AR# 33866

Virtex-6 FPGA GTH Transceiver Wizard v1.2 - Release Notes and Known Issues for ISE Software 11.4


This Answer Record contains the Release Notes and Known Issues for the Virtex-6 GTH Transceiver Wizard v1.2 released with ISE 11.4 and 11.5.



For the most recent updates to the IP installation instructions for this core, please go to:

For system requirements:

This file contains release notes for the Xilinx LogiCORE IP Virtex-6 FPGA GTH Transceiver Wizard v1.2 solution.

For the latest core updates, see the product page at:

New Features

  • Xilinx ISE 11.4 software support
  • OTU-1, OTU-4, OC-48 and OC-192 protocol templates

Known Issues

The following are known issues for v1.2 of this core at time of release:

  • For HXT devices that have only one GTH column, upon recustomization of the core, both columns will appear in the GUI. To generate a proper wrapper when recustomizing for these devices, only select GTHE1_QUADS from the X1 (right) column. This issue does not present itself for HXT devices that have two GTH columns.
  • Virtex-6 solutions are pending hardware validation

The most recent information, including known issues, workarounds, and resolutions for this version is provided in the IP Release Notes Guide at:

Technical Support

To obtain technical support, create a WebCase at

Questions are routed to a team with expertise using this product. Xilinx provides technical support for use of this product when used according to the guidelines described in the core documentation, and cannot guarantee timing, functionality, or support of this product for designs that do not follow specified guidelines.

Core Release History

Date By Version Description


12/02/2009 Xilinx, Inc. 1.2 ISE 11.4 support

09/16/2009 Xilinx, Inc. 1.1 Initial release


Linked Answer Records

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
38596 Virtex-6 FPGA GTH Transceiver - Known Issues and Answer Records List N/A N/A
AR# 33866
Date 11/10/2014
Status Active
Type General Article