SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The internal USB2PHY1 (HS) transceiver must be powered and configured upon startup. No action is expected from the device ROM code for its configuration.
Figure 34-12 shows the USB initialization procedure.
The ROM code does not consider the USB PHYs charger detection circuitry status.
The ROM code assumes that VBUS is always present.