Article ID: 000074353 Content Type: Troubleshooting Last Reviewed: 03/16/2017

Is there a known issue with the pre-emphasis settings in Cyclone V LVDS IBIS models generated by the Quartus Prime software?

Environment

  • Intel® Quartus® Prime Pro Edition
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Yes, due to an issue with generation of Cyclone® V IBIS models in the Quartus® Prime software versions 16.0 and earlier, you will see swapped model behavior for the LVDS pre-emphasis setting.

    For pre-emphasis ENABLED - _p1:  simulation result shows pre-emphasis disabled.

    For pre-emphasis DISABLED- _p0:  simulation result shows pre-emphasis enabled.

    Resolution

    To work around this issue, manually change the pre-emphasis setting when generating the IBIS model in the affected versions of the Quartus Prime software.

    This issue is fixed in Quartus Prime software versions 16.1 and later.

    Related Products

    This article applies to 1 products

    Cyclone® V FPGAs and SoC FPGAs