NEO-D0


 * Clock divider
 * memory and port control
 * interface
 * Memory card bank selection
 * Joypad outputs

Maybe similar to on the NeoGeo CD. Close to the audio hardware.

=Pinout=

OpenOffice Draw file:

=Signals=


 * D0~D5: data bus for joypad outputs
 * BNK0~BNK2: Memory card upper address lines to
 * A4: 68k address line
 * 4116CS: Z80 RAM /CS
 * 2610*: YM2610 control lines
 * OUT1~OUT6: Joypad outputs
 * SDMRD/SDMRW: Z80 ROM/RAM control lines
 * SDRD0/SDRD1: Z80 port reads to in cartridge
 * SDZ80*: Control lines to