Article ID: 000085130 Content Type: Troubleshooting Last Reviewed: 01/26/2022

Why does occasional truncation of received Ethernet frames occur with the Triple Speed Ethernet MAC version 7.2 under high load conditions?

Environment

  • Triple-Speed Ethernet Intel® FPGA IP
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    The Triple Speed Ethernet (TSE) MAC core (version 7.2) contains a bug which can result in the truncation of packet data if the following two conditions are met:

    • The word-alignment feature is enabled for received Ethernet frames (via the RX_SHIFT16 bit in the Rx_Cmd_Stat register)
    • The TSE MAC is receiving a “heavy load” of similarly-sized Ethernet frames ( 1 or -1 byte variation in length)
    Resolution

    To fix this problem, you can download the patch for Triple Speed Ethernet (TSE) MAC version 7.2 from the following link:

    Intel® FPGA IP Library software version 7.2 SP2  -  Patch 2.02

    Related Products

    This article applies to 1 products

    Intel® Programmable Devices