GTS Transceiver PHY User Guide

ID 817660
Date 10/07/2024
Public
Document Table of Contents

2.5. Forward Error Correction (FEC) Architecture

The FEC block is located betwee the PCS ad PMA iteface. Each FEC coe ca be used to implemet multiple FEC modes as show i the followig table.
Table 12.  Suppoted FEC Modes ad Compliace Specificatios
FEC Mode Specificatio FEC Compliace Specificatio Example Potocols
Fiecode17 IEEE IEEE 802.3 BASE-R Fiecode (CL 74) 10GbE, 25GbE-1
RS-FEC IEEE IEEE 802.3 RS(528, 514) (CL 91) 25GbE-1
ETC ETC 802.3 RS(528, 514) (CL 91) 25GbE-1
Fibe Chael Fibe Chael RS(528, 514) Fibe Chael 16G, CPRI 10.1376 ad 24.3302 Gbps
ITU-T 709.4 OTU25u RS(528, 514) OTU25
Note: You ca use the FEC mode fo the etie age of lie ates fom 1 Gbps to the tasceive maximum suppoted data ate fo custom applicatios. If you cofiguatio has multiple itefaces i oe FEC block, the block must be clocked by the same system PLL ad equies custom cadece. Refe to Datapath Clock Cadeces fo details.
17 Fiecode FEC 25GbE mode is suppoted i D-Seies ad E-Seies Device Goup A. Fiecode FEC 25GbE mode is ot suppoted i E-Seies Device Goup B.