PH_MASK
sc->sc_phase = bus_space_read_1(iot, ioh, PSNS) & PH_MASK;
sc->sc_phase = bus_space_read_1(iot, ioh, SCSISIG) & PH_MASK;
sc->HCS_Phase = sc->HCS_JSStatus0 & PH_MASK;
sc->HCS_Phase = sc->HCS_JSStatus0 & PH_MASK;