Article ID: 000087044 Content Type: Troubleshooting Last Reviewed: 12/31/2014

RapidIO II IP Core I/O Logical Layer Slave Port Requires Continuous Write Signal Assertion

Environment

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

    Critical Issue

    Description

    The RapidIO II IP core I/O Logical layer slave port requires that the Avalon-MM master assert the ios_rd_wr_write signal continuously for the full duration of the incoming write burst. If the Avalon-MM master module deasserts the ios_rd_wr_write signal while it is sending write data to the RapidIO II IP core, the IP core incorrectly divides the incoming data into multiple transmitted packets on the RapidIO link.

    Resolution

    This issue has no workaround. You must ensure that all Avalon-MM master modules in your design that communicate with the RapidIO II IP core I/O Logical layer slave port, meet the requirement to assert the ios_rd_wr_write signal continuously for the full duration of any write burst to the RapidIO II IP core.

    This issue is fixed in version 14.1 of the RapidIO II IP core.

    Related Products

    This article applies to 1 products

    Intel® Programmable Devices