15.6.3 SleepWalking
SleepWalking is the capability for a device to temporarily wake-up clocks for the peripheral to perform a task without waking-up the CPU in Standby mode. At the end of the sleepwalking task, the device can either be awakened by an interrupt (from a peripheral involved in SleepWalking) or enter into Standby mode again.
In this device, SleepWalking is supported only on GCLK clocks by using the on-demand clock principle of the clock sources. For additional information, refer to the On-demand, Clock Requests.