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

Download PDF
ID 683026
Date 12/14/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents
Document Table of Contents x
1. Quick Start Guide 2. 10GBASE-R Ethernet Design Example 3. 10M/100M/1G/2.5G/10G Ethernet Design Example 4. 1G/2.5G Ethernet Design Example with IEEE 1588v2 Feature 5. 1G/2.5G/10G Ethernet Design Example with IEEE 1588v2 Feature 6. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example 7. Interface Signals Description 8. Configuration Registers Description 9. Low Latency Ethernet 10G MAC Intel® Stratix® 10 FPGA IP Design Example User Guide Archives 10. Document Revision History for the Low Latency Ethernet 10G MAC Intel® Stratix® 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. Changing Target Device in Hardware Design Example 1.5. 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
1.3.1. Procedure x
1.3.1.1. Updating PHY IP Design File Names
1.4. Changing Target Device in Hardware Design Example x
1.4.1. Procedure
1.5. Compiling and Testing the Design in Hardware x
1.5.1. Procedure 1.5.2. Hardware Setup
2. 10GBASE-R Ethernet Design Example 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 and Reset Scheme
2.5. Hardware Testing x
2.5.1. Test Cases 2.5.2. Configuring FIFO Depth for Avalon® Streaming Loopback 2.5.3. Running Avalon® Streaming Loopback Test Case with Jumbo Ethernet Packets
3. 10M/100M/1G/2.5G/10G Ethernet Design Example 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 3.3.4. Timing Constraints
3.5. Hardware Testing x
3.5.1. Test Procedure
4. 1G/2.5G Ethernet Design Example with IEEE 1588v2 Feature 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 Scheme 4.3.3. Reset Scheme 4.3.4. Timing Constraints
4.4. Simulation x
4.4.1. Test Case—Design Example with the IEEE 1588v2 Feature
4.5. Hardware Testing x
4.5.1. Test Procedure
5. 1G/2.5G/10G Ethernet Design Example with IEEE 1588v2 Feature x
5.1. Features 5.2. Hardware and Software Requirements 5.3. Functional Description 5.4. Simulation 5.5. Hardware Testing 5.6. Interface Signals 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. Timing Constraints
5.4. Simulation x
5.4.1. Test Case—Design Example with the IEEE 1588v2 Feature
5.5. Hardware Testing x
5.5.1. Changing to SFP+ Setting 5.5.2. Test Procedure
6. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example 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
6.4. Simulation x
6.4.1. Test Case—Design Example with the IEEE 1588v2 Feature 6.4.2. Test Case—Design Example without the IEEE 1588v2 Feature
6.5. Hardware Testing x
6.5.1. Test Procedure
7. Interface Signals Description x
7.1. Clock and Reset Interface Signals 7.2. Avalon® Memory-Mapped Interface Signals 7.3. Avalon® Streaming Interface Signals 7.4. PHY Interface Signals 7.5. Status Interface 7.6. IEEE 1588v2 Timestamp Interface Signals 7.7. Packet Classifier Interface Signals 7.8. TOD Interface Signals
8. Configuration Registers Description x
8.1. Register Access Definition 8.2. Low Latency Ethernet 10G MAC 8.3. PHY 8.4. Transceiver Reconfiguration 8.5. TOD
8.3. PHY x
8.3.1. 1G/2.5G/5G/10G Multi-rate PHY
1. Quick Start Guide
2. 10GBASE-R Ethernet Design Example
3. 10M/100M/1G/2.5G/10G Ethernet Design Example
4. 1G/2.5G Ethernet Design Example with IEEE 1588v2 Feature
5. 1G/2.5G/10G Ethernet Design Example with IEEE 1588v2 Feature
6. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example
7. Interface Signals Description
8. Configuration Registers Description
9. Low Latency Ethernet 10G MAC Intel® Stratix® 10 FPGA IP Design Example User Guide Archives
10. Document Revision History for the Low Latency Ethernet 10G MAC Intel® Stratix® 10 FPGA IP Design Example User Guide

3.3.4. Timing Constraints

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

In addition, you can set false path from native PHY 10G clock to Low Latency (LL) Ethernet 10G (10GbE) MAC logic and vice versa. Since the LL 10GbE MAC logic is not running 10G clock, you do not need to ensure timing closure for LL 10GbE MAC datapath at 10G clock. For example: 
set_false_path -from [get_clocks \$profile2_clk] \\
                   -to   [get_registers *|alt_em10g32:*|*]
set_false_path -from [get_registers *|alt_em10g32:*|*] \\
                   -to   [get_clocks \$profile2_clk]
where the path indicated by profile2 is associated to the native PHY 10G clock whereas the alt_em10g32 path indicates the LL 10GbE MAC logic.
Related Information
Level Two Title