/31/02
-- ^^^^^^
-- Added max2 function.
-- ~~~~~~
-- FLO 02/22/02
-- ^^^^^^
-- Extended input argument range of log2 function to 2^30. Also, added
-- a check that the argument does not exceed this value; a failure
-- assertion violation is generated if it does not.
-- ~~~~~~
-- FLO 08/31/06
-- ^^^^^^
-- Removed type TARGET_FAMILY_TYPE and functions Get_Reg_File_Area and
-- Get_RLOC_Name. These objects are not used. Further, the functions
-- produced misleading warnings (CR419886, CR419898).
-- ~~~~~~
-- FLO 05/25/07
-- ^^^^^^
-- -Reimplemented function pad_power2 to correct error when the input
-- argument is 1. (fixes CR 303469)
-- -Added function clog2(x), which returns the integer ceiling of the
-- base 2 logarithm of x. This function can be used in place of log2
-- when wishing to avoid the XST warning, "VHDL Assertion Statement
-- with non constant condition is ignored".
-- ~~~~~~
--
-- DET 1/17/2008 v3_00_a
-- ~~~~~~
-- - Incorporated new disclaimer header
-- ^^^^^^
--
-- DET 5/8/2009 v3_00_a for EDK L.SP2
-- ~~~~~~
-- - Per CR520627
-- - Added synthesis translate_off/on constructs to the log2 function
-- around the assertion statement. This removes a repetative XST Warning
-- in SRP files about a non-constant assertion check.
-- ^^^^^^
-- FL0 20/27/2010
-- ^^^^^^
-- Removed 42 TBD comment, again. (CR 568493)
-- ~~~~~~
--
-------------------------------------------------------------------------------
-- Naming Conventions:
-- active low signals: "*_n"
-- clock signals: "clk", "clk_div#", "clk_#x"
-- reset signals: "rst", "rst_n"
-- generics: "C_*"
-- user defined types: "*_TYPE"
-- state machine next state: "*_ns"
-- state machine current state: "*_cs"
-- combinatorial signals: "*_com"
-- pipelined or register delay signals: "*_d#"
-- counter signals: "*cnt*"
-- clock enable signals: "*_ce"
-- internal version of output port "*_i"
-- device pins: "*_pin"
-- ports: - Names begin with Uppercase
-- processes: "*_PROCESS"
-- component instantiations: "<ENTITY_>I_<#|FUNC>
-------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
-- need conversion function to convert reals/integers to std logic vectors
use ieee.std_logic_arith.conv_std_logic_vector;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
package proc_common_pkg is
-------------------------------------------------------------------------------
-- Type Declarations
-------------------------------------------------------------------------------
type CHAR_TO_INT_TYPE is array (character) of integer;
-- type INTEGER_ARRAY_TYPE is array (natural range <>) of integer;
-- Type SLV64_ARRAY_TYPE is array (natural range <>) of std_logic_vector(0 to 63);
-------------------------------------------------------------------------------
-- Function and Procedure Declarations
-------------------------------------------------------------------------------
function max2 (num1, num2 : integer) return integer;
function min2 (num1, num2 : integer) return integer;
function Addr_Bits(x,y : std_logic_vector) return integer;
function clog2(x : positive) return natural;
function pad_power2 ( in_num : integer ) return integer;
function pad_4 ( in_num : integer ) return integer;
function log2(x : natural) return integer;
function pwr(x: integer; y: integer) return integer;
function String_To_Int(S : string) return integer;
function itoa (int : integer) return string;
-------------------------------------------------------------------------------
-- Constant Declarations
-------------------------------------------------------------------------------
-- the RESET_ACTIVE constant should denote the logic level of an active reset
constant RESET_ACTIVE : std_logic := '1';
-- table containing strings representing hex characters for conversion to
-- integers
constant STRHEX_TO_INT_TABLE : CHAR_TO_INT_TYPE :=
('0' => 0,
'1' => 1,
'2' => 2,
'3' => 3,
'4' => 4,
'5' => 5,
'6' => 6,
'7' => 7,
'8' => 8,
'9' => 9,
'A'|'a' => 10,
'B'|'b' => 11,
'C'|'c' => 12,
'D'|'d' => 13,
'E'|'e' => 14,
'F'|'f' => 15,
others => -1);
end proc_common_pkg;
package body proc_common_pkg is
-------------------------------------------------------------------------------
-- Function Definitions
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- Function max2
--
-- This function returns the greater of two numbers.
-------------------------------------------------------------------------------
function max2 (num1, num2 : integer) return integer is
begin
if num1 >= num2 then
return num1;
else
return num2;
end if;
end function max2;
-------------------------------------------------------------------------------
-- Function min2
--
-- This function returns the lesser of two numbers.
-------------------------------------------------------------------------------
function min2 (num1, num2 : integer) return integer is
begin
if num1 <= num2 then
return num1;
else
return num2;
end if;
end function min2;
-------------------------------------------------------------------------------
-- Function Addr_bits
--
-- function to convert an address range (base address and an upper address)
-- into the number of upper address bits needed for decoding a device
-- select signal. will handle slices and big or little endian
-------------------------------------------------------------------------------
function Addr_Bits(x,y : std_logic_vector) return integer is
variable addr_xor : std_logic_vector(x'range);
variable count : integer := 0;
begin
assert x'length = y'length and (x'ascending xnor y'ascending)
report "Addr_Bits: arguments are not the same type"
severity ERROR;
addr_xor := x xor y;
for i in x'range
loop
if addr_xor(i) = '1' then return count;
end if;
count := count + 1;
end loop;
return x'length;
end Addr_Bits;
--------------------------------------------------------------------------------
-- Function clog2 - returns the integer ceiling of the base 2 logarithm of x,
-- i.e., the least integer greater than or equal to log2(x).
--------------------------------------------------------------------------------
function clog2(x : positive) return natural is
variable r : natural := 0;
variable rp : natural := 1; -- rp tracks the value 2**r
begin
while rp < x loop -- Termination condition T: x <= 2**r
-- Loop invariant L: 2**(r-1) < x
r := r + 1;
if rp > integer'high - rp then exit; end if; -- If doubling rp overflows
-- the integer range, the doubled value would exceed x, so safe to exit.
rp := rp + rp;
end loop;
-- L and T <-> 2**(r-1) < x <= 2**r <-> (r-1) < log2(x) <= r
return r; --
end clog2;
-------------------------------------------------------------------------------
-- Function pad_power2
--
-- This function returns the next power of 2 from the input number. If the
-- input number is a power of 2, this function returns the input number.
--
-- This function is used to round up the number of masters to the next power
-- of 2 if the number of masters is not already a power of 2.
--
-- Input argument 0, which is not a power of two, is accepted and returns 0.
-- Input arguments less than 0 are not allowed.
-------------------------------------------------------------------------------
--
function pad_power2 (in_num : integer ) return integer is
begin
if in_num = 0 then
return 0;
else
return 2**(clog2(in_num));
end if;
end pad_power2;
-------------------------------------------------------------------------------
-- Function pad_4
--
-- This function returns the next multiple of 4 from the input number. If the
-- input number is a multiple of 4, this function returns the input number.
--
-------------------------------------------------------------------------------
--
function pad_4 (in_num : integer ) return integer is
variable out_num : integer;
begin
out_num := (((in_num-1)/4) + 1)*4;
return out_num;
end pad_4;
-------------------------------------------------------------------------------
-- Function log2 -- returns number of bits needed to encode x choices
-- x = 0 returns 0
-- x = 1 returns 0
-- x = 2 returns 1
-- x = 4 returns 2, etc.
-------------------------------------------------------------------------------
--
function log2(x : natural) return integer is
variable i : integer := 0;
variable val: integer := 1;
begin
if x = 0 then return 0;
else
for j in 0 to 29 loop -- for loop for XST
if val >= x then null;
else
i := i+1;
val := val*2;
end if;
end loop;
-- Fix per CR520627 XST was ignoring this anyway and printing a
-- Warning in SRP file. This will get rid of the warning and not
-- impact simulation.
-- synthesis translate_off
assert val >= x
report "Function log2 received argument larger" &
" than its capability of 2^30. "
severity failure;
-- synthesis translate_on
return i;
end if;
end function log2;
-------------------------------------------------------------------------------
-- Function pwr -- x**y
-- negative numbers not allowed for y
-------------------------------------------------------------------------------
function pwr(x: integer; y: integer) return integer is
variable z : integer := 1;
begin
if y = 0 then return 1;
else
for i in 1 to y loop
z := z * x;
end loop;
return z;
end if;
end function pwr;
-------------------------------------------------------------------------------
-- Function itoa
--
-- The itoa function converts an integer to a text string.
-- This function is required since `image doesn't work in Synplicity
-- Valid input range is -9999 to 9999
-------------------------------------------------------------------------------
--
function itoa (int : integer) return string is
type table is array (0 to 9) of string (1 to 1);
constant LUT : table :=
("0", "1", "2", "3", "4", "5", "6", "7", "8", "9");
variable str1 : string(1 to 1);
variable str2 : string(1 to 2);
variable str3 : string(1 to 3);
variable str4 : string(1 to 4);
variable str5 : string(1 to 5);
variable abs_int : natural;
variable thousands_place : natural;
variable hundreds_place : natural;
variable tens_place : natural;
variable ones_place : natural;
variable sign : integer;
begin
abs_int := abs(int);
if abs_int > int then sign := -1;
else sign := 1;
end if;
thousands_place := abs_int/1000;
hundreds_place := (abs_int-thousands_place*1000)/100;
tens_place := (abs_int-thousands_place*1000-hundreds_place*100)/10;
ones_place :=
(abs_int-thousands_place*1000-hundreds_place*100-tens_place*10);
if sign>0 then
if thousands_place>0 then
str4 := LUT(thousands_place) & LUT(hundreds_place) & LUT(tens_place) &
LUT(ones_place);
return str4;
elsif hundreds_place>0 then
str3 := LUT(hundreds_place) & LUT(tens_place) & LUT(ones_place);
return str3;
elsif tens_place>0 then
str2 := LUT(tens_place) & LUT(ones_place);
return str2;
else
str1 := LUT(ones_place);
return str1;
end if;
else
if thousands_place>0 then
str5 := "-" & LUT(thousands_place) & LUT(hundreds_place) &
LUT(tens_place) & LUT(ones_place);
return str5;
elsif hundreds_place>0 then
str4 := "-" & LUT(hundreds_place) & LUT(tens_place) & LUT(ones_place);
return str4;
elsif tens_place>0 then
str3 := "-" & LUT(tens_place) & LUT(ones_place);
return str3;
else
str2 := "-" & LUT(ones_place);
return str2;
end if;
end if;
end itoa;
-----------------------------------------------------------------------------
-- Function String_To_Int
--
-- Converts a string of hex character to an integer
-- accept negative numbers
-----------------------------------------------------------------------------
function String_To_Int(S : String) return Integer is
variable Result : integer := 0;
variable Temp : integer := S'Left;
variable Negative : integer := 1;
begin
for I in S'Left to S'Right loop
if (S(I) = '-') then
Temp := 0;
Negative := -1;
else
Temp := STRHEX_TO_INT_TABLE(S(I));
if (Temp = -1) then
assert false
report "Wrong value in String_To_Int conversion " & S(I)
severity error;
end if;
end if;
Result := Result * 16 + Temp;
end loop;
return (Negative * Result);
end String_To_Int;
end package body proc_common_pkg;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/gxor.vhd | 4 | 909 | library ieee;
use ieee.std_logic_1164.all;
entity gxor is
port (a, b: in std_logic;
z : out std_logic);
end gxor;
architecture gxor_rtl of gxor is
begin
z <= a xor b;
end architecture gxor_rtl;
library ieee;
use ieee.std_logic_1164.all;
entity gxor_reduce is
generic (half_width: integer := 4);
port (a: in std_logic_vector (2*half_width-1 downto 0);
ar: out std_logic);
end gxor_reduce;
architecture gxor_reduce_rtl of gxor_reduce is
component gxor is
port (a, b: in std_logic;
z : out std_logic);
end component;
--type path is array (0 to size/2) of std_logic;
signal x_int: std_logic_vector (2*half_width downto 0);
begin
x_int(2*half_width) <= '0'; -- MSB
gen_xor: for i in 2*half_width downto 1 generate
each_gate: gxor port map (a => x_int(i), b => a(i-1), z => x_int(i-1) );
end generate;
ar <= x_int(0);
end architecture gxor_reduce_rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_textio_write.vhd | 2 | 2341 | -- Copyright (c) 2015 CERN
-- Maciej Suminski <[email protected]>
--
-- This source code is free software; you can redistribute it
-- and/or modify it in source code form under the terms of the GNU
-- General Public License as published by the Free Software
-- Foundation; either version 2 of the License, or (at your option)
-- any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-- Test writing files using std.textio library.
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use std.textio.all;
entity vhdl_textio_write is
port(
wr : in std_logic
);
end vhdl_textio_write;
architecture test of vhdl_textio_write is
begin
write_data: process(wr)
file data_file : text open write_mode is "vhdl_textio.tmp";
variable data_line : line;
variable data_string : string(6 downto 1);
variable data_int, data_hex : integer;
variable data_bool : boolean;
variable data_real : real;
variable data_time : time;
variable data_vector : std_logic_vector(5 downto 0);
begin
data_string := "string";
data_int := 123;
data_hex := X"F3";
data_bool := true;
data_real := 12.21;
data_time := 100 s;
data_vector := "1100XZ";
-- Test writing different variable types
write(data_line, data_int);
writeline(data_file, data_line);
write(data_line, data_bool);
writeline(data_file, data_line);
write(data_line, data_time);
writeline(data_file, data_line);
hwrite(data_line, data_hex);
writeline(data_file, data_line);
write(data_line, data_real);
writeline(data_file, data_line);
write(data_line, data_string);
writeline(data_file, data_line);
write(data_line, data_vector);
writeline(data_file, data_line);
end process;
end test;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_xor104_stdlogic.vhd | 4 | 313 | library ieee;
use ieee.std_logic_1164.all;
entity xor104 is
port (
a_i : in std_logic_vector (103 downto 0);
b_i : in std_logic_vector (103 downto 0);
c_o : out std_logic_vector (103 downto 0)
);
end entity xor104;
architecture rtl of xor104 is
begin
c_o <= a_i xor b_i;
end architecture rtl;
| gpl-2.0 |
huxiaolei/xapp1078_2014.4_zybo | design/src/my_ip/irq_gen_v1_00_a/hdl/vhdl/irq_gen.vhd | 2 | 17014 | ------------------------------------------------------------------------------
-- irq_gen.vhd - entity/architecture pair
------------------------------------------------------------------------------
-- IMPORTANT:
-- DO NOT MODIFY THIS FILE EXCEPT IN THE DESIGNATED SECTIONS.
--
-- SEARCH FOR --USER TO DETERMINE WHERE CHANGES ARE ALLOWED.
--
-- TYPICALLY, THE ONLY ACCEPTABLE CHANGES INVOLVE ADDING NEW
-- PORTS AND GENERICS THAT GET PASSED THROUGH TO THE INSTANTIATION
-- OF THE USER_LOGIC ENTITY.
------------------------------------------------------------------------------
--
-- ***************************************************************************
-- ** Copyright (c) 1995-2012 Xilinx, Inc. All rights reserved. **
-- ** **
-- ** Xilinx, Inc. **
-- ** XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" **
-- ** AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND **
-- ** SOLUTIONS FOR XILINX DEVICES. BY PROVIDING THIS DESIGN, CODE, **
-- ** OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, **
-- ** APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION **
-- ** THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT, **
-- ** AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE **
-- ** FOR YOUR IMPLEMENTATION. XILINX EXPRESSLY DISCLAIMS ANY **
-- ** WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE **
-- ** IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR **
-- ** REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF **
-- ** INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS **
-- ** FOR A PARTICULAR PURPOSE. **
-- ** **
-- ***************************************************************************
--
------------------------------------------------------------------------------
-- Filename: irq_gen.vhd
-- Version: 1.00.a
-- Description: Top level design, instantiates library components and user logic.
-- Date: Wed May 30 12:34:16 2012 (by Create and Import Peripheral Wizard)
-- VHDL Standard: VHDL'93
------------------------------------------------------------------------------
-- Naming Conventions:
-- active low signals: "*_n"
-- clock signals: "clk", "clk_div#", "clk_#x"
-- reset signals: "rst", "rst_n"
-- generics: "C_*"
-- user defined types: "*_TYPE"
-- state machine next state: "*_ns"
-- state machine current state: "*_cs"
-- combinatorial signals: "*_com"
-- pipelined or register delay signals: "*_d#"
-- counter signals: "*cnt*"
-- clock enable signals: "*_ce"
-- internal version of output port: "*_i"
-- device pins: "*_pin"
-- ports: "- Names begin with Uppercase"
-- processes: "*_PROCESS"
-- component instantiations: "<ENTITY_>I_<#|FUNC>"
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
library my_ipif;
use my_ipif.ipif_pkg.SLV64_ARRAY_TYPE;
use my_ipif.ipif_pkg.INTEGER_ARRAY_TYPE;
use my_ipif.ipif_pkg.calc_start_ce_index;
use my_ipif.ipif_pkg.calc_num_ce;
-- library proc_common_v3_00_a;
-- use proc_common_v3_00_a.proc_common_pkg.all;
-- use proc_common_v3_00_a.ipif_pkg.all;
--
-- library axi_lite_ipif_v1_01_a;
-- use axi_lite_ipif_v1_01_a.axi_lite_ipif;
library irq_gen_v1_00_a;
use irq_gen_v1_00_a.user_logic;
------------------------------------------------------------------------------
-- Entity section
------------------------------------------------------------------------------
-- Definition of Generics:
-- C_S_AXI_DATA_WIDTH -- AXI4LITE slave: Data width
-- C_S_AXI_ADDR_WIDTH -- AXI4LITE slave: Address Width
-- C_S_AXI_MIN_SIZE -- AXI4LITE slave: Min Size
-- C_USE_WSTRB -- AXI4LITE slave: Write Strobe
-- C_DPHASE_TIMEOUT -- AXI4LITE slave: Data Phase Timeout
-- C_BASEADDR -- AXI4LITE slave: base address
-- C_HIGHADDR -- AXI4LITE slave: high address
-- C_FAMILY -- FPGA Family
-- C_NUM_REG -- Number of software accessible registers
-- C_NUM_MEM -- Number of address-ranges
-- C_SLV_AWIDTH -- Slave interface address bus width
-- C_SLV_DWIDTH -- Slave interface data bus width
--
-- Definition of Ports:
-- S_AXI_ACLK -- AXI4LITE slave: Clock
-- S_AXI_ARESETN -- AXI4LITE slave: Reset
-- S_AXI_AWADDR -- AXI4LITE slave: Write address
-- S_AXI_AWVALID -- AXI4LITE slave: Write address valid
-- S_AXI_WDATA -- AXI4LITE slave: Write data
-- S_AXI_WSTRB -- AXI4LITE slave: Write strobe
-- S_AXI_WVALID -- AXI4LITE slave: Write data valid
-- S_AXI_BREADY -- AXI4LITE slave: Response ready
-- S_AXI_ARADDR -- AXI4LITE slave: Read address
-- S_AXI_ARVALID -- AXI4LITE slave: Read address valid
-- S_AXI_RREADY -- AXI4LITE slave: Read data ready
-- S_AXI_ARREADY -- AXI4LITE slave: read addres ready
-- S_AXI_RDATA -- AXI4LITE slave: Read data
-- S_AXI_RRESP -- AXI4LITE slave: Read data response
-- S_AXI_RVALID -- AXI4LITE slave: Read data valid
-- S_AXI_WREADY -- AXI4LITE slave: Write data ready
-- S_AXI_BRESP -- AXI4LITE slave: Response
-- S_AXI_BVALID -- AXI4LITE slave: Resonse valid
-- S_AXI_AWREADY -- AXI4LITE slave: Wrte address ready
------------------------------------------------------------------------------
entity irq_gen is
generic
(
-- ADD USER GENERICS BELOW THIS LINE ---------------
--USER generics added here
-- ADD USER GENERICS ABOVE THIS LINE ---------------
-- DO NOT EDIT BELOW THIS LINE ---------------------
-- Bus protocol parameters, do not add to or delete
C_S_AXI_DATA_WIDTH : integer := 32;
C_S_AXI_ADDR_WIDTH : integer := 32;
C_S_AXI_MIN_SIZE : std_logic_vector := X"000001FF";
C_USE_WSTRB : integer := 0;
C_DPHASE_TIMEOUT : integer := 8;
C_BASEADDR : std_logic_vector := X"FFFFFFFF";
C_HIGHADDR : std_logic_vector := X"00000000";
C_FAMILY : string := "virtex6";
C_NUM_REG : integer := 1;
C_NUM_MEM : integer := 1;
C_SLV_AWIDTH : integer := 32;
C_SLV_DWIDTH : integer := 32
-- DO NOT EDIT ABOVE THIS LINE ---------------------
);
port
(
-- ADD USER PORTS BELOW THIS LINE ------------------
IRQ : out std_logic;
VIO_IRQ_TICK : in std_logic;
vio_rise_edge : out std_logic;
slv_reg : out std_logic;
-- ADD USER PORTS ABOVE THIS LINE ------------------
-- DO NOT EDIT BELOW THIS LINE ---------------------
-- Bus protocol ports, do not add to or delete
S_AXI_ACLK : in std_logic;
S_AXI_ARESETN : in std_logic;
S_AXI_AWADDR : in std_logic_vector(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_AWVALID : in std_logic;
S_AXI_WDATA : in std_logic_vector(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_WSTRB : in std_logic_vector((C_S_AXI_DATA_WIDTH/8)-1 downto 0);
S_AXI_WVALID : in std_logic;
S_AXI_BREADY : in std_logic;
S_AXI_ARADDR : in std_logic_vector(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_ARVALID : in std_logic;
S_AXI_RREADY : in std_logic;
S_AXI_ARREADY : out std_logic;
S_AXI_RDATA : out std_logic_vector(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_RRESP : out std_logic_vector(1 downto 0);
S_AXI_RVALID : out std_logic;
S_AXI_WREADY : out std_logic;
S_AXI_BRESP : out std_logic_vector(1 downto 0);
S_AXI_BVALID : out std_logic;
S_AXI_AWREADY : out std_logic
-- DO NOT EDIT ABOVE THIS LINE ---------------------
);
attribute MAX_FANOUT : string;
attribute SIGIS : string;
attribute MAX_FANOUT of S_AXI_ACLK : signal is "10000";
attribute MAX_FANOUT of S_AXI_ARESETN : signal is "10000";
attribute SIGIS of S_AXI_ACLK : signal is "Clk";
attribute SIGIS of S_AXI_ARESETN : signal is "Rst";
end entity irq_gen;
------------------------------------------------------------------------------
-- Architecture section
------------------------------------------------------------------------------
architecture IMP of irq_gen is
constant USER_SLV_DWIDTH : integer := C_S_AXI_DATA_WIDTH;
constant IPIF_SLV_DWIDTH : integer := C_S_AXI_DATA_WIDTH;
constant ZERO_ADDR_PAD : std_logic_vector(0 to 31) := (others => '0');
constant USER_SLV_BASEADDR : std_logic_vector := C_BASEADDR;
constant USER_SLV_HIGHADDR : std_logic_vector := C_HIGHADDR;
constant IPIF_ARD_ADDR_RANGE_ARRAY : SLV64_ARRAY_TYPE :=
(
ZERO_ADDR_PAD & USER_SLV_BASEADDR, -- user logic slave space base address
ZERO_ADDR_PAD & USER_SLV_HIGHADDR -- user logic slave space high address
);
constant USER_SLV_NUM_REG : integer := 1;
constant USER_NUM_REG : integer := USER_SLV_NUM_REG;
constant TOTAL_IPIF_CE : integer := USER_NUM_REG;
constant IPIF_ARD_NUM_CE_ARRAY : INTEGER_ARRAY_TYPE :=
(
0 => (USER_SLV_NUM_REG) -- number of ce for user logic slave space
);
------------------------------------------
-- Index for CS/CE
------------------------------------------
constant USER_SLV_CS_INDEX : integer := 0;
constant USER_SLV_CE_INDEX : integer := calc_start_ce_index(IPIF_ARD_NUM_CE_ARRAY, USER_SLV_CS_INDEX);
constant USER_CE_INDEX : integer := USER_SLV_CE_INDEX;
------------------------------------------
-- IP Interconnect (IPIC) signal declarations
------------------------------------------
signal ipif_Bus2IP_Clk : std_logic;
signal ipif_Bus2IP_Resetn : std_logic;
signal ipif_Bus2IP_Addr : std_logic_vector(C_S_AXI_ADDR_WIDTH-1 downto 0);
signal ipif_Bus2IP_RNW : std_logic;
signal ipif_Bus2IP_BE : std_logic_vector(IPIF_SLV_DWIDTH/8-1 downto 0);
signal ipif_Bus2IP_CS : std_logic_vector((IPIF_ARD_ADDR_RANGE_ARRAY'LENGTH)/2-1 downto 0);
signal ipif_Bus2IP_RdCE : std_logic_vector(calc_num_ce(IPIF_ARD_NUM_CE_ARRAY)-1 downto 0);
signal ipif_Bus2IP_WrCE : std_logic_vector(calc_num_ce(IPIF_ARD_NUM_CE_ARRAY)-1 downto 0);
signal ipif_Bus2IP_Data : std_logic_vector(IPIF_SLV_DWIDTH-1 downto 0);
signal ipif_IP2Bus_WrAck : std_logic;
signal ipif_IP2Bus_RdAck : std_logic;
signal ipif_IP2Bus_Error : std_logic;
signal ipif_IP2Bus_Data : std_logic_vector(IPIF_SLV_DWIDTH-1 downto 0);
signal user_Bus2IP_RdCE : std_logic_vector(USER_NUM_REG-1 downto 0);
signal user_Bus2IP_WrCE : std_logic_vector(USER_NUM_REG-1 downto 0);
signal user_IP2Bus_Data : std_logic_vector(USER_SLV_DWIDTH-1 downto 0);
signal user_IP2Bus_RdAck : std_logic;
signal user_IP2Bus_WrAck : std_logic;
signal user_IP2Bus_Error : std_logic;
begin
------------------------------------------
-- instantiate axi_lite_ipif
------------------------------------------
AXI_LITE_IPIF_I : entity my_ipif.axi_lite_ipif
generic map
(
C_S_AXI_DATA_WIDTH => IPIF_SLV_DWIDTH,
C_S_AXI_ADDR_WIDTH => C_S_AXI_ADDR_WIDTH,
C_S_AXI_MIN_SIZE => C_S_AXI_MIN_SIZE,
C_USE_WSTRB => C_USE_WSTRB,
C_DPHASE_TIMEOUT => C_DPHASE_TIMEOUT,
C_ARD_ADDR_RANGE_ARRAY => IPIF_ARD_ADDR_RANGE_ARRAY,
C_ARD_NUM_CE_ARRAY => IPIF_ARD_NUM_CE_ARRAY,
C_FAMILY => C_FAMILY
)
port map
(
S_AXI_ACLK => S_AXI_ACLK,
S_AXI_ARESETN => S_AXI_ARESETN,
S_AXI_AWADDR => S_AXI_AWADDR,
S_AXI_AWVALID => S_AXI_AWVALID,
S_AXI_WDATA => S_AXI_WDATA,
S_AXI_WSTRB => S_AXI_WSTRB,
S_AXI_WVALID => S_AXI_WVALID,
S_AXI_BREADY => S_AXI_BREADY,
S_AXI_ARADDR => S_AXI_ARADDR,
S_AXI_ARVALID => S_AXI_ARVALID,
S_AXI_RREADY => S_AXI_RREADY,
S_AXI_ARREADY => S_AXI_ARREADY,
S_AXI_RDATA => S_AXI_RDATA,
S_AXI_RRESP => S_AXI_RRESP,
S_AXI_RVALID => S_AXI_RVALID,
S_AXI_WREADY => S_AXI_WREADY,
S_AXI_BRESP => S_AXI_BRESP,
S_AXI_BVALID => S_AXI_BVALID,
S_AXI_AWREADY => S_AXI_AWREADY,
Bus2IP_Clk => ipif_Bus2IP_Clk,
Bus2IP_Resetn => ipif_Bus2IP_Resetn,
Bus2IP_Addr => ipif_Bus2IP_Addr,
Bus2IP_RNW => ipif_Bus2IP_RNW,
Bus2IP_BE => ipif_Bus2IP_BE,
Bus2IP_CS => ipif_Bus2IP_CS,
Bus2IP_RdCE => ipif_Bus2IP_RdCE,
Bus2IP_WrCE => ipif_Bus2IP_WrCE,
Bus2IP_Data => ipif_Bus2IP_Data,
IP2Bus_WrAck => ipif_IP2Bus_WrAck,
IP2Bus_RdAck => ipif_IP2Bus_RdAck,
IP2Bus_Error => ipif_IP2Bus_Error,
IP2Bus_Data => ipif_IP2Bus_Data
);
------------------------------------------
-- instantiate User Logic
------------------------------------------
USER_LOGIC_I : entity irq_gen_v1_00_a.user_logic
generic map
(
-- MAP USER GENERICS BELOW THIS LINE ---------------
--USER generics mapped here
-- MAP USER GENERICS ABOVE THIS LINE ---------------
C_NUM_REG => USER_NUM_REG,
C_SLV_DWIDTH => USER_SLV_DWIDTH
)
port map
(
-- MAP USER PORTS BELOW THIS LINE ------------------
IRQ => IRQ,
VIO_IRQ_TICK => VIO_IRQ_TICK,
vio_rise_edge => vio_rise_edge,
slv_reg => slv_reg,
-- MAP USER PORTS ABOVE THIS LINE ------------------
Bus2IP_Clk => ipif_Bus2IP_Clk,
Bus2IP_Resetn => ipif_Bus2IP_Resetn,
Bus2IP_Data => ipif_Bus2IP_Data,
Bus2IP_BE => ipif_Bus2IP_BE,
Bus2IP_RdCE => user_Bus2IP_RdCE,
Bus2IP_WrCE => user_Bus2IP_WrCE,
IP2Bus_Data => user_IP2Bus_Data,
IP2Bus_RdAck => user_IP2Bus_RdAck,
IP2Bus_WrAck => user_IP2Bus_WrAck,
IP2Bus_Error => user_IP2Bus_Error
);
------------------------------------------
-- connect internal signals
------------------------------------------
ipif_IP2Bus_Data <= user_IP2Bus_Data;
ipif_IP2Bus_WrAck <= user_IP2Bus_WrAck;
ipif_IP2Bus_RdAck <= user_IP2Bus_RdAck;
ipif_IP2Bus_Error <= user_IP2Bus_Error;
user_Bus2IP_RdCE <= ipif_Bus2IP_RdCE(USER_NUM_REG-1 downto 0);
user_Bus2IP_WrCE <= ipif_Bus2IP_WrCE(USER_NUM_REG-1 downto 0);
end IMP;
| gpl-2.0 |
BenBoZ/realtimestagram | src/rgb2hsv_tb.vhd | 2 | 6052 | -- This file is part of Realtimestagram.
