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AR# 44664

Virtex-5 GTP - 1Gbps line rate does not work when targeting a Virtex-5 LX20T device

Description

If I target a Virtex-5 LX20T device, the GTP IBERT core does not linkwith a line rate of 1Gbps.

Solution

The 1Gbps line rate does not work when targeting the Virtex-5 LX20T device.This is not a limitation of the GTP transceiver inside the device, but a limitation of the IBERT core. Since the IBERT core is intended to be used as a method of tuning the PMA inside the GT for the board, the best work-around is to use a 2Gbps line rate instead and tune the transceiver using the higher line rate.
AR# 44664
Date Created 10/27/2011
Last Updated 01/02/2013
Status Active
Type Known Issues
Devices
  • Virtex-5 LXT
Tools
  • ChipScope Pro - 11.3
  • ChipScope Pro - 11.4
  • ChipScope Pro - 11.5
  • More
  • ChipScope Pro - 10.1
  • ChipScope Pro - 10.1 sp1
  • ChipScope Pro - 10.1 sp2
  • ChipScope Pro - 10.1 sp3
  • ChipScope Pro - 11.1
  • ChipScope Pro - 11.2
  • ChipScope Pro - 12.1
  • ChipScope Pro - 12.2
  • ChipScope Pro - 12.3
  • ChipScope Pro - 12.4
  • ChipScope Pro - 13
  • ChipScope Pro - 13.1
  • ChipScope Pro - 13.2
  • ChipScope Pro - 13.3
  • Less