34.4 Signal Description
| Signal Name | Type | Description |
|---|---|---|
| PAD[0] | Digital I/O | SDA |
| PAD[1] | Digital I/O | SCL |
CAUTION: I/Os for SERCOM peripherals are grouped into I/O sets.
For these peripherals, it is mandatory to use I/Os that belong to the same I/O set. The timings are not guaranteed when I/Os from different I/O sets are mixed. Refer to the Pinout and Packaging chapter to get IOSET definitions.
Important: I²C is not supported on
all SERCOM pins.
The following table lists the SERCOM pins which support I2C:
| Package Pin Count | Supply | I/O pins with I²C Support |
|---|---|---|
| 128 | VDD | PA08, PA09, PA12, PA13, PA16, PA17, PA22, PA23, PD08, PD09 |
| 100 | VDD | PA08, PA09, PA12, PA13, PA16, PA17, PA22, PA23 |
| 64 | VDD | PA08, PA09, PA12, PA13, PA16, PA17, PA22, PA23 |