--
-- Realtimestagram is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 2 of the License, or
-- (at your option) any later version.
--
-- Realtimestagram is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with Realtimestagram. If not, see <http://www.gnu.org/licenses/>.
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.config_const_pkg.all;
--! Used for calculation of h_count and v_count port width
use ieee.math_real.all;
--======================================================================================--
entity rgb2hsv_tb is
generic (
input_file: string := "tst/input/smpte_bars.pnm"; --! Input file of test
output_file: string := "tst/output/rgb2hsv_smpte_bars.pnm"; --! Output file of test
image_width: integer := const_imagewidth; --! Width of input image
image_height: integer := const_imageheight --! Height of input image
);
end entity;
--======================================================================================--
architecture structural of rgb2hsv_tb is
--===================component declaration===================--
component test_bench_driver_color is
generic (
wordsize: integer := const_wordsize;
input_file: string := input_file;
output_file: string := output_file;
clk_period_ns: time := 1 ns;
rst_after: time := 9 ns;
rst_duration: time := 8 ns;
dut_delay: integer := 6
);
port (
clk: out std_logic;
rst: out std_logic;
enable: out std_logic;
h_count: out std_logic_vector;
v_count: out std_logic_vector;
red_pixel_from_file: out std_logic_vector;
green_pixel_from_file: out std_logic_vector;
blue_pixel_from_file: out std_logic_vector;
red_pixel_to_file: in std_logic_vector;
green_pixel_to_file: in std_logic_vector;
blue_pixel_to_file: in std_logic_vector
);
end component;
----------------------------------------------------------------------------------------------
component rgb2hsv is
generic (
wordsize: integer := 8 --! input image wordsize in bits
);
port (
-- inputs
clk: in std_logic; --! completely clocked process
rst: in std_logic; --! asynchronous reset
enable: in std_logic; --! enables block
pixel_red_i: in std_logic_vector; --! the input pixel
pixel_green_i: in std_logic_vector; --! the input pixel
pixel_blue_i: in std_logic_vector; --! the input pixel
-- outputs
pixel_hue_o: out std_logic_vector;
pixel_sat_o: out std_logic_vector;
pixel_val_o: out std_logic_vector
);
end component;
----------------------------------------------------------------------------------------------
--===================signal declaration===================--
signal clk: std_logic := '0';
signal rst: std_logic := '0';
signal enable: std_logic := '0';
signal h_count: std_logic_vector((integer(ceil(log2(real(image_width))))-1) downto 0) := (others => '0');
signal v_count: std_logic_vector((integer(ceil(log2(real(image_height))))-1) downto 0) := (others => '0');
signal red_pixel_from_file: std_logic_vector((const_wordsize-1) downto 0) := (others => '0');
signal green_pixel_from_file: std_logic_vector((const_wordsize-1) downto 0) := (others => '0');
signal blue_pixel_from_file: std_logic_vector((const_wordsize-1) downto 0) := (others => '0');
signal red_pixel_to_file: std_logic_vector((const_wordsize-1) downto 0) := (others => '0');
signal green_pixel_to_file: std_logic_vector((const_wordsize-1) downto 0) := (others => '0');
signal blue_pixel_to_file: std_logic_vector((const_wordsize-1) downto 0) := (others => '0');
begin
--===================component instantiation===================--
tst_driver: test_bench_driver_color
port map(
clk => clk,
rst => rst,
enable => enable,
h_count => h_count,
v_count => v_count,
red_pixel_from_file => red_pixel_from_file,
green_pixel_from_file => green_pixel_from_file,
blue_pixel_from_file => blue_pixel_from_file,
red_pixel_to_file => red_pixel_to_file,
green_pixel_to_file => green_pixel_to_file,
blue_pixel_to_file => blue_pixel_to_file
);
device_under_test: rgb2hsv
port map(
clk => clk,
rst => rst,
enable => enable,
pixel_red_i => red_pixel_from_file,
pixel_green_i => green_pixel_from_file,
pixel_blue_i => blue_pixel_from_file,
pixel_hue_o => red_pixel_to_file,
pixel_sat_o => green_pixel_to_file,
pixel_val_o => blue_pixel_to_file
);
end architecture;
| gpl-2.0 |
huxiaolei/xapp1078_2014.4_zybo | design/src/my_ip/irq_gen_v1_00_a/hdl/vhdl/axi_lite_ipif.vhd | 2 | 14090 | -------------------------------------------------------------------
-- (c) Copyright 1984 - 2012 Xilinx, Inc. All rights reserved. --
-- --
-- This file contains confidential and proprietary information --
-- of Xilinx, Inc. and is protected under U.S. and --
-- international copyright and other intellectual property --
-- laws. --
-- --
-- DISCLAIMER --
-- This disclaimer is not a license and does not grant any --
-- rights to the materials distributed herewith. Except as --
-- otherwise provided in a valid license issued to you by --
-- Xilinx, and to the maximum extent permitted by applicable --
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND --
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES --
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING --
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON- --
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and --
-- (2) Xilinx shall not be liable (whether in contract or tort, --
-- including negligence, or under any other theory of --
-- liability) for any loss or damage of any kind or nature --
-- related to, arising under or in connection with these --
-- materials, including for any direct, or any indirect, --
-- special, incidental, or consequential loss or damage --
-- (including loss of data, profits, goodwill, or any type of --
-- loss or damage suffered as a result of any action brought --
-- by a third party) even if such damage or loss was --
-- reasonably foreseeable or Xilinx had been advised of the --
-- possibility of the same. --
-- --
-- CRITICAL APPLICATIONS --
-- Xilinx products are not designed or intended to be fail- --
-- safe, or for use in any application requiring fail-safe --
-- performance, such as life-support or safety devices or --
-- systems, Class III medical devices, nuclear facilities, --
-- applications related to the deployment of airbags, or any --
-- other applications that could lead to death, personal --
-- injury, or severe property or environmental damage --
-- (individually and collectively, "Critical --
-- Applications"). Customer assumes the sole risk and --
-- liability of any use of Xilinx products in Critical --
-- Applications, subject only to applicable laws and --
-- regulations governing limitations on product liability. --
-- --
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS --
-- PART OF THIS FILE AT ALL TIMES. --
-------------------------------------------------------------------
-- ************************************************************************
--
-------------------------------------------------------------------------------
-- Filename: axi_lite_ipif.vhd
-- Version: v1.01.a
-- Description: This is the top level design file for the axi_lite_ipif
-- function. It provides a standardized slave interface
-- between the IP and the AXI. This version supports
-- single read/write transfers only. It does not provide
-- address pipelining or simultaneous read and write
-- operations.
-------------------------------------------------------------------------------
-- Structure: This section shows the hierarchical structure of axi_lite_ipif.
--
-- --axi_lite_ipif.vhd
-- --slave_attachment.vhd
-- --address_decoder.vhd
-------------------------------------------------------------------------------
-- Author: BSB
--
-- History:
--
-- BSB 05/20/10 -- First version
-- ~~~~~~
-- - Created the first version v1.00.a
-- ^^^^^^
-- ~~~~~~
-- SK 06/09/10 -- v1.01.a
-- 1. updated to reduce the utilization
-- Closed CR #574507
-- 2. Optimized the state machine code
-- 3. Optimized the address decoder logic to generate the CE's with common logic
-- 4. Address GAP decoding logic is removed and timeout counter is made active
-- for all transactions.
-- ^^^^^^
-------------------------------------------------------------------------------
-- Naming Conventions:
-- active low signals: "*_n"
-- clock signals: "clk", "clk_div#", "clk_#x"
-- reset signals: "rst", "rst_n"
-- generics: "C_*"
-- user defined types: "*_TYPE"
-- state machine next state: "*_ns"
-- state machine current state: "*_cs"
-- combinatorial signals: "*_cmb"
-- pipelined or register delay signals: "*_d#"
-- counter signals: "*cnt*"
-- clock enable signals: "*_ce"
-- internal version of output port "*_i"
-- device pins: "*_pin"
-- ports: - Names begin with Uppercase
-- processes: "*_PROCESS"
-- component instantiations: "<ENTITY_>I_<#|FUNC>
-------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
use ieee.numeric_std.all;
use ieee.std_logic_misc.all;
library my_ipif;
use my_ipif.ipif_pkg.SLV64_ARRAY_TYPE;
use my_ipif.ipif_pkg.INTEGER_ARRAY_TYPE;
use my_ipif.ipif_pkg.calc_num_ce;
-------------------------------------------------------------------------------
-- Definition of Generics
-------------------------------------------------------------------------------
-- C_S_AXI_DATA_WIDTH -- AXI data bus width
-- C_S_AXI_ADDR_WIDTH -- AXI address bus width
-- C_S_AXI_MIN_SIZE -- Minimum address range of the IP
-- C_USE_WSTRB -- Use write strobs or not
-- C_DPHASE_TIMEOUT -- Data phase time out counter
-- C_ARD_ADDR_RANGE_ARRAY-- Base /High Address Pair for each Address Range
-- C_ARD_NUM_CE_ARRAY -- Desired number of chip enables for an address range
-- C_FAMILY -- Target FPGA family
-------------------------------------------------------------------------------
-- Definition of Ports
-------------------------------------------------------------------------------
-- S_AXI_ACLK -- AXI Clock
-- S_AXI_ARESETN -- AXI Reset
-- S_AXI_AWADDR -- AXI Write address
-- S_AXI_AWVALID -- Write address valid
-- S_AXI_AWREADY -- Write address ready
-- S_AXI_WDATA -- Write data
-- S_AXI_WSTRB -- Write strobes
-- S_AXI_WVALID -- Write valid
-- S_AXI_WREADY -- Write ready
-- S_AXI_BRESP -- Write response
-- S_AXI_BVALID -- Write response valid
-- S_AXI_BREADY -- Response ready
-- S_AXI_ARADDR -- Read address
-- S_AXI_ARVALID -- Read address valid
-- S_AXI_ARREADY -- Read address ready
-- S_AXI_RDATA -- Read data
-- S_AXI_RRESP -- Read response
-- S_AXI_RVALID -- Read valid
-- S_AXI_RREADY -- Read ready
-- Bus2IP_Clk -- Synchronization clock provided to User IP
-- Bus2IP_Reset -- Active high reset for use by the User IP
-- Bus2IP_Addr -- Desired address of read or write operation
-- Bus2IP_RNW -- Read or write indicator for the transaction
-- Bus2IP_BE -- Byte enables for the data bus
-- Bus2IP_CS -- Chip select for the transcations
-- Bus2IP_RdCE -- Chip enables for the read
-- Bus2IP_WrCE -- Chip enables for the write
-- Bus2IP_Data -- Write data bus to the User IP
-- IP2Bus_Data -- Input Read Data bus from the User IP
-- IP2Bus_WrAck -- Active high Write Data qualifier from the IP
-- IP2Bus_RdAck -- Active high Read Data qualifier from the IP
-- IP2Bus_Error -- Error signal from the IP
-------------------------------------------------------------------------------
entity axi_lite_ipif is
generic (
C_S_AXI_DATA_WIDTH : integer range 32 to 32 := 32;
C_S_AXI_ADDR_WIDTH : integer := 32;
C_S_AXI_MIN_SIZE : std_logic_vector(31 downto 0):= X"000001FF";
C_USE_WSTRB : integer := 0;
C_DPHASE_TIMEOUT : integer range 0 to 512 := 8;
C_ARD_ADDR_RANGE_ARRAY: SLV64_ARRAY_TYPE := -- not used
(
X"0000_0000_7000_0000", -- IP user0 base address
X"0000_0000_7000_00FF", -- IP user0 high address
X"0000_0000_7000_0100", -- IP user1 base address
X"0000_0000_7000_01FF" -- IP user1 high address
);
C_ARD_NUM_CE_ARRAY : INTEGER_ARRAY_TYPE := -- not used
(
4, -- User0 CE Number
12 -- User1 CE Number
);
C_FAMILY : string := "virtex6"
);
port (
--System signals
S_AXI_ACLK : in std_logic;
S_AXI_ARESETN : in std_logic;
S_AXI_AWADDR : in std_logic_vector
(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_AWVALID : in std_logic;
S_AXI_AWREADY : out std_logic;
S_AXI_WDATA : in std_logic_vector
(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_WSTRB : in std_logic_vector
((C_S_AXI_DATA_WIDTH/8)-1 downto 0);
S_AXI_WVALID : in std_logic;
S_AXI_WREADY : out std_logic;
S_AXI_BRESP : out std_logic_vector(1 downto 0);
S_AXI_BVALID : out std_logic;
S_AXI_BREADY : in std_logic;
S_AXI_ARADDR : in std_logic_vector
(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_ARVALID : in std_logic;
S_AXI_ARREADY : out std_logic;
S_AXI_RDATA : out std_logic_vector
(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_RRESP : out std_logic_vector(1 downto 0);
S_AXI_RVALID : out std_logic;
S_AXI_RREADY : in std_logic;
-- Controls to the IP/IPIF modules
Bus2IP_Clk : out std_logic;
Bus2IP_Resetn : out std_logic;
Bus2IP_Addr : out std_logic_vector
((C_S_AXI_ADDR_WIDTH-1) downto 0);
Bus2IP_RNW : out std_logic;
Bus2IP_BE : out std_logic_vector
(((C_S_AXI_DATA_WIDTH/8)-1) downto 0);
Bus2IP_CS : out std_logic_vector
(((C_ARD_ADDR_RANGE_ARRAY'LENGTH)/2-1) downto 0);
Bus2IP_RdCE : out std_logic_vector
((calc_num_ce(C_ARD_NUM_CE_ARRAY)-1) downto 0);
Bus2IP_WrCE : out std_logic_vector
((calc_num_ce(C_ARD_NUM_CE_ARRAY)-1) downto 0);
Bus2IP_Data : out std_logic_vector
((C_S_AXI_DATA_WIDTH-1) downto 0);
IP2Bus_Data : in std_logic_vector
((C_S_AXI_DATA_WIDTH-1) downto 0);
IP2Bus_WrAck : in std_logic;
IP2Bus_RdAck : in std_logic;
IP2Bus_Error : in std_logic
);
end axi_lite_ipif;
-------------------------------------------------------------------------------
-- Architecture
-------------------------------------------------------------------------------
architecture imp of axi_lite_ipif is
-------------------------------------------------------------------------------
-- Begin architecture logic
-------------------------------------------------------------------------------
begin
-------------------------------------------------------------------------------
-- Slave Attachment
-------------------------------------------------------------------------------
I_SLAVE_ATTACHMENT: entity work.slave_attachment
generic map(
C_ARD_ADDR_RANGE_ARRAY => C_ARD_ADDR_RANGE_ARRAY,
C_ARD_NUM_CE_ARRAY => C_ARD_NUM_CE_ARRAY,
C_IPIF_ABUS_WIDTH => C_S_AXI_ADDR_WIDTH,
C_IPIF_DBUS_WIDTH => C_S_AXI_DATA_WIDTH,
C_USE_WSTRB => C_USE_WSTRB,
C_DPHASE_TIMEOUT => C_DPHASE_TIMEOUT,
C_S_AXI_MIN_SIZE => C_S_AXI_MIN_SIZE,
C_FAMILY => C_FAMILY
)
port map(
-- AXI signals
S_AXI_ACLK => S_AXI_ACLK,
S_AXI_ARESETN => S_AXI_ARESETN,
S_AXI_AWADDR => S_AXI_AWADDR,
S_AXI_AWVALID => S_AXI_AWVALID,
S_AXI_AWREADY => S_AXI_AWREADY,
S_AXI_WDATA => S_AXI_WDATA,
S_AXI_WSTRB => S_AXI_WSTRB,
S_AXI_WVALID => S_AXI_WVALID,
S_AXI_WREADY => S_AXI_WREADY,
S_AXI_BRESP => S_AXI_BRESP,
S_AXI_BVALID => S_AXI_BVALID,
S_AXI_BREADY => S_AXI_BREADY,
S_AXI_ARADDR => S_AXI_ARADDR,
S_AXI_ARVALID => S_AXI_ARVALID,
S_AXI_ARREADY => S_AXI_ARREADY,
S_AXI_RDATA => S_AXI_RDATA,
S_AXI_RRESP => S_AXI_RRESP,
S_AXI_RVALID => S_AXI_RVALID,
S_AXI_RREADY => S_AXI_RREADY,
-- IPIC signals
Bus2IP_Clk => Bus2IP_Clk,
Bus2IP_Resetn => Bus2IP_Resetn,
Bus2IP_Addr => Bus2IP_Addr,
Bus2IP_RNW => Bus2IP_RNW,
Bus2IP_BE => Bus2IP_BE,
Bus2IP_CS => Bus2IP_CS,
Bus2IP_RdCE => Bus2IP_RdCE,
Bus2IP_WrCE => Bus2IP_WrCE,
Bus2IP_Data => Bus2IP_Data,
IP2Bus_Data => IP2Bus_Data,
IP2Bus_WrAck => IP2Bus_WrAck,
IP2Bus_RdAck => IP2Bus_RdAck,
IP2Bus_Error => IP2Bus_Error
);
end imp;
| gpl-2.0 |
huxiaolei/xapp1078_2014.4_zybo | design/work/project_2/project_2.srcs/sources_1/ipshared/xilinx.com/irq_gen_v1_1/f141c1dc/hdl/vhdl/axi_lite_ipif.vhd | 2 | 14090 | -------------------------------------------------------------------
-- (c) Copyright 1984 - 2012 Xilinx, Inc. All rights reserved. --
-- --
-- This file contains confidential and proprietary information --
-- of Xilinx, Inc. and is protected under U.S. and --
-- international copyright and other intellectual property --
-- laws. --
-- --
-- DISCLAIMER --
-- This disclaimer is not a license and does not grant any --
-- rights to the materials distributed herewith. Except as --
-- otherwise provided in a valid license issued to you by --
-- Xilinx, and to the maximum extent permitted by applicable --
-- law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND --
-- WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES --
-- AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING --
-- BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON- --
-- INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and --
-- (2) Xilinx shall not be liable (whether in contract or tort, --
-- including negligence, or under any other theory of --
-- liability) for any loss or damage of any kind or nature --
-- related to, arising under or in connection with these --
-- materials, including for any direct, or any indirect, --
-- special, incidental, or consequential loss or damage --
-- (including loss of data, profits, goodwill, or any type of --
-- loss or damage suffered as a result of any action brought --
-- by a third party) even if such damage or loss was --
-- reasonably foreseeable or Xilinx had been advised of the --
-- possibility of the same. --
-- --
-- CRITICAL APPLICATIONS --
-- Xilinx products are not designed or intended to be fail- --
-- safe, or for use in any application requiring fail-safe --
-- performance, such as life-support or safety devices or --
-- systems, Class III medical devices, nuclear facilities, --
-- applications related to the deployment of airbags, or any --
-- other applications that could lead to death, personal --
-- injury, or severe property or environmental damage --
-- (individually and collectively, "Critical --
-- Applications"). Customer assumes the sole risk and --
-- liability of any use of Xilinx products in Critical --
-- Applications, subject only to applicable laws and --
-- regulations governing limitations on product liability. --
-- --
-- THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS --
-- PART OF THIS FILE AT ALL TIMES. --
-------------------------------------------------------------------
-- ************************************************************************
--
-------------------------------------------------------------------------------
-- Filename: axi_lite_ipif.vhd
-- Version: v1.01.a
-- Description: This is the top level design file for the axi_lite_ipif
-- function. It provides a standardized slave interface
-- between the IP and the AXI. This version supports
-- single read/write transfers only. It does not provide
-- address pipelining or simultaneous read and write
-- operations.
