CORB_CD_DEVICE_OFFSET
#define CORB_CD_DEVICE_MASK (CORB_CD_DEVICE_BITS << CORB_CD_DEVICE_OFFSET)
#define CORB_CD_DEVICE(x) ((x >> CORB_CD_DEVICE_OFFSET) & CORB_CD_DEVICE_BITS)
offset = CORB_CD_DEVICE_OFFSET;