ADWRITE
ADWRITE(sc, AD1848_STATUS, 0);
ADWRITE(sc, AD1848_STATUS, 0);
ADWRITE(sc, AD1848_IADDR, (reg & 0xff) | sc->MCE_bit);
ADWRITE(sc, AD1848_IADDR, (reg & 0xff) | sc->MCE_bit);
ADWRITE(sc, AD1848_IDATA, data & 0xff);
ADWRITE(sc, AD1848_IADDR, sc->MCE_bit);
ADWRITE(sc, AD1848_IADDR, SP_TEST_AND_INIT);