-------------------------------------------------------------------------------
-- Structure: This section shows the hierarchical structure of axi_lite_ipif.
--
-- --axi_lite_ipif.vhd
-- --slave_attachment.vhd
-- --address_decoder.vhd
-------------------------------------------------------------------------------
-- Author: BSB
--
-- History:
--
-- BSB 05/20/10 -- First version
-- ~~~~~~
-- - Created the first version v1.00.a
-- ^^^^^^
-- ~~~~~~
-- SK 06/09/10 -- v1.01.a
-- 1. updated to reduce the utilization
-- Closed CR #574507
-- 2. Optimized the state machine code
-- 3. Optimized the address decoder logic to generate the CE's with common logic
-- 4. Address GAP decoding logic is removed and timeout counter is made active
-- for all transactions.
-- ^^^^^^
-------------------------------------------------------------------------------
-- Naming Conventions:
-- active low signals: "*_n"
-- clock signals: "clk", "clk_div#", "clk_#x"
-- reset signals: "rst", "rst_n"
-- generics: "C_*"
-- user defined types: "*_TYPE"
-- state machine next state: "*_ns"
-- state machine current state: "*_cs"
-- combinatorial signals: "*_cmb"
-- pipelined or register delay signals: "*_d#"
-- counter signals: "*cnt*"
-- clock enable signals: "*_ce"
-- internal version of output port "*_i"
-- device pins: "*_pin"
-- ports: - Names begin with Uppercase
-- processes: "*_PROCESS"
-- component instantiations: "<ENTITY_>I_<#|FUNC>
-------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
use ieee.numeric_std.all;
use ieee.std_logic_misc.all;
library my_ipif;
use my_ipif.ipif_pkg.SLV64_ARRAY_TYPE;
use my_ipif.ipif_pkg.INTEGER_ARRAY_TYPE;
use my_ipif.ipif_pkg.calc_num_ce;
-------------------------------------------------------------------------------
-- Definition of Generics
-------------------------------------------------------------------------------
-- C_S_AXI_DATA_WIDTH -- AXI data bus width
-- C_S_AXI_ADDR_WIDTH -- AXI address bus width
-- C_S_AXI_MIN_SIZE -- Minimum address range of the IP
-- C_USE_WSTRB -- Use write strobs or not
-- C_DPHASE_TIMEOUT -- Data phase time out counter
-- C_ARD_ADDR_RANGE_ARRAY-- Base /High Address Pair for each Address Range
-- C_ARD_NUM_CE_ARRAY -- Desired number of chip enables for an address range
-- C_FAMILY -- Target FPGA family
-------------------------------------------------------------------------------
-- Definition of Ports
-------------------------------------------------------------------------------
-- S_AXI_ACLK -- AXI Clock
-- S_AXI_ARESETN -- AXI Reset
-- S_AXI_AWADDR -- AXI Write address
-- S_AXI_AWVALID -- Write address valid
-- S_AXI_AWREADY -- Write address ready
-- S_AXI_WDATA -- Write data
-- S_AXI_WSTRB -- Write strobes
-- S_AXI_WVALID -- Write valid
-- S_AXI_WREADY -- Write ready
-- S_AXI_BRESP -- Write response
-- S_AXI_BVALID -- Write response valid
-- S_AXI_BREADY -- Response ready
-- S_AXI_ARADDR -- Read address
-- S_AXI_ARVALID -- Read address valid
-- S_AXI_ARREADY -- Read address ready
-- S_AXI_RDATA -- Read data
-- S_AXI_RRESP -- Read response
-- S_AXI_RVALID -- Read valid
-- S_AXI_RREADY -- Read ready
-- Bus2IP_Clk -- Synchronization clock provided to User IP
-- Bus2IP_Reset -- Active high reset for use by the User IP
-- Bus2IP_Addr -- Desired address of read or write operation
-- Bus2IP_RNW -- Read or write indicator for the transaction
-- Bus2IP_BE -- Byte enables for the data bus
-- Bus2IP_CS -- Chip select for the transcations
-- Bus2IP_RdCE -- Chip enables for the read
-- Bus2IP_WrCE -- Chip enables for the write
-- Bus2IP_Data -- Write data bus to the User IP
-- IP2Bus_Data -- Input Read Data bus from the User IP
-- IP2Bus_WrAck -- Active high Write Data qualifier from the IP
-- IP2Bus_RdAck -- Active high Read Data qualifier from the IP
-- IP2Bus_Error -- Error signal from the IP
-------------------------------------------------------------------------------
entity axi_lite_ipif is
generic (
C_S_AXI_DATA_WIDTH : integer range 32 to 32 := 32;
C_S_AXI_ADDR_WIDTH : integer := 32;
C_S_AXI_MIN_SIZE : std_logic_vector(31 downto 0):= X"000001FF";
C_USE_WSTRB : integer := 0;
C_DPHASE_TIMEOUT : integer range 0 to 512 := 8;
C_ARD_ADDR_RANGE_ARRAY: SLV64_ARRAY_TYPE := -- not used
(
X"0000_0000_7000_0000", -- IP user0 base address
X"0000_0000_7000_00FF", -- IP user0 high address
X"0000_0000_7000_0100", -- IP user1 base address
X"0000_0000_7000_01FF" -- IP user1 high address
);
C_ARD_NUM_CE_ARRAY : INTEGER_ARRAY_TYPE := -- not used
(
4, -- User0 CE Number
12 -- User1 CE Number
);
C_FAMILY : string := "virtex6"
);
port (
--System signals
S_AXI_ACLK : in std_logic;
S_AXI_ARESETN : in std_logic;
S_AXI_AWADDR : in std_logic_vector
(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_AWVALID : in std_logic;
S_AXI_AWREADY : out std_logic;
S_AXI_WDATA : in std_logic_vector
(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_WSTRB : in std_logic_vector
((C_S_AXI_DATA_WIDTH/8)-1 downto 0);
S_AXI_WVALID : in std_logic;
S_AXI_WREADY : out std_logic;
S_AXI_BRESP : out std_logic_vector(1 downto 0);
S_AXI_BVALID : out std_logic;
S_AXI_BREADY : in std_logic;
S_AXI_ARADDR : in std_logic_vector
(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_ARVALID : in std_logic;
S_AXI_ARREADY : out std_logic;
S_AXI_RDATA : out std_logic_vector
(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_RRESP : out std_logic_vector(1 downto 0);
S_AXI_RVALID : out std_logic;
S_AXI_RREADY : in std_logic;
-- Controls to the IP/IPIF modules
Bus2IP_Clk : out std_logic;
Bus2IP_Resetn : out std_logic;
Bus2IP_Addr : out std_logic_vector
((C_S_AXI_ADDR_WIDTH-1) downto 0);
Bus2IP_RNW : out std_logic;
Bus2IP_BE : out std_logic_vector
(((C_S_AXI_DATA_WIDTH/8)-1) downto 0);
Bus2IP_CS : out std_logic_vector
(((C_ARD_ADDR_RANGE_ARRAY'LENGTH)/2-1) downto 0);
Bus2IP_RdCE : out std_logic_vector
((calc_num_ce(C_ARD_NUM_CE_ARRAY)-1) downto 0);
Bus2IP_WrCE : out std_logic_vector
((calc_num_ce(C_ARD_NUM_CE_ARRAY)-1) downto 0);
Bus2IP_Data : out std_logic_vector
((C_S_AXI_DATA_WIDTH-1) downto 0);
IP2Bus_Data : in std_logic_vector
((C_S_AXI_DATA_WIDTH-1) downto 0);
IP2Bus_WrAck : in std_logic;
IP2Bus_RdAck : in std_logic;
IP2Bus_Error : in std_logic
);
end axi_lite_ipif;
-------------------------------------------------------------------------------
-- Architecture
-------------------------------------------------------------------------------
architecture imp of axi_lite_ipif is
-------------------------------------------------------------------------------
-- Begin architecture logic
-------------------------------------------------------------------------------
begin
-------------------------------------------------------------------------------
-- Slave Attachment
-------------------------------------------------------------------------------
I_SLAVE_ATTACHMENT: entity work.slave_attachment
generic map(
C_ARD_ADDR_RANGE_ARRAY => C_ARD_ADDR_RANGE_ARRAY,
C_ARD_NUM_CE_ARRAY => C_ARD_NUM_CE_ARRAY,
C_IPIF_ABUS_WIDTH => C_S_AXI_ADDR_WIDTH,
C_IPIF_DBUS_WIDTH => C_S_AXI_DATA_WIDTH,
C_USE_WSTRB => C_USE_WSTRB,
C_DPHASE_TIMEOUT => C_DPHASE_TIMEOUT,
C_S_AXI_MIN_SIZE => C_S_AXI_MIN_SIZE,
C_FAMILY => C_FAMILY
)
port map(
-- AXI signals
S_AXI_ACLK => S_AXI_ACLK,
S_AXI_ARESETN => S_AXI_ARESETN,
S_AXI_AWADDR => S_AXI_AWADDR,
S_AXI_AWVALID => S_AXI_AWVALID,
S_AXI_AWREADY => S_AXI_AWREADY,
S_AXI_WDATA => S_AXI_WDATA,
S_AXI_WSTRB => S_AXI_WSTRB,
S_AXI_WVALID => S_AXI_WVALID,
S_AXI_WREADY => S_AXI_WREADY,
S_AXI_BRESP => S_AXI_BRESP,
S_AXI_BVALID => S_AXI_BVALID,
S_AXI_BREADY => S_AXI_BREADY,
S_AXI_ARADDR => S_AXI_ARADDR,
S_AXI_ARVALID => S_AXI_ARVALID,
S_AXI_ARREADY => S_AXI_ARREADY,
S_AXI_RDATA => S_AXI_RDATA,
S_AXI_RRESP => S_AXI_RRESP,
S_AXI_RVALID => S_AXI_RVALID,
S_AXI_RREADY => S_AXI_RREADY,
-- IPIC signals
Bus2IP_Clk => Bus2IP_Clk,
Bus2IP_Resetn => Bus2IP_Resetn,
Bus2IP_Addr => Bus2IP_Addr,
Bus2IP_RNW => Bus2IP_RNW,
Bus2IP_BE => Bus2IP_BE,
Bus2IP_CS => Bus2IP_CS,
Bus2IP_RdCE => Bus2IP_RdCE,
Bus2IP_WrCE => Bus2IP_WrCE,
Bus2IP_Data => Bus2IP_Data,
IP2Bus_Data => IP2Bus_Data,
IP2Bus_WrAck => IP2Bus_WrAck,
IP2Bus_RdAck => IP2Bus_RdAck,
IP2Bus_Error => IP2Bus_Error
);
end imp;
| gpl-2.0 |
db-electronics/SMSFlashCart | src/SMSMapper.vhd | 1 | 5520 | --*************************************************************
-- db Mapper
-- Copyright 2015 Rene Richard
-- DEVICE : EPM3064ATC100-10
--*************************************************************
--
-- Description:
-- This is a VHDL implementation of an SMS Sega Mapper
-- it is intended to be used on the db Electronics SMS Homebrew Carts
-- Supported Flash Memory Configurations:
-- 2Mbit (1x 2Mbit)
-- 4Mbit (1x 4Mbit)
-- 8Mbit (1x 4Mbit)
-- Support RAM Configurations
-- 32KB
--
-- for a complete description of SMS Mappers, go to http://www.smspower.org/Development/Mappers
--*************************************************************
--
-- RAM and Misc. Register
-- $FFFC
-- bit 7: ROM Write Enable
-- when '1' writes to ROM (i.e. Flash) are enabled
-- when '0' writes to mapper registers are enabled
-- bit 3: RAM Enable
-- when '1' RAM will be mapped into slot 2, overriding any ROM banking via $ffff
-- when '0' ROM banking is effective
-- bit 2: RAM Bank Select
-- when '1' maps the upper 16KB of RAM into slot 2
-- when '0' maps the lower 16KB of RAM into slot 2
--*************************************************************
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
entity SMSMapper is
generic(
SLOT0ENABLE : boolean := true;
SLOT1ENABLE : boolean := true
);
port (
--input from sms
ADDR_p : in std_logic_vector(15 downto 0);
DATA_p : in std_logic_vector(7 downto 0);
nRST_p : in std_logic;
nWR_p : in std_logic;
nCE_p : in std_logic;
--output to ROM
nROMWE_p : out std_logic;
nROMCE_p : out std_logic;
ROMADDR1914_p : out std_logic_vector(5 downto 0);
--output to serial EEPROM
EE_CS_p : out std_logic;
EE_SO_p : out std_logic;
EE_SI_p : out std_logic;
EE_SCK_p : out std_logic;
--output to SRAM
nSRAMCE_p : out std_logic;
nSRAMWE_p : out std_logic;
SRAMADDR14_p : out std_logic
);
end entity;
architecture SMSMapper_a of SMSMapper is
--internal data and address signals for easy write back if ever needed
signal datain_s : std_logic_vector(7 downto 0);
signal addr_s : std_logic_vector(15 downto 0);
--Mapper slot registers, fitter will optimize any unused bits
signal romSlot1_s : std_logic_vector(5 downto 0);
signal romSlot2_s : std_logic_vector(5 downto 0);
signal mapAddr_s : std_logic_vector(5 downto 0);
--internal rom signals
signal romWrEn_s : std_logic;
signal nRomCE_s : std_logic;
signal nRomWE_s : std_logic;
--RAM mapping signals
signal ramEn_s : std_logic;
signal ramBank_s : std_logic;
begin
--internal data and address signals
addr_s <= ADDR_p;
datain_s <= DATA_p;
--output mapping to ROM and RAM
SRAMADDR14_p <= ramBank_s;
--high order address bits and WE and CE must be open-drain to meet 5V requirements
-- 1K pull-up on each of these lines
ROMADDR1914_p(0) <= '0' when mapAddr_s(0) = '0' else 'Z';
ROMADDR1914_p(1) <= '0' when mapAddr_s(1) = '0' else 'Z';
ROMADDR1914_p(2) <= '0' when mapAddr_s(2) = '0' else 'Z';
ROMADDR1914_p(3) <= '0' when mapAddr_s(3) = '0' else 'Z';
ROMADDR1914_p(4) <= '0' when mapAddr_s(4) = '0' else 'Z';
ROMADDR1914_p(5) <= '0' when mapAddr_s(5) = '0' else 'Z';
--ROM Write Gating with bit7 of $FFFC
nRomWE_s <= nWR_p when romWrEn_s = '1' else '1';
nROMWE_p <= '0' when nRomWE_s = '0' else 'Z';
nROMCE_p <= '0' when nRomCE_s = '0' else 'Z';
--default values for now, todo later
EE_CS_p <= '1';
EE_SO_p <= '1';
EE_SI_p <= '1';
EE_SCK_p <= '1';
--RAM mapping and miscellaneous functions register
ram0: process( nRST_p, nWR_p, nCE_p, addr_s )
begin
if nRST_p = '0' then
romWrEn_s <= '0';
ramEn_s <= '0';
ramBank_s <= '0';
--nWR rises before address and mreq on Z80
elsif falling_edge(nWR_p) then
if addr_s = x"FFFC" and nCE_p = '0' then
romWrEn_s <= datain_s(7);
ramEn_s <= datain_s(3);
ramBank_s <= datain_s(2);
end if;
end if;
end process;
--mapper registers
mappers: process( nRST_p, nWR_p, nCE_p, addr_s)
begin
if nRST_p = '0' then
romSlot1_s <= "000001";
romSlot2_s <= "000010";
--nWR rises before address and mreq on Z80
elsif falling_edge(nWR_p) then
if nCE_p = '0' then
case addr_s is
when x"FFFE" =>
romSlot1_s <= datain_s(5 downto 0);
when x"FFFF" =>
romSlot2_s <= datain_s(5 downto 0);
when others =>
null;
end case;
end if;
end if;
end process;
--banking select
--only looks at address, this way the address setup and hold times can be respected
banking: process( addr_s )
begin
mapAddr_s <= (others=>'0');
case addr_s(15 downto 14) is
when "01" =>
mapAddr_s <= romSlot1_s(5 downto 0);
when "10" =>
mapAddr_s <= romSlot2_s(5 downto 0);
when others =>
mapAddr_s <= (others=>'0');
end case;
end process;
--drive chip select lines
chipSelect: process( addr_s, ramEn_s, nCE_p )
begin
nSRAMWE_p <= '1';
nSRAMCE_p <= '1';
nRomCE_s <= '1';
case addr_s(15 downto 14) is
--slot 0
when "00" =>
nRomCE_s <= nCE_p;
--slot 1
when "01" =>
nRomCE_s <= nCE_p;
--slot 2
when "10" =>
--RAM mapping has priority in Slot 2
if ramEn_s = '1' then
nSRAMCE_p <= nCE_p;
nSRAMWE_p <= nWR_p;
else
--select upper or lower ROM based on A19
nRomCE_s <= nCE_p;
end if;
when others =>
--don't drive anything in slot 4
nSRAMWE_p <= '1';
nSRAMCE_p <= '1';
nRomCE_s <= '1';
end case;
end process;
end SMSMapper_a; | gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_test7.vhd | 2 | 629 | --
-- Author: Pawel Szostek ([email protected])
-- Date: 28.07.2011
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity dummy is
port (
input : in std_logic_vector(7 downto 0);
output : out std_logic_vector(7 downto 0)
);
end;
architecture behaviour of dummy is
begin
L: process(input)
variable tmp : std_logic_vector(7 downto 0);
begin
tmp := input; -- use multiple assignments to the same variable
tmp := (7 => input(7), others => '1'); -- inluding slices in a process
output <= tmp;
end process;
end;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_ssub23_stdlogic.vhd | 4 | 304 | library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity ssub23 is
port (
a_i : in signed (22 downto 0);
b_i : in signed (22 downto 0);
c_o : out signed (22 downto 0)
);
end entity ssub23;
architecture rtl of ssub23 is
begin
c_o <= a_i - b_i;
end architecture rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/work7b/fdc.vhd | 8 | 432 | -- a D-type flip-flop with synchronous reset
library ieee;
use ieee.std_logic_1164.all;
entity fdc is
port (clk: in std_logic;
reset: in std_logic;
d: in std_logic;
q: out std_logic
);
end fdc;
architecture fdc_rtl of fdc is
begin
i_finish: process (clk)
begin
if (clk'event and clk = '1') then
if (reset = '1') then
q <= '0';
else
q <= d;
end if;
end if;
end process;
end fdc_rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_notg_stdlogic.vhd | 4 | 264 | library IEEE;
use IEEE.std_logic_1164.all;
entity not_gate is
port (
a_i : in std_logic; -- inputs
c_o : out std_logic -- output
);
end entity not_gate;
architecture rtl of not_gate is
begin
c_o <= not a_i;
end architecture rtl;
| gpl-2.0 |
steveicarus/iverilog | ivtest/ivltests/vhdl_and_gate.vhd | 8 | 295 | library IEEE;
use IEEE.std_logic_1164.all;
entity and_gate is
port (
a_i : in std_logic; -- inputs
b_i : in std_logic;
c_o : out std_logic -- output
);
end entity and_gate;
architecture rtl of and_gate is
begin
c_o <= a_i and b_i;
end architecture rtl;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/lib/gaisler/misc/grgpio.in.vhd | 6 | 208 | -- GPIO port
constant CFG_GRGPIO_ENABLE : integer := CONFIG_GRGPIO_ENABLE;
constant CFG_GRGPIO_IMASK : integer := 16#CONFIG_GRGPIO_IMASK#;
constant CFG_GRGPIO_WIDTH : integer := CONFIG_GRGPIO_WIDTH;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/lib/grlib/stdlib/stdlib.vhd | 1 | 19811 | ------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2014, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------
-- Package: stdlib
-- File: stdlib.vhd
-- Author: Jiri Gaisler - Gaisler Research
-- Description: Package for common VHDL functions
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
-- pragma translate_off
use std.textio.all;
-- pragma translate_on
library grlib;
use grlib.version.all;
package stdlib is
constant LIBVHDL_VERSION : integer := grlib_version;
constant LIBVHDL_BUILD : integer := grlib_build;
-- pragma translate_off
constant LIBVHDL_DATE : string := grlib_date;
-- pragma translate_on
constant zero32 : std_logic_vector(31 downto 0) := (others => '0');
constant zero64 : std_logic_vector(63 downto 0) := (others => '0');
constant zero128 : std_logic_vector(127 downto 0) := (others => '0');
constant one32 : std_logic_vector(31 downto 0) := (others => '1');
constant one64 : std_logic_vector(63 downto 0) := (others => '1');
constant one128 : std_logic_vector(127 downto 0) := (others => '1');
type log2arr is array(0 to 512) of integer;
constant log2 : log2arr := (
0,0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
others => 9);
constant log2x : log2arr := (
0,1,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
others => 9);
function log2ext(i: integer) return integer;
function decode(v : std_logic_vector) return std_logic_vector;
function genmux(s,v : std_logic_vector) return std_ulogic;
function xorv(d : std_logic_vector) return std_ulogic;
function orv(d : std_logic_vector) return std_ulogic;
function andv(d : std_logic_vector) return std_ulogic;
function notx(d : std_logic_vector) return boolean;
function notx(d : std_ulogic) return boolean;
function "-" (d : std_logic_vector; i : integer) return std_logic_vector;
function "-" (i : integer; d : std_logic_vector) return std_logic_vector;
function "+" (d : std_logic_vector; i : integer) return std_logic_vector;
function "+" (i : integer; d : std_logic_vector) return std_logic_vector;
function "-" (d : std_logic_vector; i : std_ulogic) return std_logic_vector;
function "+" (d : std_logic_vector; i : std_ulogic) return std_logic_vector;
function "-" (a, b : std_logic_vector) return std_logic_vector;
function "+" (a, b : std_logic_vector) return std_logic_vector;
function "*" (a, b : std_logic_vector) return std_logic_vector;
function unsigned_mul (a, b : std_logic_vector) return std_logic_vector;
function signed_mul (a, b : std_logic_vector) return std_logic_vector;
function mixed_mul (a, b : std_logic_vector; sign : std_logic) return std_logic_vector;
--function ">" (a, b : std_logic_vector) return boolean;
function "<" (i : integer; b : std_logic_vector) return boolean;
function conv_integer(v : std_logic_vector) return integer;
function conv_integer(v : std_logic) return integer;
function conv_std_logic_vector(i : integer; w : integer) return std_logic_vector;
function conv_std_logic_vector_signed(i : integer; w : integer) return std_logic_vector;
function conv_std_logic(b : boolean) return std_ulogic;
attribute sync_set_reset : string;
attribute async_set_reset : string;
-- Reporting and diagnostics
-- pragma translate_off
function tost(v:std_logic_vector) return string;
function tost(v:std_logic) return string;
function tost(i : integer) return string;
function tost_any(s: std_ulogic) return string;
function tost_bits(s: std_logic_vector) return string;
function tost(b: boolean) return string;
function tost(r: real) return string;
procedure print(s : string);
component report_version
generic (msg1, msg2, msg3, msg4 : string := ""; mdel : integer := 4);
end component;
component report_design
generic (msg1, fabtech, memtech : string := ""; mdel : integer := 4);
end component;
-- pragma translate_on
function unary_to_slv(i: std_logic_vector) return std_logic_vector;
end;
package body stdlib is
function notx(d : std_logic_vector) return boolean is
variable res : boolean;
begin
res := true;
-- pragma translate_off
res := not is_x(d);
-- pragma translate_on
return (res);
end;
function notx(d : std_ulogic) return boolean is
variable res : boolean;
begin
res := true;
-- pragma translate_off
res := not is_x(d);
-- pragma translate_on
return (res);
end;
-- generic decoder
function decode(v : std_logic_vector) return std_logic_vector is
variable res : std_logic_vector((2**v'length)-1 downto 0);
variable i : integer range res'range;
begin
res := (others => '0'); i := 0;
if notx(v) then i := to_integer(unsigned(v)); end if;
res(i) := '1';
return(res);
end;
-- generic multiplexer
function genmux(s,v : std_logic_vector) return std_ulogic is
variable res : std_logic_vector(v'length-1 downto 0);
variable i : integer range res'range;
begin
res := v; i := 0;
if notx(s) then i := to_integer(unsigned(s)); end if;
return(res(i));
end;
-- vector XOR
function xorv(d : std_logic_vector) return std_ulogic is
variable tmp : std_ulogic;
begin
tmp := '0';
for i in d'range loop tmp := tmp xor d(i); end loop;
return(tmp);
end;
-- vector OR
function orv(d : std_logic_vector) return std_ulogic is
variable tmp : std_ulogic;
begin
tmp := '0';
for i in d'range loop tmp := tmp or d(i); end loop;
return(tmp);
end;
-- vector AND
function andv(d : std_logic_vector) return std_ulogic is
variable tmp : std_ulogic;
begin
tmp := '1';
for i in d'range loop tmp := tmp and d(i); end loop;
return(tmp);
end;
-- unsigned multiplication
function "*" (a, b : std_logic_vector) return std_logic_vector is
variable z : std_logic_vector(a'length+b'length-1 downto 0);
begin
-- pragma translate_off
if notx(a&b) then
-- pragma translate_on
return(std_logic_vector(unsigned(a) * unsigned(b)));
-- pragma translate_off
else
z := (others =>'X'); return(z);
end if;
-- pragma translate_on
end;
-- signed multiplication
function signed_mul (a, b : std_logic_vector) return std_logic_vector is
variable z : std_logic_vector(a'length+b'length-1 downto 0);
begin
-- pragma translate_off
if notx(a&b) then
-- pragma translate_on
return(std_logic_vector(signed(a) * signed(b)));
-- pragma translate_off
else
z := (others =>'X'); return(z);
end if;
-- pragma translate_on
end;
-- unsigned multiplication
function unsigned_mul (a, b : std_logic_vector) return std_logic_vector is
variable z : std_logic_vector(a'length+b'length-1 downto 0);
begin
-- pragma translate_off
if notx(a&b) then
-- pragma translate_on
return(std_logic_vector(unsigned(a) * unsigned(b)));
-- pragma translate_off
else
z := (others =>'X'); return(z);
end if;
-- pragma translate_on
end;
-- signed/unsigned multiplication
function mixed_mul (a, b : std_logic_vector; sign : std_logic) return std_logic_vector is
variable z : std_logic_vector(a'length+b'length-1 downto 0);
begin
-- pragma translate_off
if notx(a&b) then
-- pragma translate_on
if sign = '0' then
return(std_logic_vector(unsigned(a) * unsigned(b)));
else
return(std_logic_vector(signed(a) * signed(b)));
end if;
-- pragma translate_off
else
z := (others =>'X'); return(z);
end if;
-- pragma translate_on
end;
-- unsigned addition
function "+" (a, b : std_logic_vector) return std_logic_vector is
