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AR# 64237

MIG 7 Series - Timing parameter values are incorrect for certain memory parts

Description

Version Found: MIG 7 Series v2.3
Version Resolved: See (Xilinx Answer 54025)


When generating MIG 7 series targeting SODIMM MT4JSF12864HZ-1G4, the following timing parameters do not match those defined in the memory vendor data sheet for 800MT/s designs and 1066MT/s designs:

  •  tRRD
  •  tRAS

Solution

These incorrect parameter values can cause failures in memory design and should be fixed.  

In order to resolve this issue, create a custom memory part and update the timing parameters to accurately reflect the values defined in the memory vendors data sheet.


Revision History:
04/13/2015 - Initial Release

Note: The "Version Found" column lists the version the problem was first discovered.
The problem also exists in earlier versions, but no specific testing has been performed to verify earlier versions.
This is an issues with timing parameters of the core.

 

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
54025 MIG 7 Series - IP Release Notes and Known Issues for Vivado 2013.1 and newer tool versions N/A N/A
AR# 64237
Date Created 04/13/2015
Last Updated 04/30/2015
Status Active
Type Known Issues
Devices
  • Artix-7
  • Kintex-7
  • Virtex-7
IP
  • MIG 7 Series