H-Tile Hard IP Ethernet Intel® FPGA IP User Guide: Stratix® 10 Devices

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ID 683430
Date 4/09/2024
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Document Table of Contents
Document Table of Contents x
1. About the H-Tile Hard IP for Ethernet IP Core 2. Getting Started 3. H-Tile Hard IP for Ethernet Parameters 4. Functional Description 5. Reset 6. Interfaces and Signal Descriptions 7. Ethernet Toolkit Overview 8. H-Tile Hard IP for Ethernet IP User Guide Archives 9. Document Revision History for the H-Tile Hard IP for Ethernet Intel® FPGA IP User Guide: Stratix® 10 Devices A. Advanced RTL Parameters B. Ethernet Reconfiguration and Status Register Descriptions
1. About the H-Tile Hard IP for Ethernet IP Core x
1.1. IP Core Supported Features 1.2. IP Core Device Family and Speed Grade Support 1.3. IP Core Verification 1.4. Resource Utilization 1.5. Release Information
1.2. IP Core Device Family and Speed Grade Support x
1.2.1. H-Tile Hard IP for Ethernet IP Core Device Family Support 1.2.2. H-Tile Hard IP for Ethernet IP Core Device Speed Grade Support
1.3. IP Core Verification x
1.3.1. Simulation Environment 1.3.2. Compilation Checking 1.3.3. Hardware Testing
2. Getting Started x
2.1. Installing and Licensing Intel® FPGA IP Cores 2.2. Specifying the IP Core Parameters and Options 2.3. Generated File Structure 2.4. Integrating Your IP Core in Your Design 2.5. IP Core Testbenches 2.6. Compiling the Full Design and Programming the FPGA
2.4. Integrating Your IP Core in Your Design x
2.4.1. Channel Placement 2.4.2. Pin Assignments 2.4.3. Adding the Transceiver PLLs 2.4.4. Clock Requirements 2.4.5. Placement Settings for the H-Tile Hard IP for Ethernet IP Core
2.4.4. Clock Requirements x
2.4.4.1. Clock Connection Requirements
3. H-Tile Hard IP for Ethernet Parameters x
3.1. Parameter Editor Parameters 3.2. RTL Parameters
4. Functional Description x
4.1. High Level System Overview 4.2. H-Tile Hard IP for Ethernet IP Core MAC Interface 4.3. H-Tile Hard IP for Ethernet IP PCS Only/PCS66 Interface 4.4. Auto-Negotiation and Link Training
4.2. H-Tile Hard IP for Ethernet IP Core MAC Interface x
4.2.1. H-Tile Hard IP for Ethernet IP Core TX Datapath 4.2.2. H-Tile Hard IP for Ethernet IP Core RX Datapath 4.2.3. Congestion and Flow Control Using PAUSE or Priority Flow Control (PFC) 4.2.4. Pause Control and Generation Interface 4.2.5. Pause Control Frame Filtering 4.2.6. Link Fault Signaling 4.2.7. Statistics Counters Interface 4.2.8. Order of Ethernet Transmission
4.2.1. H-Tile Hard IP for Ethernet IP Core TX Datapath x
4.2.1.1. Preamble, Start, and SFD Insertion 4.2.1.2. Length/Type Field Processing 4.2.1.3. Frame Padding 4.2.1.4. Frame Check Sequence (CRC-32) Insertion 4.2.1.5. Inter-Packet Gap Generation and Insertion
4.2.2. H-Tile Hard IP for Ethernet IP Core RX Datapath x
4.2.2.1. H-Tile Hard IP for Ethernet IP Core RX Filtering 4.2.2.2. H-Tile Hard IP for Ethernet IP Core Preamble Processing 4.2.2.3. IP Core Strict SFD Checking 4.2.2.4. RX FCS Checking 4.2.2.5. RX Malformed Packet Handling 4.2.2.6. Removing PAD Bytes and FCS Bytes from RX Frames 4.2.2.7. RX Undersized Frames, Oversized Frames, and Frames with Length Errors 4.2.2.8. Inter-Packet Gap
4.2.3. Congestion and Flow Control Using PAUSE or Priority Flow Control (PFC) x
