AN 846: Intel® Stratix® 10 Forward Error Correction

ID 683805
Date 7/02/2018
Document Table of Contents

5.6.2. Alignment Lock and Deskew

Once the RS-FEC transmit function achieves block lock on a PCS lane, it begins obtaining alignment marker lock.

Alignment marker lock identifies the PCS lane number received on a particular lane of the service interface. After alignment marker lock is achieved on all 20 lanes, all inter-lane skew is removed. The RS-FEC transmit function supports a maximum skew of 49 ns between PCS lanes, and a maximum skew variation of 400 ps.