variable x : std_logic_vector(a'length-1 downto 0);
variable y : std_logic_vector(b'length-1 downto 0);
begin
-- pragma translate_off
if notx(a&b) then
-- pragma translate_on
return(std_logic_vector(unsigned(a) + unsigned(b)));
-- pragma translate_off
else
x := (others =>'X'); y := (others =>'X');
if (x'length > y'length) then return(x); else return(y); end if;
end if;
-- pragma translate_on
end;
function "+" (i : integer; d : std_logic_vector) return std_logic_vector is
variable x : std_logic_vector(d'length-1 downto 0);
begin
-- pragma translate_off
if notx(d) then
-- pragma translate_on
return(std_logic_vector(unsigned(d) + i));
-- pragma translate_off
else x := (others =>'X'); return(x);
end if;
-- pragma translate_on
end;
function "+" (d : std_logic_vector; i : integer) return std_logic_vector is
variable x : std_logic_vector(d'length-1 downto 0);
begin
-- pragma translate_off
if notx(d) then
-- pragma translate_on
return(std_logic_vector(unsigned(d) + i));
-- pragma translate_off
else x := (others =>'X'); return(x);
end if;
-- pragma translate_on
end;
function "+" (d : std_logic_vector; i : std_ulogic) return std_logic_vector is
variable x : std_logic_vector(d'length-1 downto 0);
variable y : std_logic_vector(0 downto 0);
begin
y(0) := i;
-- pragma translate_off
if notx(d) then
-- pragma translate_on
return(std_logic_vector(unsigned(d) + unsigned(y)));
-- pragma translate_off
else x := (others =>'X'); return(x);
end if;
-- pragma translate_on
end;
-- unsigned subtraction
function "-" (a, b : std_logic_vector) return std_logic_vector is
variable x : std_logic_vector(a'length-1 downto 0);
variable y : std_logic_vector(b'length-1 downto 0);
begin
-- pragma translate_off
if notx(a&b) then
-- pragma translate_on
return(std_logic_vector(unsigned(a) - unsigned(b)));
-- pragma translate_off
else
x := (others =>'X'); y := (others =>'X');
if (x'length > y'length) then return(x); else return(y); end if;
end if;
-- pragma translate_on
end;
function "-" (d : std_logic_vector; i : integer) return std_logic_vector is
variable x : std_logic_vector(d'length-1 downto 0);
begin
-- pragma translate_off
if notx(d) then
-- pragma translate_on
return(std_logic_vector(unsigned(d) - i));
-- pragma translate_off
else x := (others =>'X'); return(x);
end if;
-- pragma translate_on
end;
function "-" (i : integer; d : std_logic_vector) return std_logic_vector is
variable x : std_logic_vector(d'length-1 downto 0);
begin
-- pragma translate_off
if notx(d) then
-- pragma translate_on
return(std_logic_vector(i - unsigned(d)));
-- pragma translate_off
else x := (others =>'X'); return(x);
end if;
-- pragma translate_on
end;
function "-" (d : std_logic_vector; i : std_ulogic) return std_logic_vector is
variable x : std_logic_vector(d'length-1 downto 0);
variable y : std_logic_vector(0 downto 0);
begin
y(0) := i;
-- pragma translate_off
if notx(d) then
-- pragma translate_on
return(std_logic_vector(unsigned(d) - unsigned(y)));
-- pragma translate_off
else x := (others =>'X'); return(x);
end if;
-- pragma translate_on
end;
function ">=" (a, b : std_logic_vector) return boolean is
begin
return(unsigned(a) >= unsigned(b));
end;
function "<" (i : integer; b : std_logic_vector) return boolean is
begin
return( i < to_integer(unsigned(b)));
end;
function ">" (a, b : std_logic_vector) return boolean is
begin
return(unsigned(a) > unsigned(b));
end;
function conv_integer(v : std_logic_vector) return integer is
begin
if notx(v) then return(to_integer(unsigned(v)));
else return(0); end if;
end;
function conv_integer(v : std_logic) return integer is
begin
if notx(v) then
if v = '1' then return(1);
else return(0); end if;
else return(0); end if;
end;
function conv_std_logic_vector(i : integer; w : integer) return std_logic_vector is
variable tmp : std_logic_vector(w-1 downto 0);
begin
tmp := std_logic_vector(to_unsigned(i, w));
return(tmp);
end;
function conv_std_logic_vector_signed(i : integer; w : integer) return std_logic_vector is
variable tmp : std_logic_vector(w-1 downto 0);
begin
tmp := std_logic_vector(to_signed(i, w));
return(tmp);
end;
function conv_std_logic(b : boolean) return std_ulogic is
begin
if b then return('1'); else return('0'); end if;
end;
function log2ext(i: integer) return integer is
-- variable v: std_logic_vector(31 downto 0);
begin
-- workaround for DC bug
-- if i=0 then return 0; end if;
-- v := std_logic_vector(to_unsigned((i-1),v'length));
-- for x in v'high downto v'low loop
-- if v(x)='1' then return x+1; end if;
-- end loop;
-- return 0;
for x in 1 to 32 loop
if (2**x > i) then return (x-1); end if;
end loop;
return 32;
end;
-- pragma translate_off
subtype nibble is std_logic_vector(3 downto 0);
function todec(i:integer) return character is
begin
case i is
when 0 => return('0');
when 1 => return('1');
when 2 => return('2');
when 3 => return('3');
when 4 => return('4');
when 5 => return('5');
when 6 => return('6');
when 7 => return('7');
when 8 => return('8');
when 9 => return('9');
when others => return('0');
end case;
end;
function tohex(n:nibble) return character is
begin
case n is
when "0000" => return('0');
when "0001" => return('1');
when "0010" => return('2');
when "0011" => return('3');
when "0100" => return('4');
when "0101" => return('5');
when "0110" => return('6');
when "0111" => return('7');
when "1000" => return('8');
when "1001" => return('9');
when "1010" => return('a');
when "1011" => return('b');
when "1100" => return('c');
when "1101" => return('d');
when "1110" => return('e');
when "1111" => return('f');
when others => return('X');
end case;
end;
function tost(v:std_logic_vector) return string is
constant vlen : natural := v'length; --'
constant slen : natural := (vlen+3)/4;
variable vv : std_logic_vector(0 to slen*4-1) := (others => '0');
variable s : string(1 to slen);
variable nz : boolean := false;
variable index : integer := -1;
begin
vv(slen*4-vlen to slen*4-1) := v;
for i in 0 to slen-1 loop
if (vv(i*4 to i*4+3) = "0000") and nz and (i /= (slen-1)) then
index := i;
else
nz := false;
s(i+1) := tohex(vv(i*4 to i*4+3));
end if;
end loop;
if ((index +2) = slen) then return(s(slen to slen));
else return(string'("0x") & s(index+2 to slen)); end if; --'
end;
function tost(v:std_logic) return string is
begin
if to_x01(v) = '1' then return("1"); else return("0"); end if;
end;
function tost_any(s: std_ulogic) return string is
begin
case s is
when '1' => return "1";
when '0' => return "0";
when '-' => return "-";
when 'U' => return "U";
when 'X' => return "X";
when 'Z' => return "Z";
when 'H' => return "H";
when 'L' => return "L";
when 'W' => return "W";
end case;
end;
function tost_bits(s: std_logic_vector) return string is
constant len: natural := s'length;
variable str: string(1 to len);
variable i: integer;
begin
i := 1;
for x in s'range loop
str(i to i) := tost_any(s(x));
i := i+1;
end loop;
return str;
end;
function tost(b: boolean) return string is
begin
if b then return "true"; else return "false"; end if;
end tost;
function tost(i : integer) return string is
variable L : line;
variable s, x : string(1 to 128);
variable n, tmp : integer := 0;
begin
tmp := i;
if i < 0 then tmp := -i; end if;
loop
s(128-n) := todec(tmp mod 10);
tmp := tmp / 10;
n := n+1;
if tmp = 0 then exit; end if;
end loop;
x(1 to n) := s(129-n to 128);
if i < 0 then return "-" & x(1 to n); end if;
return(x(1 to n));
end;
function tost(r: real) return string is
variable x: real;
variable i,j: integer;
variable s: string(1 to 30);
variable c: character;
begin
if r = 0.0 then
return "0.0000";
elsif r < 0.0 then
return "-" & tost(-r);
elsif r < 0.001 then
x:=r; i:=0;
while x<1.0 loop x:=x*10.0; i:=i+1; end loop;
return tost(x) & "e-" & tost(i);
elsif r >= 1000000.0 then
x:=10000000.0; i:=6;
while r>=x loop x:=x*10.0; i:=i+1; end loop;
return tost(10.0*r/x) & "e+" & tost(i);
else
i:=0; x:=r+0.00005;
while x >= 10.0 loop x:=x/10.0; i:=i+1; end loop;
j := 1;
while i > -5 loop
if x >= 9.0 then c:='9'; x:=x-9.0;
elsif x >= 8.0 then c:='8'; x:=x-8.0;
elsif x >= 7.0 then c:='7'; x:=x-7.0;
elsif x >= 6.0 then c:='6'; x:=x-6.0;
elsif x >= 5.0 then c:='5'; x:=x-5.0;
elsif x >= 4.0 then c:='4'; x:=x-4.0;
elsif x >= 3.0 then c:='3'; x:=x-3.0;
elsif x >= 2.0 then c:='2'; x:=x-2.0;
elsif x >= 1.0 then c:='1'; x:=x-1.0;
else c:='0';
end if;
s(j) := c;
j:=j+1;
if i=0 then s(j):='.'; j:=j+1; end if;
i:=i-1;
x := x * 10.0;
end loop;
return s(1 to j-1);
end if;
end tost;
procedure print(s : string) is
variable L : line;
begin
L := new string'(s); writeline(output, L);
end;
-- pragma translate_on
function unary_to_slv(i: std_logic_vector) return std_logic_vector is
variable o : std_logic_vector(log2(i'length)-1 downto 0);
begin
-- -- 16 bits unary to binary conversion
-- o(0) := i(1) or i(3) or i(5) or i(7) or i(9) or i(11) or i(13) or i(15);
-- o(1) := i(2) or i(3) or i(6) or i(7) or i(10) or i(11) or i(14) or i(15);
-- o(2) := i(4) or i(5) or i(6) or i(7) or i(12) or i(13) or i(14) or i(15);
-- o(3) := i(8) or i(9) or i(10) or i(11) or i(12) or i(13) or i(14) or i(15);
--
-- -- parametrized conversion
--
-- o(0) := i(1);
--
-- o(0) := unary_to_slv(i(3 downto 2)) or unary_to_slv(i(1 downto 0));
-- o(1) := orv(i(3 downto 2));
--
-- o(1 downto 0) := unary_to_slv(i(7 downto 4)) or unary_to_slv(i(3 downto 0));
-- o(2) := orv(i(7 downto 4));
--
-- o(2 downto 0) := unary_to_slv(i(15 downto 8)) or unary_to_slv(i(7 downto 0));
-- o(3) := orv(i(15 downto 8));
--
assert i'length = 0 or i'length = 2**log2(i'length)
report "unary_to_slv: input vector size must be power of 2"
severity failure;
if i'length > 2 then
-- recursion on left and right halves
o(log2(i'length)-2 downto 0) := unary_to_slv(i(i'left downto (i'left-i'length/2+1))) or unary_to_slv(i((i'left-i'length/2) downto i'right));
o(log2(i'length)-1) := orv(i(i'left downto (i'left-i'length/2+1)));
else
o(0 downto 0) := ( 0 => i(i'left));
end if;
return o;
end unary_to_slv;
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/boards/altera-c5ekit/syspll1.vhd | 3 | 15913 | -- megafunction wizard: %Altera PLL v13.0%
-- GENERATION: XML
-- syspll1.vhd
-- Generated using ACDS version 13.0 156 at 2013.07.12.16:42:19
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;
entity syspll1 is
port (
refclk : in std_logic := '0'; -- refclk.clk
rst : in std_logic := '0'; -- reset.reset
outclk_0 : out std_logic; -- outclk0.clk
locked : out std_logic -- locked.export
);
end entity syspll1;
architecture rtl of syspll1 is
component syspll1_0002 is
port (
refclk : in std_logic := 'X'; -- clk
rst : in std_logic := 'X'; -- reset
outclk_0 : out std_logic; -- clk
locked : out std_logic -- export
);
end component syspll1_0002;
begin
syspll1_inst : component syspll1_0002
port map (
refclk => refclk, -- refclk.clk
rst => rst, -- reset.reset
outclk_0 => outclk_0, -- outclk0.clk
locked => locked -- locked.export
);
end architecture rtl; -- of syspll1
-- Retrieval info: <?xml version="1.0"?>
--<!--
-- Generated by Altera MegaWizard Launcher Utility version 1.0
-- ************************************************************
-- THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
-- ************************************************************
-- Copyright (C) 1991-2013 Altera Corporation
-- Any megafunction design, and related net list (encrypted or decrypted),
-- support information, device programming or simulation file, and any other
-- associated documentation or information provided by Altera or a partner
-- under Altera's Megafunction Partnership Program may be used only to
-- program PLD devices (but not masked PLD devices) from Altera. Any other
-- use of such megafunction design, net list, support information, device
-- programming or simulation file, or any other related documentation or
-- information is prohibited for any other purpose, including, but not
-- limited to modification, reverse engineering, de-compiling, or use with
-- any other silicon devices, unless such use is explicitly licensed under
-- a separate agreement with Altera or a megafunction partner. Title to
-- the intellectual property, including patents, copyrights, trademarks,
-- trade secrets, or maskworks, embodied in any such megafunction design,
-- net list, support information, device programming or simulation file, or
-- any other related documentation or information provided by Altera or a
-- megafunction partner, remains with Altera, the megafunction partner, or
-- their respective licensors. No other licenses, including any licenses
-- needed under any third party's intellectual property, are provided herein.
---->
-- Retrieval info: <instance entity-name="altera_pll" version="13.0" >
-- Retrieval info: <generic name="device_family" value="Cyclone V" />
-- Retrieval info: <generic name="gui_device_speed_grade" value="7" />
-- Retrieval info: <generic name="gui_pll_mode" value="Integer-N PLL" />
-- Retrieval info: <generic name="gui_reference_clock_frequency" value="50.0" />
-- Retrieval info: <generic name="gui_channel_spacing" value="0.0" />
-- Retrieval info: <generic name="gui_operation_mode" value="normal" />
-- Retrieval info: <generic name="gui_feedback_clock" value="Global Clock" />
-- Retrieval info: <generic name="gui_fractional_cout" value="32" />
-- Retrieval info: <generic name="gui_dsm_out_sel" value="1st_order" />
-- Retrieval info: <generic name="gui_use_locked" value="true" />
-- Retrieval info: <generic name="gui_en_adv_params" value="false" />
-- Retrieval info: <generic name="gui_number_of_clocks" value="1" />
-- Retrieval info: <generic name="gui_multiply_factor" value="1" />
-- Retrieval info: <generic name="gui_frac_multiply_factor" value="1" />
-- Retrieval info: <generic name="gui_divide_factor_n" value="1" />
-- Retrieval info: <generic name="gui_output_clock_frequency0" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c0" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency0" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units0" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift0" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg0" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift0" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle0" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency1" value="75.0" />
-- Retrieval info: <generic name="gui_divide_factor_c1" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency1" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units1" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift1" value="-500" />
-- Retrieval info: <generic name="gui_phase_shift_deg1" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift1" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle1" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency2" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c2" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency2" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units2" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift2" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg2" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift2" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle2" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency3" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c3" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency3" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units3" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift3" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg3" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift3" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle3" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency4" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c4" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency4" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units4" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift4" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg4" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift4" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle4" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency5" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c5" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency5" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units5" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift5" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg5" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift5" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle5" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency6" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c6" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency6" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units6" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift6" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg6" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift6" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle6" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency7" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c7" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency7" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units7" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift7" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg7" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift7" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle7" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency8" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c8" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency8" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units8" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift8" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg8" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift8" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle8" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency9" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c9" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency9" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units9" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift9" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg9" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift9" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle9" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency10" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c10" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency10" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units10" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift10" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg10" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift10" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle10" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency11" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c11" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency11" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units11" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift11" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg11" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift11" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle11" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency12" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c12" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency12" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units12" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift12" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg12" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift12" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle12" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency13" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c13" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency13" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units13" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift13" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg13" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift13" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle13" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency14" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c14" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency14" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units14" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift14" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg14" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift14" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle14" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency15" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c15" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency15" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units15" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift15" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg15" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift15" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle15" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency16" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c16" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency16" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units16" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift16" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg16" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift16" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle16" value="50" />
-- Retrieval info: <generic name="gui_output_clock_frequency17" value="100.0" />
-- Retrieval info: <generic name="gui_divide_factor_c17" value="1" />
-- Retrieval info: <generic name="gui_actual_output_clock_frequency17" value="0 MHz" />
-- Retrieval info: <generic name="gui_ps_units17" value="ps" />
-- Retrieval info: <generic name="gui_phase_shift17" value="0" />
-- Retrieval info: <generic name="gui_phase_shift_deg17" value="0" />
-- Retrieval info: <generic name="gui_actual_phase_shift17" value="0" />
-- Retrieval info: <generic name="gui_duty_cycle17" value="50" />
-- Retrieval info: <generic name="gui_pll_auto_reset" value="Off" />
-- Retrieval info: <generic name="gui_pll_bandwidth_preset" value="Auto" />
-- Retrieval info: <generic name="gui_en_reconf" value="false" />
-- Retrieval info: <generic name="gui_en_dps_ports" value="false" />
-- Retrieval info: <generic name="gui_en_phout_ports" value="false" />
-- Retrieval info: <generic name="gui_mif_generate" value="false" />
-- Retrieval info: <generic name="gui_enable_mif_dps" value="false" />
