40- and 100-Gbps Ethernet MAC and PHY MegaCore Function User Guide

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ID 683114
Date 6/15/2022
Public
Document Table of Contents
Document Table of Contents x
Product Discontinuance Notification 1. About the 40- and 100-Gbps Ethernet MAC and PHY IP Core 2. Getting Started 3. Functional Description 4. Debugging the 40GbE and 100GbE Link A. 40-100GbE IP Core Example Design B. Address Map Changes for the 40-100GbE IP Core v12.0 Release C. 10GBASE-KR Registers D. Additional Information
1. About the 40- and 100-Gbps Ethernet MAC and PHY IP Core x
1.1. 40- and 100-Gbps Ethernet MAC and PHY IP Core Supported Features 1.2. 40-100GbE IP Core Device Family and Speed Grade Support 1.3. IP Core Verification 1.4. Performance and Resource Utilization 1.5. Release Information
1.2. 40-100GbE IP Core Device Family and Speed Grade Support x
1.2.1. Device Family Support 1.2.2. 40-100GbE IP Core Device Speed Grade Support
1.3. IP Core Verification x
1.3.1. Simulation Environment 1.3.2. Hardware Testing
1.4. Performance and Resource Utilization x
1.4.1. Resource Utilization for 40GbE IP Cores 1.4.2. Resource Utilization for 100GbE IP Cores
1.4.2. Resource Utilization for 100GbE IP Cores x
1.4.2.1. Resource Utilization for 100GbE CAUI–4 IP Cores
2. Getting Started x
2.1. Installing and Licensing Intel® FPGA IP Cores 2.2. Specifying the 40-100GbE IP Core Parameters and Options 2.3. IP Core Parameters 2.4. Files Generated for the 40-100GbE IP Core 2.5. Simulating the IP Core 2.6. Integrating Your IP Core in Your Design 2.7. 40-100GbE IP Core Testbenches 2.8. Simulating the 40‑100GbE IP Core With the Testbenches 2.9. Compiling the Full Design and Programming the FPGA 2.10. Initializing the IP Core
2.1. Installing and Licensing Intel® FPGA IP Cores x
2.1.1. Intel® FPGA IP Evaluation Mode
2.6. Integrating Your IP Core in Your Design x
2.6.1. Pin Assignments 2.6.2. External Transceiver Reconfiguration Controller Required in Stratix V Designs 2.6.3. Placement Settings for the 40-100GbE IP Core
2.7. 40-100GbE IP Core Testbenches x
2.7.1. Testbenches with Adapters 2.7.2. Testbenches without Adapters 2.7.3. Understanding the Testbench Behavior
2.8. Simulating the 40‑100GbE IP Core With the Testbenches x
2.8.1. Generating the Testbench 2.8.2. Simulating with the Modelsim Simulator 2.8.3. Simulating with the NCSim Simulator 2.8.4. Simulating with the VCS Simulator 2.8.5. Testbench Output Example: 40GbE IP Core with Adapters 2.8.6. Testbench Output Example: 100GbE IP Core with Adapters
3. Functional Description x
3.1. High Level System Overview 3.2. 40-100GbE MAC and PHY Functional Description 3.3. Signals 3.4. Software Interface: Registers 3.5. Ethernet Glossary
3.2. 40-100GbE MAC and PHY Functional Description x
3.2.1. IP Core TX Datapath 3.2.2. IP Core TX Data Bus Interfaces 3.2.3. 40-100GbE IP Core RX Datapath 3.2.4. IP Core RX Data Bus Interfaces 3.2.5. 40GbE Lower Rate 24.24 Gbps MAC and PHY 3.2.6. 100GbE CAUI–4 PHY 3.2.7. External Reconfiguration Controller 3.2.8. Congestion and Flow Control Using Pause Frames 3.2.9. Pause Control and Generation Interface 3.2.10. Pause Control Frame and Non‑Pause Control Frame Filtering and Forwarding 3.2.11. 40-100GbE IP Core Modes of Operation 3.2.12. Link Fault Signaling Interface 3.2.13. Statistics Counters Interface 3.2.14. MAC – PHY XLGMII or CGMII Interface 3.2.15. Lane to Lane Deskew Interface 3.2.16. PCS Test Pattern Generation and Test Pattern Check 3.2.17. Transceiver PHY Serial Data Interface 3.2.18. 40GBASE-KR4 IP Core Variations 3.2.19. Control and Status Interface 3.2.20. Clocks 3.2.21. Resets
3.2.1. IP Core TX Datapath x
3.2.1.1. Preamble, Start, and SFD Insertion 3.2.1.2. Address Insertion 3.2.1.3. Length/Type Field Processing 3.2.1.4. Frame Padding 3.2.1.5. Frame Check Sequence (CRC-32) Insertion 3.2.1.6. Inter‑Packet Gap Generation and Insertion
3.2.2. IP Core TX Data Bus Interfaces x
3.2.2.1. 40-100GbE IP Core User Interface Data Bus 3.2.2.2. 40-100GbE IP Core TX Data Bus with Adapters (Avalon-ST Interface) 3.2.2.3. 40-100GbE IP Core TX Data Bus Without Adapters (Custom Streaming Interface) 3.2.2.4. Bus Quantization Effects With Adapters 3.2.2.5. User Interface to Ethernet Transmission
