NEO-D0

NEO-D0 chip found on an AES board.

• Clock generation
• YM2610 control
• Z80 port control (I/O to 68k and YM2610)
• Memory card banking
• Joypad outputs

Probably similar to NEO-SUD on the NeoGeo CD. Close to the audio hardware.

Pinouts

File:Neo-d0 pinout.png

OpenOffice Draw file: File:Neo-d0.odg

• D0~D5: 68k data bus
• BNK0~BNK2: To NEO-E0 (on multislot boards ?)
• A4: 68k address line
• 4116CS: Z80 RAM /CS
• 2610*: YM2610 control lines
• OUT1~OUT6: Joypad outputs
• SDMRD/SDMRW: Z80 SM1/RAM control lines
• SDZ80*: From NEO-C1