REG_MIX3
uint8_t v = GET8(dev, REG_MIX3);
PUT8(dev, REG_MIX3, v);
SET8(dev, REG_MIX3, MIX3_RAUXREN | MIX3_RAUXLEN);
CLR8(dev, REG_MIX3, MIX3_RAUXREN | MIX3_RAUXLEN);
CLR8(dev, REG_MIX3, MIX3_VAUXRM | MIX3_VAUXLM);
SET8(dev, REG_MIX3, MIX3_VAUXRM | MIX3_VAUXLM);
CLR8(dev, REG_MIX3, MIX3_MICGAINZ);
SET8(dev, REG_MIX3, MIX3_MICGAINZ);