NTDEC TC-112 pinout: Difference between revisions
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(krzysiobal says pin 34 allows for a single 256KB CHR ROM, but that means this IC doesn't support more than 128KB PRG) |
Krzysiobal (talk | contribs) (explain what CHR1 and CHR2 is) |
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| Line 14: | Line 14: | ||
(n) CPU /CE -> |12 29| -> CHR A12 (r) | (n) CPU /CE -> |12 29| -> CHR A12 (r) | ||
(n) CPU A14 -> |13 28| -> CHR A11 (r) | (n) CPU A14 -> |13 28| -> CHR A11 (r) | ||
(n) CPU A13 -> |14 27| -> CHR1 /CE (r) | (n) CPU A13 -> |14 27| -> CHR1 /CE (r) = (PPU /RD) or (PPU A13) or (CHR A17) | ||
(n) PPU A13 -> |15 26| -> CHR2 /CE (r) | (n) PPU A13 -> |15 26| -> CHR2 /CE (r) = (PPU /RD) or (PPU A13) or (not CHR A17) | ||
(n) PPU A12 -> |16 25| <- CPU D0 (nr) | (n) PPU A12 -> |16 25| <- CPU D0 (nr) | ||
(n) PPU A11 -> |17 24| -> /W6005 | (n) PPU A11 -> |17 24| -> /W6005 | ||
| Line 23: | Line 23: | ||
`--------' | `--------' | ||
† On one board, connected to a seemingly-needlessly-complicated [[7400]] circuit. See the [http://forums.nesdev.org/viewtopic.php?t=7106 thread on the forum]. | † On one board, connected to a seemingly-needlessly-complicated [[7400]] circuit. See the [http://forums.nesdev.org/viewtopic.php?t=7106 thread on the forum]. | ||
Sources: | Sources: | ||
* BootGod: https://forums.nesdev.org/viewtopic.php?p=69275#p69275 | * BootGod: https://forums.nesdev.org/viewtopic.php?p=69275#p69275 | ||
* Krzysiobal: https://forums.nesdev.org/viewtopic.php?t=19751 | * Krzysiobal: https://forums.nesdev.org/viewtopic.php?t=19751 | ||
Latest revision as of 17:12, 12 June 2021
NTDEC TC-112: 40-pin 0.6" PDIP. (Canonically iNES Mapper 193)
.---\/---.
(n) M2 -> |1 40| -- VCC
(nr) CPU D7 -> |2 39| -> PRG A16 (r)
(nr) CPU D6 -> |3 38| -> PRG A15 (r)
(nr) CPU D5 -> |4 37| -> PRG A14 (r)
(nr) CPU D4 -> |5 36| -> PRG A13 (r)
(nr) CPU D3 -> |6 35| -> PRG /CE (r)
(nr) CPU D2 -> |7 34| -> CHR A17 (r)
(nr) CPU D1 -> |8 33| -> CHR A16 (r)
(nr) CPU A1 -> |9 32| -> CHR A15 (r)
(nr) CPU A0 -> |10 31| -> CHR A14 (r)
(n) CPU R/W -> |11 30| -> CHR A13 (r)
(n) CPU /CE -> |12 29| -> CHR A12 (r)
(n) CPU A14 -> |13 28| -> CHR A11 (r)
(n) CPU A13 -> |14 27| -> CHR1 /CE (r) = (PPU /RD) or (PPU A13) or (CHR A17)
(n) PPU A13 -> |15 26| -> CHR2 /CE (r) = (PPU /RD) or (PPU A13) or (not CHR A17)
(n) PPU A12 -> |16 25| <- CPU D0 (nr)
(n) PPU A11 -> |17 24| -> /W6005
(nr)PPU A10 -> |18 23| -> /W6006
† PPU /RD -> |19 22| <- CPU A2 (nr)
GND -- |20 21| -> CIRAM A10 (n)
`--------'
† On one board, connected to a seemingly-needlessly-complicated 7400 circuit. See the thread on the forum.
Sources:
