b9823103_ammer_for_ARM_and_Cortex_cores__Description
[Pin] 5 [Signal] TDI [Type] Output [Description] 
JTAG data input of target CPU. It is recommended that this pin is pulled to a defined state on the target board. Typically connected to TDI on target CPU.
SEGGER | Flasher ARM | Flash Programmer for ARM and Cortex cores
Description