SPRZ398K November 2012 – September 2024 DRA745 , DRA746 , DRA750 , DRA756
Unexpected USB Link State Value upon U3 Exit by USB3.0 Link
Low
When USB3.0 link is exiting U3 state (as result of link recovery request USB_DCTL[8:5] ULSTCHNGREQ=0x8), the USB_DSTS[21:18] USBLNKST field is updated to 0xF (Reset/Resume State), which state is not a valid LTSSM state in this case.
Ignore the Reset/Resume State value (USB_DSTS[21:18] USBLNKST=0xF).
SR 2.0, 1.1, 1.0
TDA2x: 2.0, 1.1, 1.0
DRA75x, DRA74x: 2.0, 1.1, 1.0
AM572x: 2.0, 1.1