RA_PIO_72_95_INT
sc->sc_intr_status72_95 |= gp_read(sc, RA_PIO_72_95_INT);
gp_write(sc, RA_PIO_72_95_INT, sc->sc_intr_status72_95);
gp_write(sc, RA_PIO_72_95_INT, 0xffffff);
gp_write(sc, RA_PIO_72_95_INT, 0xffffff);