External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP Design Example User Guide

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ID 772632
Date 6/26/2023
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Document Table of Contents
Document Table of Contents x
1. About the External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP 2. Design Example Quick Start Guide for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP 3. Design Example Description for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP 4. Document Revision History for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP Design Example User Guide
1. About the External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP x
1.1. Release Information
2. Design Example Quick Start Guide for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP x
2.1. Creating an EMIF Project 2.2. Generating and Configuring the EMIF IP 2.3. Configuring DQ Pin Swizzling 2.4. Generating the Synthesizable EMIF Design Example 2.5. Generating the EMIF Design Example for Simulation 2.6. Pin Placement for Intel Agilex® 7 M-Series EMIF IP 2.7. Compiling the Intel Agilex® 7 M-Series EMIF Design Example
2.1. Creating an EMIF Project x
2.1.1. Generating a Custom Memory Presets File
2.1.1. Generating a Custom Memory Presets File x
2.1.1.1. Memory Device Description IP Parameter Editor Guidelines 2.1.1.2. Saving a Memory Device Presets File 2.1.1.3. Examples for Generating a Custom Memory Presets File
2.1.1.3. Examples for Generating a Custom Memory Presets File x
2.1.1.3.1. Generating a Custom Memory Preset File for DDR4 2.1.1.3.2. Guidelines for Selecting the DDR4 DRAM Component Package Type 2.1.1.3.3. Generating a Custom Memory Preset File for DDR5 2.1.1.3.4. Guidelines for Selecting the DDR5 DRAM Component Package Type 2.1.1.3.5. Generating a Custom Memory Preset File for LPDDR5
2.2. Generating and Configuring the EMIF IP x
2.2.1. Intel Agilex® 7 M-Series EMIF Parameter Editor Guidelines 2.2.2. Using Custom Memory Device Presets from a File
3. Design Example Description for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP x
3.1. Synthesis Design Example 3.2. Simulation Design Example 3.3. Example Design Tab
3.2. Simulation Design Example x
3.2.1. Running Simulation
1. About the External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP
2. Design Example Quick Start Guide for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP
3. Design Example Description for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP
4. Document Revision History for External Memory Interfaces Intel Agilex® 7 M-Series FPGA IP Design Example User Guide

3.2. Simulation Design Example

The simulation design example contains the major blocks shown in the following figure.
  • An instance of the synthesis design example. As described in the previous section, the synthesis design example contains a traffic generator and an instance of the memory interface.
  • A memory model, which acts as a generic model that adheres to the memory protocol specifications. Frequently, memory vendors provide simulation models for their specific memory components that you can download from their websites.
Figure 38.  Simulation Design Sync Fabric Mode
Simulation Design Sync Fabric Mode
Figure 39.  Simulation Design Async Fabric Mode
Simulation Design Async Fabric Mode
Figure 40.  Simulation Design NOC Mode

Simulation Design NOC Mode

Note: You must place ref_clk_usr_pll. Refer to the Intel Agilex® 7 M-Series FPGA Network-on-Chip (NoC) User Guide for information on how to add NoC connectivity and address mapping to the simulation netlist.

You must add the following assignment to the .qsf file to allow for less-restricted placement of the user PLL: 

set_instance_assignment –name PLL_REFCLK_INPUT_TYPE NOT_BALANCED -to user_pll|altera_iopll_inst

If a user PLL shares an I/O bank with EMIF, you may additionally need to specify an operating voltage I/O standard. The voltage of the pin depends on the operating voltage of the EMIF occupying that bank, which, in turn, depends on the memory protocol, as follows:

  • DDR4 = 1.2V
  • DDR5 = 1.1V
  • LPDDR5 = 0.7V

For example, for a PLL whose reference clock is in the same bank as a DDR5 EMIF, the assignment show look like this:

set_instance_assignment -name IO_STANDARD "1.1V True Differential Signaling" -to "ref_clk_usr_pll"

Section Content
Running Simulation

Level Two Title