As serial link speeds have increased, the reach achievable has become more and more limited by the lossy nature of the physical media which introduces the need for forward error correction (FEC) methods in the data-recovery functionality of Ethernet port logic. Starting at 10G line rates, Firecode was introduced into the 802.3 Ethernet Standard. The 802.3bj IEEE draft approved in June of 2014 introduced the Reed Solomon FEC algorithm for higher speed backplane and copper links.
CoMira provides a complete family of FEC cores for use in Ethernet (100G/50G/40G/25G/10G) and other applications. These cores may be purchased standalone, or as a configurable option of the CoMira UMAC IP. CoMira FEC IP is designed using a similar architecture employed in the UMAC to facilitate seamless integration of the former into the latter.