Article ID: 000077134 Content Type: Troubleshooting Last Reviewed: 01/15/2013

LVDS PMA-based Triple Speed Ethernet IP Needs Regeneration from 12.0 to 12.1

Environment

  • Arria® V FPGAs and SoC FPGAs
  • Cyclone® V FPGAs and SoC FPGAs
  • Quartus® II Subscription Edition
  • Ethernet
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT

    Critical Issue

    Description

    The ALT_LVDS_RX megafunction has been instantiated with a rx_cda_reset port, which is not supported by the Arria V and Cyclone V device families.

    The error message states that the rx_cda_reset port does not exist. The rx_cda_reset port may have been removed to ease the reset recovery timing for the ALTLVDS_RX.

    This issue affects the ALTLVDS_RX in version 12.0 of the Arria V and Cyclone V devices and forces the triple speed ethernet IP to be regenerated in version 12.1.

    Resolution

    Regenerate the triple speed ethernet IP in version 12.1.

    This issue will be fixed in a future version.

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