Reset Flag Register

The Reset flags can be cleared by writing a ‘1’ to the respective flag. All flags will be cleared by a Power-on Reset (POR), except for the Power-on Reset (PORF) flag. All flags will be cleared by a Brown-out Reset (BOR), except for the Power-on Reset (PORF) and Brown-out Reset (BORF) flags.

Name:
RSTFR
Offset:
0x00
Reset:
0xXX
Access:
-
Bit76543210
UPDIRFSWRFWDRFEXTRFBORFPORF
AccessR/WR/WR/WR/WR/WR/W
Resetxxxxxx

Bit 5 – UPDIRF: UPDI Reset Flag

UPDI Reset Flag

This bit is set to ‘1’ if either a UPDI Reset has occurred or a reset caused by an HV pulse has occurred.

Bit 4 – SWRF: Software Reset Flag

Software Reset Flag

This bit is set to ‘1’ if a Software Reset has occurred.

Bit 3 – WDRF: Watchdog Reset Flag

Watchdog Reset Flag

This bit is set to ‘1’ if a Watchdog Reset has occurred.

Bit 2 – EXTRF: External Reset Flag

External Reset Flag

This bit is set to ‘1’ if an External Reset has occurred.

Bit 1 – BORF: Brown-out Reset Flag

Brown-out Reset Flag

This bit is set to ‘1’ if a Brown-out Reset has occurred.

Bit 0 – PORF: Power-on Reset Flag

Power-on Reset Flag

This bit is set to ‘1’ if a Power-on Reset has occurred.