AR# 45497

LogiCORE IP XAUI v10.1/v10.2 - sync_status is deasserted during data transfer on Kintex-7 and Virtex-7 Initial or General ES devices

Description

During data transfer on Kintex-7 or Virtex-7 Initial ES or General ES devices,sync_status is de-asserted. I do not see rxnotintable or rxdisperr being asserted.

Solution

To work around this issue, make thefollowing changesin the*_block.vhd (v) file:

Verilog:

From:
mgt_rxlock_r1 <= mgt_rxlock and (not mgt_rxelecidle_i) ;
To:
mgt_rxlock_r1 <= {4{mgt_plllocked}};

VHDL:

From:
mgt_rxlock_r1 <= mgt_rxlock and (not mgt_rxelecidle_i) ;
To:
mgt_rxlock_r1 <= (mgt_plllocked & mgt_plllocked & mgt_plllocked & mgt_plllocked);

Revision History
03/06/2012 - Fixed typo
02/27/2012 - Updated to include General ES devices
01/26/2012 - Updated to include Virtex-7 Initial ES deviceand XAUI v10.2
12/17/2011 - Initial Release

Was this Answer Record helpful?

Linked Answer Records

Associated Answer Records

Answer Number	Answer Title	Version Found	Version Resolved
43244	Design Advisory for the Kintex-7 and Virtex-7 FPGA GTX Transceiver - Attribute Updates, Issues, and Work-arounds for Initial Engineering Sample (ES) Silicon	N/A	N/A

AR# 45497
Date	05/19/2012
Status	Active
Type	Known Issues
IP	XAUI

Page Bookmarked