F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide

Download PDF
ID 741328
Date 10/07/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide 2. About F-Tile Triple-Speed Ethernet Intel® FPGA IP 3. Getting Started 4. Parameter Settings 5. Functional Description 6. Configuration Register Space 7. Interface Signals 8. Design Considerations 9. Timing Constraints 10. Software Programming Interface 11. F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide Archives 12. Document Revision History for the F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide A. Ethernet Frame Format B. Simulation Parameters
2. About F-Tile Triple-Speed Ethernet Intel® FPGA IP x
2.1. Release Information 2.2. Device Family Support 2.3. Features 2.4. 10/100/1000 Ethernet MAC Versus Small MAC 2.5. High-Level Block Diagrams 2.6. Example Applications 2.7. IP Verification 2.8. Performance and Resource Utilization
2.7. IP Verification x
2.7.1. Optical Platform 2.7.2. Copper Platform
3. Getting Started x
3.1. Introduction to Intel® FPGA IP Cores 3.2. Installing and Licensing Intel® FPGA IPs 3.3. Specifying the IP Core Parameters and Options 3.4. IP Core Generation Output 3.5. Simulating Intel® FPGA IP Cores
3.2. Installing and Licensing Intel® FPGA IPs x
3.2.1. Intel® FPGA IP Evaluation Mode
3.4. IP Core Generation Output x
3.4.1. Design Constraint File
4. Parameter Settings x
4.1. Core Configuration 4.2. Ethernet MAC Options 4.3. FIFO Options 4.4. Timestamp Options 4.5. PCS/Transceiver Options
5. Functional Description x
5.1. 10/100/1000 Ethernet MAC 5.2. 1000BASE-X/SGMII PCS With Optional Embedded PMA 5.3. Precision Time Protocol 5.4. Deterministic Latency
5.1. 10/100/1000 Ethernet MAC x
5.1.1. MAC Architecture 5.1.2. MAC Interfaces 5.1.3. MAC Transmit Datapath 5.1.4. MAC Receive Datapath 5.1.5. MAC Transmit and Receive Latencies 5.1.6. FIFO Buffer Thresholds 5.1.7. Congestion and Flow Control 5.1.8. Magic Packets 5.1.9. MAC Local Loopback 5.1.10. MAC Reset 5.1.11. PHY Management (MDIO) 5.1.12. Connecting MAC to External PHYs
5.1.3. MAC Transmit Datapath x
5.1.3.1. IP Payload Re-alignment 5.1.3.2. Address Insertion 5.1.3.3. Frame Payload Padding 5.1.3.4. CRC-32 Generation 5.1.3.5. Interpacket Gap Insertion 5.1.3.6. Collision Detection in Half-Duplex Mode
5.1.4. MAC Receive Datapath x
5.1.4.1. Preamble Processing 5.1.4.2. Collision Detection in Half-Duplex Mode 5.1.4.3. Address Checking 5.1.4.4. Frame Type Validation 5.1.4.5. Payload Pad Removal 5.1.4.6. CRC Checking 5.1.4.7. Length Checking 5.1.4.8. Frame Writing 5.1.4.9. IP Payload Alignment
5.1.4.3. Address Checking x
5.1.4.3.1. Unicast Address Checking 5.1.4.3.2. Multicast Address Resolution
5.1.6. FIFO Buffer Thresholds x
5.1.6.1. Receive Thresholds 5.1.6.2. Transmit Thresholds 5.1.6.3. Transmit FIFO Buffer Underflow
5.1.7. Congestion and Flow Control x
5.1.7.1. Remote Device Congestion 5.1.7.2. Receive FIFO Buffer and Local Device Congestion
5.1.8. Magic Packets x
5.1.8.1. Sleep Mode 5.1.8.2. Magic Packet Detection
5.1.11. PHY Management (MDIO) x
5.1.11.1. MDIO Connection 5.1.11.2. MDIO Frame Format
5.1.12. Connecting MAC to External PHYs x
5.1.12.1. Gigabit Ethernet 5.1.12.2. Programmable 10/100 Ethernet 5.1.12.3. Programmable 10/100/1000 Ethernet Operation
5.2. 1000BASE-X/SGMII PCS With Optional Embedded PMA x
5.2.1. 1000BASE-X/SGMII PCS Architecture 5.2.2. Transmit Operation 5.2.3. Receive Operation 5.2.4. Transmit and Receive Latencies 5.2.5. GMII Converter 5.2.6. SGMII Converter 5.2.7. Auto-Negotiation 5.2.8. Ten-bit Interface 5.2.9. 1000BASE-X/SGMII PCS Reset
5.2.2. Transmit Operation x
5.2.2.1. Frame Encapsulation 5.2.2.2. 8b/10b Encoding
