Z80



The Z80 is an 8-bit little-endian CPU designed by Zilog.

All NeoGeo systems use it to handle sound and music playback. It runs at 4MHz and only has access to the, or Z80 files, and its own RAM.

See 68k/Z80 communication.

Since it doesn't share a RAM area with the CPU like on the Sega Genesis, it can't be used efficiently to perform gameplay-related tasks.

See Z80 memory map and Z80 port map.



Datasheet
Official Z8400 datasheet: []