Datasheet

16.8.14 Reset Cause
Name: RCAUSE
Offset: 0x38
Reset: 0x01
Property: -
Bit 7 6 5 4 3 2 1 0
SYST WDT EXT BOD33 BOD12 POR
Access
R R R R R R
Reset 0 0 0 0 0 1
Bit 6 – SYST System Reset Request
This bit is set if a system reset request has been performed. Refer to the Cortex processor
documentation for more details.
Bit 5 – WDT Watchdog Reset
This flag is set if a Watchdog Timer reset occurs.
Bit 4 – EXT External Reset
This flag is set if an external reset occurs.
Bit 2 – BOD33 Brown Out 33 Detector Reset
This flag is set if a BOD33 reset occurs.
Bit 1 – BOD12 Brown Out 12 Detector Reset
This flag is set if a BOD12 reset occurs.
Bit 0 – POR Power On Reset
This flag is set if a POR occurs.
SAM D21 Family
PM – Power Manager
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 171