4.2.3.1. Conditions Triggering XOFF Frame Transmission 4.2.3.2. Conditions Triggering XON Frame Transmission
4.2.7. Statistics Counters Interface x
4.2.7.1. Statistic Counters Rollover Limitations
4.3. H-Tile Hard IP for Ethernet IP PCS Only/PCS66 Interface x
4.3.1. TX PCS and RX PCS Datapath
6. Interfaces and Signal Descriptions x
6.1. TX MAC Interface to User Logic 6.2. RX MAC Interface to User Logic 6.3. TX PCS Interface to User Logic 6.4. RX PCS Interface to User Logic 6.5. FlexE and OTN Mode TX Interface 6.6. FlexE and OTN Mode RX Interface 6.7. Ethernet Link and Transceiver Signals 6.8. Transceiver Reconfiguration Signals 6.9. Ethernet Reconfiguration Interface 6.10. Miscellaneous Status and Debug Signals 6.11. Reset Signals 6.12. Clocks
6.8. Transceiver Reconfiguration Signals x
6.8.1. Disabling Background Calibration
7. Ethernet Toolkit Overview x
7.1. Features
B. Ethernet Reconfiguration and Status Register Descriptions x
B.1. Auto-Negotiation and Link Training Registers B.2. PHY Registers B.3. TX MAC Registers B.4. RX MAC Registers B.5. Pause and Priority- Based Flow Control Registers B.6. TX Statistics Counter Registers B.7. RX Statistics Counter Registers
B.1. Auto-Negotiation and Link Training Registers x
B.1.1. ANLT Sequencer Config B.1.2. ANLT Sequencer Status B.1.3. Auto-Negotiation Config Register 1 B.1.4. Auto-Negotiation Config Register 2 B.1.5. Auto-Negotiation Status Register B.1.6. Auto Negotiation Config Register 3 B.1.7. Auto-Negotiation Config Register 4 B.1.8. Auto-Negotiation Config Register 5 B.1.9. Auto-Negotiation Config Register 6 B.1.10. Auto-Negotiation Status Register 1 B.1.11. Auto-Negotiation Status Register 2 B.1.12. Auto-Negotiation Status Register 3 B.1.13. Auto-Negotiation Status Register 4 B.1.14. Auto-Negotiation Status Register 5 B.1.15. Consortium Next Page Override B.1.16. Consortium Next Page Link Partner Status B.1.17. Link Training Config Register 1 B.1.18. Link Training Config Register 2 B.1.19. Link Training Status Register 1 B.1.20. Link Training Config Register for Lane 0 B.1.21. Link Training Frame Contents for Lane 0 B.1.22. Local Transceiver TX EQ 1 Settings for Lane 0 B.1.23. Local Transceiver TX EQ 2 Settings for Lane 0 B.1.24. Local Link Training Parameters B.1.25. Link Training Config Register for Lane 1 B.1.26. Link Training Frame Contents for Lane 1 B.1.27. Local Transceiver TX EQ 1 Settings for Lane 1 B.1.28. Local Transceiver TX EQ 2 Settings for Lane 1 B.1.29. Link Training Config Register for Lane 2 B.1.30. Link Training Frame Contents for Lane 2 B.1.31. Local Transceiver TX EQ 1 Settings for Lane 2 B.1.32. Local Transceiver TX EQ 2 Settings for Lane 2 B.1.33. Link Training Config Register for Lane 3 B.1.34. Link Training Frame Contents for Lane 3 B.1.35. Local Transceiver TX EQ 1 Settings for Lane 3 B.1.36. Local Transceiver TX EQ 2 Settings for Lane 3
B.2. PHY Registers x
B.2.1. PHY Module Revision ID B.2.2. PHY Scratch Register B.2.3. PHY Configuration B.2.4. PMA Serial Loopback B.2.5. TX PLL Locked B.2.6. RX CDR PLL Locked B.2.7. TX Datapath Ready B.2.8. Frame Errors Detected B.2.9. Clear Frame Errors B.2.10. Reset Registers B.2.11. RX PCS Status for AN/LT B.2.12. PCS Error Injection B.2.13. Alignment Marker Lock B.2.14. BER Count B.2.15. PCS Virtual Lane 0 B.2.16. PCS Virtual Lane 1 B.2.17. PCS Virtual Lane 2 B.2.18. PCS Virtual Lane 3 B.2.19. Recovered Clock Frequency in KHz B.2.20. TX Clock Frequency in KHz
