Taito X1-017 pinout
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Taito X1-017: 64-pin 0.6" shrink DIP (Canonically mapper 82)
.---\/---. $7EFA.5 (PRG A) <- |01 64| -- VCC (fw) CPU A13 -> |02 63| <- M2 (f) (frw) CPU A8 -> |03 62| -> $7EFA.0 (PRG A) (frw) CPU A7 -> |04 61| -> $7EFA.2 (PRG A) (frw) CPU A9 -> |05 60| -> $7EFA.1 (PRG A) (fw) CPU A14 -> |06 59| -> $7EFA.3 (PRG A) (frw) CPU A11 -> |07 58| -> $7EFA.4 (PRG A) (frw) CPU A6 -> |08 57| <- CPU A12 (frw) (frw) CPU A5 -> |09 56| -> delayed M2 by ~80ns, open collector (frw) CPU A10 -> |10 55| -> delayed M2 by ~80ns (frw) CPU A4 -> |11 54| -> delayed M2 by ~40ns (frw) CPU A3 -> |12 53| <- PRG RAM +CE (jumpered to pin 55 by default) (frw) CPU D7 <> |13 52| -- VCC (frw) CPU A2 -> |14 51| -- GND (frw) CPU D6 <> |15 50| -- PAD2 (NC) (frw) CPU A1 -> |16 49| -- VBAT (direct connect to positive battery terminal) (frw) CPU D5 <> |17 48| -- RAM VCC (frw) CPU A0 -> |18 47| -- GND (frw) CPU D4 <> |19 46| <- PRG RAM +WE (jumpered to pin 56 with C3+R2) (frw) CPU D0 <> |20 45| -> CHR0 /CE (lower 128KB ROM if two 128KB CHR ROMs) (frw) CPU D3 <> |21 44| -> CHR1 /CE (upper 128KB ROM if two 128KB CHR ROMs) (frw) CPU D1 <> |22 43| -- GND (frw) CPU D2 <> |23 42| -> CHR A11 (r) (f) CPU R/W -> |24 41| -> CIRAM A10 (f) (fr) /ROMSEL -> |25 40| -> CHR A17 (r) (f) /IRQ <- |26 39| <- PPU A10 (f) GND -- |27 38| -> CHR A16 (r) (PPU /RD) OR A -> |28 37| <- PPU A11 (f) (r) CHR A15 <- |29 36| -> CHR A10 (r) (r) CHR A14 <- |30 35| <- PPU A12 (f) (r) CHR A13 <- |31 34| -> OR Y (CHR /CE) (r) CHR A12 <- |32 33| <- OR B (PPU A13) '--------'
Wiring of PRG address pins:
- OEM PCBs wires: $7EFA.5 as PRG-A13, $7EFA.4 as PRG-A14, $7EFA.3 as PRG-A15, $7EFA.2 as PRG-A16 and skips $7EFA.1 and $7EFA.0. Mapper 552 should be used to descibe it.
- The inaccurate definition of mapper 82 and all ROM dumps that are assigned to it assumes: $7EFA.5 as PRG-A16, $7EFA.4 as PRG-A15, $7EFA.3 as PRG-A14 and $7EFA.2 as PRG-A13 [1]
Sources: