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' | ||
.---\/---. | |||
PRG A14 (r) - |01 24| - +5V | PRG A14 (r) <- |01 24| - +5V | ||
PRG A15 (r) - |02 23| - M2 | PRG A15 (r) <- |02 23| <- M2/Phi2/CPU Clk | ||
PRG A16 (r) - |03 22| - PRG A13 (s) | PRG A16 (r) <- |03 22| <- PRG A13 (s) | ||
PRG A17 (r) - |04 21| - PRG A14 (n) | PRG A17 (r) <- |04 21| <- PRG A14 (n) | ||
PRG /CE (r) - |05 20| - PRG /CE (n) | PRG /CE (r) <- |05 20| <- PRG /CE (n) | ||
WRAM CE (w) - |06 19| - PRG D7 (s) | WRAM CE (w) <- |06 19| <- PRG D7 (s) | ||
CHR A12 (r) - |07 18| - PRG D0 (s) | CHR A12 (r) <- |07 18| <- PRG D0 (s) | ||
CHR A13 (r) - |08 17| - PRG R/W | CHR A13 (r) <- |08 17| <- PRG R/W | ||
CHR A14 (r) - |09 16| - CIRAM A10 (n) | CHR A14 (r) <- |09 16| -> CIRAM A10 (n) | ||
CHR A15 (r) - |10 15| - CHR A12 (n) | CHR A15 (r) <- |10 15| <- CHR A12 (n) | ||
CHR A16 (r) or WRAM /CE (w) - |11 14| - CHR A11 (s) | CHR A16 (r) or WRAM /CE (w) <- |11 14| <- CHR A11 (s) | ||
GND - |12 13| - CHR A10 (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 | |||
Revision as of 01:06, 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