5.2.3. Receive Operation x
5.2.3.1. Comma Detection 5.2.3.2. 8b/10b Decoding 5.2.3.3. Frame De-encapsulation 5.2.3.4. Synchronization 5.2.3.5. Carrier Sense 5.2.3.6. Collision Detection
5.2.6. SGMII Converter x
5.2.6.1. Transmit 5.2.6.2. Receive
5.2.7. Auto-Negotiation x
5.2.7.1. 1000BASE-X Auto-Negotiation 5.2.7.2. SGMII Auto-Negotiation
5.3. Precision Time Protocol x
5.3.1. IEEE 1588v2 Supported Configurations 5.3.2. IEEE 1588v2 Features 5.3.3. IEEE 1588v2 Architecture 5.3.4. IEEE 1588v2 Transmit Datapath 5.3.5. IEEE 1588v2 Receive Datapath 5.3.6. IEEE 1588v2 Frame Format
5.3.6. IEEE 1588v2 Frame Format x
5.3.6.1. PTP Frame in IEEE 802.3 5.3.6.2. PTP Frame over UDP/IPv4 5.3.6.3. PTP Frame over UDP/IPv6
6. Configuration Register Space x
6.1. MAC Configuration Register Space 6.2. PCS Configuration Register Space 6.3. Register Initialization
6.1. MAC Configuration Register Space x
6.1.1. Base Configuration Registers (Dword Offset 0x00 – 0x17) 6.1.2. Statistics Counters (Dword Offset 0x18 – 0x38) 6.1.3. Transmit and Receive Command Registers (Dword Offset 0x3A – 0x3B) 6.1.4. Supplementary Address (Dword Offset 0xC0 – 0xC7) 6.1.5. IEEE 1588v2 Feature (Dword Offset 0xD0 – 0xD6) 6.1.6. Deterministic Latency (Dword Offset 0xE1– 0xE3) 6.1.7. IEEE 1588v2 Feature PMA Delay
6.1.1. Base Configuration Registers (Dword Offset 0x00 – 0x17) x
6.1.1.1. Command_Config Register (Dword Offset 0x02)
6.2. PCS Configuration Register Space x
6.2.1. Control Register (Word Offset 0x00) 6.2.2. Status Register (Word Offset 0x01) 6.2.3. Dev_Ability and Partner_Ability Registers (Word Offset 0x04 – 0x05) 6.2.4. An_Expansion Register (Word Offset 0x06) 6.2.5. If_Mode Register (Word Offset 0x14)
6.2.3. Dev_Ability and Partner_Ability Registers (Word Offset 0x04 – 0x05) x
6.2.3.1. 1000BASE-X 6.2.3.2. SGMII MAC Mode Auto Negotiation 6.2.3.3. SGMII PHY Mode Auto Negotiation
6.3. Register Initialization x
6.3.1. Triple-Speed Ethernet System with MII/GMII 6.3.2. Triple-Speed Ethernet System with SGMII 6.3.3. Triple-Speed Ethernet System with 1000BASE-X Interface
7. Interface Signals x
7.1. Interface Signals 7.2. Timing
7.1. Interface Signals x
7.1.1. 10/100/1000 Ethernet MAC Signals 7.1.2. 10/100/1000 Multiport Ethernet MAC Signals 7.1.3. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII PCS Signals 7.1.4. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII 2XTBI PCS and Embedded PMA Signals (F-Tile) 7.1.5. 10/100/1000 Ethernet MAC Without Internal FIFO Buffers with 1000BASE-X/SGMII 2XTBI PCS Signals 7.1.6. 10/100/1000 Ethernet MAC Without Internal FIFO Buffers with IEEE 1588v2 , 1000BASE-X/SGMII 2XTBI PCS, and Embedded Serial PMA Signals 7.1.7. 10/100/1000 Multiport Ethernet MAC with 1000BASE-X/SGMII PCS Signals 7.1.8. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII PCS and Embedded PMA Signals 7.1.9. 10/100/1000 Multiport Ethernet MAC with 1000BASE-X/SGMII PCS and Embedded PMA Signals 7.1.10. 1000BASE-X/SGMII PCS Signals 7.1.11. 1000BASE-X/SGMII 2XTBI PCS Signals 7.1.12. 1000BASE-X/SGMII PCS and PMA Signals
7.1.1. 10/100/1000 Ethernet MAC Signals x
7.1.1.1. Clock and Reset Signals 7.1.1.2. Clock Enabler Signals 7.1.1.3. MAC Control Interface Signals 7.1.1.4. MAC Status Signals 7.1.1.5. MAC Receive Interface Signals 7.1.1.6. MAC Transmit Interface Signals 7.1.1.7. Pause and Magic Packet Signals 7.1.1.8. MII/GMII/RGMII Signals 7.1.1.9. PHY Management Signals 7.1.1.10. ECC Status Signals
7.1.2. 10/100/1000 Multiport Ethernet MAC Signals x
7.1.2.1. Multiport MAC Clock and Reset Signals 7.1.2.2. Multiport MAC Receive Interface Signals 7.1.2.3. Multiport MAC Transmit Interface Signals 7.1.2.4. Multiport MAC Packet Classification Signals 7.1.2.5. Multiport MAC FIFO Status Signals
