Sega Genesis Controller
Pinout
9 PIN DSUB ??
| Pin | Name (Select=GND) | Name (Select=+5V) |
|---|---|---|
| 1 | Up | Up |
| 2 | Down | Down |
| 3 | Gnd / Left | |
| 4 | Gnd / Right | |
| 5 | +5VDC | +5VDC |
| 6 | Button A | Button B |
| 7 | Select | Select |
| 8 | Ground | Ground |
| 9 | Start | Button C |
The chip inside the controller is a 74HC157. This is a high-speed cmos quad 2-line to 1-line multiplexer. The console can with help of the Select-pin choose from two functions on each input.