32.4 Signal Description
| 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.
Not all the pins are I2C pins.
