NES Controller port
From HwB
Available at Nintendo NES.
Pinout
__ | \ | 1 \ | \ | 2 5 | | | | 3 6 | | | | 4 7 | +-----+
1 | ground |
2 | /C1R (/C2R for second player) |
3 | C.0 |
4 | C1.0 (C2.0) |
5 | +5VDC. |
6 | C1.3 (C2.3) |
7 | C1.4 (C2.4) |
Note; See NES Expansion port for more info.