3.2.2.5. User Interface to Ethernet Transmission x
3.2.2.5.1. 40GbE IP Core Without Adapters 3.2.2.5.2. 100GbE IP Core Without Adapters 3.2.2.5.3. Order of Transmission
3.2.3. 40-100GbE IP Core RX Datapath x
3.2.3.1. 40-100GbE IP Core RX Filtering 3.2.3.2. 40-100GbE IP Core Preamble Processing 3.2.3.3. 40-100GbE IP Core FCS (CRC-32) Removal 3.2.3.4. 40-100GbE IP Core CRC Checking 3.2.3.5. RX CRC Forwarding 3.2.3.6. RX Automatic Pad Removal Control 3.2.3.7. Address Checking 3.2.3.8. Inter-Packet Gap 3.2.3.9. Pause Ignore
3.2.4. IP Core RX Data Bus Interfaces x
3.2.4.1. 40-100GbE IP Core User Interface Data Bus 3.2.4.2. 40-100GbE IP Core RX Data Bus with Adapters (Avalon-ST Interface) 3.2.4.3. 40-100GbE IP Core RX Data Bus Without Adapters (Custom Streaming Interface) 3.2.4.4. 100GbE IP Core RX Client Interface Examples 3.2.4.5. Error Conditions on the RX Datapath
3.2.8. Congestion and Flow Control Using Pause Frames x
3.2.8.1. Conditions Triggering XOFF Frame Transmission 3.2.8.2. Conditions Triggering XON Frame Transmission 3.2.8.3. Pause Transmission Logic
3.2.14. MAC – PHY XLGMII or CGMII Interface x
3.2.14.1. MAC to PHY Connection Interface
3.2.17. Transceiver PHY Serial Data Interface x
3.2.17.1. PCS BER Monitor
3.2.18. 40GBASE-KR4 IP Core Variations x
3.2.18.1. 40GBASE-KR4 Reconfiguration Interface 3.2.18.2. 40GBASE-KR4 Microprocessor Interface
3.3. Signals x
3.3.1. Signals of MAC and PHY Variations Without Adapters 3.3.2. Signals of MAC and PHY Variations With Adapters 3.3.3. Signals of 40-100GbE MAC‑Only IP Core Variations 3.3.4. Signals of 40-100GbE PHY‑Only IP Core Variations
3.4. Software Interface: Registers x
3.4.1. IP Core Registers 3.4.2. 40‑100GbE Example Design Registers
3.4.1. IP Core Registers x
3.4.1.1. Transceiver PHY Control and Status Registers 3.4.1.2. Lock Status Registers 3.4.1.3. Bit Error Flag Registers 3.4.1.4. PCS Hardware Error Register 3.4.1.5. BER Monitor Register 3.4.1.6. Test Mode Register 3.4.1.7. Test Pattern Counter Register 3.4.1.8. Link Fault Signaling Registers 3.4.1.9. MAC and PHY Reset Registers 3.4.1.10. PCS‑VLANE Registers 3.4.1.11. PRBS Registers 3.4.1.12. 40GBASE-KR4 Registers 3.4.1.13. MAC Configuration and Filter Registers 3.4.1.14. Pause Registers 3.4.1.15. MAC Hardware Error Register 3.4.1.16. CRC Configuration Register 3.4.1.17. MAC Feature Configuration Registers 3.4.1.18. MAC Address Registers 3.4.1.19. Statistics Registers
3.4.2. 40‑100GbE Example Design Registers x
3.4.2.1. PMD Registers 3.4.2.2. MDIO Registers 3.4.2.3. 2‑Wire Serial Interface Registers
C. 10GBASE-KR Registers x
C.1. 10GBASE-KR PHY Register Definitions
D. Additional Information x
D.1. 40- and 100-Gbps Ethernet MAC and PHY MegaCore Function User Guide Revision History D.2. How to Contact Altera D.3. Typographic Conventions
Product Discontinuance Notification
1. About the 40- and 100-Gbps Ethernet MAC and PHY IP Core
2. Getting Started
3. Functional Description
4. Debugging the 40GbE and 100GbE Link
A. 40-100GbE IP Core Example Design
B. Address Map Changes for the 40-100GbE IP Core v12.0 Release
C. 10GBASE-KR Registers
D. Additional Information

3.4.2.1. PMD Registers

Table 67.  PMD Control and Status RegistersThe physical medium dependent (PMD) control and status registers allow you to turn on and determine the status of the PMD device in the 40-100GbE IP core example design.

Address

Name

Bits

Description

HW Reset Value

Access

0x400

PMD_VERSION

[31:0]

PMD revision. The character string is “OPTs.”

0x4F505473

R

0x401

SCRATCH_PMD

[31:0]

Scratch register available for testing.

0x00000000

RW

0x402

PMD_CMD_CONFIG

[0]

Writing a 1 enables the PMD. When you set this register to the value of 1, the IP core seeks RX lock.

0x00000000

RW

0x403

CMD_STATUS

[6]

PMD global alarm.

1b’0

R

[5]

Programmable alarm 3. Defaults to module ready.

1b’0

R

[4]

Programmable alarm 2. Defaults to high power mode on.

1b’0

R

[3]

Programmable alarm 1. Defaults to RX CDR lock.

1b’0

R

[2]

RX side signal detected.

1’b0

R

[1]

When asserted, the PMD module is physically plugged in. When deasserted, it is offline.

1b’1

R

[0]

When 1, the PMD is resetting. When 0, the PMD is available.

1’b1

R

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