Z80



The Z80 is an 8bit CPU designed by Zilog.

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

See 68k/Z80 communication.

Since it doesn't share any memory area with the CPU as 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: []