F-Tile Dynamic Reconfiguration Design Example User Guide

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ID 710582
Date 4/11/2024
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 Enabled Auto-Negotiation and Link Training 5. Detailed Description for PMA/FEC Direct PHY Multirate Design Example 6. Detailed Description for Ethernet to CPRI Design Example 7. F-Tile Dynamic Reconfiguration Design Example User Guide Archives 8. 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 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 Enabled Auto-Negotiation and Link Training x
4.1. Ethernet Multirate Design Example with Enabled AN/LT: Functional Description
4.1. Ethernet Multirate Design Example with Enabled AN/LT: Functional Description x
4.1.1. Ethernet Multirate Design Example with Enabled AN/LT: Simulation Testbench 4.1.2. Ethernet Multirate Hardware Design Example with Enabled AN/LT
4.1.2. Ethernet Multirate Hardware Design Example with Enabled AN/LT x
4.1.2.1. Ethernet Multirate Design Example with Enabled AN/LT: 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 Enabled Auto-Negotiation and Link Training
5. Detailed Description for PMA/FEC Direct PHY Multirate Design Example
6. Detailed Description for Ethernet to CPRI Design Example
7. F-Tile Dynamic Reconfiguration Design Example User Guide Archives
8. Document Revision History for the F-Tile Dynamic Reconfiguration Design Example User Guide

2.1.1. CPRI Multirate Design Example: Simulation Testbench

Figure 7. Simulation Testbench Block Diagram

The testbench program is controlling the testbench components via Avalon® memory-mapped interface access, status and control signals. The Avalon® memory-mapped interface arbiter is used to decode the Avalon® memory-mapped interface access from testbench program into multiple Avalon® memory-mapped interface slaves.

Simulation Flow for Design Example:
  1. Disable the Testbench packet round-trip measurement.
  2. Power up the CPRI PHY Multirate IP DUT based on profile 0 (24G RS-FEC).
  3. Initialize the testbench variables based on power-up profile. The variables are:
    • cpri_speed: To indicate the speed of the current profile.
    • enable_rsfec: To indicate whether RS-FEC is enabled or disabled for the current profile.
    • current_dr_profile: To indicate the ID of the current profile.
  4. Perform dynamic reconfiguration.
  5. Check the testbench error flag and determine whether testbench passed or failed. This 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 test flow. Profile ID is passed into Dynamic Reconfiguration IP to configure the intended dynamic reconfiguration task.
  • DR_NUM: Number of Dynamic Reconfiguration transition
  • DR_SEQ: Dynamic Reconfiguration sequence
For example, you want to achieve this Dynamic Reconfiguration sequence: 24G RS-FEC > 10G > 4.9G. The localparams changes are:
  • DR_NUM = 2
  • DR_SEQ = {DR_TO_4P9G, DR_TO_10G};
Default configuration for the design example: 
localparam DR_TO_24G_RSFEC   = 4'h0;
localparam DR_TO_24G         = 4'h1;
localparam DR_TO_12G_RSFEC   = 4'h2;
localparam DR_TO_12G         = 4'h3;
localparam DR_TO_10G_RSFEC   = 4'h4;
localparam DR_TO_10G         = 4'h5;
localparam DR_TO_9P8G        = 4'h6;
localparam DR_TO_6G          = 4'h7;
localparam DR_TO_4P9G        = 4'h8;
localparam DR_TO_3G          = 4'h9;
localparam DR_TO_2P4G        = 4'ha;
localparam DR_TO_1G          = 4'hb;

localparam DR_NUM = 5;
localparam [3:0] DR_SEQ [DR_NUM-1 : 0] = {DR_TO_24G_RSFEC, DR_TO_2P4G, DR_TO_4P9G, DR_TO_9P8G, DR_TO_10G};
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