23.6.5.4 Brown-Out Detector (BOD12)

The BOD12 is calibrated in production and its calibration configuration is stored in the NVM User Row. This configuration must not be changed to assure the correct behavior of the BOD12. The BOD12 generates a reset when VDDCORE crosses below the preset brown-out level. The BODCORE is always disabled in standby sleep mode.

References:

NVM User Row Mapping