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AR# 47929

MIG 7 Series DDR3/DDR2 - When creating a custom memory part, the tREFI parameter does not get generated correctly

Description

Version Found: v1.4
Version Resolved and other Known Issues: See (Xilinx Answer 45195).

When creating a custom memory part in the MIG GUI, the tREFI parameter is not generated correctly. 

For example, when setting the tREFI parameter to 3.9 microseconds, the generated MIG rtl sets the tREFI to 7.8 microseconds.

Solution

This is an issue in the MIG GUI when generating a custom memory part and can be worked around by manually modifying the tREFI parameter value in the top-level module of the MIG design.

AR# 47929
Date Created 07/10/2012
Last Updated 08/19/2014
Status Active
Type Known Issues
Devices
  • Kintex-7
  • Virtex-7
Tools
  • ISE Design Suite - 14.1
  • ISE Design Suite - 13.4
  • ISE Design Suite - 13.3
IP
  • MIG 7 Series