-- Retrieval info: <generic name="gui_dps_cntr" value="C0" />
-- Retrieval info: <generic name="gui_dps_num" value="1" />
-- Retrieval info: <generic name="gui_dps_dir" value="Positive" />
-- Retrieval info: <generic name="gui_refclk_switch" value="false" />
-- Retrieval info: <generic name="gui_refclk1_frequency" value="100.0" />
-- Retrieval info: <generic name="gui_switchover_mode" value="Automatic Switchover" />
-- Retrieval info: <generic name="gui_switchover_delay" value="0" />
-- Retrieval info: <generic name="gui_active_clk" value="false" />
-- Retrieval info: <generic name="gui_clk_bad" value="false" />
-- Retrieval info: <generic name="gui_enable_cascade_out" value="false" />
-- Retrieval info: <generic name="gui_enable_cascade_in" value="false" />
-- Retrieval info: <generic name="gui_pll_cascading_mode" value="Create an adjpllin signal to connect with an upstream PLL" />
-- Retrieval info: <generic name="AUTO_REFCLK_CLOCK_RATE" value="-1" />
-- Retrieval info: </instance>
-- IPFS_FILES : syspll1.vho
-- RELATED_FILES: syspll1.vhd, syspll1_0002.v
| gpl-2.0 |
a4a881d4/ringbus4xilinx | src/config/dma_config.vhd | 2 | 2122 | ---------------------------------------------------------------------------------------------------
--
-- Title : dma_config
-- Design : ring bus
-- Author : Zhao Ming
-- Company : a4a881d4
--
---------------------------------------------------------------------------------------------------
--
-- File : dma_config.vhd
-- Generated : 2013/9/10
-- From :
-- By :
--
---------------------------------------------------------------------------------------------------
--
-- Description : dma reg config
--
-- Rev: 3.1
--
---------------------------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.all;
package dma_config is
-- DMA reg
constant reg_RESET : std_logic_vector( 3 downto 0 ) := "0000";
constant reg_START : std_logic_vector( 3 downto 0 ) := "1111";
constant reg_DADDR : std_logic_vector( 3 downto 0 ) := "0001";
constant reg_SADDR : std_logic_vector( 3 downto 0 ) := "0010";
constant reg_LEN : std_logic_vector( 3 downto 0 ) := "0011";
-- BUS reg
constant reg_BADDR : std_logic_vector( 3 downto 0 ) := "0100";
constant reg_BID : std_logic_vector( 3 downto 0 ) := "0101";
--
constant reg_BUSY : std_logic_vector( 3 downto 0 ) := "0000";
constant max_payload : natural := 32;
component DMANP
generic(
Bwidth : natural := 128;
SAwidth : natural := 16;
DAwidth : natural := 32;
Lwidth : natural := 16
);
port(
-- system signal
clk : in STD_LOGIC;
rst : in STD_LOGIC;
-- Tx interface
header: out std_logic_vector(Bwidth-1 downto 0);
Req : out std_logic;
laddr : out std_logic_vector(SAwidth-1 downto 0);
busy : in std_logic;
tx_sop : in std_logic;
-- CPU bus
CS : in std_logic;
wr : in std_logic;
rd : in std_logic;
addr : in std_logic_vector( 3 downto 0 );
Din : in std_logic_vector( 7 downto 0 );
Dout : out std_logic_vector( 7 downto 0 );
cpuClk : in std_logic;
-- Priority
en : in std_logic
);
end component;
end dma_config;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/designs/leon3-asic/leon3core.vhd | 1 | 32942 | -----------------------------------------------------------------------------
-- LEON3 Demonstration design
-- Copyright (C) 2013 Fredrik Ringhage, Aeroflex Gaisler
------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2014, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.all;
use grlib.stdlib.all;
use grlib.devices.all;
library techmap;
use techmap.gencomp.all;
library gaisler;
use gaisler.memctrl.all;
use gaisler.leon3.all;
use gaisler.uart.all;
use gaisler.i2c.all;
use gaisler.spi.all;
use gaisler.misc.all;
use gaisler.jtag.all;
use gaisler.spacewire.all;
use gaisler.net.all;
library esa;
use esa.memoryctrl.all;
use work.config.all;
entity leon3core is
generic (
fabtech : integer := CFG_FABTECH;
memtech : integer := CFG_MEMTECH;
padtech : integer := CFG_PADTECH;
clktech : integer := CFG_CLKTECH;
disas : integer := CFG_DISAS; -- Enable disassembly to console
dbguart : integer := CFG_DUART; -- Print UART on console
pclow : integer := CFG_PCLOW;
scantest : integer := CFG_SCAN
);
port (
resetn : in std_ulogic;
clksel : in std_logic_vector(1 downto 0);
clk : in std_ulogic;
clkapb : in std_ulogic;
clklock : in std_ulogic;
errorn : out std_ulogic;
address : out std_logic_vector(27 downto 0);
datain : in std_logic_vector(31 downto 0);
dataout : out std_logic_vector(31 downto 0);
dataen : out std_logic_vector(31 downto 0);
cbin : in std_logic_vector(7 downto 0);
cbout : out std_logic_vector(7 downto 0);
cben : out std_logic_vector(7 downto 0);
sdcsn : out std_logic_vector (1 downto 0); -- sdram chip select
sdwen : out std_ulogic; -- sdram write enable
sdrasn : out std_ulogic; -- sdram ras
sdcasn : out std_ulogic; -- sdram cas
sddqm : out std_logic_vector (3 downto 0); -- sdram dqm
dsutx : out std_ulogic; -- DSU tx data
dsurx : in std_ulogic; -- DSU rx data
dsuen : in std_ulogic;
dsubre : in std_ulogic;
dsuact : out std_ulogic;
txd1 : out std_ulogic; -- UART1 tx data
rxd1 : in std_ulogic; -- UART1 rx data
txd2 : out std_ulogic; -- UART2 tx data
rxd2 : in std_ulogic; -- UART2 rx data
ramsn : out std_logic_vector (4 downto 0);
ramoen : out std_logic_vector (4 downto 0);
rwen : out std_logic_vector (3 downto 0);
oen : out std_ulogic;
writen : out std_ulogic;
read : out std_ulogic;
iosn : out std_ulogic;
romsn : out std_logic_vector (1 downto 0);
brdyn : in std_ulogic;
bexcn : in std_ulogic;
wdogn : out std_ulogic;
gpioin : in std_logic_vector(CFG_GRGPIO_WIDTH-1 downto 0); -- I/O port
gpioout : out std_logic_vector(CFG_GRGPIO_WIDTH-1 downto 0); -- I/O port
gpioen : out std_logic_vector(CFG_GRGPIO_WIDTH-1 downto 0); -- I/O port
i2c_sclout : out std_ulogic;
i2c_sclen : out std_ulogic;
i2c_sclin : in std_ulogic;
i2c_sdaout : out std_ulogic;
i2c_sdaen : out std_ulogic;
i2c_sdain : in std_ulogic;
spi_miso : in std_ulogic;
spi_mosi : out std_ulogic;
spi_sck : out std_ulogic;
spi_slvsel : out std_logic_vector(CFG_SPICTRL_SLVS-1 downto 0);
prom32 : in std_ulogic;
spw_clksel : in std_logic_vector(1 downto 0);
spw_clk : in std_ulogic;
spw_rxd : in std_logic_vector(0 to CFG_SPW_NUM-1);
spw_rxs : in std_logic_vector(0 to CFG_SPW_NUM-1);
spw_txd : out std_logic_vector(0 to CFG_SPW_NUM-1);
spw_txs : out std_logic_vector(0 to CFG_SPW_NUM-1);
gtx_clk : in std_ulogic;
erx_clk : in std_ulogic;
erxd : in std_logic_vector(7 downto 0);
erx_dv : in std_ulogic;
etx_clk : in std_ulogic;
etxd : out std_logic_vector(7 downto 0);
etx_en : out std_ulogic;
etx_er : out std_ulogic;
erx_er : in std_ulogic;
erx_col : in std_ulogic;
erx_crs : in std_ulogic;
emdint : in std_ulogic;
emdioin : in std_logic;
emdioout : out std_logic;
emdioen : out std_logic;
emdc : out std_ulogic;
trst : in std_ulogic;
tck : in std_ulogic;
tms : in std_ulogic;
tdi : in std_ulogic;
tdo : out std_ulogic;
tdoen : out std_ulogic;
scanen : in std_ulogic;
testen : in std_ulogic;
testrst : in std_ulogic;
testoen : in std_ulogic;
chain_tck : out std_ulogic;
chain_tckn : out std_ulogic;
chain_tdi : out std_ulogic;
chain_tdo : in std_ulogic;
bsshft : out std_ulogic;
bscapt : out std_ulogic;
bsupdi : out std_ulogic;
bsupdo : out std_ulogic;
bsdrive : out std_ulogic;
bshighz : out std_ulogic
);
end;
architecture rtl of leon3core is
--constant is_asic : integer := 1 - is_fpga(fabtech);
--constant blength : integer := 12;
--constant CFG_NCLKS : integer := 7;
constant maxahbmsp : integer := CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG+CFG_GRETH;
constant maxahbm : integer := (CFG_SPW_NUM*CFG_SPW_EN) + maxahbmsp;
signal vcc, gnd : std_logic_vector(4 downto 0);
signal memi : memory_in_type;
signal memo : memory_out_type;
signal wpo : wprot_out_type;
signal sdi : sdctrl_in_type;
signal sdo : sdram_out_type;
signal apbi : apb_slv_in_type;
signal apbo : apb_slv_out_vector := (others => apb_none);
signal ahbsi : ahb_slv_in_type;
signal ahbso : ahb_slv_out_vector := (others => ahbs_none);
signal ahbmi : ahb_mst_in_type;
signal ahbmo : ahb_mst_out_vector := (others => ahbm_none);
signal rstn, rstraw : std_ulogic;
signal rstapbn, rstapbraw : std_ulogic;
signal u1i, u2i, dui : uart_in_type;
signal u1o, u2o, duo : uart_out_type;
signal irqi : irq_in_vector(0 to CFG_NCPU-1);
signal irqo : irq_out_vector(0 to CFG_NCPU-1);
signal dbgi : l3_debug_in_vector(0 to CFG_NCPU-1);
signal dbgo : l3_debug_out_vector(0 to CFG_NCPU-1);
signal dsui : dsu_in_type;
signal dsuo : dsu_out_type;
signal gpti : gptimer_in_type;
signal gpto : gptimer_out_type;
signal gpioi, gpioi2 : gpio_in_type;
signal gpioo, gpioo2 : gpio_out_type;
signal i2ci : i2c_in_type;
signal i2co : i2c_out_type;
signal spii : spi_in_type;
signal spio : spi_out_type;
signal ethi : eth_in_type;
signal etho : eth_out_type;
-- signal tck, tms, tdi, tdo : std_ulogic;
signal jtck, jtckn, jtdi, jrst, jtdo, jcapt, jshft, jupd, jiupd: std_ulogic;
signal jninst: std_logic_vector(7 downto 0);
signal spwi : grspw_in_type_vector(0 to CFG_SPW_NUM-1);
signal spwo : grspw_out_type_vector(0 to CFG_SPW_NUM-1);
signal spw_rxclk : std_logic_vector(CFG_SPW_NUM*2-1 downto 0);
signal dtmp : std_logic_vector(0 to CFG_SPW_NUM-1);
signal stmp : std_logic_vector(0 to CFG_SPW_NUM-1);
signal stati : ahbstat_in_type;
-- SPW Clock Gating signals
signal enphy : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal spwrstn : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal gspwclk : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal rxclko : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal lspwclkn : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal spwclkn : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal rxclkphyo : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal disclk : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal disrxclk0 : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal disrxclk1 : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal distxclk : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal distxclkn : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal gclk : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal grxclk0 : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal grxclk1 : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal gtxclk : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal gtxclkn : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal grst : std_logic_vector(CFG_SPW_NUM-1 downto 0);
signal crst : std_logic_vector(CFG_SPW_NUM-1 downto 0);
constant IOAEN : integer := 0;
constant CFG_SDEN : integer := CFG_MCTRL_LEON2;
constant CFG_INVCLK : integer := CFG_MCTRL_INVCLK;
constant BOARD_FREQ : integer := 50000; -- Board frequency in KHz
constant sysfreq : integer := (CFG_CLKMUL/CFG_CLKDIV)*40000;
constant OEPOL : integer := padoen_polarity(padtech);
constant CPU_FREQ : integer := 100000;
begin
----------------------------------------------------------------------
--- Reset and Clock generation -------------------------------------
----------------------------------------------------------------------
vcc <= (others => '1'); gnd <= (others => '0');
wpo.wprothit <= '0'; -- no write protection
rstgen0 : rstgen -- reset generator
generic map (syncrst => CFG_NOASYNC, scanen => scantest, syncin => 1)
port map (resetn, clk, clklock, rstn, rstraw, testrst);
rstgen1 : rstgen -- reset generator
generic map (syncrst => CFG_NOASYNC, scanen => scantest, syncin => 1)
port map (resetn, clkapb, clklock, rstapbn, rstapbraw, testrst);
----------------------------------------------------------------------
--- AHB CONTROLLER --------------------------------------------------
----------------------------------------------------------------------
ahbctrl0 : ahbctrl -- AHB arbiter/multiplexer
generic map (defmast => CFG_DEFMST, split => CFG_SPLIT,
rrobin => CFG_RROBIN, ioaddr => CFG_AHBIO,
ioen => IOAEN, nahbm => maxahbm, nahbs => 8)
port map (rstn, clk, ahbmi, ahbmo, ahbsi, ahbso,
testen, testrst, scanen, testoen);
----------------------------------------------------------------------
--- LEON3 processor and DSU -----------------------------------------
----------------------------------------------------------------------
cpu : for i in 0 to CFG_NCPU-1 generate
leon3s0 : leon3cg -- LEON3 processor
generic map (i, fabtech, memtech, CFG_NWIN, CFG_DSU, CFG_FPU, CFG_V8,
0, CFG_MAC, pclow, CFG_NOTAG, CFG_NWP, CFG_ICEN, CFG_IREPL, CFG_ISETS, CFG_ILINE,
CFG_ISETSZ, CFG_ILOCK, CFG_DCEN, CFG_DREPL, CFG_DSETS, CFG_DLINE, CFG_DSETSZ,
CFG_DLOCK, CFG_DSNOOP, CFG_ILRAMEN, CFG_ILRAMSZ, CFG_ILRAMADDR, CFG_DLRAMEN,
CFG_DLRAMSZ, CFG_DLRAMADDR, CFG_MMUEN, CFG_ITLBNUM, CFG_DTLBNUM, CFG_TLB_TYPE, CFG_TLB_REP,
CFG_LDDEL, disas, CFG_ITBSZ, CFG_PWD, CFG_SVT, CFG_RSTADDR, CFG_NCPU-1,
CFG_DFIXED, CFG_SCAN, CFG_MMU_PAGE, CFG_BP)
port map (clk, rstn, ahbmi, ahbmo(i), ahbsi, ahbso,
irqi(i), irqo(i), dbgi(i), dbgo(i), clk);
end generate;
errorn <= dbgo(0).error when OEPOL = 0 else not dbgo(0).error;
dsugen : if CFG_DSU = 1 generate
dsu0 : dsu3 -- LEON3 Debug Support Unit
generic map (hindex => 2, haddr => 16#900#, hmask => 16#F00#,
ncpu => CFG_NCPU, tbits => 30, tech => memtech, irq => 0, kbytes => CFG_ATBSZ)
port map (rstn, clk, ahbmi, ahbsi, ahbso(2), dbgo, dbgi, dsui, dsuo);
dsui.enable <= dsuen; dsui.break <= dsubre; dsuact <= dsuo.active;
end generate;
nodsu : if CFG_DSU = 0 generate
ahbso(2) <= ahbs_none; dsuo.tstop <= '0'; dsuo.active <= '0';
end generate;
dcomgen : if CFG_AHB_UART = 1 generate
ahbuart0: ahbuart -- Debug UART
generic map (hindex => CFG_NCPU, pindex => 7, paddr => 7)
port map (rstn, clk, dui, duo, apbi, apbo(7), ahbmi, ahbmo(CFG_NCPU));
dui.rxd <= dsurx; dsutx <= duo.txd;
end generate;
nouah : if CFG_AHB_UART = 0 generate apbo(7) <= apb_none; end generate;
ahbjtaggen0 :if CFG_AHB_JTAG = 1 generate
ahbjtag0 : ahbjtag generic map(tech => fabtech, part => JTAG_EXAMPLE_PART,
hindex => CFG_NCPU+CFG_AHB_UART, scantest => scantest, oepol => OEPOL)
port map(rstn, clk, tck, tms, tdi, tdo, ahbmi, ahbmo(CFG_NCPU+CFG_AHB_UART),
jtck, jtdi, open, jrst, jcapt, jshft, jupd, jtdo, trst, tdoen, '0', jtckn, jninst, jiupd);
end generate;
----------------------------------------------------------------------
--- Memory controllers ----------------------------------------------
----------------------------------------------------------------------
address <= memo.address(27 downto 0);
ramsn <= memo.ramsn(4 downto 0); romsn <= memo.romsn(1 downto 0);
oen <= memo.oen; rwen <= memo.wrn; ramoen <= memo.ramoen(4 downto 0);
writen <= memo.writen; read <= memo.read; iosn <= memo.iosn;
dataout <= memo.data(31 downto 0); dataen <= memo.vbdrive(31 downto 0);
memi.data(31 downto 0) <= datain;
sdwen <= sdo.sdwen; sdrasn <= sdo.rasn; sdcasn <= sdo.casn;
sddqm <= sdo.dqm(3 downto 0); sdcsn <= sdo.sdcsn;
cbout <= memo.cb(7 downto 0); cben <= memo.vcdrive(7 downto 0);
memi.bwidth <= prom32 & '0';
mg2 : if CFG_MCTRL_LEON2 = 1 generate -- LEON2 memory controller
mctrl0 : mctrl generic map (hindex => 0, pindex => 0, paddr => 0,
srbanks => 4+CFG_MCTRL_5CS, sden => CFG_MCTRL_SDEN,
ram8 => CFG_MCTRL_RAM8BIT, ram16 => CFG_MCTRL_RAM16BIT,
invclk => CFG_MCTRL_INVCLK, sepbus => CFG_MCTRL_SEPBUS,
sdbits => 32 + 32*CFG_MCTRL_SD64, pageburst => CFG_MCTRL_PAGE,
oepol => OEPOL)
port map (rstn, clk, memi, memo, ahbsi, ahbso(0), apbi, apbo(0), wpo, sdo);
end generate;
nosd0 : if (CFG_SDEN = 0) generate -- no SDRAM controller
sdo.sdcsn <= (others => '1');
end generate;
memi.writen <= '1'; memi.wrn <= "1111";
memi.brdyn <= brdyn; memi.bexcn <= bexcn;
mg0 : if CFG_MCTRL_LEON2 = 0 generate -- None PROM/SRAM controller
apbo(0) <= apb_none; ahbso(0) <= ahbs_none;
memo.ramsn <= (others => '1'); memo.romsn <= (others => '1');
end generate;
----------------------------------------------------------------------
--- APB Bridge and various periherals -------------------------------
----------------------------------------------------------------------
apbctrl0 : apbctrl -- AHB/APB bridge
generic map (hindex => 1, haddr => CFG_APBADDR)
port map (rstapbn, clkapb, ahbsi, ahbso(1), apbi, apbo );
ua1 : if CFG_UART1_ENABLE /= 0 generate
apbuart0 : apbuart -- UART 1
generic map (pindex => 1, paddr => 1, pirq => 2, console => dbguart,
fifosize => CFG_UART1_FIFO)
port map (rstapbn, clkapb, apbi, apbo(1), u1i, u1o);
u1i.ctsn <= '0'; u1i.extclk <= '0';
txd1 <= u1o.txd; u1i.rxd <= rxd1;
end generate;
noua0 : if CFG_UART1_ENABLE = 0 generate apbo(1) <= apb_none; end generate;
ua2 : if CFG_UART2_ENABLE /= 0 generate
uart2 : apbuart -- UART 2
generic map (pindex => 9, paddr => 9, pirq => 9, fifosize => CFG_UART2_FIFO)
port map (rstapbn, clkapb, apbi, apbo(9), u2i, u2o);
u2i.rxd <= rxd2; u2i.ctsn <= '0'; u2i.extclk <= '0'; txd2 <= u2o.txd;
end generate;
noua1 : if CFG_UART2_ENABLE = 0 generate apbo(9) <= apb_none; end generate;
irqctrl : if CFG_IRQ3_ENABLE /= 0 generate
irqctrl0 : irqmp -- interrupt controller
generic map (pindex => 2, paddr => 2, ncpu => CFG_NCPU)
port map (rstn, clk, apbi, apbo(2), irqo, irqi);
end generate;
irq3 : if CFG_IRQ3_ENABLE = 0 generate
x : for i in 0 to CFG_NCPU-1 generate
irqi(i).irl <= "0000";
end generate;
apbo(2) <= apb_none;
end generate;
gpt : if CFG_GPT_ENABLE /= 0 generate
gptimer0 : gptimer -- timer unit
generic map (pindex => 3, paddr => 3, pirq => CFG_GPT_IRQ,
sepirq => CFG_GPT_SEPIRQ, sbits => CFG_GPT_SW, ntimers => CFG_GPT_NTIM,
nbits => CFG_GPT_TW, wdog => CFG_GPT_WDOGEN*CFG_GPT_WDOG)
port map (rstapbn, clkapb, apbi, apbo(3), gpti, gpto);
gpti.dhalt <= dsuo.tstop; gpti.extclk <= '0';
wdogn <= gpto.wdogn when OEPOL = 0 else gpto.wdog;
end generate;
notim : if CFG_GPT_ENABLE = 0 generate apbo(3) <= apb_none; end generate;
gpio0 : if CFG_GRGPIO_ENABLE /= 0 generate -- GR GPIO unit
grgpio0: grgpio
generic map( pindex => 6, paddr => 6, imask => CFG_GRGPIO_IMASK,
nbits => CFG_GRGPIO_WIDTH, oepol => OEPOL, syncrst => CFG_NOASYNC)
port map( rstapbn, clkapb, apbi, apbo(6), gpioi, gpioo);
gpioout <= gpioo.dout(CFG_GRGPIO_WIDTH-1 downto 0);
gpioen <= gpioo.oen(CFG_GRGPIO_WIDTH-1 downto 0);
gpioi.din(CFG_GRGPIO_WIDTH-1 downto 0) <= gpioin;
end generate;
nogpio : if CFG_GRGPIO_ENABLE = 0 generate apbo(5) <= apb_none; end generate;
i2cm: if CFG_I2C_ENABLE = 1 generate -- I2C master
i2c0 : i2cmst generic map (pindex => 5, paddr => 5, pmask => 16#FFF#, pirq => 13, filter => 9)
port map (rstapbn, clkapb, apbi, apbo(5), i2ci, i2co);
i2c_sclout <= i2co.scl;
i2c_sclen <= i2co.scloen;
i2ci.scl <= i2c_sclin;
i2c_sdaout <= i2co.sda;
i2c_sdaen <= i2co.sdaoen;
i2ci.sda <= i2c_sdain;
end generate i2cm;
noi2cm: if CFG_I2C_ENABLE = 0 generate apbo(5) <= apb_none; end generate;
spic: if CFG_SPICTRL_ENABLE = 1 generate -- SPI controller
spictrl0 : spictrl
generic map(
pindex => 8,
paddr => 8,
pmask => 16#fff#,
pirq => 8,
fdepth => CFG_SPICTRL_FIFO,
slvselen => CFG_SPICTRL_SLVREG,
slvselsz => CFG_SPICTRL_SLVS,
oepol => oepol,
odmode => CFG_SPICTRL_ODMODE,
automode => CFG_SPICTRL_AM,
aslvsel => CFG_SPICTRL_ASEL,
twen => CFG_SPICTRL_TWEN,
maxwlen => CFG_SPICTRL_MAXWLEN,
syncram => CFG_SPICTRL_SYNCRAM,
memtech => memtech,
ft => CFG_SPICTRL_FT,
scantest => scantest)
port map(
rstn => rstapbn,
clk => clkapb,
apbi => apbi,
apbo => apbo(8),
spii => spii,
spio => spio,
slvsel => spi_slvsel);
spii.sck <= '0';
spii.mosi <= '0';
spii.miso <= spi_miso;
spi_mosi <= spio.mosi;
spi_sck <= spio.sck;
spii.astart <= '0'; --unused
spii.spisel <= '1'; --unused (master only)
end generate spic;
nospi: if CFG_SPICTRL_ENABLE = 0 generate apbo(14) <= apb_none; end generate;
ahbs : if CFG_AHBSTAT = 1 generate -- AHB status register
stati.cerror(0) <= memo.ce;
ahbstat0 : ahbstat
generic map (pindex => 15, paddr => 15, pirq => 1, nftslv => CFG_AHBSTATN)
port map (rstn, clk, ahbmi, ahbsi, stati, apbi, apbo(15));
end generate;
nop2 : if CFG_AHBSTAT = 0 generate apbo(15) <= apb_none; end generate;
-------------------------------------------------------------------------------
-- JTAG Boundary scan
-------------------------------------------------------------------------------
bscangen: if CFG_BOUNDSCAN_EN /= 0 generate
xtapgen: if CFG_AHB_JTAG = 0 generate
t0: tap
generic map (tech => fabtech, irlen => 6, scantest => scantest, oepol => OEPOL)
port map (trst,tck,tms,tdi,tdo,
jtck,jtdi,open,jrst,jcapt,jshft,jupd,open,open,'1',jtdo,'0',jninst,jiupd,jtckn,testen,testrst,testoen,tdoen,'0');
end generate;
bc0: bscanctrl
port map (
trst,jtck,jtckn,jtdi,jninst,jiupd,jrst,jcapt,jshft,jupd,jtdo,
chain_tdi, chain_tdo, bsshft, bscapt, bsupdi, bsupdo, bsdrive, bshighz,
gnd(0), testen, testrst);
chain_tck <= jtck;
chain_tckn <= jtckn;
end generate;
nobscangen: if CFG_BOUNDSCAN_EN = 0 generate
chain_tck <= '0';
chain_tckn <= '0';
chain_tdi <= '0';
bsshft <= '0';
bscapt <= '0';
bsupdi <= '0';
bsupdo <= '0';
bsdrive <= '0';
bshighz <= '0';
end generate;
-----------------------------------------------------------------------
--- SPACEWIRE -------------------------------------------------------
-----------------------------------------------------------------------
spw : if CFG_SPW_EN > 0 generate
swloop : for i in 0 to CFG_SPW_NUM-1 generate
spwi(i).clkdiv10 <=
"000" & gpioo.val(10 downto 8) & "11" when spw_clksel(1 downto 0) = "11" else
"0000" & gpioo.val(10 downto 8) & '1' when spw_clksel(1 downto 0) = "10" else
"00000" & gpioo.val(10 downto 8);
spwi(i).timerrstval <=
'0' & gpioo.val(15 downto 11) & "111111" when clksel(1 downto 0) = "11" else
"00" & gpioo.val(15 downto 11) & "11111" when clksel(1 downto 0) = "10" else
"000" & gpioo.val(15 downto 11) & "1111";
spwi(i).dcrstval <=
"00" & gpioo.val(15 downto 11) & "111" when clksel(1 downto 0) = "11" else
"000" & gpioo.val(15 downto 11) & "10" when clksel(1 downto 0) = "10" else
"0000" & gpioo.val(15 downto 11) & '0';
-- GRSPW PHY #1
spw1_input: if CFG_SPW_GRSPW = 1 generate
x : process
begin
assert false
report "ASIC Leon3 Ref design do not support GRSPW #1"
severity failure;
wait;
end process;
end generate spw1_input;
-- GRSPW PHY #2
spw2_input: if CFG_SPW_GRSPW = 2 generate
------------------------------------------------------------------------------
-- SpW Physical layer
------------------------------------------------------------------------------
--phy_loop : for i in 0 to CFG_SPWRTR_SPWPORTS-1 generate
rstphy0 : rstgen
generic map(
acthigh => 0, -- CFG_RSTGEN_ACTHIGH,
syncrst => CFG_NOASYNC, -- CFG_RSTGEN_SYNCRST,
scanen => scantest,
syncin => 1)
port map (
rstin => rstn,
clk => spw_clk,
clklock => clklock,
rstout => spwrstn(i),
rstoutraw => open,
testrst => testrst,
testen => testen);
-- Only add clockgating to tech lib which supports clock gates
clkgatephygen : if (has_clkand(fabtech) = 1) generate
-- Sync clock to clock domain
spwclkreg : process(spw_clk) is
begin
if rising_edge(spw_clk) then
-- Only disable phy when rx and tx is disabled
-- TODO: Add SW register to enable/disable the router
enphy(i) <= '1';
end if;
end process;
