Hi Thinh The workaround solution provided by your company for this issue is as follows: Workaround：if the phy support direct P3 to P2 transition，program GUSB3PIPECTL.P3P2Tranok=1 As the databook mentions: This bit is used only for some non-Synopsys PHYs that cannot do LFPS in P3. This bit is used by third-party SS PHY. It must be set to '0' for Synopsys PHY. For Synopsys PHY, if this bit is set to "1", will it cause unknown problems? Please help confirm this, thank you! Thanks, Jos Wang
