AN 738: Intel® Arria® 10 Device Design Guidelines

ID 683555
Date 6/30/2017
Document Table of Contents The GT Transceiver Channel

The GT transceiver channels are used for supporting data rates from 17.4 Gbps to 25.8 Gbps. The GT transceiver channels can also be reconfigured as GX transceiver channels. When they are reconfigured as GX transceiver channels, the Standard PCS, Enhanced PCS, and PCIe* Gen3 PCS are available and they support data rates from 1 Gbps to 17.4 Gbps.
Figure 7. GT Transceiver Channel in Full Duplex Mode Operating Between 17.4 Gbps and 25.8 Gbps
Table 66.  PCS Types and Data Rates Supported by GT Channel Configurations
GT Channel Configuration PCS Type Data Rates Supported
GT Standard PCS Not available
Enhanced PCS 17.4 Gbps to 25.8 Gbps (1)
PCIe Gen3 PCS Not available
GX Standard PCS 1 Gbps to 10 Gbps
Enhanced PCS 1 Gbps to 17.4 Gbps
PCIe Gen3 PCS 8 Gbps
  1. The Enhanced PCS must be configured in low latency mode to support data rate range from 17.4 Gbps to 25.8 Gbps.
  2. The GT channels can also operate in PCS-Direct configuration for data rates between 1 Gbps to 25.8 Gbps.