B.3. TX MAC Registers x
B.3.1. TX MAC Module Revision ID B.3.2. TX MAC Scratch Register B.3.3. Reserved B.3.4. Link Fault Configuration B.3.5. IPG Words to remove per Alignment Marker Period B.3.6. Maximum TX Frame Size B.3.7. TX MAC Configuration B.3.8. EHIP TX MAC Feature Configuration B.3.9. TX MAC Source Address Lower Bytes B.3.10. TX MAC Source Address Higher Bytes
B.4. RX MAC Registers x
B.4.1. RX MAC Module Revision ID B.4.2. RX MAC Scratch Register B.4.3. Reserved B.4.4. Maximum RX Frame Size B.4.5. RX CRC Forwarding B.4.6. Link Fault Status B.4.7. RX MAC Configuration B.4.8. EHIP RX MAC Feature Configuration
B.5. Pause and Priority- Based Flow Control Registers x
B.5.1. TXSFC Module Revision ID B.5.2. TX SFC Scratch Register B.5.3. Reserved B.5.4. Enable TX Pause Ports B.5.5. TX Pause Request B.5.6. Enable Automatic TX Pause Retransmission B.5.7. Retransmit Holdoff Quanta B.5.8. Retransmit Pause Quanta B.5.9. Enable TX XOFF B.5.10. Enable Uniform Holdoff B.5.11. Set Uniform Holdoff B.5.12. Lower 4 bytes of the Destination address for Flow Control B.5.13. Higher 2 bytes of the Destination address for Flow Control B.5.14. Lower 4 bytes of the Source address for Flow Control frames B.5.15. Higher 2 bytes of the Source address for Flow Control frames B.5.16. TX Flow Control Feature Configuration B.5.17. Pause Quanta 0 B.5.18. Pause Quanta 1 B.5.19. Pause Quanta 2 B.5.20. Pause Quanta 3 B.5.21. Pause Quanta 4 B.5.22. Pause Quanta 5 B.5.23. Pause Quanta 6 B.5.24. Pause Quanta 7 B.5.25. PFC Holdoff Quanta 0 B.5.26. PFC Holdoff Quanta 1 B.5.27. PFC Holdoff Quanta 2 B.5.28. PFC Holdoff Quanta 3 B.5.29. PFC Holdoff Quanta 4 B.5.30. PFC Holdoff Quanta 5 B.5.31. PFC Holdoff Quanta 6 B.5.32. PFC Holdoff Quanta 7 B.5.33. RXSFC Module Revision ID B.5.34. RXSFC Scratch Register B.5.35. Reserved B.5.36. Enable RX Pause Frame Processing B.5.37. Forward Flow Control Frames B.5.38. Lower 4 bytes of the Destination address for RX Pause Frames B.5.39. Higher 2 bytes of the Destination address for RX Pause Frames
B.6. TX Statistics Counter Registers x
B.6.1. TX Frames less than 64 bytes with CRC error (lower 32 bits) B.6.2. TX Frames less than 64 bytes with CRC error (upper 32 bits) B.6.3. Oversized TX frames with CRC error (lower 32 bits) B.6.4. Oversized TX frames with CRC error (upper 32 bits) B.6.5. TX Frames of any size with a CRC error (lower 32 bits) B.6.6. TX Frames of any size with a CRC error (upper 32 bits) B.6.7. TX Frames of any size with a CRC error on OK packet (lower 32 bits) B.6.8. TX Frames of any size with a CRC error on OK packet (upper 32 bits) B.6.9. Multicast TX data frames with CRC error (lower 32 bits) B.6.10. Multicast TX data frames with CRC error (upper 32 bits) B.6.11. Broadcast TX data frames with CRC error (lower 32 bits) B.6.12. Broadcast TX data frames with CRC error (upper 32 bits) B.6.13. Unicast TX data frames with CRC error (lower 32 bits) B.6.14. Unicast TX data frames with CRC error (upper 32 bits) B.6.15. Multicast TX control frames with CRC error (lower 32 bits) B.6.16. Multicast TX control frames with CRC error (upper 32 bits) B.6.17. Broadcast TX control frames with CRC error (lower 32 bits) B.6.18. Broadcast TX control frames with CRC error (upper 32 bits) B.6.19. Unicast TX control frames with CRC error (lower 32 bits) B.6.20. Unicast TX control frames with CRC error (upper 32 bits) B.6.21. TX Pause frame with CRC error (lower 32 bits) B.6.22. TX Pause frame with CRC error (upper 32 bits) B.6.23. 