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Star Wars Memory Map
Main PCB
hex adr   address bus      r/w data bus  function

0000-07FF 00000AAAAAAAAAAA R/W DDDDDDDD  /VRAM0
0800-0FFF 00001AAAAAAAAAAA R/W DDDDDDDD  /VRAM1
1000-17FF 00010AAAAAAAAAAA R/W DDDDDDDD  /VRAM2
1800-1FFF 00011AAAAAAAAAAA R/W DDDDDDDD  /VRAM3
2000-27FF 00100AAAAAAAAAAA R/W DDDDDDDD  /VRAM4
2800-2FFF 00101AAAAAAAAAAA R/W DDDDDDDD  /VRAM5
2800-2FFF 00110AAAAAAAAAAA R/W DDDDDDDD  /VRAM6
3000-3FFF 0011AAAAAAAAAAAA R/W DDDDDDDD  /VROM

4300      01000011000xxxxx R   D         /LEFT F/S
                                D        /RIGHT F/S
                                 D       SPARE 1
                                  D      /SELF-TEST
                                   D     /SLAM
                                    D    /COIN AUX
                                     D   /COIN L
                                      D  /COIN R

4320      01000011001xxxxx R    D         MATH RUN
                                 D        VGHALT
                                  D       /LEFT THUMB
                                   D      /RIGHT THUMB
                                    D     SPARE 2
                                     D    /DIAGN
                                      D   UNUSED
                                       D  UNUSED

4340      01000011010xxxxx R    DDDDDDDD  /OPT0
4360      01000011011xxxxx R    DDDDDDDD  /OPT1
4380      01000011100xxxxx R    DDDDDDDD  /ADC
 
4400      01000100xxxxxxx0 R    DDDDDDDD  /MAINREAD
4400      01000100xxxxxxx0 W    DDDDDDDD  /MAINWR
 
4401      01000100xxxxxxx1 R    DDDDDDDD  MAIN READY FLAG
4401      01000100xxxxxxx1 W    DDDDDDDD  SOUND READY FLAG
 
4500-45FF 01000101AAAAAAAA R/W xxxxDDDD  /NOVRAM

4600      01000110000xxxxx W             /EVGGO
4620      01000110001xxxxx W             /EVGRES
4640      01000110010xxxxx W             /WDCLR
4660      01000110011xxxxx W             /IRQCLR

4680      01000110100xx000 W   Dxxxxxxx  /COIN CTR2
4681      01000110100xx001 W   Dxxxxxxx  /COIN CTR1
4682      01000110100xx010 W   Dxxxxxxx  /LED3
4683      01000110100xx011 W   Dxxxxxxx  /LED2
4684      01000110100xx100 W   Dxxxxxxx  MPAGE
4685      01000110100xx101 W   Dxxxxxxx  /PRNGCLR
4686      01000110100xx110 W   Dxxxxxxx  /LED 1
4687      01000110100xx111 W   Dxxxxxxx  /RECALL

46A0      01000110101xxxxx W             /NSTORE

46C0      01000110110xxx00 W             /ADCSTART0
46C1      01000110110xxx01 W             /ADCSTART1
46C2      01000110110xxx10 W             /ADCSTART2

46E0      01000110111xxxxx W             /SOUNDRST

4700      01000111xxxxx000 R   DDDDDDDD  /REH
          01000111xxxxx000 W   DDDDDDDD  /MWO
4701      01000111xxxxx001 R   DDDDDDDD  /REL
          01000111xxxxx001 W   DDDDDDDD  /MW1
4702      01000111xxxxx010 W   DDDDDDDD  /MW2
4703      01000111xxxxx011 R   DDDDDDDD  /PRNG (8 bit random number generator)
4704      01000111xxxxx100 W   DDDDDDDD  /DVSRH
4705      01000111xxxxx101 W   DDDDDDDD  /DVSRL
4706      01000111xxxxx110 W   DDDDDDDD  /DVDDH
4707      01000111xxxxx111 W   DDDDDDDD  /DVDDL

4800-4FFF 01001AAAAAAAAAAA R/W DDDDDDDD  /RAM

5000-5FFF 0101AAAAAAAAAAAA R/W DDDDDDDD  /MBRAM

6000-7FFF 011AAAAAAAAAAAAA R   DDDDDDDD  /ROM0
8000-9FFF 100AAAAAAAAAAAAA R   DDDDDDDD  /ROM1
A000-BFFF 101AAAAAAAAAAAAA R   DDDDDDDD  /ROM2
C000-DFFF 110AAAAAAAAAAAAA R   DDDDDDDD  /ROM3
E000-FFFF 111AAAAAAAAAAAAA R   DDDDDDDD  /ROM4

Sound PCB
hex adr   address bus      r/w data bus  function
0000      x0000xxxxxxxxxxx W   DDDDDDDD  SOUT
0800      x0001xxxxxxxxxxx R   DDDDDDDD  SIN

1000-107F x0010xxx0AAAAAAA R/W DDDDDDDD  PIA(RAM)
1080      x0010xxx1xxx 000 R/W DDDDDDDD  PIA(PORT A DATA)
1081      x0010xxx1xxxx001 R/W DDDDDDDD  PIA(PORT A DIR)
1082      x0010xxx1xxxx010 R/W DDDDDDDD  PIA(PORT B DATA)
1083      x0010xxx1xxxx011 R/W DDDDDDDD  PIA(PORT B DIR)
1084-109F x0010xxx1xxxA1AA R/W DDDDDDDD  PIA(CONTROL)

1800-1807 x0011xxxxx000AAA R/W DDDDDDDD  CIO-0 (SOUND) 
1808-180F x0011xxxxx001AAA R/W DDDDDDDD  CIO-1 (SOUND)
1810-1817 x0011xxxxx010AAA R/W DDDDDDDD  CIO-2 (SOUND)
1818-181F x0011xxxxx011AAA R/W DDDDDDDD  CIO-3 (SOUND)

1820-1827 x0011xxxxx100AAA R/W DDDDDDDD  CIO-0 (CONTROL)
1828-182F x0011xxxxx101AAA R/W DDDDDDDD  CIO-1 (CONTROL)
1830-1837 x0011xxxxx110AAA R/W DDDDDDDD  CIO-2 (CONTROL)
1838-183F x0011xxxxx111AAA R/W DDDDDDDD  CIO-3 (CONTROL)

2000-27FF x01xxAAAAAAAAAAA R/W DDDDDDDD PROGRAM RAM

4000-5FFF x10AAAAAAAAAAAAA R   DDDDDDDD SROM0
6000-7FFF x11AAAAAAAAAAAAA R   DDDDDDDD SROM1