Article ID: 000090887 Content Type: Error Messages Last Reviewed: 05/24/2022

Error(19063): Found an IOPLL cascade chain of three or more IOPLLs. The first three IOPLLs found are listed below.

Environment

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

    Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 22.1 and earlier, you may see this error when your design contains IOPLL to IOPLL clock connections through the mgmt_clk input port. 
    IOPLL to IOPLL clock connections through the mgmt_clk input port should not be considered as PLL cascading.
     

    Resolution

    A patch is available to fix this problem for the Intel® Quartus® Prime Pro Edition Software version 21.3

    Download and install Patch 0.36 from the appropriate link below.

    Download patch Intel® Quartus® Prime Pro Edition 21.3 Patch 0.36 for Windows (.exe) 
    Download patch Intel® Quartus® Prime Pro Edition 21.3 Patch 0.36 for Linux (.run) 
    Download the Readme for Intel® Quartus® Prime Pro Edition 21.3 Patch 0.36  (.txt) 

    This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Pro Edition Software.

    Related Products

    This article applies to 2 products

    Intel® Agilex™ 7 FPGAs and SoC FPGAs
    Intel® Stratix® 10 FPGAs and SoC FPGAs

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