Operation in Sleep Modes

The I²C module can operate in all sleep modes by setting the run_in_standby Boolean in the i2c_master_config or i2c_slave_config struct. The operation in slave and master mode is shown in Table 1.

Table 1. I²C Standby Operations
Run in standby	Slave	Master
false	Disabled, all reception is dropped	GCLK disabled when master is idle
true	Wake on address match when enabled	GCLK enabled while in sleep modes