Ethernet Subsystem Intel® FPGA IP User Guide: Early Access Customer Release

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ID 773413
Date 4/14/2023
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. Feature Description 3. Ethernet Subsystem Parameters 4. Subsystem Abstraction Layer (SAL) 5. Dynamic Reconfiguration Extension Subsystem 6. Interfaces and Signals 7. Recommended Clock Connections 8. Register Descriptions 9. Ethernet SS IP Example Design 10. Document Revision History for Ethernet Subsystem Intel FPGA IP User Guide: Early Access Customer Release
1. Introduction x
1.1. Supported Features 1.2. Getting Started 1.3. Resource Utilization
2. Feature Description x
2.1. Ethernet Subsystem Intel FPGA IP Overview 2.2. Supported Features
3. Ethernet Subsystem Parameters x
3.1. Parameter Editor Parameters 3.2. E-Tile Port Enablement Guidelines and Restrictions 3.3. F-tile Ethernet Port to PMA Channel Mapping
4. Subsystem Abstraction Layer (SAL) x
4.1. Subsystem Abstraction Layer (SAL) Commands
4.1. Subsystem Abstraction Layer (SAL) Commands x
4.1.1. NOP(0x0) 4.1.2. get_hssi_profile 4.1.3. set_hssi_profile 4.1.4. read_MAC_statistic (0x3) 4.1.5. get_mtu(0x4) 4.1.6. set_csr for E-Tile (0x5) 4.1.7. set_csr for F-Tile 4.1.8. get_csr for E-Tile (0x6) 4.1.9. get_csr for F-Tile 4.1.10. enable_loopback for E-Tile (0x7) 4.1.11. enable_loopback for F-Tile 4.1.12. disable_loopback for E-Tile (0x8) 4.1.13. disable_loopback for F-Tile 4.1.14. Reset MAC Statistics (0x9) 4.1.15. set_mtu for F-Tile 4.1.16. Ncsi_get_link_status 4.1.17. Reserved 4.1.18. firmware_version (0xFF)
6. Interfaces and Signals x
6.1. AXI4 Interfaces 6.2. Serial Interface 6.3. Clocks 6.4. Resets
6.1. AXI4 Interfaces x
6.1.1. AXI-Lite CSR 6.1.2. AXI-ST Client Interface 6.1.3. AXI-ST PHY Direct 6.1.4. AXI-ST PTP 6.1.5. Flow Control
7. Recommended Clock Connections x
7.1. Driving Multiple Ports with the Same Clock 7.2. Alternate Clock Connections for MAC Async Client FIFO 7.3. F-Tile Clock Connections for PTP Synchronous and Asynchronous cases 7.4. Clock Connections for SyncE Operation 7.5. F-Tile PMA and FEC Direct PHY IP Clock Output
8. Register Descriptions x
8.1. Subsystem Registers 8.2. Port Registers 8.3. F-tile Address Maps 8.4. F-tile ANLT Port Register Map 8.5. F-tile PTP Tile Adapter Register Map
8.1. Subsystem Registers x
8.1.1. Device Feature Header Lo 8.1.2. Device Feature Header Hi 8.1.3. Feature GUID_L 8.1.4. Feature GUID_H 8.1.5. Feature CSR ADDR 8.1.6. Feature CSR Size Group 8.1.7. Version 8.1.8. Feature List 8.1.9. Interface Attribute Port X Parameters 8.1.10. HSSI Command/Status 8.1.11. HSSI Control/Address 8.1.12. HSSI Read Data 8.1.13. HSSI Write Data 8.1.14. HSSI Ethernet Port X Status
8.2. Port Registers x
8.2.1. E-Tile PTP Packet Classifier Registers
8.2.1. E-Tile PTP Packet Classifier Registers x
8.2.1.1. Recognized and Unrecognized Packet Counters 8.2.1.2. Parse Graph Specific Packet Counters
9. Ethernet SS IP Example Design x
9.1. Steps to Generate the Example Design 9.2. Supported Simulators 9.3. Running the Simulation Tests 9.4. Running the Hardware Tests
9.3. Running the Simulation Tests x
9.3.1. Steps to Simulate the Design Example
9.4. Running the Hardware Tests x
9.4.1. Supported Boards 9.4.2. Steps to Compile the Design Example for Hardware 9.4.3. Steps to Run the Design Example on Hardware
1. Introduction
2. Feature Description
3. Ethernet Subsystem Parameters
4. Subsystem Abstraction Layer (SAL)
5. Dynamic Reconfiguration Extension Subsystem
6. Interfaces and Signals
7. Recommended Clock Connections
8. Register Descriptions
9. Ethernet SS IP Example Design
10. Document Revision History for Ethernet Subsystem Intel FPGA IP User Guide: Early Access Customer Release

4.1.10. enable_loopback for E-Tile (0x7)

Issuing the enable_loopback SAL command enables internal serial loopback mode on PMA. Below are the steps carried out by NIOS Firmware to enable serial loopback for E-tile transceiver PMA.
  1. Write the PMA attribute code (0x0008) and data (0x0101) to the PMA Avalon® Mapped-memory reconfiguration interface registers 0x84 to 0x87.
  2. Issue a PMA attribute code request by setting 0x90[0] to 1.
  3. Verify that the PMA attribute code is sent to the PMA by verifying that 0x8A[7] is asserted.
  4. Verify that 0x8B[0] de-asserts to indicate that the PMA attribute code transaction is completed.
  5. Read 0x89 to 0x88 to determine PMA attribute code is returning 0x0008.
  6. Write 0x8A[7] to 1 to clear the 0x8A[7] value.
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