Cartridge
Pins are numbered left to right, cartridge label up.
| Pin | Function | Pin | Function | Pin | Function | Pin | Function |
|---|---|---|---|---|---|---|---|
| 01 | GND | 13 | Address Bit 4 | 25 | +3.3V | 37 | Data Bit 11 |
| 02 | Address Bit 15 | 14 | Data Bit 15 | 26 | Address Bit 0 | 38 | Data Bit 12 |
| 03 | Address Bit 10 | 15 | Data Bit 14 | 27 | Address Bit 1 | 39 | Data Bit 13 |
| 04 | Address Bit 11 | 16 | Data Bit 7 | 28 | Address Bit 2 | 40 | RESET |
| 05 | Address Bit 9 | 17 | Data Bit 6 | 29 | Address Bit 3 | 41 | MBC |
| 06 | Address Bit 8 | 18 | Data Bit 5 | 30 | Address Bit 19 | 42 | Memory/IO |
| 07 | Address Bit 13 | 19 | Data Bit 4 | 31 | Address Bit 18 | 43 | READ |
| 08 | Address Bit 14 | 20 | Data Bit 3 | 32 | Address Bit 17 | 44 | WRITE |
| 09 | Address Bit 12 | 21 | Data Bit 2 | 33 | Address Bit 16 | 45 | CHIP SELECT |
| 10 | Address Bit 7 | 22 | Data Bit 1 | 34 | Data Bit 8 | 46 | IRQ |
| 11 | Address Bit 6 | 23 | Data Bit 0 | 35 | Data Bit 9 | 47 | CLOCK |
| 12 | Address Bit 5 | 24 | +3.3V | 36 | Data Bit 10 | 48 | GND |
Extension Port Connector
(Female 8-pin port on peripheral)
MISO_ _MOSI
\ /
+3V_ \ / _GND
______\ __\ __ /__ /______
| 04__03__02__01 |
| __|"" "" "" ""|__ |
| |__ __| |
'. |..__..__..__..| .'
\____05__06__07__08____/
_/ / \ \_
BCLK / \ /HDPN
_/ \_
LRCK SDAT
| Pin | Group | Description |
|---|---|---|
| 01 (GND) | Power | Ground |
| 02 (MOSI) | UART | Console -> Accessory |
| 03 (MISO) | Accessory -> Console | |
| 04 (+3V) | Power | 3.3V? |
| 05 (BCLK) | I2S | Bit clock |
| 06 (LRCK) | Channel clock | |
| 07 (SDAT) | Bit data | |
| 08 (/HDPN) | Headphone detect |