F-Tile Dynamic Reconfiguration Design Example User Guide

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ID 710582
Date 8/18/2025
Public
Document Table of Contents
Document Table of Contents x
1. Quick Start Guide 2. Detailed Description for CPRI Multirate Design Example 3. Detailed Description for Ethernet Multirate Design Example 4. Detailed Description for Ethernet Multirate Design Example with Auto-Negotiation and Link Training Enabled 5. Detailed Description for PMA/FEC Direct PHY Multirate Design Example 6. Detailed Description for Ethernet to CPRI Design Example 7. Detailed Description for PMA/FEC Direct PHY Static IPs Design Implementation 8. F-Tile Dynamic Reconfiguration Design Example User Guide Archives 9. Document Revision History for the F-Tile Dynamic Reconfiguration Design Example User Guide
1. Quick Start Guide x
1.1. Hardware and Software Requirements 1.2. Generating the Design 1.3. Directory Structure 1.4. Compiling the Compilation-Only Project 1.5. Simulating the Design Example Testbench 1.6. Compiling and Configuring the Design Example in Hardware 1.7. Testing the Hardware Design Example
1.2. Generating the Design x
1.2.1. CPRI Multirate Design Example Parameters 1.2.2. Ethernet Multirate Design Example Parameters 1.2.3. PMA/FEC Direct PHY Multirate Design Example Parameters 1.2.4. Ethernet to CPRI Design Example Parameters
2. Detailed Description for CPRI Multirate Design Example x
2.1. CPRI Multirate Design Example: Functional Description 2.2. CPRI Multirate Design Example: Registers
2.1. CPRI Multirate Design Example: Functional Description x
2.1.1. CPRI Multirate Design Example: Simulation Testbench 2.1.2. CPRI Multirate Hardware Design Example 2.1.3. CPRI Multirate Design Example: Reset Scheme
3. Detailed Description for Ethernet Multirate Design Example x
3.1. Ethernet Multirate Design Example: Functional Description 3.2. Ethernet Multirate Design Example: Registers
3.1. Ethernet Multirate Design Example: Functional Description x
3.1.1. Ethernet Multirate Design Example: Simulation Testbench Dynamic Reconfiguration Sequence Example: 100GE-4 > 2x 50GE-1 > 4x 25GE-1 3.1.2. Ethernet Multirate Hardware Design Example 3.1.3. Ethernet Multirate Design Example: Reset Scheme
4. Detailed Description for Ethernet Multirate Design Example with Auto-Negotiation and Link Training Enabled x
4.1. Ethernet Multirate Design Example with AN/LT Enabled: Functional Description
4.1. Ethernet Multirate Design Example with AN/LT Enabled: Functional Description x
4.1.1. AN/LT with Dynamic Reconfiguration Design Example Enhancement: User Logic 4.1.2. Ethernet Multirate Design Example with AN/LT Enabled: Simulation Testbench 4.1.3. Ethernet Multirate Hardware Design Example with AN/LT Enabled
4.1.1. AN/LT with Dynamic Reconfiguration Design Example Enhancement: User Logic x
4.1.1.1. Interfaces 4.1.1.2. Theory of Operation 4.1.1.3. Using Main.cpp file in User Logic 4.1.1.4. User Logic Modes 4.1.1.5. Hardware Testing in Suspend Mode 4.1.1.6. Simulation Testing in Suspend Mode
4.1.3. Ethernet Multirate Hardware Design Example with AN/LT Enabled x
4.1.3.1. Ethernet Multirate Design Example with AN/LT Enabled: Reset Scheme
5. Detailed Description for PMA/FEC Direct PHY Multirate Design Example x
5.1. PMA/FEC Direct PHY Multirate Design Example: Functional Description 5.2. PMA/FEC Direct PHY Multirate Design Example: Registers
5.1. PMA/FEC Direct PHY Multirate Design Example: Functional Description x
5.1.1. PMA/FEC Direct PHY Multirate Design Example: Simulation Testbench 5.1.2. PMA/FEC Direct PHY Multirate Hardware Design Example 5.1.3. PMA/FEC Direct Multirate Design Example: Reset Scheme
6. Detailed Description for Ethernet to CPRI Design Example x
6.1. Ethernet to CPRI Design Example: Functional Description 6.2. Ethernet to CPRI Design Example: Registers
6.1. Ethernet to CPRI Design Example: Functional Description x
6.1.1. Ethernet to CPRI Dynamic Reconfiguration Design Example: Simulation Testbench 6.1.2. Ethernet to CPRI Dynamic Reconfiguration Hardware Design Example 6.1.3. Ethernet to CPRI Dynamic Reconfiguration Design Example: Reset Scheme
1. Quick Start Guide
2. Detailed Description for CPRI Multirate Design Example
3. Detailed Description for Ethernet Multirate Design Example
4. Detailed Description for Ethernet Multirate Design Example with Auto-Negotiation and Link Training Enabled
5. Detailed Description for PMA/FEC Direct PHY Multirate Design Example
6. Detailed Description for Ethernet to CPRI Design Example
7. Detailed Description for PMA/FEC Direct PHY Static IPs Design Implementation
8. F-Tile Dynamic Reconfiguration Design Example User Guide Archives
9. Document Revision History for the F-Tile Dynamic Reconfiguration Design Example User Guide

