HDSPM_SyncRef1
case HDSPM_SyncRef1: return 2; /* AES 2 */
case HDSPM_SyncRef1+HDSPM_SyncRef0: return 3; /* AES 3 */
case HDSPM_SyncRef2+HDSPM_SyncRef1: return 6; /* AES 6 */
case HDSPM_SyncRef2+HDSPM_SyncRef1+HDSPM_SyncRef0:
case HDSPM_SyncRef1: return 2; /* TCO */
case HDSPM_SyncRef1+HDSPM_SyncRef0:
case HDSPM_SyncRef1+HDSPM_SyncRef0:
hdspm->control_register |= HDSPM_SyncRef1;
HDSPM_SyncRef1+HDSPM_SyncRef0;
HDSPM_SyncRef2+HDSPM_SyncRef1;
HDSPM_SyncRef2+HDSPM_SyncRef1+HDSPM_SyncRef0;
hdspm->control_register |= HDSPM_SyncRef1;
HDSPM_SyncRef0+HDSPM_SyncRef1;
HDSPM_SyncRef0+HDSPM_SyncRef1;
#define HDSPM_SyncRefMask (HDSPM_SyncRef0|HDSPM_SyncRef1|\