usb2.0 phy
..........\transcript
..........\u2phy_abp_if.v
..........\u2phy_ctrl.v
..........\u2phy_infifo.v
..........\u2phy_outfifo.v
..........\u2phy_psc.v
..........\u2phy_spc.v
..........\u2phy_top.v