The 200G IEEE 802.3bs RS-FEC core implements the Reed-Solomon Forward Error Correction (RS-FEC) functions which are part of the 200GBASE-R PCS layer, as described in IEEE 802.3bs and shown shaded in the following figure.
Figure 1. Architectural Position of
200G
Ethernet PCS Layer
The 200G IEEE 802.3bs RS-FEC core provides FEC encoding and decoding functions using the FPGA logic fabric. This 'soft logic' implementation is available in all supported device families.