64 byte TX frames (lower 32 bits) B.6.24. 64 byte TX frames (upper 32 bits) B.6.25. 65 to 127 byte TX frames (lower 32 bits) B.6.26. 65 to 127 byte TX frames (upper 32 bits) B.6.27. 128 to 257 byte TX frames (lower 32 bits) B.6.28. 128 to 257 byte TX frames (upper 32 bits) B.6.29. 256 to 511 byte TX frames (lower 32 bits) B.6.30. 256 to 511 byte TX frames (upper 32 bits) B.6.31. 512 to 1023 byte TX frames (lower 32 bits) B.6.32. 512 to 1023 byte TX frames (upper 32 bits) B.6.33. 1024 to 1518 byte TX frames (lower 32 bits) B.6.34. 1024 to 1518 byte TX frames (upper 32 bits) B.6.35. 1519 to max size TX frames (lower 32 bits) B.6.36. 1519 to max size TX frames (upper 32 bits) B.6.37. Oversize TX frames (lower 32 bits) B.6.38. Oversize TX frames (upper 32 bits) B.6.39. Multicast TX data frames without error (lower 32 bits) B.6.40. Multicast TX data frames without error (upper 32 bits) B.6.41. Broadcast TX data frames without error (lower 32 bits) B.6.42. Broadcast TX data frames without error (upper 32 bits) B.6.43. Unicast TX data frames without error (lower 32 bits) B.6.44. Unicast TX data frames without error (upper 32 bits) B.6.45. Multicast TX control frames without error (lower 32 bits) B.6.46. Multicast TX control frames without error (upper 32 bits) B.6.47. Broadcast TX control frames without error (lower 32 bits) B.6.48. Broadcast TX control frames without error (upper 32 bits) B.6.49. Unicast TX control frames without error (lower 32 bits) B.6.50. Unicast TX control frames without error (upper 32 bits) B.6.51. TX Pause frames without error (lower 32 bits) B.6.52. TX Pause frames without error (upper 32 bits) B.6.53. TX Frames with less than 64 bytes and a CRC error (lower 32 bits) B.6.54. TX Frames with less than 64 bytes and a CRC error (upper 32 bits) B.6.55. Number of TX frame starts (lower 32 bits) B.6.56. Number of TX frame starts (upper 32 bits) B.6.57. Number of TX length errors (lower 32 bits) B.6.58. Number of TX length errors (upper 32 bits) B.6.59. TX PFC frame with CRC error (lower 32 bits) B.6.60. TX PFC frame with CRC error (upper 32 bits) B.6.61. TX PFC frames without error (lower 32 bits) B.6.62. TX PFC frames without error (upper 32 bits) B.6.63. TXSTAT Module Revision ID B.6.64. TXSTAT Scratch Register B.6.65. Reserved B.6.66. Configure TX Statistics Counters B.6.67. TX Statistics Counter Status B.6.68. TX Payload bytes with no errors (lower 32 bits) B.6.69. TX Payload bytes with no errors (upper 32 bits) B.6.70. TX Frame bytes with no errors (lower 32 bits) B.6.71. TX Frame bytes with no errors (upper 32 bits) B.6.72. TX Malformed frames (lower 32 bits) B.6.73. TX Malformed frames (upper 32 bits) B.6.74. TX Packets that were dropped due to error (lower 32 bits) B.6.75. TX Packets that were dropped due to error (upper 32 bits) B.6.76. TX Frames with bad length/type field (lower 32 bits) B.6.77. TX Frames with bad length/type field (upper 32 bits)
B.7. RX Statistics Counter Registers x
