If the device is configured in Single-Supply mode, the VDDIO2 voltage must also rise closely to VDD. In Dual-Supply mode, the VDDIO2 voltage can ramp up or down at any time without affecting the proper operation. Refer to the MVIO - Multi-Voltage I/O section for further information.

The Power-On Reset (POR) and the Brown-out Detector (BOD) monitor VDD and will keep the system in Reset if the voltage level is below the respective voltage thresholds. Refer to the RSTCTRL - Reset Controller and BOD - Brown-out Detector sections for further information.

Refer to the Electrical Characteristics section for further information on voltage thresholds.