SPRAD21E May 2023 – February 2024 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62P , AM62P-Q1
USB0 interface supports boot. When the USB0 is configured for DFU boot mode, 3.3 V supply (permanent or switched) is not recommended to be connected to the USB0_VBUS pin. No permanent supply (equivalent to the divider value) is allowed to be connected to the USB0_VBUS pin.
A 5 V supply from the host (switched) connected through the USB connector is recommended to be connected to the processor USB0_VBUS pin through the resistor voltage divider as per the device-specific data sheet recommendations. The Zener diode could be deleted and the two resistors can be combined to a 20 kΩ resistor for the USB VBUS Detect Voltage Divider / Clamp Circuit if the custom board design will never apply a VBUS potential greater than 5.5 V and the supply is on-board.