MMC1 pinout: Difference between revisions
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Comes in several varieties: 'MMC1', 'MMC1A', and 'MMC1B2' | Comes in several varieties: 'MMC1', 'MMC1A', and 'MMC1B2' | ||
<pre> | |||
.---\/---. | .---\/---. | ||
PRG A14 (r) <- |01 24| - +5V | PRG A14 (r) <- |01 24| - +5V | ||
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(s) - this pin is shared with the NES connector and ROM chips | (s) - this pin is shared with the NES connector and ROM chips | ||
(w) - this pin connects to the WRAM only | (w) - this pin connects to the WRAM only | ||
</pre> |
Revision as of 01:08, 23 June 2009
MMC1 Chip: (24 pin shrink-DIP)
Comes in several varieties: 'MMC1', 'MMC1A', and 'MMC1B2'
.---\/---. PRG A14 (r) <- |01 24| - +5V PRG A15 (r) <- |02 23| <- M2/Phi2/CPU Clk PRG A16 (r) <- |03 22| <- PRG A13 (s) PRG A17 (r) <- |04 21| <- PRG A14 (n) PRG /CE (r) <- |05 20| <- PRG /CE (n) WRAM CE (w) <- |06 19| <- PRG D7 (s) CHR A12 (r) <- |07 18| <- PRG D0 (s) CHR A13 (r) <- |08 17| <- PRG R/W CHR A14 (r) <- |09 16| -> CIRAM A10 (n) CHR A15 (r) <- |10 15| <- CHR A12 (n) CHR A16 (r) or WRAM /CE (w) <- |11 14| <- CHR A11 (s) GND - |12 13| <- CHR A10 (s) `--------' (r) - this pin connects to the ROM chips only (n) - this pin connects to the NES connector only (s) - this pin is shared with the NES connector and ROM chips (w) - this pin connects to the WRAM only