E-tile Hard IP Intel® Agilex™ Design Example User Guide: Ethernet, E-tile CPRI PHY and Dynamic Reconfiguration

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ID 683860
Date 9/26/2022
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Document Table of Contents
Document Table of Contents x
1. About E-tile Hard IP Intel® Agilex™ Design Example User Guide 2. E-tile Ethernet IP for Intel® Agilex™ FPGA Design Example 3. E-tile CPRI PHY Intel® FPGA IP Design Example 4. E-Tile Dynamic Reconfiguration Design Example 5. E-tile Hard IP Intel® Agilex™ Design Examples User Guide Archives
2. E-tile Ethernet IP for Intel® Agilex™ FPGA Design Example x
2.1. Quick Start Guide 2.2. 10GE/25GE with Optional RS-FEC Design Examples 2.3. 100GE with Optional RS-FEC Design Example 2.4. Ethernet Toolkit Overview 2.5. Document Revision History for the E-tile Hard IP for Ethernet Intel® Agilex™ FPGA IP Design Example User Guide
2.1. Quick Start Guide x
2.1.1. Directory Structure 2.1.2. Generating the Design 2.1.3. Simulating the E-tile Ethernet IP for Intel Agilex FPGA Design Example Testbench 2.1.4. Compiling the Compilation-Only Project 2.1.5. Compiling and Configuring the Design Example in Hardware 2.1.6. Testing the E-tile Ethernet IP for Intel Agilex FPGA Hardware Design Example
2.1.6. Testing the E-tile Ethernet IP for Intel Agilex FPGA Hardware Design Example x
2.1.6.1. 10GE/25GE Design Example 2.1.6.2. 100GE MAC+PCS with Optional (528,514) RS-FEC or (544,514) RS-FEC and Adaptation Flow Hardware Design Example 2.1.6.3. 100GE PCS Only with Optional (528,514) RS-FEC or (544,514) RS-FEC, and Optional PTP Hardware Design Example
2.2. 10GE/25GE with Optional RS-FEC Design Examples x
2.2.1. Simulation Design Examples 2.2.2. Hardware Design Examples 2.2.3. 10GE/25GE Design Example Interface Signals 2.2.4. 10GE/25GE Design Examples Registers
2.2.1. Simulation Design Examples x
2.2.1.1. Non-PTP 10GE/25GE MAC+PCS with Optional RS-FEC Simulation Design Example 2.2.1.2. PTP 10GE/25GE MAC+PCS with Optional RS-FEC Simulation Design Example 2.2.1.3. 10GE/25GE PCS Only, OTN, or FlexE with Optional RS-FEC Simulation Design Example 2.2.1.4. 10GE/25GE Custom PCS with Optional RS-FEC Simulation Design Example
2.2.2. Hardware Design Examples x
2.2.2.1. 10GE/25GE MAC+PCS with Optional RS-FEC and PTP Hardware Design Example Components 2.2.2.2. 10GE/25GE PCS Only with Optional RS-FEC Hardware Design Example Components 2.2.2.3. 10GE/25GE Custom PCS with Optional RS-FEC Hardware Design Example
2.3. 100GE with Optional RS-FEC Design Example x
2.3.1. Simulation Design Examples 2.3.2. Hardware Design Examples 2.3.3. 100GE MAC+PCS with Optional RS-FEC Design Example Interface Signals 2.3.4. 100GE PCS with Optional RS-FEC Design Example Interface Signals 2.3.5. 100GE MAC+PCS with Optional RS-FEC Design Example Registers 2.3.6. 100GE PCS with Optional RS-FEC Design Example Registers
2.3.1. Simulation Design Examples x
2.3.1.1. Non-PTP E-tile Ethernet IP for Intel Agilex FPGA 100GE MAC+PCS with Optional RS-FEC Simulation Design Example 2.3.1.2. E-tile Ethernet IP for Intel Agilex FPGA 100GE MAC+PCS with Optional RS-FEC and PTP Simulation Design Example 2.3.1.3. E-tile Ethernet IP for Intel Agilex FPGA 100GE PCS Only with Optional RS-FEC Simulation Design Example 2.3.1.4. E-tile Ethernet IP for Intel Agilex FPGA 100GE OTN with Optional RS-FEC Simulation Design Example 2.3.1.5. E-tile Ethernet IP for Intel Agilex FPGA 100GE FlexE with Optional RS-FEC Simulation Design Example
