L- and H-Tile Transceiver PHY User Guide

ID 683621
Date 7/20/2022
Public
Document Table of Contents

1.3.2.1. GX Channel

Each GX transceiver channel has four types of PCS blocks that together support continuous datarates up to 17.4 Gbps. The various PCS blocks contain data processing functions such as encoding or decoding, scrambling or descrambling, word alignment, frame synchronization, FEC, and so on.

Figure 16. GX Transceiver Channel in TX/RX Duplex Mode
Table 5.  PCS Types Supported by GX Transceiver Channels
PCS Type L-Tile Production H-Tile Production
-2 Speed Grade -3 Speed Grade -1 Speed Grade -2 Speed Grades -3 Speed Grade
Standard PCS 12 Gbps 3 or 10.81344 Gbps 4 9.8304 Gbps4 12 Gbps3 or 10.81344 Gbps4 12 Gbps3 or 10.81344 Gbps4 9.8304 Gbps4
Enhanced PCS 17.4 Gbps
PCIe Gen3 PCS 8 Gbps
PCS Direct 17.4 Gbps
Note: Use the L-Tile/H-Tile Transceiver Native PHY Intel® Stratix® 10FPGA IP Parameter Editor to determine the datarate limitations of your selected PCS configuration.

Refer to Transceiver Configuration Rule Parameters table for a definition of the PCS Direct mode.

3 The 12 Gbps data rate at the receiver is only supported when the RX word aligner mode parameter is set to Manual.
4 This data rate is only supported when Byte Serializer and Deserializer mode is enabled.

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