NEO-D0




 * 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=

OpenOffice Draw file:


 * 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