Low Latency Ethernet 10G MAC Intel® Arria® 10 FPGA IP Design Example User Guide

Download PDF
ID 683063
Date 1/11/2022
Public
Document Table of Contents
Document Table of Contents x
1. Quick Start Guide 2. 10M/100M/1G/10G Ethernet Design Example for Intel® Arria® 10 Devices 3. 1G/10G Ethernet Design Example for Intel® Arria® 10 Devices 4. 10GBASE-R Ethernet Design Example for Intel® Arria® 10 Devices 5. 1G/2.5G Ethernet Design Example for Intel® Arria® 10 Devices 6. 1G/2.5G/10G Ethernet Design Example for Intel® Arria® 10 Devices 7. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example for Intel® Arria® 10 Devices 8. Interface Signals Description 9. Configuration Registers Description 10. Low Latency Ethernet 10G MAC Intel® Arria® 10 FPGA IP Design Example User Guide Archives 11. Document Revision History for the Low Latency Ethernet 10G MAC Intel® Arria® 10 FPGA IP Design Example User Guide
1. Quick Start Guide x
1.1. Directory Structure 1.2. Generating the Design 1.3. Compiling and Simulating the Design 1.4. Compiling and Testing the Design in Hardware
1.2. Generating the Design x
1.2.1. Procedure 1.2.2. Design Example Parameters
1.3. Compiling and Simulating the Design x
1.3.1. Procedure 1.3.2. Testbench
1.4. Compiling and Testing the Design in Hardware x
1.4.1. Procedure 1.4.2. Hardware Setup
2. 10M/100M/1G/10G Ethernet Design Example for Intel® Arria® 10 Devices x
2.1. Features 2.2. Hardware and Software Requirements 2.3. Functional Description 2.4. Simulation 2.5. Hardware Testing 2.6. Interface Signals 2.7. Configuration Registers
2.3. Functional Description x
2.3.1. Design Components 2.3.2. Clocking Scheme 2.3.3. Reset Scheme
2.4. Simulation x
2.4.1. Test Case—Design Example with the IEEE 1588v2 Feature 2.4.2. Test Case—Design Example without the IEEE 1588v2 Feature
2.5. Hardware Testing x
2.5.1. Test Cases 2.5.2. Signal Tap Debug Signals
3. 1G/10G Ethernet Design Example for Intel® Arria® 10 Devices x
3.1. Features 3.2. Hardware and Software Requirements 3.3. Functional Description 3.4. Simulation 3.5. Hardware Testing 3.6. Interface Signals 3.7. Configuration Registers
3.3. Functional Description x
3.3.1. Design Components 3.3.2. Clocking Scheme 3.3.3. Reset Scheme
3.4. Simulation x
3.4.1. Test Case—Design Example with the IEEE 1588v2 Feature 3.4.2. Test Case—Design Example without the IEEE 1588v2 Feature
3.5. Hardware Testing x
3.5.1. Test Cases 3.5.2. Signal Tap Debug Signals
4. 10GBASE-R Ethernet Design Example for Intel® Arria® 10 Devices x
4.1. Features 4.2. Hardware and Software Requirements 4.3. Functional Description 4.4. Simulation 4.5. Hardware Testing 4.6. Interface Signals 4.7. Configuration Registers
4.3. Functional Description x
4.3.1. Design Components 4.3.2. Clocking and Reset Scheme
4.5. Hardware Testing x
4.5.1. Test Cases 4.5.2. Signal Tap Debug Signals
5. 1G/2.5G Ethernet Design Example for Intel® Arria® 10 Devices x
5.1. Features 5.2. Hardware and Software Requirements 5.3. Functional Description 5.4. Simulation 5.5. Hardware Testing 5.6. Interface Signal 5.7. Configuration Registers
5.3. Functional Description x
5.3.1. Design Components 5.3.2. Clocking Scheme 5.3.3. Reset Scheme 5.3.4. Partial Reconfiguration Ready
5.4. Simulation x
5.4.1. Test Case—Design Example with the IEEE 1588v2 Feature 5.4.2. Test Case—Design Example without the IEEE 1588v2 Feature
5.5. Hardware Testing x
5.5.1. Test Procedure
6. 1G/2.5G/10G Ethernet Design Example for Intel® Arria® 10 Devices x
6.1. Features 6.2. Hardware and Software Requirements 6.3. Functional Description 6.4. Simulation 6.5. Hardware Testing 6.6. Interface Signals 6.7. Configuration Registers
6.3. Functional Description x
6.3.1. Design Components 6.3.2. Clocking Scheme 6.3.3. Reset Scheme 6.3.4. Partial Reconfiguration Ready 6.3.5. Timing Constraints
6.5. Hardware Testing x
6.5.1. Test Procedure
7. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example for Intel® Arria® 10 Devices x
7.1. Features 7.2. Hardware and Software Requirements 7.3. Functional Description 7.4. Simulation 7.5. Hardware Testing 7.6. Interface Signals 7.7. Configuration Registers
7.3. Functional Description x
7.3.1. Design Components 7.3.2. Clocking Scheme 7.3.3. Reset Scheme
7.4. Simulation x
7.4.1. Test Case
7.5. Hardware Testing x
7.5.1. Test Procedure
8. Interface Signals Description x
8.1. Clock and Reset Interface Signals 8.2. Avalon® Memory-Mapped Interface Signals 8.3. Avalon® Streaming Interface Signals 8.4. PHY Interface Signals 8.5. Status Interface 8.6. IEEE 1588v2 Timestamp Interface Signals 8.7. Packet Classifier Interface Signals 8.8. ToD Interface Signals
9. Configuration Registers Description x
9.1. Register Access Definition 9.2. Low Latency Ethernet 10G MAC 9.3. PHY 9.4. Transceiver Reconfiguration 9.5. TOD
9.3. PHY x
9.3.1. 1G/10G PHY 9.3.2. 1G/2.5G/5G/10G Multi-rate PHY
1. Quick Start Guide
2. 10M/100M/1G/10G Ethernet Design Example for Intel® Arria® 10 Devices
3. 1G/10G Ethernet Design Example for Intel® Arria® 10 Devices
4. 10GBASE-R Ethernet Design Example for Intel® Arria® 10 Devices
5. 1G/2.5G Ethernet Design Example for Intel® Arria® 10 Devices
6. 1G/2.5G/10G Ethernet Design Example for Intel® Arria® 10 Devices
7. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example for Intel® Arria® 10 Devices
8. Interface Signals Description
9. Configuration Registers Description
10. Low Latency Ethernet 10G MAC Intel® Arria® 10 FPGA IP Design Example User Guide Archives
11. Document Revision History for the Low Latency Ethernet 10G MAC Intel® Arria® 10 FPGA IP Design Example User Guide