3.1.1. Ethernet Multirate Design Example: Simulation Testbench

Figure 9. Simulation Testbench Block Diagram for 25GE-1 Base Variant
Figure 10. Simulation Testbench Block Diagram for 25GE-1 with PTP Base Variant
Figure 11. Simulation Testbench Block Diagram for 100GE-4 Base VariantThe packet client block is available for each of the Ethernet rates.
Figure 12. Simulation Testbench Block Diagram for 100GE-4 with PTP Base VariantThe packet client block is available for each of the Ethernet rates.
Figure 13. Simulation Testbench Block Diagram for 400GE-8 Base VariantThe packet client block is available for each of the Ethernet rates.
Figure 14. Simulation Testbench Block Diagram for 400GE-8 with PTP Base VariantThe packet client block is available for each of the Ethernet rates.
Figure 15. Simulation Testbench Block Diagram for 400G-4 FHT Base Variant

The testbench program controls the testbench components via Avalon® memory-mapped interface access, status and control signals. The Avalon® memory-mapped interface arbiter decodes the Avalon® memory-mapped interface access from testbench program into multiple Avalon® memory-mapped interface slaves.

Simulation Flow:
  • Ethernet Multirate IP DUT is power-up based on base profile.
  • Initialize the testbench variables based on power-up profile. The parameter settings, located in the basic_avl_tb_top.sv file, are:
    • DR_NUM: To indicate the number of dynamic reconfiguration transitions.
    • DR_SEQ: To indicate the dynamic reconfiguration sequence.
  • Perform dynamic reconfiguration.
  • Check the testbench error flag and determine whether testbench passed or failed. The error flag is set to 1 if there is any error after dynamic reconfiguration traffic tests.

For customization, you can modify the DR_NUM and DR_SEQ localparam to configure the test flow. The profile ID is passed to the IP to configure the intended dynamic reconfiguration task.

Dynamic Reconfiguration Sequence Example: 100GE-4 > 2x 50GE-1 > 4x 25GE-1

To achieve this dynamic reconfiguration sequence, you must perform two dynamic reconfiguration transitions and specify the reconfiguration sequence. You update the local parameter settings file: 
// Available Modes
localparam DR_MODE_1X100GE_4       = 6'b00_00_00;
localparam DR_MODE_1X100GE_4_NOFEC = 6'b00_00_01; 
localparam DR_MODE_1X100GE_2       = 6'b00_00_11;
localparam DR_MODE_2x50GE_1        = 6'b01_01_00;
localparam DR_MODE_4X25GE_1 	   = 6'b10_00_00;
localparam DR_MODE_4X25GE_1_NOFEC  = 6'b10_00_01;

// Dynamic Reconfiguration setting
localparam DR_NUM = 2;
localparam [6:0] DR_SEQ [DR_NUM - 1 : 0] = {DR_MODE_4X25GE_1, DR_MODE_2X50GE_1}
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