Article ID: 000080841 Content Type: Troubleshooting Last Reviewed: 07/10/2020

When using the Intel® Agilex® IOPLL Intel® FPGA IP, with IOPLL Type: set to Fabric-Feeding, direct and external feedback Compensation modes are not supported.

Environment

  • Intel® Quartus® Prime Pro Edition
  • IOPLL Intel® FPGA IP
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT

    Critical Issue

    Description

    Due to a problem in the Intel® Quartus® Prime Pro software edition v19.3 targeting the Intel® Agilex® IOPLL Intel® FPGA IP. The IOPLL Intel® FPGA IP will incorrectly allow selection of direct and external feedback Compensation modes when the IOPLL Type is set to Fabric-Feeding.

    Neither of these two Compensation Modes are supported when the IOPLL Type is set to Fabric-Feeding.

    Resolution

    Direct and External feedback compensation modes are not supported when the Intel® Agilex® IOPLL Intel® FPGA IP is in Fabric-Feeding mode.

    These invalid options have been removed starting from v20.1 of the Intel® Quartus® Prime Pro software.

     

    Related Products

    This article applies to 3 products

    Intel® Agilex™ 7 FPGAs and SoC FPGAs
    Intel® Agilex™ 7 FPGAs and SoC FPGAs F-Series
    Intel® Agilex™ 7 FPGAs and SoC FPGAs I-Series

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