## Linux PSX interface

Controller | Parallel Port
--- | ---
Pad 1 | Pad 2 | Pad 3 | Pad 4 | Pad 5
1 (Dat) | 10 | 11 | 12 | 13 | 15
2 (Cmd) | 2
3 (+7v) | +7.6v
4 (Gnd) | 18
5 (+3v) | +3.5v
6 (Sel) | 3
7 (Clk) | 4
8 | -
9 (Ack) | -

### Notes

- The pin numbering for the PSX connector presented here is reversed from the numbering in the linux joystick-parport.txt document.
- The original linux interface does not include +7v required for force feedback operation. The interface wil function properly without the +7v supply but no force feedback will be possible.
- See the Powering PSX pads page for details on how to provide the +3.5v and +7.6v required by the PSX pads.
- This interface is the same as the PSX interface for SNESkey
- General notes about interface construction
- This interface supports configurable timing parameters - see Changing timing parameters on how to change these values and Playstation timing parameters for their meanings.
- PPJoy has a debug mode for playstation interfaces. See Setting PPJoy global options for a description of this feature and how to active it.

### Credits

The original diagram and information for this interface can be found at http://www.charmed.com/support/kernel/docs/joystick-parport.txt.