CFIG1I
IW_WRITE_CODEC_1(CFIG1I | IW_MCE, 0x00); /* DMA 2 chan access */
IW_READ_CODEC_1(CFIG1I, reg);
IW_WRITE_CODEC_1(CFIG1I, reg | io);
IW_READ_CODEC_1(CFIG1I, reg);
IW_WRITE_CODEC_1(CFIG1I, reg & ~io);