The POR initiates a complete initialization of the application settings and device configuration information. This class of reset may be initiated either by the PSS, the PCM, the RSTn pin, the Clock System upon DCO external resistor short-circuit fault, or the device emulation logic (through the debugger). From an application perspective, all sources of POR return the device to the same state of initialization.
Depending on the source of the reset, the device may exhibit different wake-up latencies from the POR. This implementation enables optimization of the reset recovery time.