PCB Info file:
/ Arcadecl.txt
[Jun/29/99]
Arcade Classics
Atari 1992 (proto)
A051077
28C16 62256 62256
M6295 PROG1
ADPCM PROG0 MOBS 137593-001
68000-8 137536-001
14.318MHz 137550-001
137304-2002
4464
4464
4464
HM3-65764 4464
-
[MAME]
Memory map
========================================================================
MAIN CPU
========================================================================
000000-0FFFFF R xxxxxxxx xxxxxxxx Program ROM
200000-21FFFF R/W xxxxxxxx xxxxxxxx Playfield RAM (512x256 pixels)
R/W xxxxxxxx -------- (Left pixel)
R/W -------- xxxxxxxx (Right pixel)
3C0000-3C01FF R/W xxxxxxxx xxxxxxxx Playfield palette RAM (256 entries)
R/W x------- -------- (RGB 1 LSB)
R/W -xxxxx-- -------- (Red 5 MSB)
R/W ------xx xxx----- (Green 5 MSB)
R/W -------- ---xxxxx (Blue 5 MSB)
3C0200-3C03FF R/W xxxxxxxx xxxxxxxx Motion object palette RAM (256 entries)
3C0400-3C07FF R/W xxxxxxxx xxxxxxxx Extra palette RAM (512 entries)
3E0000-3E07FF R/W xxxxxxxx xxxxxxxx Motion object RAM (256 entries x 4 words)
R/W -------- xxxxxxxx (0: Link to next object)
R/W x------- -------- (1: Horizontal flip)
R/W -xxxxxxx xxxxxxxx (1: Tile index)
R/W xxxxxxxx x------- (2: X position)
R/W -------- ----xxxx (2: Palette select)
R/W xxxxxxxx x------- (3: Y position)
R/W -------- -xxx---- (3: Number of X tiles - 1)
R/W -------- -----xxx (3: Number of Y tiles - 1)
3E0800-3EFFFF R/W xxxxxxxx xxxxxxxx Extra sprite RAM
640000 R xxxxxxxx -------- Input port 1
640002 R xxxxxxxx -------- Input port 2
640010 R -------- xx------ Status port
R -------- x------- (VBLANK)
R -------- -x------ (Self test)
640012 R -------- --xx--xx Coin inputs
R -------- --xx---- (Service coins)
R -------- ------xx (Coin switches)
640020-640027 R -------- xxxxxxxx Analog inputs
640040 W -------- x--xxxxx Sound control
W -------- x------- (ADPCM bank select)
W -------- ---xxxxx (Volume)
640060 W -------- -------- EEPROM enable
641000-641FFF R/W -------- xxxxxxxx EEPROM
642000-642001 R/W xxxxxxxx -------- MSM6295 communications
646000 W -------- -------- 32V IRQ acknowledge
647000 W -------- -------- Watchdog reset
========================================================================
Interrupts:
IRQ4 = 32V
========================================================================
-