34.4 Signal Description

Table 34-1. SERCOM USART Signals
Signal Name	Type	Description
PAD[3:0]	Digital I/O	General SERCOM pins

CAUTION: I/Os for SERCOM peripherals are grouped into IO sets, listed in their ‘IOSET’ column in the pinout tables. For these peripherals, it is mandatory to use I/Os that belong to the same IO set. The timings are not guaranteed when IOs from different IO sets are mixed. Refer to the Pinout and Packaging chapter to get IOSET definitions.

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