CALShift
csr0 |= MRL | (1 << CALShift) | (16 << BurstLenShift);
csr0 |= MRL | (2 << CALShift) | (16 << BurstLenShift);
csr0 |= MRL | (3 << CALShift) | (32 << BurstLenShift);
csr0 |= (8 << BurstLenShift) | (1 << CALShift);
csr0 = MRL | MRM | (8 << BurstLenShift) | (1 << CALShift);