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 01/02/2013
Status Active
Type Known Issues
Devices
Tools More Less