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

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ID 772632
Date 11/18/2024
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Document Table of Contents
Document Table of Contents x
1. About the External Memory Interfaces Agilex™ 7 M-Series FPGA IP 2. Design Example Quick Start Guide for External Memory Interfaces Agilex™ 7 M-Series FPGA IP 3. Design Example Description for External Memory Interfaces Agilex™ 7 M-Series FPGA IP 4. Document Revision History for External Memory Interfaces Agilex™ 7 M-Series FPGA IP Design Example User Guide
1. About the External Memory Interfaces Agilex™ 7 M-Series FPGA IP x
1.1. Release Information
2. Design Example Quick Start Guide for External Memory Interfaces Agilex™ 7 M-Series FPGA IP x
2.1. Creating an EMIF Project 2.2. Generating and Configuring the EMIF IP 2.3. Parameterizing the External Memory Interface for HPS IP 2.4. Configuring DQ Pin Swizzling 2.5. Generating the Synthesizable EMIF Design Example 2.6. Generating the EMIF Design Example for Simulation 2.7. Pin Placement for Agilex™ 7 M-Series EMIF IP 2.8. Compiling the Agilex™ 7 M-Series EMIF Design Example 2.9. Using the EMIF Design Example with the Test Engine IP 2.10. Generating the EMIF Design Example with the Performance Monitor
2.2. Generating and Configuring the EMIF IP x
2.2.1. Agilex™ 7 M-Series EMIF Parameter Editor Guidelines 2.2.2. Using Custom Memory Timing and I/O Configuration
2.3. Parameterizing the External Memory Interface for HPS IP x
2.3.1. Parameterization Flow 2.3.2. Parametering the EMIF HPS IP 2.3.3. Parameterizing the EMIF IP
2.4. Configuring DQ Pin Swizzling x
2.4.1. Example: DQ Pin Swizzling Within DQS group for x32 DDR4 interface 2.4.2. Example: Byte Swizzling for a x32 DDR4 interface, using a memory device of x8 width 2.4.3. Combining Pin and Byte Swizzling Example : Combining Pin and Byte Swizzling 2.4.4. Example: Swizzling for a x32 + ECC interface 2.4.5. Example: Swizzling for a 2Ch x32 + ECC interface 2.4.6. Example: Byte Swizzling for Lockstep Configuration
3. Design Example Description for External Memory Interfaces 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 Agilex™ 7 M-Series FPGA IP
2. Design Example Quick Start Guide for External Memory Interfaces Agilex™ 7 M-Series FPGA IP
3. Design Example Description for External Memory Interfaces Agilex™ 7 M-Series FPGA IP
4. Document Revision History for External Memory Interfaces Agilex™ 7 M-Series FPGA IP Design Example User Guide

2.4.3. Combining Pin and Byte Swizzling

Example : Combining Pin and Byte Swizzling

This example combines the two previous examples, entering the following swizzle parameters:

  • PIN_SWIZZLE_CH0_DQS0=3,1,2,0,4,7,5,6;
  • PIN_SWIZZLE_CH0_DQS2=16,23,18,19,20,21,22,17;
  • BYTE_SWIZZLE_CH0=2,X,X,X,1,0,3,X;

The following table shows the resulting pin placement after DQ pin and byte swizzling.

Table 8.  Example of resulting pin placement after DQ pin and byte swizzling
Lane Pin Index Default Effective Pinout
BL5 71 MEM_DQ[23] MEM_DQ[6]
70 MEM_DQ[22] MEM_DQ[5]
69 MEM_DQ[21] MEM_DQ[7]
68 MEM_DQ[20] MEM_DQ[4]
67    
66 MEM_DM_N[2] MEM_DM_N[0]
65 MEM_DQS_C[2] MEM_DQS_C[0]
64 MEM_DQS_T[2] MEM_DQS_T[0]
63 MEM_DQ[19] MEM_DQ[0]
62 MEM_DQ[18] MEM_DQ[2]
61 MEM_DQ[17] MEM_DQ[1]
60 MEM_DQ[16] MEM_DQ[3]
BL0 11 MEM_DQ[7] MEM_DQ[17]
10 MEM_DQ[6] MEM_DQ[22]
9 MEM_DQ[5] MEM_DQ[21]
8 MEM_DQ[4] MEM_DQ[20]
7    
6 MEM_DM_N[0] MEM_DM_N[2]
5 MEM_DQS_C[0] MEM_DQS_C[2]
4 MEM_DQS_T[0] MEM_DQS_T[2]
3 MEM_DQ[3] MEM_DQ[19]
2 MEM_DQ[2] MEM_DQ[18]
1 MEM_DQ[1] MEM_DQ[23]
0 MEM_DQ[0] MEM_DQ[16]
Note:

When using the EMIF IP with 2 channels , the syntax for CH0 and CH1 must be the following:

  • PIN_SWIZZLE_CH0_DQS0/ PIN_SWIZZLE_CH1_DQS0
  • PIN_SWIZZLE_CH0_DQS2/ PIN_SWIZZLE_CH1_DQS2
  • BYTE_SWIZZLE_CH0/ BYTE_SWIZZLE_CH1
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