SPRAD21I May 2022 – September 2025 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP , AM62A1-Q1 , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62D-Q1 , AM62P , AM62P-Q1
For proper operation, the recommendation is to connect all power supply pins (balls) with the supply voltages recommended in the Recommended Operating Conditions section of the processor-specific data sheet. Power supply pins that have specific connectivity requirements are listed in the Pin Connectivity Requirements section of the processor-specific data sheet.
Powering MCU domain and MAIN domain independently is not a supported option. The processor families does not support (implement) separate MCU and MAIN power supply domains. All power supply pins (rails) are required to be powered and are recommended to follow the supply sequence as defined in the processor-specific data sheet. The concept of MCU and MAIN applies to internal functions and processor domains.
Refer below section Supply Connection for Partial IO (Low Power) Mode Configuration of user's guide for VDD_CANUART supply connection.