Note: These calibration stages are skipped for data rates
below 1,600 Mbps.
Write DQS to DQ calibration is required to center align the
write DQS in the write DQ window per bit. At the start of Write DQS Centering and
Per-Bit Deskew, DQS is aligned to CK but no adjustments on the write window have been
made. Write window adjustments are made in the following two sequential stages:- Write Per-Bit Deskew
- Write DQS Centering