F-tile Architecture and PMA and FEC Direct PHY IP User Guide

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ID 683872
Date 4/03/2023
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Document Table of Contents
Document Table of Contents x
1. F-tile Overview 2. F-tile Architecture 3. Implementing the F-Tile PMA/FEC Direct PHY Intel® FPGA IP 4. Implementing the F-Tile Reference and System PLL Clocks Intel® FPGA IP 5. Implementing the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP 6. F-tile PMA/FEC Direct PHY Design Implementation 7. Supported Tools 8. Debugging F-Tile Transceiver Links 9. F-tile Architecture and PMA and FEC Direct PHY IP User Guide Archives 10. Document Revision History for F-tile Architecture and PMA and FEC Direct PHY IP User Guide
2. F-tile Architecture x
2.1. F-Tile Building Blocks 2.2. F-Tile Placement Rules 2.3. PMA Architecture 2.4. Clock Architecture
2.1. F-Tile Building Blocks x
2.1.1. FHT and FGT PMAs 2.1.2. 400G Hard IP and 200G Hard IP 2.1.3. PMA Data Rates 2.1.4. FEC Architecture 2.1.5. PCIe* Hard IP 2.1.6. Bonding Architecture 2.1.7. Deskew Logic 2.1.8. Embedded Multi-die Interconnect Bridge (EMIB) 2.1.9. IEEE 1588 Precision Time Protocol for Ethernet 2.1.10. Clock Networks 2.1.11. Reconfiguration Interfaces
2.2. F-Tile Placement Rules x
2.2.1. PMA-to-Fracture Mapping 2.2.2. Determining Which PMA to Map to Which Fracture 2.2.3. Hard IP Placement Rules 2.2.4. IEEE 1588 Precision Time Protocol Placement Rules 2.2.5. Topologies 2.2.6. FEC Placement Rules 2.2.7. Clock Rules and Restrictions 2.2.8. Bonding Placement Rules 2.2.9. Preserving Unused PMA Lanes
2.2.1. PMA-to-Fracture Mapping x
2.2.1.1. FHT-PMA-to-400G-Hard-IP-Fracture Mapping 2.2.1.2. FGT-PMA-to-400G-Hard-IP-Fracture Mapping 2.2.1.3. FGT-PMA-to-200G-Hard-IP-Fracture Mapping
2.2.2. Determining Which PMA to Map to Which Fracture x
2.2.2.1. Implementing One 200GbE-4 Interface with 400G Hard IP and FHT 2.2.2.2. Implementing One 200GbE-2 Interface with 400G Hard IP and FHT 2.2.2.3. Implementing One 100GbE-1 Interface with 400G Hard IP and FHT 2.2.2.4. Implementing One 100GbE-4 Interface with 400G Hard IP and FGT 2.2.2.5. Implementing One 10GbE-1 Interface with 200G Hard IP and FGT 2.2.2.6. Implementing Three 25GbE-1 Interfaces with 400G Hard IP and FHT 2.2.2.7. Implementing One 50GbE-1 and Two 25GbE-1 Interfaces with 400G Hard IP and FHT 2.2.2.8. Implementing One 100GbE-1 and Two 25GbE-1 Interfaces with 400G Hard IP and FHT 2.2.2.9. Implementing Two 100GbE-1 and One 25GbE-1 Interfaces with 400G Hard IP and FHT 2.2.2.10. Implementing 100GbE-1, 100GbE-2, and 50GbE-1 Interfaces with 400G Hard IP and FHT
2.2.5. Topologies x
2.2.5.1. Topology 5: 400G Hard IP (FHT) + 200G Hard IP (FGT) Example 2.2.5.2. Topology 6a: 400G Hard IP with Mixed Transceiver Mode Example 2.2.5.3. Topology 14: 1x PCIe x4 + 400G Hard IP (FGT) with PTP Example
2.2.8. Bonding Placement Rules x
2.2.8.1. Bonded Lanes Use Case 1 2.2.8.2. Bonded Lanes Use Case 2
2.3. PMA Architecture x
2.3.1. FHT PMA Architecture 2.3.2. FGT PMA Architecture
2.3.1. FHT PMA Architecture x
2.3.1.1. FHT Transmitter PMA Architecture 2.3.1.2. FHT Receiver PMA Architecture 2.3.1.3. FHT PMA Loopback Modes
2.3.1.1. FHT Transmitter PMA Architecture x
2.3.1.1.1. FHT Transmitter Buffer and Phase Generator 2.3.1.1.2. FHT Serializer 2.3.1.1.3. FHT Gray-Coder and Pre-Coder 2.3.1.1.4. FHT Data Pattern Generator and Verifier
2.3.1.2. FHT Receiver PMA Architecture x
2.3.1.2.1. FHT Receiver Buffer and Equalizer 2.3.1.2.2. CDR Block 2.3.1.2.3. FHT Deserializer
2.3.2. FGT PMA Architecture x
