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AR# 35665

MIG v2.3-3.61 Virtex-5 DDR2 RDIMM - Does MIG support RDQS signals for RDIMMs?

Description

Some RDIMMs share the upper DQS (RDQS) signals on the same pins with DM signals.The RDQS refers to redundant data strobe and is enabledor disabled via the LOAD MODE command to the extended mode register (EMR). When RDQS is enabled, RDQS is output with read data only and is ignored during write data.

Solution

MIG does not support this feature and RDQS is disabled in theMIG design.
AR# 35665
Date Created 09/28/2010
Last Updated 12/15/2012
Status Active
Type General Article
Devices
  • Virtex-5 LXT
Tools
  • ISE Design Suite - 12.1
IP
  • MIG