| Pin Number |
Pin Name |
Description |
|---|---|---|
| 1 | 3.3V | +3.3 volt power supply |
| 2 | GND | Ground |
| 3 | TxD | Transmit Data for Async Serial bus OUT |
| 4 | RxD | Receive Data for Async Serial bus IN |
| 5 | SCL | Clock for I2C bus OUT |
| 6 | SDA | Bidirectional Serial Data for I2C bus |
| 7 | MISO | Serial Data In for SPI bus IN |
| 8 | MOSI | Serial Data Out for SPI bus |
| 9 | SCK | Clock for SPI bus OUT |
| 10 | SSEL | Slave Select for SPI bus OUT |
Direction is relative to host board.
Pins 3,4,7,8,9 conforms to Push-Pull logic, Pins 5,6 Open-Drain logic. All pins are conform to 3.3 volt digital logic
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