Ports and Connectors
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Front Panel
Joystick Ports
The joystick ports, from left to right, are numbered 1,2,3,4.
- Ports 1 and 2 may be electrically configured as NES style ports, or as TTL ports.
- Ports 2 and 4 are C64 style ports (including analog inputs).
| DB9 | 1&2 NES | 1&2 TTL | 3&4 ATARI/C64 |
| 1 | ignored | UP | UP |
| 2 | ignored | DOWN | DOWN |
| 3 | ignored | LEFT | LEFT |
| 4 | ignored | RIGHT | RIGHT |
| 5 | LATCH | Button 1 | POT-Y |
| 6 | DATA | Button 0 | BUTTON |
| 7 | +5 | +5 | +5 |
| 8 | GND | GND | GND |
| 9 | CLK | Button 2 | POT-X |