-- Disable spw phy clock when port is not used
spw_phy0_enable : clkand
generic map (
tech => fabtech,
ren => 0)
port map (
i => spw_clk,
en => enphy(i),
o => gspwclk(i),
tsten => testen);
-- Select rx clock (Should be removed by optimization if RX and TX clock is same i.e. normal case for ASIC)
spw_rxclk(i) <= spw_clk when (CFG_SPW_RTSAME = 1) else rxclkphyo(i);
end generate;
noclkgategen : if (has_clkand(fabtech) = 0) generate
enphy(i) <= '1';
gspwclk(i) <= spw_clk;
spw_rxclk(i) <= spw_clk when (CFG_SPW_RTSAME = 1) else rxclkphyo(i);
end generate;
notecclkmux : if (has_clkmux(fabtech) = 0) generate
spwclkn(i) <= spw_clk when (testen = '1' and scantest = 1) else not spw_clk;
end generate;
tecclkmux : if (has_clkmux(fabtech) = 1) generate
-- Use SET protected cells
spwclkni0: clkinv generic map (tech => fabtech) port map (spw_clk, lspwclkn(i));
spwclknm0 : clkmux generic map (tech => fabtech) port map (lspwclkn(i),spw_clk,testen,spwclkn(i));
end generate;
spw_phy0 : grspw2_phy
generic map(
scantest => scantest,
tech => fabtech,
input_type => CFG_SPW_INPUT)
port map(
rstn => spwrstn(i),
rxclki => gspwclk(i),
rxclkin => spwclkn(i),
nrxclki => spwclkn(i),
di => dtmp(i),
si => stmp(i),
do => spwi(i).d(1 downto 0),
dov => spwi(i).dv(1 downto 0),
dconnect => spwi(i).dconnect(1 downto 0),
rxclko => rxclkphyo(i),
testrst => testrst,
testen => testen);
dtmp(i) <= spw_rxd(i); stmp(i) <= spw_rxs(i);
spw_txd(i) <= spwo(i).d(0); spw_txs(i) <= spwo(i).s(0);
spwi(i).nd <= (others => '0'); -- Only used in GRSPW
spwi(i).dv(3 downto 2) <= "00"; -- For second port
--end generate;
end generate spw2_input;
spw1_codec: if CFG_SPW_GRSPW = 1 generate
x : process
begin
assert false
report "ASIC Leon3 Ref design do not support GRSPW #1"
severity failure;
wait;
end process;
end generate spw1_codec;
spw2_codec: if CFG_SPW_GRSPW = 2 generate
rstcodec0 : rstgen
generic map(
acthigh => 0, -- CFG_RSTGEN_ACTHIGH,
syncrst => CFG_NOASYNC, -- CFG_RSTGEN_SYNCRST,
scanen => scantest,
syncin => 1)
port map (
rstin => rstn,
clk => spw_clk,
clklock => clklock,
rstout => crst(i),
rstoutraw => open,
testrst => testrst,
testen => testen);
-- TODO: Fix SW control signals
disclk(i) <= '0';
disrxclk0(i) <= '0';
disrxclk1(i) <= '0';
distxclk(i) <= '0';
distxclkn(i) <= '0';
port0_clkgate : grspw_codec_clockgate
generic map (
tech => fabtech,
scantest => scantest,
ports => CFG_SPW_PORTS,
output_type => CFG_SPW_OUTPUT,
clkgate => 1
)
port map (
rst => crst(i),
clk => spw_clk,
rxclk0 => spw_rxclk(i),
rxclk1 => '0',
txclk => spw_clk,
txclkn => '0',
testen => testen,
testrst => testrst,
disableclk => disclk(i),
disablerxclk0 => disrxclk0(i),
disablerxclk1 => disrxclk1(i),
disabletxclk => distxclk(i),
disabletxclkn => distxclkn(i),
grst => grst(i),
gclk => gclk(i),
grxclk0 => grxclk0(i),
grxclk1 => grxclk1(i),
gtxclk => gtxclk(i),
gtxclkn => gtxclkn(i)
);
grspw0 : grspw2
generic map(
tech => fabtech, -- : integer range 0 to NTECH := inferred;
hindex => maxahbmsp+i, -- : integer range 0 to NAHBMST-1 := 0;
pindex => i+10, -- : integer range 0 to NAPBSLV-1 := 0;
paddr => i+10, -- : integer range 0 to 16#FFF# := 0;
--pmask : integer range 0 to 16#FFF# := 16#FFF#;
pirq => i+10, -- : integer range 0 to NAHBIRQ-1 := 0;
rmap => CFG_SPW_RMAP, -- : integer range 0 to 2 := 0;
rmapcrc => CFG_SPW_RMAPCRC, -- : integer range 0 to 1 := 0;
fifosize1 => CFG_SPW_AHBFIFO, -- : integer range 4 to 32 := 32;
fifosize2 => CFG_SPW_RXFIFO, -- : integer range 16 to 64 := 64;
rxclkbuftype => 0, -- : integer range 0 to 2 := 0;
rxunaligned => CFG_SPW_RXUNAL, -- : integer range 0 to 1 := 0;
rmapbufs => CFG_SPW_RMAPBUF, -- : integer range 2 to 8 := 4;
ft => CFG_SPW_FT, -- : integer range 0 to 2 := 0;
scantest => scantest, -- : integer range 0 to 1 := 0;
ports => CFG_SPW_PORTS, -- : integer range 1 to 2 := 1;
dmachan => CFG_SPW_DMACHAN, -- : integer range 1 to 4 := 1;
memtech => memtech, -- : integer range 0 to NTECH := DEFMEMTECH;
techfifo => has_2pram(memtech), -- : integer range 0 to 1 := 1;
input_type => CFG_SPW_INPUT, -- : integer range 0 to 4 := 0;
output_type => CFG_SPW_OUTPUT, -- : integer range 0 to 2 := 0;
rxtx_sameclk => CFG_SPW_RTSAME, -- : integer range 0 to 1 := 0;
netlist => CFG_SPW_NETLIST -- : integer range 0 to 1 := 0;
)
port map (
rst => grst(i),
clk => gclk(i),
rxclk0 => grxclk0(i),
rxclk1 => grxclk1(i),
txclk => gtxclk(i),
txclkn => gtxclkn(i),
ahbmi => ahbmi,
ahbmo => ahbmo(maxahbmsp+i),
apbi => apbi,
apbo => apbo(i+10),
swni => spwi(i),
swno => spwo(i)
);
end generate spw2_codec;
end generate;
end generate;
nospw : if CFG_SPW_EN = 0 generate
spw_txd <= (others => '0');
spw_txs <= (others => '0');
end generate;
-----------------------------------------------------------------------
--- ETHERNET ---------------------------------------------------------
-----------------------------------------------------------------------
eth0 : if CFG_GRETH = 1 generate -- Gaisler ethernet MAC
e1 : grethm
generic map(hindex => CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG,
pindex => 13, paddr => 13, pirq => 12, memtech => memtech,
mdcscaler => CPU_FREQ/1000, enable_mdio => 1, fifosize => CFG_ETH_FIFO,
nsync => 1, edcl => CFG_DSU_ETH, edclbufsz => CFG_ETH_BUF,
macaddrh => CFG_ETH_ENM, macaddrl => CFG_ETH_ENL, phyrstadr => 7,
ipaddrh => CFG_ETH_IPM, ipaddrl => CFG_ETH_IPL, giga => CFG_GRETH1G,
enable_mdint => 1)
port map(rst => rstn, clk => clk, ahbmi => ahbmi,
ahbmo => ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG),
apbi => apbi, apbo => apbo(13), ethi => ethi, etho => etho);
ethi.gtx_clk <= gtx_clk;
ethi.rx_clk <= erx_clk;
ethi.rxd(7 downto 0) <= erxd;
ethi.rx_dv <= erx_dv;
ethi.tx_clk <= etx_clk;
etxd <= etho.txd(7 downto 0);
etx_en <= etho.tx_en;
etx_er <= etho.tx_er;
ethi.mdint <= emdint;
ethi.mdio_i <= emdioin;
emdioout <= etho.mdio_o;
emdioen <= etho.mdio_oe;
emdc <= etho.mdc;
ethi.rx_er <= erx_er;
ethi.rx_col <= erx_col;
ethi.rx_crs <= erx_crs;
end generate;
-----------------------------------------------------------------------
--- Drive unused bus elements ---------------------------------------
-----------------------------------------------------------------------
noam1 : for i in maxahbm to NAHBMST-1 generate
ahbmo(i) <= ahbm_none;
end generate;
-- noap0 : for i in 12+(CFG_SPW_NUM*CFG_SPW_EN) to NAPBSLV-1-CFG_AHBSTAT
-- generate apbo(i) <= apb_none; end generate;
noah0 : for i in 9 to NAHBSLV-1 generate ahbso(i) <= ahbs_none; end generate;
-----------------------------------------------------------------------
--- Boot message ----------------------------------------------------
-----------------------------------------------------------------------
-- pragma translate_off
x : report_design
generic map (
msg1 => "LEON3 ASIC Demonstration design",
fabtech => tech_table(fabtech), memtech => tech_table(memtech),
mdel => 1
);
-- pragma translate_on
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/designs/leon3-terasic-de4/pll_125.vhd | 3 | 5558 | library ieee;
use ieee.std_logic_1164.all;
library altera_mf;
use altera_mf.all;
entity pll_125 is
port(
inclk0 : in std_logic := '0';
c0 : out std_logic
);
end pll_125;
architecture syn of pll_125 is
COMPONENT altpll
GENERIC (
bandwidth_type : STRING;
clk0_divide_by : NATURAL;
clk0_duty_cycle : NATURAL;
clk0_multiply_by : NATURAL;
clk0_phase_shift : STRING;
clk1_divide_by : NATURAL;
clk1_duty_cycle : NATURAL;
clk1_multiply_by : NATURAL;
clk1_phase_shift : STRING;
clk2_divide_by : NATURAL;
clk2_duty_cycle : NATURAL;
clk2_multiply_by : NATURAL;
clk2_phase_shift : STRING;
clk3_divide_by : NATURAL;
clk3_duty_cycle : NATURAL;
clk3_multiply_by : NATURAL;
clk3_phase_shift : STRING;
clk4_divide_by : NATURAL;
clk4_duty_cycle : NATURAL;
clk4_multiply_by : NATURAL;
clk4_phase_shift : STRING;
clk5_divide_by : NATURAL;
clk5_duty_cycle : NATURAL;
clk5_multiply_by : NATURAL;
clk5_phase_shift : STRING;
compensate_clock : STRING;
inclk0_input_frequency : NATURAL;
intended_device_family : STRING;
lpm_hint : STRING;
lpm_type : STRING;
operation_mode : STRING;
pll_type : STRING;
port_activeclock : STRING;
port_areset : STRING;
port_clkbad0 : STRING;
port_clkbad1 : STRING;
port_clkloss : STRING;
port_clkswitch : STRING;
port_configupdate : STRING;
port_fbin : STRING;
port_fbout : STRING;
port_inclk0 : STRING;
port_inclk1 : STRING;
port_locked : STRING;
port_pfdena : STRING;
port_phasecounterselect : STRING;
port_phasedone : STRING;
port_phasestep : STRING;
port_phaseupdown : STRING;
port_pllena : STRING;
port_scanaclr : STRING;
port_scanclk : STRING;
port_scanclkena : STRING;
port_scandata : STRING;
port_scandataout : STRING;
port_scandone : STRING;
port_scanread : STRING;
port_scanwrite : STRING;
port_clk0 : STRING;
port_clk1 : STRING;
port_clk2 : STRING;
port_clk3 : STRING;
port_clk4 : STRING;
port_clk5 : STRING;
port_clk6 : STRING;
port_clk7 : STRING;
port_clk8 : STRING;
port_clk9 : STRING;
port_clkena0 : STRING;
port_clkena1 : STRING;
port_clkena2 : STRING;
port_clkena3 : STRING;
port_clkena4 : STRING;
port_clkena5 : STRING;
self_reset_on_loss_lock : STRING;
using_fbmimicbidir_port : STRING;
width_clock : NATURAL
);
PORT (
phasestep : IN STD_LOGIC ;
phaseupdown : IN STD_LOGIC ;
inclk : IN STD_LOGIC_VECTOR (1 DOWNTO 0);
phasecounterselect : IN STD_LOGIC_VECTOR (3 DOWNTO 0);
locked : OUT STD_LOGIC ;
phasedone : OUT STD_LOGIC ;
areset : IN STD_LOGIC ;
clk : OUT STD_LOGIC_VECTOR (9 DOWNTO 0);
scanclk : IN STD_LOGIC
);
END COMPONENT;
signal sub_wire3 : std_logic_vector(1 downto 0);
signal sub_wire0 : std_logic_vector(9 downto 0);
begin
sub_wire3 <= '0' & inclk0;
c0 <= sub_wire0(0);
altpll_component : altpll
generic map (
bandwidth_type => "AUTO",
clk0_divide_by => 2,
clk0_duty_cycle => 50,
clk0_multiply_by => 5,
clk0_phase_shift => "0",
clk1_divide_by => 2,
clk1_duty_cycle => 50,
clk1_multiply_by => 5,
clk1_phase_shift => "0",
clk2_divide_by => 2,
clk2_duty_cycle => 50,
clk2_multiply_by => 5,
clk2_phase_shift => "0",
clk3_divide_by => 2,
clk3_duty_cycle => 50,
clk3_multiply_by => 5,
clk3_phase_shift => "0",
clk4_divide_by => 2,
clk4_duty_cycle => 50,
clk4_multiply_by => 5,
clk4_phase_shift => "0",
clk5_divide_by => 2,
clk5_duty_cycle => 50,
clk5_multiply_by => 5,
clk5_phase_shift => "0",
compensate_clock => "CLK0",
inclk0_input_frequency => 20000,
intended_device_family => "Stratix IV",
lpm_hint => "CBX_MODULE_PREFIX=pll_125",
lpm_type => "altpll",
operation_mode => "NORMAL",
pll_type => "AUTO",
port_activeclock => "PORT_UNUSED",
port_areset => "PORT_UNUSED",
port_clkbad0 => "PORT_UNUSED",
port_clkbad1 => "PORT_UNUSED",
port_clkloss => "PORT_UNUSED",
port_clkswitch => "PORT_UNUSED",
port_configupdate => "PORT_UNUSED",
port_fbin => "PORT_UNUSED",
port_fbout => "PORT_UNUSED",
port_inclk0 => "PORT_USED",
port_inclk1 => "PORT_UNUSED",
port_locked => "PORT_UNUSED",
port_pfdena => "PORT_UNUSED",
port_phasecounterselect => "PORT_UNUSED",
port_phasedone => "PORT_UNUSED",
port_phasestep => "PORT_UNUSED",
port_phaseupdown => "PORT_UNUSED",
port_pllena => "PORT_UNUSED",
port_scanaclr => "PORT_UNUSED",
port_scanclk => "PORT_UNUSED",
port_scanclkena => "PORT_UNUSED",
port_scandata => "PORT_UNUSED",
port_scandataout => "PORT_UNUSED",
port_scandone => "PORT_UNUSED",
port_scanread => "PORT_UNUSED",
port_scanwrite => "PORT_UNUSED",
port_clk0 => "PORT_USED",
port_clk1 => "PORT_UNUSED",
port_clk2 => "PORT_UNUSED",
port_clk3 => "PORT_UNUSED",
port_clk4 => "PORT_UNUSED",
port_clk5 => "PORT_UNUSED",
port_clk6 => "PORT_UNUSED",
port_clk7 => "PORT_UNUSED",
port_clk8 => "PORT_UNUSED",
port_clk9 => "PORT_UNUSED",
port_clkena0 => "PORT_UNUSED",
port_clkena1 => "PORT_UNUSED",
port_clkena2 => "PORT_UNUSED",
port_clkena3 => "PORT_UNUSED",
port_clkena4 => "PORT_UNUSED",
port_clkena5 => "PORT_UNUSED",
using_fbmimicbidir_port => "OFF",
self_reset_on_loss_lock => "OFF",
width_clock => 10
)
port map (
inclk => sub_wire3,
clk => sub_wire0,
areset => '0',
phasecounterselect => "1111",
phasestep => '1',
phaseupdown => '1',
scanclk => '0'
);
end architecture syn; | gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/lib/gaisler/sim/ahbrep.vhd | 1 | 4668 | ------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2014, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------
-- Entity: ahbrep
-- File: ahbrep.vhd
-- Author: Jiri Gaisler - Gaisler Reserch
-- Description: Test report module with AHB interface
--
-- See also the work.debug.grtestmod module for a module connected via a
-- PROM/IO interface.
--
-- The base address of the module can be defined for the systest software via
-- the define GRLIB_REPORTDEV_BASE.
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library gaisler;
use gaisler.sim.all;
library grlib;
use grlib.stdlib.all;
use grlib.stdio.all;
use grlib.devices.all;
use grlib.amba.all;
use std.textio.all;
entity ahbrep is
generic (
hindex : integer := 0;
haddr : integer := 0;
hmask : integer := 16#fff#;
halt : integer := 1);
port (
rst : in std_ulogic;
clk : in std_ulogic;
ahbsi : in ahb_slv_in_type;
ahbso : out ahb_slv_out_type
);
end;
architecture rtl of ahbrep is
constant abits : integer := 31;
constant hconfig : ahb_config_type := (
0 => ahb_device_reg ( VENDOR_GAISLER, GAISLER_GRTESTMOD, 0, 0, 0),
4 => ahb_membar(haddr, '0', '0', hmask),
others => zero32);
type reg_type is record
hwrite : std_ulogic;
hsel : std_ulogic;
haddr : std_logic_vector(31 downto 0);
htrans : std_logic_vector(1 downto 0);
end record;
signal r, rin : reg_type;
begin
ahbso.hresp <= "00";
ahbso.hsplit <= (others => '0');
ahbso.hirq <= (others => '0');
ahbso.hrdata <= (others => '0');
ahbso.hconfig <= hconfig;
ahbso.hindex <= hindex;
ahbso.hready <= '1';
log : process(clk, ahbsi )
variable errno, errcnt, subtest, vendorid, deviceid : integer;
variable addr : std_logic_vector(21 downto 2);
variable hwdata : std_logic_vector(31 downto 0);
variable v : reg_type;
begin
if falling_edge(clk) then
if (ahbsi.hready = '1') then
v.haddr := ahbsi.haddr; v.hsel := ahbsi.hsel(hindex);
v.hwrite := ahbsi.hwrite; v.htrans := ahbsi.htrans;
end if;
if (r.hsel and r.htrans(1) and r.hwrite and rst) = '1' then
hwdata := ahbreadword(ahbsi.hwdata, r.haddr(4 downto 2));
case r.haddr(7 downto 2) is
when "000000" =>
vendorid := conv_integer(hwdata(31 downto 24));
deviceid := conv_integer(hwdata(23 downto 12));
print(iptable(vendorid).device_table(deviceid));
when "000001" =>
errno := conv_integer(hwdata(15 downto 0));
if (halt = 1) then
assert false
report "test failed, error (" & tost(errno) & ")"
severity failure;
else
assert false
report "test failed, error (" & tost(errno) & ")"
severity warning;
end if;
when "000010" =>
subtest := conv_integer(hwdata(7 downto 0));
call_subtest(vendorid, deviceid, subtest);
when "000100" =>
print ("");
print ("**** GRLIB system test starting ****");
errcnt := 0;
when "000101" =>
if errcnt = 0 then
print ("Test passed, halting with IU error mode");
elsif errcnt = 1 then
print ("1 error detected, halting with IU error mode");
else
print (tost(errcnt) & " errors detected, halting with IU error mode");
end if;
print ("");
when "000110" =>
grlib.testlib.print("Checkpoint " & tost(conv_integer(hwdata(15 downto 0))));
when others =>
end case;
end if;
end if;
rin <= v;
end process;
reg : process (clk)
begin
if rising_edge(clk) then r <= rin; end if;
end process;
-- pragma translate_off
bootmsg : report_version
generic map ("testmod" & tost(hindex) & ": Test report module");
-- pragma translate_on
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/designs/leon3-altera-ep3c25-eek/ahbrom.vhd | 3 | 8961 |
----------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2009 Aeroflex Gaisler
----------------------------------------------------------------------------
-- Entity: ahbrom
-- File: ahbrom.vhd
-- Author: Jiri Gaisler - Gaisler Research
-- Description: AHB rom. 0/1-waitstate read
----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.all;
use grlib.stdlib.all;
use grlib.devices.all;
entity ahbrom is
generic (
hindex : integer := 0;
haddr : integer := 0;
hmask : integer := 16#fff#;
pipe : integer := 0;
tech : integer := 0;
kbytes : integer := 1);
port (
rst : in std_ulogic;
clk : in std_ulogic;
ahbsi : in ahb_slv_in_type;
ahbso : out ahb_slv_out_type
);
end;
architecture rtl of ahbrom is
constant abits : integer := 10;
constant bytes : integer := 560;
constant hconfig : ahb_config_type := (
0 => ahb_device_reg ( VENDOR_GAISLER, GAISLER_AHBROM, 0, 0, 0),
4 => ahb_membar(haddr, '1', '1', hmask), others => zero32);
signal romdata : std_logic_vector(31 downto 0);
signal addr : std_logic_vector(abits-1 downto 2);
signal hsel, hready : std_ulogic;
begin
ahbso.hresp <= "00";
ahbso.hsplit <= (others => '0');
ahbso.hirq <= (others => '0');
ahbso.hconfig <= hconfig;
ahbso.hindex <= hindex;
reg : process (clk)
begin
if rising_edge(clk) then
addr <= ahbsi.haddr(abits-1 downto 2);
end if;
end process;
p0 : if pipe = 0 generate
ahbso.hrdata <= ahbdrivedata(romdata);
ahbso.hready <= '1';
end generate;
p1 : if pipe = 1 generate
reg2 : process (clk)
begin
if rising_edge(clk) then
hsel <= ahbsi.hsel(hindex) and ahbsi.htrans(1);
hready <= ahbsi.hready;
ahbso.hready <= (not rst) or (hsel and hready) or
(ahbsi.hsel(hindex) and not ahbsi.htrans(1) and ahbsi.hready);
ahbso.hrdata <= ahbdrivedata(romdata);
end if;
end process;
end generate;
comb : process (addr)
begin
case conv_integer(addr) is
when 16#00000# => romdata <= X"81D82000";
when 16#00001# => romdata <= X"03000004";
when 16#00002# => romdata <= X"821060E0";
when 16#00003# => romdata <= X"81884000";
when 16#00004# => romdata <= X"81900000";
when 16#00005# => romdata <= X"81980000";
when 16#00006# => romdata <= X"81800000";
when 16#00007# => romdata <= X"A1800000";
when 16#00008# => romdata <= X"01000000";
when 16#00009# => romdata <= X"03002040";
when 16#0000A# => romdata <= X"8210600F";
when 16#0000B# => romdata <= X"C2A00040";
when 16#0000C# => romdata <= X"84100000";
when 16#0000D# => romdata <= X"01000000";
when 16#0000E# => romdata <= X"01000000";
when 16#0000F# => romdata <= X"01000000";
when 16#00010# => romdata <= X"01000000";
when 16#00011# => romdata <= X"01000000";
when 16#00012# => romdata <= X"80108002";
when 16#00013# => romdata <= X"01000000";
when 16#00014# => romdata <= X"01000000";
when 16#00015# => romdata <= X"01000000";
when 16#00016# => romdata <= X"01000000";
when 16#00017# => romdata <= X"01000000";
when 16#00018# => romdata <= X"87444000";
when 16#00019# => romdata <= X"8608E01F";
when 16#0001A# => romdata <= X"88100000";
when 16#0001B# => romdata <= X"8A100000";
when 16#0001C# => romdata <= X"8C100000";
when 16#0001D# => romdata <= X"8E100000";
when 16#0001E# => romdata <= X"A0100000";
when 16#0001F# => romdata <= X"A2100000";
when 16#00020# => romdata <= X"A4100000";
when 16#00021# => romdata <= X"A6100000";
when 16#00022# => romdata <= X"A8100000";
when 16#00023# => romdata <= X"AA100000";
when 16#00024# => romdata <= X"AC100000";
when 16#00025# => romdata <= X"AE100000";
when 16#00026# => romdata <= X"90100000";
when 16#00027# => romdata <= X"92100000";
when 16#00028# => romdata <= X"94100000";
when 16#00029# => romdata <= X"96100000";
when 16#0002A# => romdata <= X"98100000";
when 16#0002B# => romdata <= X"9A100000";
when 16#0002C# => romdata <= X"9C100000";
when 16#0002D# => romdata <= X"9E100000";
when 16#0002E# => romdata <= X"86A0E001";
when 16#0002F# => romdata <= X"16BFFFEF";
when 16#00030# => romdata <= X"81E00000";
when 16#00031# => romdata <= X"82102002";
when 16#00032# => romdata <= X"81904000";
when 16#00033# => romdata <= X"03000004";
when 16#00034# => romdata <= X"821060E0";
when 16#00035# => romdata <= X"81884000";
when 16#00036# => romdata <= X"01000000";
when 16#00037# => romdata <= X"01000000";
when 16#00038# => romdata <= X"01000000";
when 16#00039# => romdata <= X"83480000";
when 16#0003A# => romdata <= X"8330600C";
when 16#0003B# => romdata <= X"80886001";
when 16#0003C# => romdata <= X"02800024";
when 16#0003D# => romdata <= X"01000000";
when 16#0003E# => romdata <= X"07000000";
when 16#0003F# => romdata <= X"8610E178";
when 16#00040# => romdata <= X"C108C000";
when 16#00041# => romdata <= X"C118C000";
when 16#00042# => romdata <= X"C518C000";
when 16#00043# => romdata <= X"C918C000";
when 16#00044# => romdata <= X"CD18C000";
when 16#00045# => romdata <= X"D118C000";
when 16#00046# => romdata <= X"D518C000";
when 16#00047# => romdata <= X"D918C000";
when 16#00048# => romdata <= X"DD18C000";
when 16#00049# => romdata <= X"E118C000";
when 16#0004A# => romdata <= X"E518C000";
when 16#0004B# => romdata <= X"E918C000";
when 16#0004C# => romdata <= X"ED18C000";
when 16#0004D# => romdata <= X"F118C000";
when 16#0004E# => romdata <= X"F518C000";
when 16#0004F# => romdata <= X"F918C000";
when 16#00050# => romdata <= X"FD18C000";
when 16#00051# => romdata <= X"01000000";
when 16#00052# => romdata <= X"01000000";
when 16#00053# => romdata <= X"01000000";
when 16#00054# => romdata <= X"01000000";
when 16#00055# => romdata <= X"01000000";
when 16#00056# => romdata <= X"89A00842";
when 16#00057# => romdata <= X"01000000";
when 16#00058# => romdata <= X"01000000";
when 16#00059# => romdata <= X"01000000";
when 16#0005A# => romdata <= X"01000000";
when 16#0005B# => romdata <= X"10800005";
when 16#0005C# => romdata <= X"01000000";
when 16#0005D# => romdata <= X"01000000";
when 16#0005E# => romdata <= X"00000000";
when 16#0005F# => romdata <= X"00000000";
when 16#00060# => romdata <= X"87444000";
when 16#00061# => romdata <= X"8730E01C";
when 16#00062# => romdata <= X"8688E00F";
when 16#00063# => romdata <= X"12800016";
when 16#00064# => romdata <= X"03200000";
when 16#00065# => romdata <= X"05040E00";
when 16#00066# => romdata <= X"8410A133";
when 16#00067# => romdata <= X"C4204000";
when 16#00068# => romdata <= X"0539A803";
when 16#00069# => romdata <= X"8410A261";
when 16#0006A# => romdata <= X"C4206004";
when 16#0006B# => romdata <= X"050003FC";
when 16#0006C# => romdata <= X"C4206008";
when 16#0006D# => romdata <= X"82103860";
when 16#0006E# => romdata <= X"C4004000";
when 16#0006F# => romdata <= X"8530A00C";
when 16#00070# => romdata <= X"03000004";
when 16#00071# => romdata <= X"82106009";
when 16#00072# => romdata <= X"80A04002";
when 16#00073# => romdata <= X"12800006";
when 16#00074# => romdata <= X"033FFC00";
when 16#00075# => romdata <= X"82106100";
when 16#00076# => romdata <= X"0539A81B";
when 16#00077# => romdata <= X"8410A260";
when 16#00078# => romdata <= X"C4204000";
when 16#00079# => romdata <= X"05000008";
when 16#0007A# => romdata <= X"82100000";
when 16#0007B# => romdata <= X"80A0E000";
when 16#0007C# => romdata <= X"02800005";
when 16#0007D# => romdata <= X"01000000";
when 16#0007E# => romdata <= X"82004002";
when 16#0007F# => romdata <= X"10BFFFFC";
when 16#00080# => romdata <= X"8620E001";
when 16#00081# => romdata <= X"3D1003FF";
when 16#00082# => romdata <= X"BC17A3E0";
