10.3.1 Signal Description

Table 10-1. GCLK External Signal Description
Signal Name	Type	Description
GCLK_IO[3:0]⁽¹⁾⁽²⁾	Digital I/O	Clock source for Generators when input Generic Clock signal when output

Note:

One signal can be mapped to several pins.
The number of I/O signals connected to GCLK for this device is four.

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