2.3.2. Hardware Design Examples x
2.3.2.1. 100GE MAC+PCS with Optional RS-FEC and PMA Adaptation Flow Hardware Design Example Components 2.3.2.2. 100GE MAC+PCS with Optional RS-FEC and PTP Hardware Design Example 2.3.2.3. 100GE PCS with Optional RS-FEC Hardware Design Example Components 2.3.2.4. Ethernet Adaptation Flow for 100G (CAUI-2) PAM4 <---> 100G (CAUI-4) NRZ Dynamic Reconfiguration Design Example
2.4. Ethernet Toolkit Overview x
2.4.1. Features
3. E-tile CPRI PHY Intel® FPGA IP Design Example x
3.1. E-tile CPRI PHY Intel® FPGA IP Quick Start Guide 3.2. E-tile CPRI PHY Design Example Description 3.3. Document Revision History for the E-tile CPRI PHY Intel® FPGA IP Design Example User Guide
3.1. E-tile CPRI PHY Intel® FPGA IP Quick Start Guide x
3.1.1. Hardware and Software Requirements 3.1.2. Generating the Design 3.1.3. Directory Structure 3.1.4. Simulating the Design Example Testbench 3.1.5. Compiling the Compilation-Only Project 3.1.6. Compiling and Configuring the Design Example in Hardware 3.1.7. Testing the E-tile CPRI PHY Intel® FPGA IP Hardware Design Example
3.2. E-tile CPRI PHY Design Example Description x
3.2.1. Features 3.2.2. Simulation Design Example 3.2.3. Hardware Design Example 3.2.4. Interface Signals 3.2.5. Design Example Register Map for Reconfiguration
4. E-Tile Dynamic Reconfiguration Design Example x
4.1. Quick Start Guide 4.2. 10G/25G Ethernet Dynamic Reconfiguration Design Examples 4.3. 25G Ethernet to CPRI Dynamic Reconfiguration Design Example 4.4. CPRI Dynamic Reconfiguration Design Examples 4.5. 100G Ethernet Dynamic Reconfiguration Design Example 4.6. Document Revision History for the E-tile Dynamic Reconfiguration Design Example
4.1. Quick Start Guide x
4.1.1. Directory Structure 4.1.2. Generating the Design 4.1.3. Simulating the E-Tile Dynamic Reconfiguration Design Example Testbench 4.1.4. Compiling and Configuring the Design Example in Hardware 4.1.5. Testing the E-tile Dynamic Reconfiguration Hardware Design Example
4.1.2. Generating the Design x
4.1.2.1. Design Example Parameters
4.1.3. Simulating the E-Tile Dynamic Reconfiguration Design Example Testbench x
4.1.3.1. Running the Simulation with Default HEX File 4.1.3.2. Running the Simulation with New HEX File 4.1.3.3. Performing the Link Initialization
4.1.5. Testing the E-tile Dynamic Reconfiguration Hardware Design Example x
4.1.5.1. Running the Design Example in Hardware 4.1.5.2. Power Management Setting for Agilex Transceiver Signal Integrity Development Kit
4.2. 10G/25G Ethernet Dynamic Reconfiguration Design Examples x
4.2.1. Functional Description 4.2.2. Simulation Design Examples 4.2.3. Hardware Design Examples 4.2.4. 10GE/25GE Design Example Interface Signals 4.2.5. 10GE/25GE Design Examples Registers 4.2.6. Dynamic Reconfiguration Flow for 25GbE PTP FEC to 25GbE PTP Non-FEC
4.2.1. Functional Description x
4.2.1.1. Clocking Scheme
4.2.2. Simulation Design Examples x
