14.5.1 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 |
| Property: | - |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| UPDIRF | SWRF | WDRF | EXTRF | BORF | PORF | ||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
| Reset | x | x | x | x | x | x |
Bit 5 – UPDIRF 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
This bit is set to ‘1’ if a Software Reset has
occurred.
Bit 3 – WDRF Watchdog Reset Flag
This bit is set to ‘1’ if a Watchdog Reset has
occurred.
Bit 2 – EXTRF External Reset Flag
This bit is set to ‘1’ if an External Reset has
occurred.
Bit 1 – BORF Brown-out Reset Flag
This bit is set to ‘1’ if a Brown-out Reset has
occurred.
Bit 0 – PORF Power-on Reset Flag
This bit is set to ‘1’ if a Power-on Reset has
occurred.