Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Data Sheet

92

Atmel | SMART SAM D20 [DATASHEET]

Atmel-42129K–SAM-D20_datasheet–06/2014

A power reset will reset the CLKCTRL register for all IDs, including the RTC. If the WRTLOCK bit of the corresponding ID 
is zero and the ID is not the RTC, a user reset will reset the CLKCTRL register for this ID.

After a power reset, the reset value of the CLKCTRL register versus module instance is as shown in 

.

After a user reset, the reset value of the CLKCTRL register versus module instance is as shown in

 

0x0F

SERCOM2_CORE

0x10

SERCOM3_CORE

0x11

SERCOM4_CORE

0x12

SERCOM5_CORE

0x13

TC0,TC1

0x14

TC2,TC3

0x15

TC4,TC5

0x16

TC6,TC7

0x17

ADC

0x18

AC_DIG

0x19

AC_ANA

0x1A

DAC

0x1B

PTC

0x1C-0x3F

Reserved

RTC

0x00

0x00

0x00

WDT

0x02

0x01 if WDT Enable bit in NVM
User Row written to one
0x00 if WDT Enable bit in NVM
User Row written to zero

0x01 if WDT Always-On bit in
NVM User Row written to one
0x00 if WDT Always-On bit in
NVM User Row written to zero

Others

0x00

0x00

0x00