Intel® Arria® 10 Transceiver PHY User Guide

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ID 683617
Date 3/28/2022
Public
Document Table of Contents

2.9.3.5. Arria 10 GT Channel Usage

All Arria 10 GT devices have a total of six GT transceiver channels to support 25.8 Gbps.

Arria 10 GT devices have three transceiver banks that support up to two GT channels. Each channel can operate as a duplex channel, TX only, or RX only channel. Transceiver banks GXBL1E and GXBL1H each contain two GT transceiver channels: Ch3 and Ch4. Transceiver bank GXBL1G contains two GT transceiver channels: Ch0 and Ch1. Channels 2 and 5 on any bank can only be configured as GX transceiver channels.

Table 223.  Valid Permutations for GT and GX Channel Configuration in Transceiver Bank GXBL1G for Channels 0, 1, and 2
GT Transceiver Channel Configuration A Configuration B Configuration C Configuration D
Ch2 Unusable Unusable Unusable GX
Ch1 GT GT Unusable GX
Ch0 GT Unusable GT GX

Notes on grouping channels Ch0, Ch1, and Ch2:

  • If channels 0 and 1 are configured as GT channels, channel 2 is unusable (Configuration A).
  • If either channel 0 or 1 is configured as a GT channel, the remaining channels are unusable (Configurations B and C).
  • If channels 0 and 1 are not configured as GT channels, this grouping can be all configured as GX channels (Configuration D).
  • If either channel 0 or 1 is used as a GT channel, then the ATX PLL adjacent to channel 0 and 1 must be reserved for GT channel configurations.
Table 224.  Valid Permutations for GT and GX Channel Configuration in Transceiver Banks GXBL1E and GXBL1H for Channels 3, 4, and 5
GT Transceiver Channel Configuration A Configuration B Configuration C Configuration D
Ch5 Unusable Unusable Unusable GX
Ch4 GT GT Unusable GX
Ch3 GT Unusable GT GX

Notes on grouping channels Ch3, Ch4, and Ch5:

  • If channels 3 and 4 are configured as GT channels, channel 5 is unusable (Configuration A).
  • If either channel 3 or 4 is configured as a GT channel, the remaining channels are unusable (Configurations B and C).
  • If channels 3 and 4 are not configured as GT channels, this grouping can be all configured as GX channels (Configuration D).
  • If either channel 3 or 4 is used as a GT channel, then the ATX PLL adjacent to channel 3 and 4 must be reserved for GT channel configurations.

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