The Reset Controller is based on two POR cells, one on VDDIO and one on VDDCORE, and a Supply Monitor on VDDIO.
The Reset Controller returns the source of the last reset to the software. This may be a general reset, a wakeup reset, a software reset, a user reset or a watchdog reset.
The Reset Controller controls the internal resets of the system and the pin input/output. It can shape a reset signal for the external devices, simplifying the connection of a push-button on the NRST pin to implement a manual reset.
The configuration of the Reset Controller is saved as supplied on VDDIO.