4.2.2.1. 10GE/25GE MAC+PCS with RS-FEC and PTP Simulation Dynamic Reconfiguration Design Example Components 4.2.2.2. 10GE/25GE MAC+PCS with RS-FEC Simulation Dynamic Reconfiguration Design Example Components
4.2.3. Hardware Design Examples x
4.2.3.1. 10GE/25GE MAC+PCS with RS-FEC and PTP Hardware Dynamic Reconfiguration Design Example Components 4.2.3.2. 10GE/25GE MAC+PCS with RS-FEC Hardware Dynamic Reconfiguration Design Example Components
4.3. 25G Ethernet to CPRI Dynamic Reconfiguration Design Example x
4.3.1. Functional Description 4.3.2. Simulation Design Examples 4.3.3. Hardware Design Examples 4.3.4. 25G Ethernet to CPRI Design Example Interface Signals 4.3.5. 25G Ethernet to CPRI Design Examples Registers 4.3.6. Dynamic Reconfiguration Flow for 25GbE PTP FEC to 24G CPRI FEC
4.3.1. Functional Description x
4.3.1.1. Clocking Scheme 4.3.1.2. Reset
4.3.2. Simulation Design Examples x
4.3.2.1. 25GE MAC+PCS with RS-FEC and PTP to CPRI Simulation Dynamic Reconfiguration Design Example Components
4.3.3. Hardware Design Examples x
4.3.3.1. 25GE MAC+PCS with RS-FEC and PTP to CPRI Hardware Dynamic Reconfiguration Design Example Components
4.4. CPRI Dynamic Reconfiguration Design Examples x
4.4.1. Functional Description 4.4.2. Simulation Design Examples 4.4.3. Hardware Design Examples 4.4.4. CPRI Design Example Interface Signals 4.4.5. CPRI Design Example Registers 4.4.6. Dynamic Reconfiguration Flow for 24G CPRI FEC to 24G CPRI Non-FEC
4.4.1. Functional Description x
4.4.1.1. Clocking Scheme
4.4.2. Simulation Design Examples x
4.4.2.1. 24G CPRI PHY with RS-FEC Simulation Dynamic Reconfiguration Design Example Components 4.4.2.2. 9.8G CPRI PHY Simulation Dynamic Reconfiguration Design Example Components
4.4.3. Hardware Design Examples x
4.4.3.1. CPRI PHY with RS-FEC Hardware Dynamic Reconfiguration Design Example Components
4.5. 100G Ethernet Dynamic Reconfiguration Design Example x
4.5.1. Functional Description 4.5.2. Testing the 100G Ethernet Dynamic Reconfiguration Hardware Design Example 4.5.3. Simulation Design Examples 4.5.4. 100GE DR Hardware Design Examples 4.5.5. 100G Ethernet Dynamic Reconfiguration Design Example Interface Signals 4.5.6. 100G Ethernet Dynamic Reconfiguration Examples Registers 4.5.7. Steps to Enable FEC 4.5.8. Steps to Disable FEC
4.5.2. Testing the 100G Ethernet Dynamic Reconfiguration Hardware Design Example x
4.5.2.1. Dynamic Reconfiguration Flow in 100G Ethernet Dynamic Reconfiguration Example Design
4.5.3. Simulation Design Examples x
4.5.3.1. 100GE MAC+PCS with Optional RS-FEC Dynamic Reconfiguration Simulation Design Example 4.5.3.2. Simulating the E-tile Ethernet IP for Intel Agilex FPGA Design Example Testbench
4.5.4. 100GE DR Hardware Design Examples x
4.5.4.1. 100GE MAC+PCS with Optional RS-FEC Dynamic Reconfiguration Hardware Design Example Components
4.5.7. Steps to Enable FEC x
4.5.7.1. Configuring for 100G NRZ with RSFEC [KR-FEC (528,514)] 4.5.7.2. Configuring for 100G NRZ with RSFEC [KP-FEC (544,514)] 4.5.7.3. Configuring for 100G PAM4 with RSFEC [KP-FEC (544,514)]
1. About E-tile Hard IP Intel® Agilex™ Design Example User Guide
2. E-tile Ethernet IP for Intel® Agilex™ FPGA Design Example
3. E-tile CPRI PHY Intel® FPGA IP Design Example
4. E-Tile Dynamic Reconfiguration Design Example
5. E-tile Hard IP Intel® Agilex™ Design Examples User Guide Archives