6.3.5. Timing Constraints

When you configure the PHY in 1G/2.5G/10G (MGBASE-T) configuration, Intel® recommends that you refer to the 1G/2.5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP Core section of Intel® Arria® 10 Transceiver PHY User Guide for details on the timing constraint examples.

In addition, you must set the false path from 10G PHY clock to Low Latency (LL) Ethernet 10G (10GbE) MAC logic and vice versa. Since the LL 10GbE MAC logic is not running 10G PHY clock, you do not need to ensure timing closure for LL 10GbE MAC data path at 10G PHY clock. For example: 
set_false_path -from [get_clocks "$rx_pma_clk_10g_name $rx_clkout_10g_name $tx_pma_clk_10g_name $tx_clkout_10g_name"] -to [get_registers *|alt_em10g32:*|*]
set_false_path -from [get_registers *|alt_em10g32:*|*] -to [get_clocks "$rx_pma_clk_10g_name $rx_clkout_10g_name $tx_pma_clk_10g_name $tx_clkout_10g_name"]
where the path indicated by rx_pma_clk_10g_name, rx_clkout_10g_name, tx_clkout_10g_name, and tx_clkout_10g_name is associated with the 10G PHY clock, whereas the alt_em10g32 path indicates the LL 10GbE MAC logic.
Related Information
Level Two Title