F-Tile Serial Lite IV Intel® FPGA IP User Guide

ID 683074
Date 11/16/2021
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4.1.2.3. Alignment Paired CW

Figure 13. Alignment Paired CW Format

The ALIGN CW is a paired CW with START/END or END/START CWs. You can insert the ALIGN paired CW by either asserting the tx_link_reinit signal, set the Alignment Period counter, or initiating a reset. When the ALIGN paired CW is inserted, the align field is set to 1 to initiate the receiver alignment block to check data alignment across all lanes.

Table 15.   ALIGN CW Field Values
Field Value
align 1
eop 0
sop 0
usr 0
seop 0