when 16#00083# => romdata <= X"BC278001";
when 16#00084# => romdata <= X"9C27A060";
when 16#00085# => romdata <= X"03100000";
when 16#00086# => romdata <= X"81C04000";
when 16#00087# => romdata <= X"01000000";
when 16#00088# => romdata <= X"00000000";
when 16#00089# => romdata <= X"00000000";
when 16#0008A# => romdata <= X"00000000";
when 16#0008B# => romdata <= X"00000000";
when 16#0008C# => romdata <= X"00000000";
when others => romdata <= (others => '-');
end case;
end process;
-- pragma translate_off
bootmsg : report_version
generic map ("ahbrom" & tost(hindex) &
": 32-bit AHB ROM Module, " & tost(bytes/4) & " words, " & tost(abits-2) & " address bits" );
-- pragma translate_on
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/designs/leon3-altera-ep2s60-sdr/leon3mp.vhd | 1 | 20639 | ------------------------------------------------------------------------------
-- LEON3 Demonstration design
-- Copyright (C) 2004 Jiri Gaisler, Gaisler Research
------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2014, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.all;
use grlib.stdlib.all;
library techmap;
use techmap.gencomp.all;
library gaisler;
use gaisler.memctrl.all;
use gaisler.leon3.all;
use gaisler.uart.all;
use gaisler.misc.all;
use gaisler.jtag.all;
library esa;
use esa.memoryctrl.all;
use work.config.all;
entity leon3mp is
generic (
fabtech : integer := CFG_FABTECH;
memtech : integer := CFG_MEMTECH;
padtech : integer := CFG_PADTECH;
clktech : integer := CFG_CLKTECH;
ncpu : integer := CFG_NCPU;
disas : integer := CFG_DISAS; -- Enable disassembly to console
dbguart : integer := CFG_DUART; -- Print UART on console
pclow : integer := CFG_PCLOW;
freq : integer := 50000 -- frequency of main clock (used for PLLs)
);
port (
resetn : in std_ulogic;
clk : in std_ulogic;
errorn : out std_ulogic;
-- Shared bus
address : out std_logic_vector(23 downto 0);
data : inout std_logic_vector(31 downto 0);
-- SRAM
ramsn : out std_ulogic;
ramoen : out std_ulogic;
rwen : out std_ulogic;
mben : out std_logic_vector(3 downto 0);
-- pragma translate_off
iosn : out std_ulogic;
-- pragma translate_on
-- FLASH
romsn : out std_ulogic;
oen : out std_ulogic;
writen : out std_ulogic;
byten : out std_ulogic;
wpn : out std_ulogic;
sa : out std_logic_vector(11 downto 0);
sd : inout std_logic_vector(31 downto 0);
sdclk : out std_ulogic;
sdcke : out std_logic; -- sdram clock enable
sdcsn : out std_logic; -- sdram chip select
sdwen : out std_ulogic; -- sdram write enable
sdrasn : out std_ulogic; -- sdram ras
sdcasn : out std_ulogic; -- sdram cas
sddqm : out std_logic_vector (3 downto 0); -- sdram dqm
sdba : out std_logic_vector(1 downto 0); -- sdram bank address
-- debug support unit
dsutx : out std_ulogic; -- DSU tx data
dsurx : in std_ulogic; -- DSU rx data
dsubren : in std_ulogic;
dsuact : out std_ulogic;
-- console UART
rxd1 : in std_ulogic;
txd1 : out std_ulogic;
-- for smsc lan chip
eth_aen : out std_logic;
eth_readn : out std_logic;
eth_writen: out std_logic;
eth_nbe : out std_logic_vector(3 downto 0);
eth_lclk : out std_ulogic;
eth_nads : out std_logic;
eth_ncycle : out std_logic;
eth_wnr : out std_logic;
eth_nvlbus : out std_logic;
eth_nrdyrtn : out std_logic;
eth_ndatacs : out std_logic;
gpio : inout std_logic_vector(CFG_GRGPIO_WIDTH-1 downto 0) -- I/O port
);
end;
architecture rtl of leon3mp is
constant blength : integer := 12;
constant fifodepth : integer := 8;
constant maxahbm : integer := NCPU+CFG_AHB_UART+CFG_AHB_JTAG;
signal vcc, gnd : std_logic_vector(7 downto 0);
signal memi : memory_in_type;
signal memo : memory_out_type;
signal wpo : wprot_out_type;
signal sdi : sdctrl_in_type;
signal sdo : sdram_out_type;
signal sdo2 : sdctrl_out_type;
--for smc lan chip
signal s_eth_aen : std_logic;
signal s_eth_readn : std_logic;
signal s_eth_writen: std_logic;
signal s_eth_nbe : std_logic_vector(3 downto 0);
signal apbi : apb_slv_in_type;
signal apbo : apb_slv_out_vector := (others => apb_none);
signal ahbsi : ahb_slv_in_type;
signal ahbso : ahb_slv_out_vector := (others => ahbs_none);
signal ahbmi : ahb_mst_in_type;
signal ahbmo : ahb_mst_out_vector := (others => ahbm_none);
signal clkm, rstn, sdclkl : std_ulogic;
signal cgi : clkgen_in_type;
signal cgo : clkgen_out_type;
signal u1i, dui : uart_in_type;
signal u1o, duo : uart_out_type;
signal irqi : irq_in_vector(0 to NCPU-1);
signal irqo : irq_out_vector(0 to NCPU-1);
signal dbgi : l3_debug_in_vector(0 to NCPU-1);
signal dbgo : l3_debug_out_vector(0 to NCPU-1);
signal dsui : dsu_in_type;
signal dsuo : dsu_out_type;
signal gpti : gptimer_in_type;
signal gpioi : gpio_in_type;
signal gpioo : gpio_out_type;
constant IOAEN : integer := 1;
constant CFG_SDEN : integer := CFG_MCTRL_SDEN ;
constant CFG_INVCLK : integer := CFG_MCTRL_INVCLK;
signal dsubre : std_ulogic;
component smc_mctrl
generic (
hindex : integer := 0;
pindex : integer := 0;
romaddr : integer := 16#000#;
rommask : integer := 16#E00#;
ioaddr : integer := 16#200#;
iomask : integer := 16#E00#;
ramaddr : integer := 16#400#;
rammask : integer := 16#C00#;
paddr : integer := 0;
pmask : integer := 16#fff#;
wprot : integer := 0;
invclk : integer := 0;
fast : integer := 0;
romasel : integer := 28;
sdrasel : integer := 29;
srbanks : integer := 4;
ram8 : integer := 0;
ram16 : integer := 0;
sden : integer := 0;
sepbus : integer := 0;
sdbits : integer := 32;
sdlsb : integer := 2;
oepol : integer := 0;
syncrst : integer := 0
);
port (
rst : in std_ulogic;
clk : in std_ulogic;
memi : in memory_in_type;
memo : out memory_out_type;
ahbsi : in ahb_slv_in_type;
ahbso : out ahb_slv_out_type;
apbi : in apb_slv_in_type;
apbo : out apb_slv_out_type;
wpo : in wprot_out_type;
sdo : out sdram_out_type;
eth_aen : out std_ulogic; -- for smsc lan chip
eth_readn : out std_ulogic; -- for smsc lan chip
eth_writen: out std_ulogic; -- for smsc lan chip
eth_nbe : out std_logic_vector(3 downto 0) -- for smsc lan chip
);
end component;
begin
----------------------------------------------------------------------
--- Reset and Clock generation -------------------------------------
----------------------------------------------------------------------
vcc <= (others => '1'); gnd <= (others => '0');
cgi.pllctrl <= "00"; cgi.pllrst <= not resetn; cgi.pllref <= '0';
clkgen0 : clkgen -- clock generator using toplevel generic 'freq'
generic map (tech => CFG_CLKTECH, clk_mul => CFG_CLKMUL,
clk_div => CFG_CLKDIV, sdramen => CFG_MCTRL_SDEN,
noclkfb => CFG_CLK_NOFB, freq => freq)
port map (clkin => clk, pciclkin => gnd(0), clk => clkm, clkn => open,
clk2x => open, sdclk => sdclkl, pciclk => open,
cgi => cgi, cgo => cgo);
sdclk_pad : outpad generic map (tech => padtech, slew => 1, strength => 24) port map (sdclk, sdclkl);
rst0 : rstgen -- reset generator
port map (resetn, clkm, cgo.clklock, rstn);
----------------------------------------------------------------------
--- AHB CONTROLLER --------------------------------------------------
----------------------------------------------------------------------
ahb0 : ahbctrl -- AHB arbiter/multiplexer
generic map (defmast => CFG_DEFMST, split => CFG_SPLIT,
rrobin => CFG_RROBIN, ioaddr => CFG_AHBIO,
ioen => IOAEN, nahbm => maxahbm, nahbs => 8)
port map (rstn, clkm, ahbmi, ahbmo, ahbsi, ahbso);
----------------------------------------------------------------------
--- LEON3 processor and DSU -----------------------------------------
----------------------------------------------------------------------
l3 : if CFG_LEON3 = 1 generate
cpu : for i in 0 to NCPU-1 generate
u0 : leon3s -- LEON3 processor
generic map (i, fabtech, memtech, CFG_NWIN, CFG_DSU, CFG_FPU, CFG_V8,
0, CFG_MAC, pclow, CFG_NOTAG, CFG_NWP, CFG_ICEN, CFG_IREPL, CFG_ISETS, CFG_ILINE,
CFG_ISETSZ, CFG_ILOCK, CFG_DCEN, CFG_DREPL, CFG_DSETS, CFG_DLINE, CFG_DSETSZ,
CFG_DLOCK, CFG_DSNOOP, CFG_ILRAMEN, CFG_ILRAMSZ, CFG_ILRAMADDR, CFG_DLRAMEN,
CFG_DLRAMSZ, CFG_DLRAMADDR, CFG_MMUEN, CFG_ITLBNUM, CFG_DTLBNUM, CFG_TLB_TYPE, CFG_TLB_REP,
CFG_LDDEL, disas, CFG_ITBSZ, CFG_PWD, CFG_SVT, CFG_RSTADDR, NCPU-1)
port map (clkm, rstn, ahbmi, ahbmo(i), ahbsi, ahbso,
irqi(i), irqo(i), dbgi(i), dbgo(i));
end generate;
errorn_pad : odpad generic map (tech => padtech) port map (errorn, dbgo(0).error);
dsugen : if CFG_DSU = 1 generate
dsu0 : dsu3 -- LEON3 Debug Support Unit
generic map (hindex => 2, haddr => 16#900#, hmask => 16#F00#,
ncpu => NCPU, tbits => 30, tech => memtech, irq => 0, kbytes => CFG_ATBSZ)
port map (rstn, clkm, ahbmi, ahbsi, ahbso(2), dbgo, dbgi, dsui, dsuo);
dsui.enable <= '1';
dsubre_pad : inpad generic map (tech => padtech) port map (dsubre, dsui.break);
dsuact_pad : outpad generic map (tech => padtech) port map (dsuact, dsuo.active);
end generate;
end generate;
nodsu : if CFG_DSU = 0 generate
ahbso(2) <= ahbs_none; dsuo.tstop <= '0'; dsuo.active <= '0';
end generate;
dcomgen : if CFG_AHB_UART = 1 generate
dcom0 : ahbuart -- Debug UART
generic map (hindex => NCPU, pindex => 4, paddr => 7)
port map (rstn, clkm, dui, duo, apbi, apbo(4), ahbmi, ahbmo(NCPU));
dsurx_pad : inpad generic map (tech => padtech) port map (dsurx, dui.rxd);
dsutx_pad : outpad generic map (tech => padtech) port map (dsutx, duo.txd);
end generate;
nouah : if CFG_AHB_UART = 0 generate apbo(4) <= apb_none; end generate;
ahbjtaggen0 : if CFG_AHB_JTAG = 1 generate
ahbjtag0 : ahbjtag generic map(tech => fabtech, hindex => CFG_NCPU+CFG_AHB_UART)
port map(rstn, clkm, gnd(0), gnd(0), gnd(0), open, ahbmi, ahbmo(CFG_NCPU+CFG_AHB_UART),
open, open, open, open, open, open, open, gnd(0));
end generate;
----------------------------------------------------------------------
--- Memory controllers ----------------------------------------------
----------------------------------------------------------------------
src : if CFG_SRCTRL = 1 generate -- 32-bit PROM/SRAM controller
sr0 : srctrl generic map (hindex => 0, ramws => CFG_SRCTRL_RAMWS,
romws => CFG_SRCTRL_PROMWS, ramaddr => 16#400#,
prom8en => CFG_SRCTRL_8BIT, rmw => CFG_SRCTRL_RMW)
port map (rstn, clkm, ahbsi, ahbso(0), memi, memo, sdo2);
apbo(0) <= apb_none;
end generate;
mg2 : if CFG_MCTRL_LEON2 = 1 generate -- LEON2 memory controller
sr1 : smc_mctrl generic map (hindex => 0, pindex => 0, paddr => 0,
srbanks => 2, sden => CFG_MCTRL_SDEN, ram8 => CFG_MCTRL_RAM8BIT,
ram16 => CFG_MCTRL_RAM16BIT, invclk => CFG_MCTRL_INVCLK,
sepbus => CFG_MCTRL_SEPBUS, sdbits => 32 + 32*CFG_MCTRL_SD64)
port map (rstn, clkm, memi, memo, ahbsi, ahbso(0), apbi, apbo(0), wpo, sdo,
s_eth_aen, s_eth_readn, s_eth_writen, s_eth_nbe);
sdpads : if CFG_MCTRL_SDEN = 1 generate -- SDRAM controller
sd2 : if CFG_MCTRL_SEPBUS = 1 generate
sa_pad : outpadv generic map (width => 12) port map (sa, memo.sa(11 downto 0));
sdba_pad : outpadv generic map (width => 2) port map (sdba, memo.sa(14 downto 13));
bdr : for i in 0 to 3 generate
sd_pad : iopadv generic map (tech => padtech, width => 8)
port map (sd(31-i*8 downto 24-i*8), memo.data(31-i*8 downto 24-i*8),
memo.bdrive(i), memi.sd(31-i*8 downto 24-i*8));
sd2 : if CFG_MCTRL_SD64 = 1 generate
sd_pad2 : iopadv generic map (tech => padtech, width => 8)
port map (sd(31-i*8+32 downto 24-i*8+32), memo.data(31-i*8 downto 24-i*8),
memo.bdrive(i), memi.sd(31-i*8+32 downto 24-i*8+32));
end generate;
end generate;
end generate;
sdwen_pad : outpad generic map (tech => padtech)
port map (sdwen, sdo.sdwen);
sdras_pad : outpad generic map (tech => padtech)
port map (sdrasn, sdo.rasn);
sdcas_pad : outpad generic map (tech => padtech)
port map (sdcasn, sdo.casn);
sddqm_pad : outpadv generic map (width =>4, tech => padtech)
port map (sddqm, sdo.dqm(3 downto 0));
end generate;
sdcke_pad : outpad generic map (tech => padtech) port map (sdcke, sdo.sdcke(0));
sdcsn_pad : outpad generic map (tech => padtech) port map (sdcsn, sdo.sdcsn(0));
end generate;
wpn <= '1'; byten <= '0';
nosd0 : if (CFG_MCTRL_LEON2 = 0) generate -- no SDRAM controller
sdcke_pad : outpad generic map (tech => padtech) port map (sdcke, vcc(0));
sdcsn_pad : outpad generic map (tech => padtech) port map (sdcsn, vcc(0));
end generate;
memi.brdyn <= '1'; memi.bexcn <= '1';
memi.writen <= '1'; memi.wrn <= "1111"; memi.bwidth <= "00";
mg0 : if not ((CFG_SRCTRL = 1) or (CFG_MCTRL_LEON2 = 1)) generate -- no prom/sram pads
apbo(0) <= apb_none; ahbso(0) <= ahbs_none;
rams_pad : outpad generic map (tech => padtech)
port map (ramsn, vcc(0));
roms_pad : outpad generic map (tech => padtech)
port map (romsn, vcc(0));
end generate;
mgpads : if (CFG_SRCTRL = 1) or (CFG_MCTRL_LEON2 = 1) generate -- prom/sram pads
addr_pad : outpadv generic map (width => 24, tech => padtech)
port map (address, memo.address(23 downto 0));
memb_pad : outpadv generic map (width => 4, tech => padtech)
port map (mben, memo.mben);
rams_pad : outpad generic map (tech => padtech)
port map (ramsn, memo.ramsn(0));
roms_pad : outpad generic map (tech => padtech)
port map (romsn, memo.romsn(0));
oen_pad : outpad generic map (tech => padtech)
port map (oen, memo.oen);
rwen_pad : outpad generic map (tech => padtech)
port map (rwen, memo.wrn(0));
roen_pad : outpad generic map (tech => padtech)
port map (ramoen, memo.ramoen(0));
wri_pad : outpad generic map (tech => padtech)
port map (writen, memo.writen);
-- pragma translate_off
iosn_pad : outpad generic map (tech => padtech)
port map (iosn, memo.iosn);
-- pragma translate_on
-- for smc lan chip
eth_aen_pad : outpad generic map (tech => padtech)
port map (eth_aen, s_eth_aen);
eth_readn_pad : outpad generic map (tech => padtech)
port map (eth_readn, s_eth_readn);
eth_writen_pad : outpad generic map (tech => padtech)
port map (eth_writen, s_eth_writen);
eth_nbe_pad : outpadv generic map (width => 4, tech => padtech)
port map (eth_nbe, s_eth_nbe);
bdr : for i in 0 to 3 generate
data_pad : iopadv generic map (tech => padtech, width => 8)
port map (data(31-i*8 downto 24-i*8), memo.data(31-i*8 downto 24-i*8),
memo.bdrive(i), memi.data(31-i*8 downto 24-i*8));
end generate;
end generate;
----------------------------------------------------------------------
--- APB Bridge and various periherals -------------------------------
----------------------------------------------------------------------
apb0 : apbctrl -- AHB/APB bridge
generic map (hindex => 1, haddr => CFG_APBADDR)
port map (rstn, clkm, ahbsi, ahbso(1), apbi, apbo);
ua1 : if CFG_UART1_ENABLE /= 0 generate
uart1 : apbuart -- UART 1
generic map (pindex => 1, paddr => 1, pirq => 2, console => dbguart,
fifosize => CFG_UART1_FIFO)
port map (rstn, clkm, apbi, apbo(1), u1i, u1o);
u1i.rxd <= rxd1; u1i.ctsn <= '0'; u1i.extclk <= '0'; txd1 <= u1o.txd;
end generate;
noua0 : if CFG_UART1_ENABLE = 0 generate apbo(1) <= apb_none; end generate;
irqctrl : if CFG_IRQ3_ENABLE /= 0 generate
irqctrl0 : irqmp -- interrupt controller
generic map (pindex => 2, paddr => 2, ncpu => NCPU)
port map (rstn, clkm, apbi, apbo(2), irqo, irqi);
end generate;
irq3 : if CFG_IRQ3_ENABLE = 0 generate
x : for i in 0 to NCPU-1 generate
irqi(i).irl <= "0000";
end generate;
apbo(2) <= apb_none;
end generate;
gpt : if CFG_GPT_ENABLE /= 0 generate
timer0 : gptimer -- timer unit
generic map (pindex => 3, paddr => 3, pirq => CFG_GPT_IRQ,
sepirq => CFG_GPT_SEPIRQ, sbits => CFG_GPT_SW, ntimers => CFG_GPT_NTIM,
nbits => CFG_GPT_TW)
port map (rstn, clkm, apbi, apbo(3), gpti, open);
gpti.dhalt <= dsuo.tstop; gpti.extclk <= '0';
end generate;
notim : if CFG_GPT_ENABLE = 0 generate apbo(3) <= apb_none; end generate;
gpio0 : if CFG_GRGPIO_ENABLE /= 0 generate -- GPIO unit
grgpio0: grgpio
generic map(pindex => 5, paddr => 5, imask => CFG_GRGPIO_IMASK, nbits => CFG_GRGPIO_WIDTH)
port map(rst => rstn, clk => clkm, apbi => apbi, apbo => apbo(5),
gpioi => gpioi, gpioo => gpioo);
pio_pads : for i in 0 to CFG_GRGPIO_WIDTH-1 generate
pio_pad : iopad generic map (tech => padtech)
port map (gpio(i), gpioo.dout(i), gpioo.oen(i), gpioi.din(i));
end generate;
end generate;
-----------------------------------------------------------------------
--- AHB ROM ----------------------------------------------------------
-----------------------------------------------------------------------
bpromgen : if CFG_AHBROMEN /= 0 generate
brom : entity work.ahbrom
generic map (hindex => 6, haddr => CFG_AHBRODDR, pipe => CFG_AHBROPIP)
port map ( rstn, clkm, ahbsi, ahbso(6));
end generate;
nobpromgen : if CFG_AHBROMEN = 0 generate
ahbso(6) <= ahbs_none;
end generate;
-----------------------------------------------------------------------
--- AHB RAM ----------------------------------------------------------
-----------------------------------------------------------------------
ahbramgen : if CFG_AHBRAMEN = 1 generate
ahbram0 : ahbram generic map (hindex => 3, haddr => CFG_AHBRADDR,
tech => CFG_MEMTECH, kbytes => CFG_AHBRSZ, pipe => CFG_AHBRPIPE)
port map (rstn, clkm, ahbsi, ahbso(3));
end generate;
nram : if CFG_AHBRAMEN = 0 generate ahbso(3) <= ahbs_none; end generate;
-----------------------------------------------------------------------
--- Drive unused bus elements ---------------------------------------
-----------------------------------------------------------------------
nam1 : for i in (NCPU+CFG_AHB_UART+CFG_AHB_JTAG) to NAHBMST-1 generate
ahbmo(i) <= ahbm_none;
end generate;
nap0 : for i in 6 to NAPBSLV-1 generate apbo(i) <= apb_none; end generate;
nah0 : for i in 7 to NAHBSLV-1 generate ahbso(i) <= ahbs_none; end generate;
-- invert signal for input via a key
dsubre <= not dsubren;
-- for smc lan chip
eth_lclk <= vcc(0);
eth_nads <= gnd(0);
eth_ncycle <= vcc(0);
eth_wnr <= vcc(0);
eth_nvlbus <= vcc(0);
eth_nrdyrtn <= vcc(0);
eth_ndatacs <= vcc(0);
-----------------------------------------------------------------------
--- Boot message ----------------------------------------------------
-----------------------------------------------------------------------
-- pragma translate_off
x : report_design
generic map (
msg1 => "LEON3 Altera EP2C60 SDR Demonstration design",
fabtech => tech_table(fabtech), memtech => tech_table(memtech),
mdel => 1
);
-- pragma translate_on
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/lib/techmap/altera_mf/tap_altera_mf.vhd | 1 | 4934 | ------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2014, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------
-- Entity: tap_altera
-- File: tap_altera_gen.vhd
-- Author: Edvin Catovic - Gaisler Research
-- Description: Altera TAP controllers wrappers
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
-- pragma translate_off
library altera_mf;
use altera_mf.altera_mf_components.all;
use altera_mf.sld_virtual_jtag;
-- pragma translate_on
entity altera_tap is
port (
tapi_tdo1 : in std_ulogic;
tapi_tdo2 : in std_ulogic;
tapo_tck : out std_ulogic;
tapo_tdi : out std_ulogic;
tapo_inst : out std_logic_vector(7 downto 0);
tapo_rst : out std_ulogic;
tapo_capt : out std_ulogic;
tapo_shft : out std_ulogic;
tapo_upd : out std_ulogic;
tapo_xsel1 : out std_ulogic;
tapo_xsel2 : out std_ulogic
);
end;
architecture rtl of altera_tap is
signal ir0 : std_logic_vector(7 downto 0);
component sld_virtual_jtag
generic (
--lpm_hint : string := "UNUSED";
--lpm_type : string := "sld_virtual_jtag";
sld_auto_instance_index : string := "NO";
sld_instance_index : natural := 0;
sld_ir_width : natural := 1;
sld_sim_action : string := "UNUSED"
--sld_sim_n_scan : natural := 0;
--sld_sim_total_length : natural := 0
);
port(
ir_in : out std_logic_vector(sld_ir_width-1 downto 0);
ir_out : in std_logic_vector(sld_ir_width-1 downto 0);
jtag_state_cdr : out std_logic;
jtag_state_cir : out std_logic;
jtag_state_e1dr : out std_logic;
jtag_state_e1ir : out std_logic;
jtag_state_e2dr : out std_logic;
jtag_state_e2ir : out std_logic;
jtag_state_pdr : out std_logic;
jtag_state_pir : out std_logic;
jtag_state_rti : out std_logic;
jtag_state_sdr : out std_logic;
jtag_state_sdrs : out std_logic;
jtag_state_sir : out std_logic;
jtag_state_sirs : out std_logic;
jtag_state_tlr : out std_logic;
jtag_state_udr : out std_logic;
jtag_state_uir : out std_logic;
tck : out std_logic;
tdi : out std_logic;
tdo : in std_logic;
tms : out std_logic;
virtual_state_cdr : out std_logic;
virtual_state_cir : out std_logic;
virtual_state_e1dr : out std_logic;
virtual_state_e2dr : out std_logic;
virtual_state_pdr : out std_logic;
virtual_state_sdr : out std_logic;
virtual_state_udr : out std_logic;
virtual_state_uir : out std_logic
);
end component;
begin
tapo_rst <= '0';
tapo_xsel1 <= '0'; tapo_xsel2 <= '0';
u0 : sld_virtual_jtag
generic map (sld_ir_width => 8,
sld_auto_instance_index => "NO",
sld_instance_index => 0)
port map (ir_in => tapo_inst,
ir_out => ir0,
jtag_state_cdr => open,
jtag_state_cir => open,
jtag_state_e1dr => open,
jtag_state_e1ir => open,
jtag_state_e2dr => open,
jtag_state_e2ir => open,
jtag_state_pdr => open,
jtag_state_pir => open,
jtag_state_rti => open,
jtag_state_sdr => open,
jtag_state_sdrs => open,
jtag_state_sir => open,
jtag_state_sirs => open,
jtag_state_tlr => open,
jtag_state_udr => open,
jtag_state_uir => open,
tck => tapo_tck,
tdi => tapo_tdi,
tdo => tapi_tdo1,
tms => open,
virtual_state_cdr => tapo_capt,
virtual_state_cir => open,
virtual_state_e1dr => open,
virtual_state_e2dr => open,
virtual_state_pdr => open,
virtual_state_sdr => tapo_shft,
virtual_state_udr => tapo_upd,
virtual_state_uir => open);
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/lib/opencores/i2c/i2coc.vhd | 3 | 3225 | ---------------------------------------------------------------------
---- ----
---- Copyright (C) 2000 Richard Herveille ----
---- [email protected] ----
---- ----
---- This source file may be used and distributed without ----
---- restriction provided that this copyright statement is not ----
---- removed from the file and that any derivative work contains ----
---- the original copyright notice and the associated disclaimer.----
---- ----
---- THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY ----
---- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED ----
---- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ----
---- FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR ----
---- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ----
---- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ----
---- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE ----
---- GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR ----
---- BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF ----
---- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ----
---- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT ----
---- OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ----
---- POSSIBILITY OF SUCH DAMAGE. ----
---- ----
---------------------------------------------------------------------
-- Package containing i2c master byte controller component. Component
-- declaration expanded and separated into this file by [email protected].
