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.

All SERCOM I²C pins support the Fast Mode frequency. The High Speed frequency is only supported by the following pins:

Table 32-1. SERCOM Pins Supporting I²C High Speed Frequency
Package	Pins Supporting I²C
32-pin	PA08, PA09, PA16, PA17, PA22, PA23
48-pin	PA08, PA09, PA12, PA13, PA16, PA17, PA22, PA23

Refer to the Pinout chapter for additional information.

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