Article ID: 000076994 Content Type: Product Information & Documentation Last Reviewed: 04/19/2023

How is the Intel® Stratix® 10 DDR4 IP chip select signals mapped for the top and bottom memory devices in a clamshell topology?

Environment

  • Intel® Quartus® Prime Pro Edition
  • External Memory Interfaces Intel® Stratix® 10 FPGA IP
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    When the clamshell topology is enabled in the Intel® Stratix® 10 DDR4 IP Parameter Editor, each rank requires two CS pins to configure the top and bottom memory chips separately. The following content shows how to map the CS pins from FPGA to memory chips in single-rank and dual ranks designs.

     

     

    Resolution

    For single-rank components:

    The Top (non-mirrored) components, FPGA_CS0, goes to MEM_TOP_CS0

    The bottom (mirrored) components, FPGA_CS1, goes to MEM_BOT_CS0

     

    For Dual-Rank components:

    The Top (non-mirrored) components, FPGA_CS0 goes to MEM_TOP_CS0 and FPGA_CS1 goes to MEM_TOP_CS1

    The bottom (mirrored) components, FPGA_CS2 goes to MEM_BOT_CS0 and FPGA_CS3 goes to MEM_BOT_CS1

    Related Products

    This article applies to 1 products

    Intel® Stratix® 10 FPGAs and SoC FPGAs