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
package i2coc is
component i2c_master_byte_ctrl is
generic (filter : integer; dynfilt : integer);
port (
clk : in std_logic;
rst : in std_logic; -- active high reset
nReset : in std_logic; -- asynchornous active low reset
-- (not used in GRLIB)
ena : in std_logic; -- core enable signal
clk_cnt : in std_logic_vector(15 downto 0); -- 4x SCL
-- input signals
start,
stop,
read,
write,
ack_in : std_logic;
din : in std_logic_vector(7 downto 0);
filt : in std_logic_vector((filter-1)*dynfilt downto 0);
-- output signals
cmd_ack : out std_logic;
ack_out : out std_logic;
i2c_busy : out std_logic;
i2c_al : out std_logic;
dout : out std_logic_vector(7 downto 0);
-- i2c lines
scl_i : in std_logic; -- i2c clock line input
scl_o : out std_logic; -- i2c clock line output
scl_oen : out std_logic; -- i2c clock line output enable, active low
sda_i : in std_logic; -- i2c data line input
sda_o : out std_logic; -- i2c data line output
sda_oen : out std_logic -- i2c data line output enable, active low
);
end component i2c_master_byte_ctrl;
end;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/lib/gaisler/leon3/leon3.in.vhd | 1 | 2977 | -- LEON3 processor core
constant CFG_LEON3 : integer := CONFIG_LEON3;
constant CFG_NCPU : integer := CONFIG_PROC_NUM;
constant CFG_NWIN : integer := CONFIG_IU_NWINDOWS;
constant CFG_V8 : integer := CFG_IU_V8 + 4*CFG_IU_MUL_STRUCT;
constant CFG_MAC : integer := CONFIG_IU_MUL_MAC;
constant CFG_BP : integer := CONFIG_IU_BP;
constant CFG_SVT : integer := CONFIG_IU_SVT;
constant CFG_RSTADDR : integer := 16#CONFIG_IU_RSTADDR#;
constant CFG_LDDEL : integer := CONFIG_IU_LDELAY;
constant CFG_NOTAG : integer := CONFIG_NOTAG;
constant CFG_NWP : integer := CONFIG_IU_WATCHPOINTS;
constant CFG_PWD : integer := CONFIG_PWD*2;
constant CFG_FPU : integer := CONFIG_FPU + 16*CONFIG_FPU_NETLIST + 32*CONFIG_FPU_GRFPU_SHARED;
constant CFG_GRFPUSH : integer := CONFIG_FPU_GRFPU_SHARED;
constant CFG_ICEN : integer := CONFIG_ICACHE_ENABLE;
constant CFG_ISETS : integer := CFG_IU_ISETS;
constant CFG_ISETSZ : integer := CFG_ICACHE_SZ;
constant CFG_ILINE : integer := CFG_ILINE_SZ;
constant CFG_IREPL : integer := CFG_ICACHE_ALGORND;
constant CFG_ILOCK : integer := CONFIG_ICACHE_LOCK;
constant CFG_ILRAMEN : integer := CONFIG_ICACHE_LRAM;
constant CFG_ILRAMADDR: integer := 16#CONFIG_ICACHE_LRSTART#;
constant CFG_ILRAMSZ : integer := CFG_ILRAM_SIZE;
constant CFG_DCEN : integer := CONFIG_DCACHE_ENABLE;
constant CFG_DSETS : integer := CFG_IU_DSETS;
constant CFG_DSETSZ : integer := CFG_DCACHE_SZ;
constant CFG_DLINE : integer := CFG_DLINE_SZ;
constant CFG_DREPL : integer := CFG_DCACHE_ALGORND;
constant CFG_DLOCK : integer := CONFIG_DCACHE_LOCK;
constant CFG_DSNOOP : integer := CONFIG_DCACHE_SNOOP*2 + 4*CONFIG_DCACHE_SNOOP_SEPTAG;
constant CFG_DFIXED : integer := 16#CONFIG_CACHE_FIXED#;
constant CFG_DLRAMEN : integer := CONFIG_DCACHE_LRAM;
constant CFG_DLRAMADDR: integer := 16#CONFIG_DCACHE_LRSTART#;
constant CFG_DLRAMSZ : integer := CFG_DLRAM_SIZE;
constant CFG_MMUEN : integer := CONFIG_MMUEN;
constant CFG_ITLBNUM : integer := CONFIG_ITLBNUM;
constant CFG_DTLBNUM : integer := CONFIG_DTLBNUM;
constant CFG_TLB_TYPE : integer := CONFIG_TLB_TYPE + CFG_MMU_FASTWB*2;
constant CFG_TLB_REP : integer := CONFIG_TLB_REP;
constant CFG_MMU_PAGE : integer := CONFIG_MMU_PAGE;
constant CFG_DSU : integer := CONFIG_DSU_ENABLE;
constant CFG_ITBSZ : integer := CFG_DSU_ITB;
constant CFG_ATBSZ : integer := CFG_DSU_ATB;
constant CFG_LEON3FT_EN : integer := CONFIG_LEON3FT_EN;
constant CFG_IUFT_EN : integer := CONFIG_IUFT_EN;
constant CFG_FPUFT_EN : integer := CONFIG_FPUFT;
constant CFG_RF_ERRINJ : integer := CONFIG_RF_ERRINJ;
constant CFG_CACHE_FT_EN : integer := CONFIG_CACHE_FT_EN;
constant CFG_CACHE_ERRINJ : integer := CONFIG_CACHE_ERRINJ;
constant CFG_LEON3_NETLIST: integer := CONFIG_LEON3_NETLIST;
constant CFG_DISAS : integer := CONFIG_IU_DISAS + CONFIG_IU_DISAS_NET;
constant CFG_PCLOW : integer := CFG_DEBUG_PC32;
| gpl-2.0 |
schmr/grlib | grlib-gpl-1.3.7-b4144/designs/leon3-digilent-atlys/ahbrom.vhd | 3 | 13745 |
----------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2010 Aeroflex Gaisler
----------------------------------------------------------------------------
-- Entity: ahbrom
-- File: ahbrom.vhd
-- Author: Jiri Gaisler - Gaisler Research
-- Description: AHB rom. 0/1-waitstate read
----------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.all;
use grlib.stdlib.all;
use grlib.devices.all;
entity ahbrom is
generic (
hindex : integer := 0;
haddr : integer := 0;
hmask : integer := 16#fff#;
pipe : integer := 0;
tech : integer := 0;
kbytes : integer := 1);
port (
rst : in std_ulogic;
clk : in std_ulogic;
ahbsi : in ahb_slv_in_type;
ahbso : out ahb_slv_out_type
);
end;
architecture rtl of ahbrom is
constant abits : integer := 10;
constant bytes : integer := 976;
constant hconfig : ahb_config_type := (
0 => ahb_device_reg ( VENDOR_GAISLER, GAISLER_AHBROM, 0, 0, 0),
4 => ahb_membar(haddr, '1', '1', hmask), others => zero32);
signal romdata : std_logic_vector(31 downto 0);
signal addr : std_logic_vector(abits-1 downto 2);
signal hsel, hready : std_ulogic;
begin
ahbso.hresp <= "00";
ahbso.hsplit <= (others => '0');
ahbso.hirq <= (others => '0');
ahbso.hconfig <= hconfig;
ahbso.hindex <= hindex;
reg : process (clk)
begin
if rising_edge(clk) then
addr <= ahbsi.haddr(abits-1 downto 2);
end if;
end process;
p0 : if pipe = 0 generate
ahbso.hrdata <= ahbdrivedata(romdata);
ahbso.hready <= '1';
end generate;
p1 : if pipe = 1 generate
reg2 : process (clk)
begin
if rising_edge(clk) then
hsel <= ahbsi.hsel(hindex) and ahbsi.htrans(1);
hready <= ahbsi.hready;
ahbso.hready <= (not rst) or (hsel and hready) or
(ahbsi.hsel(hindex) and not ahbsi.htrans(1) and ahbsi.hready);
ahbso.hrdata <= ahbdrivedata(romdata);
end if;
end process;
end generate;
comb : process (addr)
begin
case conv_integer(addr) is
when 16#00000# => romdata <= X"821020C0";
when 16#00001# => romdata <= X"81884000";
when 16#00002# => romdata <= X"01000000";
when 16#00003# => romdata <= X"01000000";
when 16#00004# => romdata <= X"81900000";
when 16#00005# => romdata <= X"01000000";
when 16#00006# => romdata <= X"01000000";
when 16#00007# => romdata <= X"81980000";
when 16#00008# => romdata <= X"01000000";
when 16#00009# => romdata <= X"01000000";
when 16#0000A# => romdata <= X"C0A00040";
when 16#0000B# => romdata <= X"01000000";
when 16#0000C# => romdata <= X"01000000";
when 16#0000D# => romdata <= X"11200000";
when 16#0000E# => romdata <= X"90122100";
when 16#0000F# => romdata <= X"821020A2";
when 16#00010# => romdata <= X"C222200C";
when 16#00011# => romdata <= X"82102003";
when 16#00012# => romdata <= X"C2222008";
when 16#00013# => romdata <= X"11000000";
when 16#00014# => romdata <= X"90122344";
when 16#00015# => romdata <= X"40000091";
when 16#00016# => romdata <= X"01000000";
when 16#00017# => romdata <= X"113FFC00";
when 16#00018# => romdata <= X"90122200";
when 16#00019# => romdata <= X"82102018";
when 16#0001A# => romdata <= X"C2222004";
when 16#0001B# => romdata <= X"9010202E";
when 16#0001C# => romdata <= X"40000080";
when 16#0001D# => romdata <= X"01000000";
when 16#0001E# => romdata <= X"113FFC00";
when 16#0001F# => romdata <= X"90122200";
when 16#00020# => romdata <= X"C2022008";
when 16#00021# => romdata <= X"80886004";
when 16#00022# => romdata <= X"02BFFFFC";
when 16#00023# => romdata <= X"01000000";
when 16#00024# => romdata <= X"9010202E";
when 16#00025# => romdata <= X"40000077";
when 16#00026# => romdata <= X"01000000";
when 16#00027# => romdata <= X"113FFC00";
when 16#00028# => romdata <= X"90122100";
when 16#00029# => romdata <= X"13208821";
when 16#0002A# => romdata <= X"92126091";
when 16#0002B# => romdata <= X"D2220000";
when 16#0002C# => romdata <= X"1300B140";
when 16#0002D# => romdata <= X"D2222008";
when 16#0002E# => romdata <= X"92102100";
when 16#0002F# => romdata <= X"D222200C";
when 16#00030# => romdata <= X"130011C0";
when 16#00031# => romdata <= X"92126004";
when 16#00032# => romdata <= X"D2222010";
when 16#00033# => romdata <= X"13208821";
when 16#00034# => romdata <= X"92126091";
when 16#00035# => romdata <= X"03000040";
when 16#00036# => romdata <= X"92124001";
when 16#00037# => romdata <= X"D2220000";
when 16#00038# => romdata <= X"9010202E";
when 16#00039# => romdata <= X"40000063";
when 16#0003A# => romdata <= X"01000000";
when 16#0003B# => romdata <= X"40000051";
when 16#0003C# => romdata <= X"01000000";
when 16#0003D# => romdata <= X"40000081";
when 16#0003E# => romdata <= X"01000000";
when 16#0003F# => romdata <= X"9010202E";
when 16#00040# => romdata <= X"4000005C";
when 16#00041# => romdata <= X"01000000";
when 16#00042# => romdata <= X"40000070";
when 16#00043# => romdata <= X"01000000";
when 16#00044# => romdata <= X"9010202E";
when 16#00045# => romdata <= X"40000057";
when 16#00046# => romdata <= X"01000000";
when 16#00047# => romdata <= X"A2100000";
when 16#00048# => romdata <= X"A4100000";
when 16#00049# => romdata <= X"A6103FFF";
when 16#0004A# => romdata <= X"40000074";
when 16#0004B# => romdata <= X"01000000";
when 16#0004C# => romdata <= X"80A460A0";
when 16#0004D# => romdata <= X"22800002";
when 16#0004E# => romdata <= X"90100000";
when 16#0004F# => romdata <= X"80A22000";
when 16#00050# => romdata <= X"1280000B";
when 16#00051# => romdata <= X"A404A001";
when 16#00052# => romdata <= X"80A4A010";
when 16#00053# => romdata <= X"24800008";
when 16#00054# => romdata <= X"A4100000";
when 16#00055# => romdata <= X"80A4FFFF";
when 16#00056# => romdata <= X"32800005";
when 16#00057# => romdata <= X"A4100000";
when 16#00058# => romdata <= X"A534A001";
when 16#00059# => romdata <= X"A6244012";
when 16#0005A# => romdata <= X"A4100000";
when 16#0005B# => romdata <= X"4000003D";
when 16#0005C# => romdata <= X"01000000";
when 16#0005D# => romdata <= X"80A460A0";
when 16#0005E# => romdata <= X"A2046001";
when 16#0005F# => romdata <= X"12BFFFEB";
when 16#00060# => romdata <= X"01000000";
when 16#00061# => romdata <= X"80A4FFFF";
when 16#00062# => romdata <= X"02800022";
when 16#00063# => romdata <= X"01000000";
when 16#00064# => romdata <= X"11000000";
when 16#00065# => romdata <= X"9012234F";
when 16#00066# => romdata <= X"40000040";
when 16#00067# => romdata <= X"01000000";
when 16#00068# => romdata <= X"9134E004";
when 16#00069# => romdata <= X"40000033";
when 16#0006A# => romdata <= X"90022030";
when 16#0006B# => romdata <= X"900CE00F";
when 16#0006C# => romdata <= X"80A2200A";
when 16#0006D# => romdata <= X"90022030";
when 16#0006E# => romdata <= X"36800002";
when 16#0006F# => romdata <= X"90022027";
when 16#00070# => romdata <= X"4000002C";
when 16#00071# => romdata <= X"01000000";
when 16#00072# => romdata <= X"4000001A";
when 16#00073# => romdata <= X"01000000";
when 16#00074# => romdata <= X"4000004A";
when 16#00075# => romdata <= X"01000000";
when 16#00076# => romdata <= X"80A4E000";
when 16#00077# => romdata <= X"02800006";
when 16#00078# => romdata <= X"01000000";
when 16#00079# => romdata <= X"4000001F";
when 16#0007A# => romdata <= X"01000000";
when 16#0007B# => romdata <= X"10BFFFF9";
when 16#0007C# => romdata <= X"A624E001";
when 16#0007D# => romdata <= X"11000000";
when 16#0007E# => romdata <= X"90122360";
when 16#0007F# => romdata <= X"40000027";
when 16#00080# => romdata <= X"01000000";
when 16#00081# => romdata <= X"03380800";
when 16#00082# => romdata <= X"81C04000";
when 16#00083# => romdata <= X"01000000";
when 16#00084# => romdata <= X"11000000";
when 16#00085# => romdata <= X"90122368";
when 16#00086# => romdata <= X"40000020";
when 16#00087# => romdata <= X"01000000";
when 16#00088# => romdata <= X"40000004";
when 16#00089# => romdata <= X"01000000";
when 16#0008A# => romdata <= X"10BFFFF7";
when 16#0008B# => romdata <= X"01000000";
when 16#0008C# => romdata <= X"03200000";
when 16#0008D# => romdata <= X"113FFC00";
when 16#0008E# => romdata <= X"90122100";
when 16#0008F# => romdata <= X"1300B140";
when 16#00090# => romdata <= X"92124001";
when 16#00091# => romdata <= X"D2222008";
when 16#00092# => romdata <= X"82102014";
when 16#00093# => romdata <= X"82A06001";
when 16#00094# => romdata <= X"12BFFFFF";
when 16#00095# => romdata <= X"01000000";
when 16#00096# => romdata <= X"81C3E008";
when 16#00097# => romdata <= X"01000000";
when 16#00098# => romdata <= X"0300003F";
when 16#00099# => romdata <= X"821063FF";
when 16#0009A# => romdata <= X"10BFFFF3";
when 16#0009B# => romdata <= X"01000000";
when 16#0009C# => romdata <= X"03200000";
when 16#0009D# => romdata <= X"82106100";
when 16#0009E# => romdata <= X"C2006004";
when 16#0009F# => romdata <= X"80886004";
when 16#000A0# => romdata <= X"02BFFFFC";
when 16#000A1# => romdata <= X"03200000";
when 16#000A2# => romdata <= X"82106100";
when 16#000A3# => romdata <= X"D0204000";
when 16#000A4# => romdata <= X"81C3E008";
when 16#000A5# => romdata <= X"01000000";
when 16#000A6# => romdata <= X"9A10000F";
when 16#000A7# => romdata <= X"92100008";
when 16#000A8# => romdata <= X"D00A4000";
when 16#000A9# => romdata <= X"80A20000";
when 16#000AA# => romdata <= X"02800006";
when 16#000AB# => romdata <= X"92026001";
when 16#000AC# => romdata <= X"7FFFFFF0";
when 16#000AD# => romdata <= X"01000000";
when 16#000AE# => romdata <= X"10BFFFFA";
when 16#000AF# => romdata <= X"01000000";
when 16#000B0# => romdata <= X"81C36008";
when 16#000B1# => romdata <= X"01000000";
when 16#000B2# => romdata <= X"11100000";
when 16#000B3# => romdata <= X"13000000";
when 16#000B4# => romdata <= X"92126374";
when 16#000B5# => romdata <= X"94102010";
when 16#000B6# => romdata <= X"C2024000";
when 16#000B7# => romdata <= X"92026004";
when 16#000B8# => romdata <= X"C2220000";
when 16#000B9# => romdata <= X"94A2A001";
when 16#000BA# => romdata <= X"12BFFFFC";
when 16#000BB# => romdata <= X"90022004";
when 16#000BC# => romdata <= X"81C3E008";
when 16#000BD# => romdata <= X"01000000";
when 16#000BE# => romdata <= X"11100000";
when 16#000BF# => romdata <= X"13000000";
when 16#000C0# => romdata <= X"92126374";
when 16#000C1# => romdata <= X"D41A0000";
when 16#000C2# => romdata <= X"90022008";
when 16#000C3# => romdata <= X"C2024000";
when 16#000C4# => romdata <= X"80A0400A";
when 16#000C5# => romdata <= X"1280000A";
when 16#000C6# => romdata <= X"C2026004";
when 16#000C7# => romdata <= X"80A0400B";
when 16#000C8# => romdata <= X"12800007";
when 16#000C9# => romdata <= X"92026008";
when 16#000CA# => romdata <= X"808A2040";
when 16#000CB# => romdata <= X"02BFFFF6";
when 16#000CC# => romdata <= X"01000000";
when 16#000CD# => romdata <= X"81C3E008";
when 16#000CE# => romdata <= X"90102001";
when 16#000CF# => romdata <= X"81C3E008";
when 16#000D0# => romdata <= X"90102000";
when 16#000D1# => romdata <= X"0D0A4148";
when 16#000D2# => romdata <= X"42524F4D";
when 16#000D3# => romdata <= X"3A200020";
when 16#000D4# => romdata <= X"64647232";
when 16#000D5# => romdata <= X"5F64656C";
when 16#000D6# => romdata <= X"6179203D";
when 16#000D7# => romdata <= X"20307800";
when 16#000D8# => romdata <= X"2C204F4B";
when 16#000D9# => romdata <= X"2E0D0A00";
when 16#000DA# => romdata <= X"4641494C";
when 16#000DB# => romdata <= X"45440D0A";
when 16#000DC# => romdata <= X"00000000";
when 16#000DD# => romdata <= X"12345678";
when 16#000DE# => romdata <= X"F0C3A596";
when 16#000DF# => romdata <= X"6789ABCD";
when 16#000E0# => romdata <= X"A6F1590E";
when 16#000E1# => romdata <= X"EDCBA987";
when 16#000E2# => romdata <= X"0F3C5A69";
when 16#000E3# => romdata <= X"98765432";
when 16#000E4# => romdata <= X"590EA6F1";
when 16#000E5# => romdata <= X"FFFF0000";
when 16#000E6# => romdata <= X"0000FFFF";
when 16#000E7# => romdata <= X"5AC3FFFF";
when 16#000E8# => romdata <= X"0000A53C";
when 16#000E9# => romdata <= X"01510882";
when 16#000EA# => romdata <= X"F4D908FD";
when 16#000EB# => romdata <= X"9B6F7A46";
when 16#000EC# => romdata <= X"C721271D";
when 16#000ED# => romdata <= X"00000000";
when 16#000EE# => romdata <= X"00000000";
when 16#000EF# => romdata <= X"00000000";
when 16#000F0# => romdata <= X"00000000";
when 16#000F1# => romdata <= X"00000000";
when 16#000F2# => romdata <= X"00000000";
when 16#000F3# => romdata <= X"00000000";
when 16#000F4# => romdata <= X"00000000";
when others => romdata <= (others => '-');
end case;
end process;
-- pragma translate_off
bootmsg : report_version
generic map ("ahbrom" & tost(hindex) &
": 32-bit AHB ROM Module, " & tost(bytes/4) & " words, " & tost(abits-2) & " address bits" );
-- pragma translate_on
end;
| gpl-2.0 |
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