4.4.2.1. 24G CPRI PHY with RS-FEC Simulation Dynamic Reconfiguration Design Example Components

The simulation block diagram below is generated using the following settings in the IP parameter editor:
  1. CPRI Protocol as DR Protocol.
  2. Under the CPRI Protocol tab:
    1. 24G CPRI RS-FEC as Select DR Design.
    2. Intel Agilex F-Series Transceiver-SoC Development Kit as the target development kit.
Figure 41. Simulation Block Diagram for 24G CPRI PHY with RS-FEC Dynamic Reconfiguration Design Example

The successful test displays the dynamic reconfiguration transition flow between various modes. Use preset HEX file provided for each design example or modify provided C code to enable specific transition simulation. For more information on HEX file, refer to Simulating the E-Tile Dynamic Reconfiguration Design Example Testbench.

To test a specific transition, reorder the dynamic reconfiguration transition flow tests in the main.c file and regenerate a new HEX file. Each test describes a transition from the starting rate to the destination rate.

This is the default simulation test sequence based on the provided HEX file.

  1. Toggle sl_tx_rst_n and sl_rx_rst_n reset signals.
  2. Dynamic reconfiguration (DR) test from 24G CPRI with RS-FEC to 12G CPRI with RS-FEC
  3. DR test from 12G CPRI with RS-FEC to 10G CPRI with RS-FEC
  4. DR test from 10G CPRI with RS-FEC to 9.8G CPRI
  5. DR test from 9.8G CPRI to 6G CPRI
  6. DR test from 6G CPRI to 4.9G CPRI
  7. DR test from 4.9G CPRI to 3G CPRI
  8. DR test from 3G CPRI to 2.4G CPRI
  9. DR test from 2.4G CPRI to 24G CPRI with RS-FEC
Each of the dynamic reconfiguration tests follows these steps:
  1. Assert sl_tx_rst_n and sl_rx_rst_n reset signals.
  2. Disable SERDES. Use PMA attribute code 0x0001 in the E-tile Transceiver PHY User Guide: PMA Attribute Codes section.
  3. Perform reference clock mux switching. Use this step when reconfiguring from a high-speed mode (10G/ 12G/24G) to a PMA direct low-speed mode (2.4G/3G/4.9G/6G/9.8G) and vice versa. For more information about the details of the changed register values, refer to the c3_reconfig.c file.
    1. Switch the PMA controller clock to the transceiver refclk1 clock.
    2. Change refclk reference clock from 184.32 MHz (i_clk_ref[0]) to 153.6 MHz (i_clk_ref[1]).
    3. Switch the PMA controller clock to the transceiver refclk0 clock.
    Note: Steps 3a and 3c are only applicable for Ethernet dynamic reconfiguration hardware tests to avoid potential hardware glitch due to the reference clock switch operation. These steps are available in the hardware test code but skip in the simulation test code.
  4. Trigger PMA analog reset. For more information about register descriptions, refer to the E-tile Transceiver PHY User Guide.
  5. Reconfigure the following registers for the Ethernet, RS-FEC, and transceiver blocks. For more information about the details of the changed register values, refer to the c3_reconfig.c file. For more information about the register descriptions, refer to the E-tile Hard IP for Ethernet and CPRI PHY Intel® FPGA IPs User Guide.
  6. Adjust the phase offset of a recovered clock. Use PMA attribute code 0x000E in the E-tile Transceiver PHY User Guide: PMA Attribute Codes section.
  7. Enable SERDES. Use PMA attribute code 0x0001 in the E-tile Transceiver PHY User Guide: PMA Attribute Codes section.
  8. Enable internal serial loopback. Use PMA attribute code 0x0008 in the E-tile Transceiver PHY User Guide: PMA Attribute Codes section.
  9. Deassert sl_tx_rst_n and sl_rx_rst_n reset signals.
  10. Wait for PIO_OUT[3:0] = 0x7 (o_sl_rx_pcs_ready, o_sl_rx_block_lock, and o_ehip_ready asserted).
  11. Clear Ethernet statistic counters.
  12. Enable the packet generator to start sending packets of data.
  13. Check for checker_pass status and waiting for PIO_OUT[3:0] = 0xF (checker_pass, o_sl_rx_pcs_ready, o_sl_rx_block_lock, and o_ehip_ready asserted).
  14. Disable the packet generator to stop sending packets.
The following sample output illustrates a successful simulation test run for a 24G MAC+PCS with RS-FEC IP core variation. 
# CPU is alive!
# End of test
# Nios has completed its transactions          1995670000
# Simulation PASSED          1995670000
# ** Note: $finish    : ./../basic_avl_tb_top.sv(634)
#    Time: 1995670 ns  Iteration: 1  Instance: /basic_avl_tb_top
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