Intel® Arria® 10 Transceiver PHY User Guide

ID 683617
Date 9/15/2023
Public
Document Table of Contents

1.2.2.2. The GT Transceiver Channel

The GT transceiver channels are used for supporting data rates from 17.4 Gbps to 25.8 Gbps. The PCS Direct datapath that bypasses all PCS blocks is the primary configuration used to support GT data rates from 17.4 Gbps to 25.8 Gbps. Alternatively, the Enhanced PCS in Basic low latency configuration can also be used to support GT data rates from 17.4 Gbps to 25.8 Gbps. The GT transceiver channels can also be configured as GX transceiver channels. When they are configured as GX transceiver channels, the Standard PCS, Enhanced PCS, and PCIe* Gen3 PCS are available and they support data rates from 1.0 Gbps to 17.4 Gbps.

Figure 17. GT Transceiver Channel in Full Duplex Mode Operating Between 17.4 Gbps and 25.8 Gbps


Table 7.  PCS Types and Data Rates Supported by GT Channel Configurations
GT Channel Configuration PCS Type Data Rates Supported
GT Standard PCS Not available for GT configuration
Enhanced PCS 17.4 Gbps to 25.8 Gbps7
PCIe Gen3 PCS Not available for GT configuration
GX Standard PCS 1.0 Gbps to 12 Gbps
Enhanced PCS 1.0 Gbps 8 to 17.4 Gbps
PCIe Gen