ANXDP_SYS_CTL_3
sc3 = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ANXDP_SYS_CTL_3);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, ANXDP_SYS_CTL_3, sc3);
sc3 = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ANXDP_SYS_CTL_3);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, ANXDP_SYS_CTL_3, sc3);