XLCOM_STAT
WCASE(DCR_XLCOM_BASE, XLCOM_STAT);
RCASE(DCR_XLCOM_BASE, XLCOM_STAT);
stat = bus_space_read_4(sc->sc_iot, sc->sc_ioh, XLCOM_STAT);
stat = bus_space_read_4(sc->sc_iot, sc->sc_ioh, XLCOM_STAT);
stat = bus_space_read_4(sc->sc_iot, sc->sc_ioh, XLCOM_STAT);
stat = bus_space_read_4(sc->sc_iot, sc->sc_ioh, XLCOM_STAT);
while (! (bus_space_read_4(iot, ioh, XLCOM_STAT) & STAT_TX_EMPTY))
while (! (bus_space_read_4(t, h, XLCOM_STAT) & STAT_RX_DATA))
while (bus_space_read_4(t, h, XLCOM_STAT) & STAT_TX_FULL)