Version Found: v1.5 Version Resolved and other Known Issues: See (Xilinx Answer 45195).
Some MIG designs may report a tRFC maximum violation by the memory model during DQS FOUND calibration stage during behavioral simulations.
Solution
The violation can only bee seen when running simulations with SIM_BYPASS_INIT_CAL == SIM_FULL. There is no patch or workaround available. All users must upgrade to the latest version of MIG to work around the issue.
Revision History 07/25/2012 - Initial release of AR