MRM
f_abr_vc->f_nrmexp =(((srv_p->nrm +1) & 0x0f) << 12)|(MRM << 8) | trm;
csr0 |= MRM | MWI;
csr0 = MRL | MRM | (8 << BurstLenShift) | (1 << CALShift);