U14_SINT
if (bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP)
if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
uhastat = bus_space_read_1(iot, ioh, U14_SINT);
bus_space_write_1(iot, ioh, U14_SINT, U14_ICM_ACK);
if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)