65 lines
2.2 KiB
Plaintext
65 lines
2.2 KiB
Plaintext
(r) this line goes to the ROM only.
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(s) this line is Shared between the ROM, MMC/chip, and Nintendo
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(n) this line connects to the NES cart edge only, and not the ROM
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(w) this line connects to the WRAM only and nowhere else
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MMC6 Chip: (64 pin QFP) [Made by Kevin Horton (khorton@iquest.net)]
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----------
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There is one known flavour: 'MMC6B' I suspect there may be an 'A' rev. also.
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48 33
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.---------.
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49-| |-32
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| MMC6B |
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64-| |-17
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\---------'
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1 16
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Pin# Function Pin# Function
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---- -------- ---- --------
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1 - PRG A13 (n) 33 - R/W
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2 - M2 34 - PRG D2 (s)
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3 - GND 35 - PRG D3 (s)
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4 - GND 36 - PRG D1 (s)
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5 - GND 37 - GND
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6 - NC 38 - +batt
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7 - GND 39 - PRG D4 (s)
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8 - +5V 40 - PRG D0 (s)
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9 - +5V 41 - PRG D5 (s)
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10 - +batt 42 - PRG A0 (s)
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11 - GND 43 - PRG D6 (s)
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12 - +5V 44 - PRG A1 (s)
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13 - threshold 45 - PRG D7 (s)
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14 - CHR A10 (n) 46 - PRG A2 (s)
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15 - CHR A11 (n) 47 - PRG /CE (r)
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16 - NC 48 - PRG A3 (s)
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17 - CHR A10 (r) 49 - PRG A4 (s)
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18 - CHR A16 (r) 50 - PRG A16 (r)
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19 - CHR A11 (r) 51 - PRG A5 (s)
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20 - CHR A12 (n) 52 - PRG A6 (s)
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21 - CHR A13 (r) 53 - PRG A9 (s)
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22 - CHR A12 (r) 54 - PRG A7 (s)
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23 - CHR A14 (r) 55 - PRG A8 (s)
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24 - GND 56 - +batt
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25 - +batt 57 - GND
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26 - CHR A18?(r) 58 - PRG A12 (s)
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27 - CIRAM A10 (n) 59 - PRG A13 (r)
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28 - CHR /RD (s) 60 - PRG A15 (r)
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29 - CHR /CE (s) 61 - PRG A14 (r)
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30 - CHR A17 (r) 62 - PRG A18?(r)
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31 - /IRQ 63 - PRG A14 (n)
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32 - PRG /CE (n) 64 - PRG A17 (r)
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Notes: A10 & A11 do not go to this chip.
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Threshold: Tied to a resistor divider between +5V and GND;
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resistor to +5V is 180 ohms, resistor to ground is 470 ohms.
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