Power-On Reset and Brown-Out Detector

The SAM C20 embeds three features to monitor, warn and/or reset the device:

• POR: Power-on reset on VDDIN and VDDIO
• BODVDD: Brown-out detector on VDDIN
• BODCORE: 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 BODCORE.