USB3_P0_INT_ENA
p0_int_sta &= usb3_read(usb3, USB3_P0_INT_ENA);
usb3_set_bit(usb3, P0_INT_ALL_BITS, USB3_P0_INT_ENA);
usb3_write(usb3, 0, USB3_P0_INT_ENA);