SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
Figure 24-149 shows an external ULPI PHY IC is used instead of the on-chip UTMI PHY (USB2PHY). Seen from outside the system, both integrations are functionally equivalent. Internally, the functions of the ID and VBUS are taken over by the ULPI PHY. However, power on VBUS can be supplied by an VBUS switch with more power than the ULPI PHY is capable of.