Datasheet

• BOD33: Brown-Out Detector on VDDANA

• BOD12: Voltage Regulator Internal Brown-Out Detector on VDDCORE. The Voltage Regulator

Internal BOD is calibrated in production and its calibration configuration is stored in the NVM User

Row. This configuration should not be changed if the user row is written to assure the correct

behavior of the BOD12.

8.4.1 Power-On Reset on VDDANA

POR monitors VDDANA. It is always activated and monitors voltage at startup and also during all the

sleep modes. If VDDANA goes below the threshold voltage, the entire chip is reset.

8.4.2 Brown-Out Detector on VDDANA

BOD33 monitors VDDANA. Refer to SYSCTRL – System Controller for details.