3.2.6 Reset State Priorities

The Reset State Manager manages the following priorities between the different reset sources, given in descending order:

  • General Reset

  • Backup Reset

  • Watchdog Reset

  • Software Reset

  • User Reset

Particular cases are listed below:
  • When in User Reset:

    • A watchdog event is impossible because the Watchdog Timer is being reset

    • A Software Reset is impossible because the processor reset is being activated

  • When in Software Reset:

    • A watchdog event has priority over the current state

    • The NRST has no effect

  • When in Watchdog Reset:

    • The processor reset is active and so a Software Reset cannot be programmed

    • A User Reset cannot be entered