EMU_A2_DATA
bus_space_write_4(sc->sc_iot, sc->sc_ioh, EMU_A2_DATA,
bus_space_write_4(sc->sc_iot, sc->sc_ioh, EMU_A2_DATA, 0xff000000);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, EMU_A2_DATA, 0xff000000);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, EMU_A2_DATA,
bus_space_write_4(sc->sc_iot, sc->sc_ioh, EMU_A2_DATA, EMU_A2_SRCMULTI_ENABLE_INPUT);