7.2.2 Power-on Reset (POR) and Brown-out Reset (BOR)

The PIC32CK SG/GC embeds three features to monitor, warn, and reset the device:
  • A Power-on Reset on VDD (AVDD):
    • Monitoring is always activated, including during device startup or during any sleep modes
    • Having VDD below a fixed threshold voltage will reset the whole device
    Note: Refer to the Electrical Characteristics for the rising and falling threshold voltages.
  • A Brown-out Reset (VDDBOR) on VDD (VDDREG, AVDD, VDDIO, VDDUSB3V):
    • The VDDBOR monitors VDD continuously
    • dcBOR in (continuous mode) or periodically (sampled mode) with a programmable sample frequency in Backup mode
    • A programmable threshold loaded from the USER CFG page is used to trigger an interrupt and/or reset the whole device
  • PORCORE a Brown-out Detector on VDDCORE
    Note: PORCORE is calibrated in production and its calibration parameters are stored in the USER CFG page. This data must not be changed to ensure correct device behavior.