CS4281_DCR1
BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK);
BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK);
BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) & ~DCRn_MSK);
DPRINTF(("DCR1=0x%08x\n", BA0READ4(sc, CS4281_DCR1)));
BA0WRITE4(sc, CS4281_DCR1, dat32);