The CEC1-66/2112 Codec core implements cyclic FEC code operations aligned with IEEE 802.3 IEEE 802.3ap and 802.3ba standards, offering data reliability enhancements for Ethernet systems operating at up to 100Gbps. This independence encoder/decoder pair strengthens communication integrity by identifying and correcting bit errors, pertinent for robust transmission integrity in 100GBASE architectures. The core stands versatile for various application interfaces, notably supporting Ethernet MACs wherein accurate data handling and correction are critical to performance expectations.