Reset Cause

When a Reset occurs, the bit corresponding to the Reset source is set to '1' and all other bits are written to '0'.
Name:
RCAUSE
Offset:
0x00 [ID-0000052b]
Reset:
Latest Reset Source
Access:
–
Bit76543210
BACKUPSYSTWDTEXTBOD33BOD12POR
AccessRRRRRRR
Resetxxxxxxx

Bit 7 – BACKUP: Backup Reset

Backup Reset

This bit is set if a Backup Reset has occurred. Refer to BKUPEXIT register to identify the source of the Backup Reset.

Bit 6 – SYST: System Reset Request

System Reset Request

This bit is set if a System Reset Request has occurred. Refer to the Cortex processor documentation for more details.

Bit 5 – WDT: Watchdog Reset

Watchdog Reset

This bit is set if a Watchdog Timer Reset has occurred.

Bit 4 – EXT: External Reset

External Reset

This bit is set if an external Reset has occurred.

Bit 2 – BOD33: Brown Out 33 Detector Reset

Brown Out 33 Detector Reset

This bit is set if a BOD33 Reset has occurred.

Bit 1 – BOD12: Brown Out 12 Detector Reset

Brown Out 12 Detector Reset

This bit is set if a BOD12 Reset has occurred.

Bit 0 – POR: Power On Reset

Power On Reset

This bit is set if a POR has occurred.