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AR# 35750 MIG v3.4-v3.8 Virtex-6 QDRII+ - Why is the QVLD signal left unconnected?

The MIG Virtex-6 QDRII+ design never uses the QVLD signal and leaves it unconnected.

This signal can be commented out in the UCF file to prevent any implementation errors and can be safely removed from the design.

The QVLD signal is removed from the MIG QDRII+ design starting in the 13.3 softwarerelease.

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
39128 MIG Virtex-6 and Spartan-6 v3.7 - Release Notes and Known Issues for ISE Design Suite 13.1 N/A N/A

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
43130 MIG Virtex-6 and Spartan-6 v3.9 - Release Notes and Known Issues for ISE Design Suite 13.3 N/A N/A
41347 MIG Virtex-6 and Spartan-6 v3.8 - Release Notes and Known Issues for ISE Design Suite 13.2 N/A N/A
39128 MIG Virtex-6 and Spartan-6 v3.7 - Release Notes and Known Issues for ISE Design Suite 13.1 N/A N/A
AR# 35750
Date Created 06/16/2011
Last Updated 05/20/2012
Status Active
Type Known Issues
Devices
  • Virtex-6 CXT
  • Virtex-6 HXT
  • Virtex-6 LX
  • More
  • Virtex-6 LXT
  • Virtex-6 SXT
  • Less
IP
  • MIG
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