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AR# 50697

MIG 7 Series DDR3 - tRFC maximum violation reported by memory model during DQS FOUND calibration stage


Version Found: v1.5

Version Resolved and other Known Issues: See (Xilinx Answer 45195).

Some MIG designs report a tRFC maximum violation by the memory model in the DQS FOUND calibration stage during behavioral simulations.


The violation only happens when running simulations with SIM_BYPASS_INIT_CAL == SIM_FULL.

There is no patch or workaround available.

You must upgrade to the latest version of MIG to work around the issue.

Revision History
07/25/2012 - Initial release of AR

AR# 50697
Date Created 07/11/2012
Last Updated 08/20/2014
Status Active
Type Known Issues
  • Artix-7
  • Kintex-7
  • Virtex-7
  • MIG 7 Series