Data Sheet

189
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
z Bits 5:4 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z Bit 3 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write this bit to zero
when this register is written. This bit will always return zero when read.
z Bit 2 – EN32K: 32kHz Output Enable
0: The 32kHz output is disabled.
1: The 32kHz output is enabled.
z Bit 1 – ENABLE: Oscillator Enable
0: The oscillator is disabled.
1: The oscillator is enabled.
z Bit 0 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write this bit to zero
when this register is written. This bit will always return zero when read.