User guide

Table 1-6: PCS Types Supported by GX Transceiver Channels
PCS Type Data Rate
Standard PCS 611 Mbps to 12 Gbps
Enhanced PCS 960 Mbps
(12)
to 17.4 Gbps
PCIe Gen3 PCS 8 Gbps
Note: 1. The GX channel can also operate in PCS Direct configuration for data rates from 611 Mbps to
17.4 Gbps.
2. The transmitter minimum operational data rate is 611 Mbps. For transmitter data rates less
than 611 Mbps, oversampling must be applied at the transmitter.
3. The receiver minimum operational data rate is 1.0 Gbps. For receiver data rates less than 1.0
Gbps, oversampling must be applied at the receiver.
The GT Transceiver Channel
The GT transceiver channels are used for supporting data rates from 17.4 Gbps to 28.3 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 28.3 Gbps. Alternatively, the Enhanced PCS in Basic low latency configuration can also
be used to support GT data rates from 17.4 Gbps to 28.3 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 611
Mbps to 17.4 Gbps.
(12)
Applies when operating in reduced power modes. For mid- and high-power modes, the Enhanced PCS
minimum data rate is 1600 Mbps.
UG-01143
2015.05.11
The GT Transceiver Channel
1-21
Arria 10 Transceiver PHY Overview
Altera Corporation
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