33.6.5 Sleep Mode Operation

The behavior in Sleep mode is depending on the Host/Client configuration and the Run In Standby bit in the Control A register (CTRLA.RUNSTDBY):

  • Host operation, CTRLA.RUNSTDBY = 1: The peripheral clock GCLK_SERCOMx_CORE will continue to run in Idle mode and in Standby Sleep mode. Any interrupt can wake-up the device.
  • Host operation, CTRLA.RUNSTDBY = 0: GLK_SERCOMx_CORE will be disabled after the ongoing transaction is finished. Any interrupt can wake up the device.
  • Client operation, CTRLA.RUNSTDBY = 1: The Receive Complete interrupt can wake-up the device.
  • Client operation, CTRLA.RUNSTDBY = 0: All reception will be dropped, including the ongoing transaction.