Article ID: 000077458 Content Type: Troubleshooting Last Reviewed: 01/14/2014

Are there any problems when selecting External PLL mode on the Native PHY Megawizard for Arria V GX and Stratix V GX devices?

Environment

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

    Yes, when selecting External PLL mode on the Native PHY Megawizard™ for Arria®  V GX and Stratix®  V GX devices the tx_pll_refclk port remains as a useable port in Quartus® II software versions 12.0 SP2 and earlier.

    Resolution

    In external PLL mode you should only use ext_pll_clk port and leave the tx_pll_refclk port unconnected.

    This issue will be fixed in a future version of the Quartus II Software.

    Related Products

    This article applies to 2 products

    Stratix® V GX FPGA
    Arria® V GX FPGA