| J1 Pin | Function | Analog | Digital In | Freq In | Period In | Count In | Digital Out | Open Collector | 5V Tolerant | Additional Function |
| SETPIN:
—> |
1 | 2 | 3 | 4 | 5 | 8 | 9 | |||
| 1 | Reg 3.3V | |||||||||
| 2 | Video1 | |||||||||
| 3 | Video2 | |||||||||
| 4 | NC | |||||||||
| 5 | VSYNC | |||||||||
| 6 | KBDDATA | |||||||||
| 7 | +5V | |||||||||
| 8 | KBDCLK | |||||||||
| 9 | GROUND | |||||||||
| 10 | HSYNC | |||||||||
| 11 | I/O 1 | Analog In | Digital In | Digital Out | ||||||
| 12 | I/O 2 | Analog In | Digital In | Digital Out | ||||||
| 13 | I/O 3 | Analog In | Digital In | Digital Out | ||||||
| 14 | I/O 4 | Analog In | Digital In | Digital Out | ||||||
| 15 | I/O 5 | Analog In | Digital In | Digital Out | ||||||
| 16 | I/O 6 | Analog In | Digital In | Digital Out | ||||||
| 17 | I/O 7 | Analog In | Digital In | Digital Out | ||||||
| 18 | I/O 8 | Analog In | Digital In | Digital Out | ||||||
| 19 | I/O 9 | Analog In | Digital In | Digital Out | ||||||
| 20 | I/O 10 | Analog In | Digital In | Digital Out | ||||||
| 21 | I/O 11 | Digital In | Freq In | Period In | Count In | Digital Out | Open Collector | 5V Tolerant | ||
| 22 | I/O 12 | Digital In | Freq In | Period In | Count In | Digital Out | Open Collector | 5V Tolerant | ||
| 23 | I/O 13 | Digital In | Freq In | Period In | Count In | Digital Out | Open Collector | 5V Tolerant | ||
| 24 | I/O 14 | Digital In | Freq In | Period In | Count In | Digital Out | Open Collector | 5V Tolerant | ||
| 25 | I/O 15 | Digital In | Digital Out | Open Collector | 5V Tolerant | Serial 1 Receive | ||||
| 26 | I/O 16 | Digital In | Digital Out | Open Collector | 5V Tolerant | Serial 1 Transmit | ||||
| 27 | I/O 17 | Digital In | Digital Out | Open Collector | 5V Tolerant | Serial 1 RTS | ||||
| 28 | I/O 18 | Digital In | Digital Out | Open Collector | 5V Tolerant | Serial 1 CTS | ||||
| 29 | I/O 19 | Digital In | Digital Out | Open Collector | 5V Tolerant | Serial 2 Receive | ||||
| 30 | I/O 20 | Digital In | Digital Out | Open Collector | 5V Tolerant | Serial 2 Transmit |
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