Article ID: 000081154 Content Type: Troubleshooting Last Reviewed: 08/14/2023

Why does the UniPHY CORDROP_ERROR register show a non-zero value?

Environment

  • Quartus® II Software
  • DDR3 SDRAM Controller with UniPHY Intel® FPGA IP
    • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Why does the UniPHY CORDROP_ERROR register show a non-zero value?

    Resolution

    When you have ECC enabled with Auto Correction in your DDR3 UniPHY memory controller, you may see that the UniPHY Auto Correction Drop (CORDROP_ERROR) register contains a non-zero value. This register will increment when the error address FIFO in the controller is full, and the controller cannot schedule an auto-correction command.

    Related Products

    This article applies to 5 products

    Arria® V GT FPGA
    Arria® V GZ FPGA
    Arria® V ST SoC FPGA
    Arria® V SX SoC FPGA
    Arria® V GX FPGA

    Need more help?

    Contact support

    Disclaimer

    1

    All postings and use of the content on this site are subject to Intel.com Terms of Use.