| Signal Name | Type | Description |
|---|---|---|
| PAD[0] | Digital I/O | SDA |
| PAD[1] | Digital I/O | SCL |
| PAD[2] | Digital I/O | SDA_OUT (4-wire operation) |
| PAD[3] | Digital I/O | SCL_OUT (4-wire operation) |
One signal can be mapped on several pins.
The following table lists the SERCOM pins which support I2C:
| Pin Name | SERCOM0 I2C Pad Name | SERCOM1 I2C Pad Name |
|---|---|---|
| PA16 | SERCOM0/PAD[0] | SERCOM1/PAD[0] |
| PA17 | SERCOM0/PAD[1] | SERCOM1/PAD[1] |
| PA22 | SERCOM0/PAD[0] | N/A |
| PA23 | SERCOM0/PAD[1] | N/A |