E-Tile Transceiver PHY User Guide

ID 683723
Date 9/30/2022
Public
Document Table of Contents

2.2.7.1. Fibre-Channel and CPRI Modes

The core RS-FEC setup is identical for 32 GFC (Fibre-Channel) and CPRI. The RS-FEC options appear in the GUI after you select the Enable RSFEC option. In these modes alignment/codeword markers are not used, and PN-5280 scrambling and descrambling are used.

The Number of data channels indicates how many data channels are RS-FEC-enabled within one block. The First RSFEC Lane determines, which lane is the first lane within one block. Together, these two parameters determine and fix the lanes you are using in the IP core. For example, if Number of data channels is set to 3, the only valid option for the first lane is 0 or 1. All the lanes must be contiguously placed within one block, and you must observe this rule to achieve valid IP configurations. Once you have correctly set those two parameters, the GUI indicates the channels being enabled.

Figure 31. Fibre-Channel Mode Settings

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