Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs

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ID 813665
Date 7/08/2024
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Document Table of Contents
Document Table of Contents x
1. Quick Start Guide 2. 10M/100M/1G Ethernet Design Example 3. 1G/2.5G Ethernet Design Example with IEEE 1588v2 Feature 4. 2.5G Ethernet Design Example 5. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example 6. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example with IEEE 1588 Design Example 7. Interface Signals Description 8. Configuration Registers Description 9. Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs Archives 10. Document Revision History for the Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs
1. Quick Start Guide x
1.1. Directory Structure 1.2. Generating the Design 1.3. Simulating the Design 1.4. Compiling and Configuring the Design Example in Hardware 1.5. Signal Tap Debugging
1.2. Generating the Design x
1.2.1. Procedure 1.2.2. Design Example Parameters
1.3. Simulating the Design x
1.3.1. Procedure 1.3.2. Testbench
1.4. Compiling and Configuring the Design Example in Hardware x
1.4.1. Procedure 1.4.2. Hardware Setup
1.5. Signal Tap Debugging x
1.5.1. Signal Tap Debug Signals
2. 10M/100M/1G 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 Scheme 2.3.3. Reset Scheme
2.5. Hardware Testing x
2.5.1. Test Procedure
2.7. Configuration Registers x
2.7.1. Packet Generator and Traffic Monitor Register Map
3. 1G/2.5G Ethernet Design Example with IEEE 1588v2 Feature x
3.1. Features 3.2. Hardware and Software Requirements 3.3. Functional Description 3.4. Simulation 3.5. Interface Signals 3.6. 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
4. 2.5G Ethernet Design Example 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
4.5. Hardware Testing x
4.5.1. Test Procedure
4.7. Configuration Registers x
4.7.1. Packet Generator and Traffic Monitor Register Map
5. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example 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
5.5. Hardware Testing x
5.5.1. Test Procedure
5.7. Configuration Registers x
5.7.1. Packet Generator and Traffic Monitor Register Map
6. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example with IEEE 1588 Design Example x
6.1. Features 6.2. Hardware and Software Requirements 6.3. Functional Description 6.4. Simulation 6.5. Interface Signals
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
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
8. Configuration Registers Description x
8.1. Register Access Definition 8.2. Low Latency Ethernet 10G MAC 8.3. PHY
8.3. PHY x
8.3.1. 1G/2.5G/5G/10G Multirate PHY
1. Quick Start Guide
2. 10M/100M/1G Ethernet Design Example
3. 1G/2.5G Ethernet Design Example with IEEE 1588v2 Feature
4. 2.5G Ethernet Design Example
5. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example
6. 10M/100M/1G/2.5G/5G/10G (USXGMII) Ethernet Design Example with IEEE 1588 Design Example
7. Interface Signals Description
8. Configuration Registers Description
9. Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs Archives
10. Document Revision History for the Low Latency Ethernet 10G MAC Intel® FPGA IP Design Example User Guide: Agilex™ 5 FPGAs and SoCs

7.6. IEEE 1588v2 Timestamp Interface Signals

Table 28.  IEEE 1588v2 Timestamp Interface Signals
Signal Direction Width Description
tx_egress_timestamp_96b_valid Out [NUM_CHANNELS] When asserted, this signal qualifies the timestamp, tx_egress_timestamp_96b_data[], and the fingerprint, tx_egress_timestamp_96b_fingerprint[], of the TX frame.
tx_egress_timestamp_96b_data Out [NUM_CHANNELS][96] Carries the 96-bit egress timestamp in the following format:
  • Bits 48 to 95: 48-bit seconds field
  • Bits 16 to 47: 32-bit nanoseconds field
  • Bits 0 to 15: 16-bit fractional nanoseconds field
tx_egress_timestamp_96b_fingerprint Out [NUM_CHANNELS][TSTAMP_FP_WIDTH]

Specifies the fingerprint of the TX frame that the 96-bit timestamp is for.
tx_egress_timestamp_64b_valid Out [NUM_CHANNELS] When asserted, this signal qualifies the timestamp, tx_egress_timestamp_64b_data[], and the fingerprint, tx_egress_timestamp_64b_fingerprint[], of the TX frame.
tx_egress_timestamp_64b_data Out [NUM_CHANNELS][64] Carries the 64-bit egress timestamp in the following format:
  • Bits 16 to 63: 48-bit nanoseconds field
  • Bits 0 to 15: 16-bit fractional nanoseconds field
tx_egress_timestamp_64b_fingerprint Out [NUM_CHANNELS][TSTAMP_FP_WIDTH]

Specifies the fingerprint of the TX frame that the 64-bit timestamp is for.
rx_egress_timestamp_96b_valid Out [NUM_CHANNELS] When asserted, this signal qualifies the timestamp, rx_ingress_timestamp_96b_data[]. The MAC IP asserts this signal in the same clock cycle it asserts avalon_st_rx_startofpacket.
rx_egress_timestamp_96b_data Out [NUM_CHANNELS][96] Carries the 96-bit ingress timestamp in the following format:
  • Bits 48 to 95: 48-bit seconds field
  • Bits 16 to 47: 32-bit nanoseconds field
  • Bits 0 to 15: 16-bit fractional nanoseconds field
rx_egress_timestamp_64b_valid Out [NUM_CHANNELS] When asserted, this signal qualifies the timestamp, rx_ingress_timestamp_64b_data[]. The MAC IP asserts this signal in the same clock cycle it asserts avalon_st_rx_startofpacket.
rx_egress_timestamp_64b_data Out [NUM_CHANNELS][64] Carries the 64-bit ingress timestamp in the following format:
  • Bits 16 to 63: 48-bit nanoseconds field
  • Bits 0 to 15: 16-bit fractional nanoseconds field
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