Article ID: 000075636 Content Type: Troubleshooting Last Reviewed: 12/12/2018

Why does the 'Number of tags supported' parameter only show up to 64 for non-posted requests in the Intel® Arria® 10 and Intel® Cyclone® 10 GX Avalon®-ST Interface for PCI Express*?

Environment

  • Intel® Arria® 10 GX FPGA
  • Intel® Cyclone® 10 GX FPGA
  • Intel® Quartus® Prime Pro Edition
  • Intel® Arria® 10 Cyclone® 10 Hard IP for PCI Express
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    Description

    The Intel® Arria® 10 and Intel® Cyclone® 10 GX Avalon®-ST Interface for PCI Express* supports up to 64 tags for non-posted requests internally. To get up to 256 tags you need check the 'Enable Configuration Bypass (CfgBP)' parameter and implement the tag tracking mechanism in user logic.

    Resolution

    This additional information is scheduled to be added in a future update to the user guide.

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