AR# 69313

描述

Version Found: MIG 7 Series v3.0

Version Resolved: See (Xilinx Answer 54025)

To achieve optimum resource utilization maintain the default controller options given by the tool. See AR#69313 for more information.

解决方案

In order to make the most efficient use of Artix-7 and Spartan-7 device resources, the MIG IP was optimized for certain controller options for LPDDR2, DDR3, and DDR3L based interfaces.

The interface rate is optimized up to 667Mbp/s (333MHz) and operating at higher data rates will cause a comparatively large increase in resource utilization.

Devices with a maximum memory interface clock rate less than 333MHz can operate up to their maximum value without any additional penalty.

The MIG IP is also optimized for component interfaces, a 2:1 PHY to controller clock ratio, strict command ordering, and the number of bank machines on a per device basis.

Using the default settings in the Controller Options page of the MIG customization GUI typically results in a 30% LUT saving when compared to designs that do not use the default settings.

Revision History

08/02/2017 - Initial Release

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