Data Sheet

94
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
z All generic clocks disabled except:
z the WDT generic clock using the generator 2 as source
On a user reset the GCLK starts to their initial state, except for:
z generic clocks that are write-locked (WRTLOCK is written to one prior to reset or the WDT generic clock if the
WDT Always-On at power on bit set in the NVM User Row)
z The generic clock dedicated to the RTC if the RTC generic clock is enabled
On any reset the clock sources are reset to their initial state except the 32KHz clock sources which are reset only by a
power reset.