Article ID: 000081243 Content Type: Troubleshooting Last Reviewed: 10/17/2011

Cyclone IV GX transceiver Rx does not support a clock tolerance of /- 500 PPM or /- 1000 PPM

Environment

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

    Critical Issue

    Description

    Cyclone IV GX transceiver Rx does not support a clock tolerance of /- 500 PPM or /- 1000 PPM.

    Resolution

    In the ALTGX MegaWizard Plug-In Manager, select a clock tolerance other than /- 500 PPM or /- 1000 PPM in What is the acceptable PPM threshold between the receiver CDR VDO and the receiver input reference clock? on the PLL/Ports tab of the Parameter Settings page.

    Related Products

    This article applies to 1 products

    Cyclone® IV FPGAs

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