AR_AggrLen
ads->ds_ctl6 &= ~AR_AggrLen;
ads->ds_ctl6 &= ~AR_AggrLen;
ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen);
ads->ds_ctl6 &= ~(AR_AggrLen | AR_PadDelim);
ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen);