14.2 Reset Sources

The device has the following sources of reset:

  • Power-on Reset. The MCU is reset when the supply voltage is less than the Power-on Reset threshold (VPOT).
  • External Reset. The MCU is reset when a low level is present on the RESET pin for longer than the minimum pulse length.
  • Watchdog System Reset. The MCU is reset when the Watchdog Timer period expires and the Watchdog System Reset mode is enabled.
  • Brown-out Reset. The MCU is reset when the supply voltage VCC is less than the Brown-out Reset threshold (VBOT) and the Brown-out Detector is enabled.
Figure 14-1. Reset Logic