B.7.1. RX Frames less than 64 bytes with CRC error (lower 32 bits) B.7.2. RX Frames less than 64 bytes with CRC error (upper 32 bits) B.7.3. Oversized RX frames with CRC error (lower 32 bits) B.7.4. Oversized RX frames with CRC error (upper 32 bits) B.7.5. RX Frames of any size with a CRC error (lower 32 bits) B.7.6. RX Frames of any size with a CRC error (upper 32 bits) B.7.7. RX Frames of any size with a CRC error on OK packet (lower 32 bits) B.7.8. RX Frames of any size with a CRC error on OK packet (upper 32 bits) B.7.9. Multicast RX data frames with CRC error (lower 32 bits) B.7.10. Multicast RX data frames with CRC error (upper 32 bits) B.7.11. Broadcast RX data frames with CRC error (lower 32 bits) B.7.12. Broadcast RX data frames with CRC error (upper 32 bits) B.7.13. Unicast RX data frames with CRC error (lower 32 bits) B.7.14. Unicast RX data frames with CRC error (upper 32 bits) B.7.15. Multicast RX control frames with CRC error (lower 32 bits) B.7.16. Multicast RX control frames with CRC error (upper 32 bits) B.7.17. Broadcast RX control frames with CRC error (lower 32 bits) B.7.18. Broadcast RX control frames with CRC error (upper 32 bits) B.7.19. Unicast RX control frames with CRC error (lower 32 bits) B.7.20. Unicast RX control frames with CRC error (upper 32 bits) B.7.21. RX Pause frame with CRC error (lower 32 bits) B.7.22. RX Pause frame with CRC error (upper 32 bits) B.7.23. 64 byte RX frames (lower 32 bits) B.7.24. 64 byte RX frames (upper 32 bits) B.7.25. 65 to 127 byte RX frames (lower 32 bits) B.7.26. 65 to 127 byte RX frames (upper 32 bits) B.7.27. 128 to 257 byte RX frames (lower 32 bits) B.7.28. 128 to 257 byte RX frames (upper 32 bits) B.7.29. 256 to 511 byte RX frames (lower 32 bits) B.7.30. 256 to 511 byte RX frames (upper 32 bits) B.7.31. 512 to 1023 byte RX frames (lower 32 bits) B.7.32. 512 to 1023 byte RX frames (upper 32 bits) B.7.33. 1024 to 1518 byte RX frames (lower 32 bits) B.7.34. 1024 to 1518 byte RX frames (upper 32 bits) B.7.35. 1519 to max size RX frames (lower 32 bits) B.7.36. 1519 to max size RX frames (upper 32 bits) B.7.37. Oversize RX frames (lower 32 bits) B.7.38. Oversize RX frames (upper 32 bits) B.7.39. Multicast RX data frames without error (lower 32 bits) B.7.40. Multicast RX data frames without error (upper 32 bits) B.7.41. Broadcast RX data frames without error (lower 32 bits) B.7.42. Broadcast RX data frames without error (upper 32 bits) B.7.43. Unicast RX data frames without error (lower 32 bits) B.7.44. Unicast RX data frames without error (upper 32 bits) B.7.45. Multicast RX control frames without error (lower 32 bits) B.7.46. Multicast RX control frames without error (upper 32 bits) B.7.47. Broadcast RX control frames without error (lower 32 bits) B.7.48. Broadcast RX control frames without error (upper 32 bits) B.7.49. Unicast RX control frames without error (lower 32 bits) B.7.50. Unicast RX control frames without error (upper 32 bits) B.7.51. RX Pause frames without error (lower 32 bits) B.7.52. RX Pause frames without error (upper 32 bits) B.7.53. RX Frames with less than 64 bytes and a CRC error (lower 32 bits) B.7.54. RX Frames with less than 64 bytes and a CRC error (upper 32 bits) B.7.55. Number of RX frame starts (lower 32 bits) B.7.56. Number of RX frame starts (upper 32 bits) B.7.57. Number of RX length errors (lower 32 