Article ID: 000076164 Content Type: Troubleshooting Last Reviewed: 11/14/2013

Why does the Avalon interface of my DDR3 UniPHY-based memory controller use Avalon-MM signals instead of Avalon-ST signals?

Environment

  • Quartus® II Subscription Edition
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a problem in the Quartus® II software version 11.1 and later, the DDR3 UniPHY-based memory controllers with the efficiency monitor enabled incorrectly use the Avalon®-MM signal names (e.g. avl_waitrequest) instead of Avalon-ST signal names (e.g. avl_ready). There is a problem during the generate stage of the controller where the Avalon-MM interface of the efficiency monitor is exported instead of the Avalon-ST interface of the controller.

    Resolution

    This issue is fixed in the Quartus II software version 12.1 and later.

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