Datasheet

...........continued
Values Description
0x3 Generic clock generator 3
0x4 Generic clock generator 4
0x5 Generic clock generator 5
0x6 Generic clock generator 6
0x7 Generic clock generator 7
0x8 Generic clock generator 8
0x9-0xF Reserved
A power reset will reset the GENDIV register for all IDs, including the generic clock generator used by the
RTC. If a generic clock generator ID other than generic clock generator 0 is not a source of a ‚“locked”
generic clock or a source of the RTC generic clock, a user reset will reset the GENDIV for this ID.
After a power reset, the reset value of the GENDIV register is as shown in the next table.
GCLK Generator ID Reset Value after a Power Reset
0x00 0x00000000
0x01 0x00000001
0x02 0x00000002
0x03 0x00000003
0x04 0x00000004
0x05 0x00000005
0x06 0x00000006
0x07 0x00000007
0x08 0x00000008
After a user reset, the reset value of the GENDIV register is as shown in next table.
GCLK
Generator ID
Reset Value after a User Reset
0x00 0x00000000
0x01 0x00000001 if the generator is not used by the RTC and not a source of a 'locked'
generic clock
No change if the generator is used by the RTC or used by a GCLK with a WRTLOCK as
one
0x02 0x00000002 if the generator is not used by the RTC and not a source of a 'locked'
generic clock
No change if the generator is used by the RTC or used by a GCLK with a WRTLOCK as
one
SAM D21 Family
GCLK - Generic Clock Controller
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 137