List of Non-Write Protected Registers

Look in device datasheet peripheral's subsection "Register Access Protection" to see which is actually available for your device.

Module	Non-write protected register
AC	INTFLAG
	STATUSA
	STATUSB
	STATUSC

ADC	INTFLAG
	STATUS
	RESULT

EVSYS	INTFLAG
	CHSTATUS

NVMCTRL	INTFLAG
	STATUS

PM	INTFLAG

PORT	N/A

RTC	INTFLAG
	READREQ
	STATUS

SYSCTRL	INTFLAG

SERCOM	INTFALG
	STATUS
	DATA

TC	INTFLAG
	STATUS

WDT	INTFLAG
	STATUS
	(CLEAR)