L- and H-Tile Transceiver PHY User Guide

ID 683621
Date 10/05/2023
Document Table of Contents

1.3.4. GXT Channel Usage

Intel® Stratix® 10 L-Tile/H-Tile transceivers support GXT channels.

Table 7.  Channel TypesThere are a total of 24 channels available per tile. You can configure them as either GX channels or as a combination of GX and (up to 16) GXT channels provided that the total does not exceed 24. You can use GXT channels as a GX channel, but they are subject to all of the GX channel placement constraints.
Tile Channel Type Number of Channels per Tile Channel Capability
Chip-to-Chip Backplane
L-Tile GX Up to 24 17.4 Gbps 12.5 Gbps
GXT 5 Up to 8 26.6 Gbps 12.5 Gbps
H-Tile GX Up to 24 17.4 Gbps
GXT 5 Up to 16 28.3 Gbps 28.3 Gbps

An ATX PLL can serve as the transmit PLL for up to six GXT channels.

Refer to AN 778: Intel® Stratix® 10 Transceiver Usage for detailed information about this section.

5 If you use GXT channel data rates, the VCCR_GXB and VCCT_GXB voltages must be set to 1.12 V.