PIOC_CM_DATA_REG
*id = bus_space_read_1(iot, ioh, PIOC_CM_DATA_REG);
*revision = bus_space_read_1(iot, ioh, PIOC_CM_DATA_REG);
sc->sc_config[loop] = bus_space_read_1(iot, ioh, PIOC_CM_DATA_REG);