7.1.3. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII PCS Signals x
7.1.3.1. TBI Interface Signals 7.1.3.2. Status LED Control Signals 7.1.3.3. SERDES Control Signals 7.1.3.4. ECC Status Signals
7.1.4. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII 2XTBI PCS and Embedded PMA Signals (F-Tile) x
7.1.4.1. GMII Clock Signals 7.1.4.2. F-Tile Transceiver Direct PHY Signals
7.1.6. 10/100/1000 Ethernet MAC Without Internal FIFO Buffers with IEEE 1588v2 , 1000BASE-X/SGMII 2XTBI PCS, and Embedded Serial PMA Signals x
7.1.6.1. Deterministic Latency Clock Signals 7.1.6.2. IEEE 1588v2 RX Timestamp Signals 7.1.6.3. IEEE 1588v2 TX Timestamp Signals 7.1.6.4. IEEE 1588v2 TX Timestamp Request Signals 7.1.6.5. IEEE 1588v2 TX Insert Control Timestamp Signals 7.1.6.6. IEEE 1588v2 Time-of-Day (TOD) Clock Interface Signals 7.1.6.7. IEEE 1588v2 PCS Phase Measurement Clock Signal
7.1.8. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII PCS and Embedded PMA Signals x
7.1.8.1. 1.25 Gbps Serial Interface 7.1.8.2. Transceiver Native PHY Signal 7.1.8.3. Altera LVDS Transmitter and Receiver Soft-CDR I/O Signals
7.1.10. 1000BASE-X/SGMII PCS Signals x
7.1.10.1. PCS Control Interface Signals 7.1.10.2. PCS Reset Signals 7.1.10.3. MII/GMII Clocks and Clock Enablers 7.1.10.4. GMII 7.1.10.5. MII 7.1.10.6. SGMII Status Signals
7.1.11. 1000BASE-X/SGMII 2XTBI PCS Signals x
7.1.11.1. Clock Enablers 7.1.11.2. PCS Reset Signals 7.1.11.3. TBI Interface Signals
7.2. Timing x
7.2.1. Avalon Streaming Receive Interface 7.2.2. Avalon Streaming Transmit Interface 7.2.3. GMII Transmit 7.2.4. GMII Receive 7.2.5. RGMII Transmit 7.2.6. RGMII Receive 7.2.7. MII Transmit 7.2.8. MII Receive 7.2.9. IEEE 1588v2 Timestamp
8. Design Considerations x
8.1. Optimizing Clock Resources in Multiport MAC with PCS and Embedded PMA 8.2. Sharing PLLs in Devices with LVDS Soft-CDR I/O 8.3. Exposed Ports in the New User Interface 8.4. Clocking Scheme of MAC with 2XTBI PCS and Embedded PMA
8.1. Optimizing Clock Resources in Multiport MAC with PCS and Embedded PMA x
8.1.1. MAC and PCS With LVDS Soft-CDR I/O
9. Timing Constraints x
9.1. Creating Clock Constraints 9.2. Recommended Clock Frequency
10. Software Programming Interface x
10.1. Driver Architecture 10.2. Directory Structure 10.3. PHY Definition 10.4. Using Multiple SG-DMA Descriptors 10.5. Using Jumbo Frames 10.6. API Functions 10.7. Constants
10.6. API Functions x
10.6.1. alt_tse_mac_get_common_speed() 10.6.2. alt_tse_mac_set_common_speed() 10.6.3. alt_tse_phy_add_profile() 10.6.4. alt_tse_system_add_sys() 10.6.5. triple_speed_ethernet_init() 10.6.6. tse_mac_close() 10.6.7. tse_mac_raw_send() 10.6.8. tse_mac_setGMII mode() 10.6.9. tse_mac_setMIImode() 10.6.10. tse_mac_SwReset()
A. Ethernet Frame Format x
A.1. Basic Frame Format A.2. VLAN and Stacked VLAN Frame Format A.3. Pause Frame Format
A.3. Pause Frame Format x
A.3.1. Pause Frame Generation
B. Simulation Parameters x
B.1. Functionality Configuration Parameters B.2. Test Configuration Parameters
1. About the F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide
2. About F-Tile Triple-Speed Ethernet Intel® FPGA IP
3. Getting Started
4. Parameter Settings
5. Functional Description
6. Configuration Register Space
7. Interface Signals
8. Design Considerations
9. Timing Constraints
10. Software Programming Interface
11. F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide Archives
12. Document Revision History for the F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide
A. Ethernet Frame Format
B. Simulation Parameters

