AR# 34324


MIG Virtex-6 DDR2/DDR3 - Rank Support


Does the MIG DDR2/DDR3 controller support dual rank DIMMs?

Note: This Answer Record is part of the Xilinx MIG Solution Center (Xilinx Answer 34243) 

The Xilinx MIG Solution Center is available to address all questions related to MIG.

Whether you are starting a new design with MIG or troubleshooting a problem, use the MIG Solution Center to guide you to the right information.


MIG 3.3 and older
The 3.3 MIG design does not support dual rank DIMMs.

MIG 3.4 and later
Dual rank support for the Virtex-6 DDR3 FPGA design is available starting with MIG 3.4 (ISE Design Suite 12.1). 

The dual rank support calibrates to one rank of the DIMM. 

This restricts deep support to dual rank DIMMs only. 

Deep configurations with multiple single rank DIMMs are not supported. 

DDR3 Dual Rank DIMMs are supported at 303 MHz (3300 ps).

Note: There are currently no plans to add quad-rank support to the Virtex-6 DDR2/DDR3 MIG solution.



Answer Number 问答标题 问题版本 已解决问题的版本
34316 MIG Virtex-6 DDR2/DDR3 - Supported Features N/A N/A
AR# 34324
日期 08/18/2014
状态 Active
Type 综合文章
器件 More Less
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