MUSB2_REG_INTUSB
intusb = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MUSB2_REG_INTUSB);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, MUSB2_REG_INTUSB, intusb);
REGDECL(MUSB2_REG_INTUSB, 0x004c),
WR1(sc, MUSB2_REG_INTUSB, intusb);
intusb = RD1(sc, MUSB2_REG_INTUSB);
ctrl_status |= UREAD1(sc, MUSB2_REG_INTUSB);