ETIME_H_REG_W
timeh = bus_space_read_2(iot, ioh, ETIME_H_REG_W);
bus_space_write_2(iot, ioh, ETIME_H_REG_W, (timeh >> 16) & 0xffff);
timeh = bus_space_read_2(sc->sc_iot, sc->sc_ioh, ETIME_H_REG_W);