5.4. Deterministic Latency

The Deterministic Latency (DL) term used across this document refers to the ability to precisely determine the delay between the elastic FIFO (EFIFO) and the PMA pins.

The deterministic latency measurement methodology is based on the concept of measuring the time when a given word is at the interface to the PMA and when that same word is at the FPGA core. The difference in time between these two events, when added to the PMA propagation delay, determines the total latency between the FPGA core and the serial pins. Such a calculation intrinsically includes all delays due to intermediate logic, FIFOs, and all other effects.

Figure 43. Deterministic Latency High Level Block Diagram
You must turn on Enable timestamping and Enable F-Tile transceiver dynamic reconfiguration (System Clock Mode) for F-Tile device options to enable the DL feature.
Note: Deterministic latency feature is only supported on 10/100/1000Mb Ethernet MAC without internal FIFO with 1000BASE-X/SGMII 2XTBI PCS variant.
Table 27.  Deterministic Latency Parameter Description for Triple-Speed Ethernet This table shows parameter description for the deterministic latency measurement for Triple-Speed Ethernet use case.
Item Value Description
sampling_clk period 4.375 ns Period for sampling clock (i_dl_sampling_clk) of 228.571429 MHz.
UI period 0.8 ns Period for unit interval.
parallel_clk 20 UI Period for 1 parallel clock cycle.
tx_delay (TxDL) Read from EFIFO-DL register 0xE2[20:0]

TX delay value in sampling_clk cycles, fixed point format Q13.8.

Bit [20:8] is integer, bit [7:0] is fractional number.

For example, tx_delay = 0x27F4,

Bit [20:8] = 0x27 = 39

Bit [7:0] = 0xF4 = 0.953125

Hence, tx_delay = 39.953125 clock cycles.

rx_delay (RxDL) Read from EFIFO-DL register 0xE3[20:0]

RX delay value in the sampling_clk cycles, fixed point format Q13.8.

Bit [20:8] is integer, bit [7:0] is fractional number.

For example, rx_delay = 0x27F4,

Bit [20:8] = 0x27 = 39

Bit [7:0] = 0xF4 = 0.953125

Hence, tx_delay = 39.953125 clock cycles.

Table 28.  Deterministic Latency Measurement for Triple-Speed Ethernet This table shows the TX and RX latency calculations for the 1G and 100M variants.
Variant TX Latency (ns) RX Latency (ns)
1G/100M TxDL * (sampling_clock period in ns)/(2^8) RxDL * (sampling_clock period in ns)/(2^8)
Note:
  1. Read TX/RX DL values from DL soft registers 0xE2 and 0xE3 respectively and calculate TX/RX latency.
  2. Convert the TX and RX latency to 16 bits nanosecond and 16 bits fractional nanosecond format by multiplying them by 216 or 65536.
  3. Calculate the sum of the latency values and the TX/RX PMA delay values (In nanoseconds and fractional nanoseconds).
  4. Program the calculated 16 bits values to Triple-Speed Ethernet register.
    1. Program lower 16 bits TX latency values to TSE MAC register 0xD1, which is the TX fns value.
    2. Program upper 16 bits TX latency values to TSE MAC register 0xD2, which is the TX ns value.
    3. Program lower 16 bits RX latency values to TSE MAC register 0xD4, which is the RX fns value.
    4. Program upper 16 bits RX latency values to TSE MAC register 0xD5, which is the RX ns value.
Related Information
Level Two Title