bits) B.7.58. Number of RX length errors (upper 32 bits) B.7.59. RX PFC frame with CRC error (lower 32 bits) B.7.60. RX PFC frame with CRC error (upper 32 bits) B.7.61. RX PFC frames without error (lower 32 bits) B.7.62. RX PFC frames without error (upper 32 bits) B.7.63. RXSTAT Module Revision ID B.7.64. RXSTAT Scratch Register B.7.65. Reserved B.7.66. Reserved B.7.67. Reserved B.7.68. Configure RX Statistics Counters B.7.69. RX Statistics Counter Status B.7.70. RX Payload bytes with no errors (lower 32 bits) B.7.71. RX Payload bytes with no errors (upper 32 bits) B.7.72. RX Frame bytes with no errors (lower 32 bits) B.7.73. RX Frame bytes with no errors (upper 32 bits) B.7.74. RX Malformed frames (lower 32 bits) B.7.75. RX Malformed frames (upper 32 bits) B.7.76. RX Packets that were dropped due to error (lower 32 bits) B.7.77. RX Packets that were dropped due to error (upper 32 bits) B.7.78. RX Frames with bad length/type field (lower 32 bits) B.7.79. RX Frames with bad length/type field (upper 32 bits)
1. About the H-Tile Hard IP for Ethernet IP Core
2. Getting Started
3. H-Tile Hard IP for Ethernet Parameters
4. Functional Description
5. Reset
6. Interfaces and Signal Descriptions
7. Ethernet Toolkit Overview
8. H-Tile Hard IP for Ethernet IP User Guide Archives
9. Document Revision History for the H-Tile Hard IP for Ethernet Intel® FPGA IP User Guide: Stratix® 10 Devices
A. Advanced RTL Parameters
B. Ethernet Reconfiguration and Status Register Descriptions

4.2.1.5. Inter-Packet Gap Generation and Insertion

If you set Average Inter-packet Gap to 12 in the H-Tile Hard IP for Ethernet IP parameter editor, the TX MAC maintains the minimum inter-packet gap (IPG) between transmitted frames required by the IEEE 802.3 Ethernet standard. The standard requires an average minimum IPG of 96 bit times (or 12 byte times). The MAC uses a deficit idle counter to allow the actual gap between frames to vary as needed to meet the maximum throughput requirements of the link.

If you set Average Inter-packet Gap to 10 or 8, the TX MAC maintains a minimum average IPG of 10 or 8 bytes accordingly. This option is provided as an intermediate option to allow you to enforce an IPG that does not conform to the Ethernet standard, but which increases the throughput of your IP core.

If you set Average Inter-packet Gap to 1, the IP core transmits Ethernet packets as soon as the data is available, with the minimum possible gap. The IPG depends on the space you leave between frame data as you write it to the core. If you select this parameter value, the core will no longer comply with the Ethernet standard, but your application will have control over the average gap and throughput can be maximized. For a packet of size (P) bytes, the number of idles bytes (G) inserted after is specified by the following formula G=8-(P%8). A few examples are depicted below:
Packet Size (P) Gap Idle Bytes (G)
64 8
65 7
66 6
67 5
68 4
69 3
70 2
71 1
72 8

The TX MAC also supports inter-packet gap reduction in increments of 3 ppm, using the Additional IPG removed per AM period parameter or dynamically set through the ipg_col_rem register.

Note: The inter-packet gap generation and insertion feature is only available for MAC + PCS IP core variation.
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