Compatible peripherals Zilog introduced a number of peripheral parts for the Z80, which all support the Z80's interrupt handling system and I/O address space. These include the counter/timer channel (CTC), the SIO (serial input/output), the DMA (direct memory access), the PIO (parallel input/output) and the DART (dual asynchronous receiver–transmitter). As the product line developed, low-power, high-speed and CMOS versions of these chips were introduced.
Compatible peripherals Zilog introduced a number of peripheral parts for the Z80, which all support the Z80's interrupt handling system and I/O address space. These include the counter/timer channel (CTC), the SIO (serial input/output), the DMA (direct memory access), the PIO (parallel input/output) and the DART (dual asynchronous receiver–transmitter). As the product line developed, low-power, high-speed and CMOS versions of these chips were introduced