SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The USB3 PHY interface can be connected to either SerDes0 Lane 3 or SerDes0 Lane 1 as required by the application. The CTRL_MMR0 USB0_CTRL.serdes_sel bit determines the SerDes0 lane usage. (This defaults to a value of 1'b0 which selects SerDes0 Ln3.) The appropriate SerDes lane interface (IP3) must also be correctly configured. (e.g. CTRL_MMR0 SERDES0_LN1_CTRL.lane_func_sel = 2'b10 if Lane 1 is used or CTRL_MMR0 SERDES0_LN3_CTRL.lane_func_sel = 2'b10 if Lane 3 is used.)