2.3.2.1. FGT Transmitter PMA Architecture 2.3.2.2. FGT Receiver PMA Architecture 2.3.2.3. FGT PMA Tuning 2.3.2.4. FGT PMA Loopback Modes
2.3.2.1. FGT Transmitter PMA Architecture x
2.3.2.1.1. FGT Transmitter Buffer and Phase Generator 2.3.2.1.2. FGT Serializer 2.3.2.1.3. FGT Gray-Coder and Pre-Coder 2.3.2.1.4. FGT Data Pattern Generator and Verifier
2.3.2.2. FGT Receiver PMA Architecture x
2.3.2.2.1. FGT Receiver Buffer and Equalizer 2.3.2.2.2. Control Unit 2.3.2.2.3. FGT Deserializer
2.4. Clock Architecture x
2.4.1. Reference Clock Network 2.4.2. Datapath Clock Network 2.4.3. System PLL 2.4.4. Datapath Clock Cadences
2.4.1. Reference Clock Network x
2.4.1.1. FHT Reference Clock Network 2.4.1.2. FGT and System PLL Reference Clock Network 2.4.1.3. FGT Primary PLL Configuration
3. Implementing the F-Tile PMA/FEC Direct PHY Intel® FPGA IP x
3.1. F-Tile PMA/FEC Direct PHY Intel® FPGA IP Overview 3.2. Designing with F-Tile PMA/FEC Direct PHY Intel® FPGA IP 3.3. Configuring the IP 3.4. Signal and Port Reference 3.5. Bit Mapping for PMA and FEC Mode PHY TX and RX Datapath 3.6. Clocking 3.7. Custom Cadence Generation Ports and Logic 3.8. Asserting Reset 3.9. Bonding Implementation 3.10. Independent Port Configurations 3.11. Configuration Registers 3.12. Configurable Intel® Quartus® Prime Software Settings 3.13. Configuring the F-Tile PMA/FEC Direct PHY Intel® FPGA IP for Hardware Testing 3.14. Hardware Configuration Using the Avalon® Memory-Mapped Interface
3.1. F-Tile PMA/FEC Direct PHY Intel® FPGA IP Overview x
3.1.1. PMA Direct Supported Modes 3.1.2. FEC Direct Supported Modes 3.1.3. Unsupported PMA/FEC Modes
3.2. Designing with F-Tile PMA/FEC Direct PHY Intel® FPGA IP x
3.2.1. Preset IP Parameter Settings
3.3. Configuring the IP x
3.3.1. General and Common Datapath Options 3.3.2. TX Datapath Options 3.3.3. RX Datapath Options 3.3.4. RS-FEC (Reed Solomon Forward Error Correction) Options 3.3.5. Avalon® Memory Mapped Interface Options 3.3.6. Register Map IP-XACT Support 3.3.7. Example Design Generation
3.3.1. General and Common Datapath Options x
3.3.1.1. FGT PMA Configuration Rules for SATA and USB mode
3.3.2. TX Datapath Options x
3.3.2.1. TX PMA interface Parameters
3.3.3. RX Datapath Options x
3.3.3.1. RX FGT PMA Interface Options
3.4. Signal and Port Reference x
3.4.1. TX and RX Parallel and Serial Interface Signals 3.4.2. TX and RX Reference Clock and Clock Output Interface Signals 3.4.3. Reset Signals 3.4.4. RS-FEC Signals 3.4.5. Custom Cadence Control and Status Signals 3.4.6. TX PMA Control Signals 3.4.7. RX PMA Status Signals 3.4.8. TX and RX PMA and Core Interface FIFO Signals 3.4.9. PMA Avalon® Memory Mapped Interface Signals 3.4.10. Datapath Avalon® Memory Mapped Interface Signals
3.4.10. Datapath Avalon® Memory Mapped Interface Signals x
3.4.10.1. Number of Datapath Memory Mapped Avalon® Interfaces and Additional Address Bits per Interface
3.5. Bit Mapping for PMA and FEC Mode PHY TX and RX Datapath x
3.5.1. Parallel Data Mapping Information 3.5.2. TX and RX Parallel Data Mapping Information for Different Configurations 3.5.3. Example of TX Parallel Data for PMA Width = 8, 10, 16, 20, 32 (X=1) 3.5.4. Example of TX Parallel Data for PMA width = 64 (X=2) 3.5.5. Example of TX Parallel Data for PMA width = 64 (X=2) for FEC Direct Mode
3.5.2. TX and RX Parallel Data Mapping Information for Different Configurations x
3.5.2.1. TX Parallel Data Mapping Information for SATA and USB Protocol Modes for Different Configurations
3.6. Clocking x
3.6.1. Clock Ports 3.6.2. Recommended tx/rx_coreclkin Connection and tx/rx_clkout2 Source 3.6.3. Port Widths and Recommended Connections for tx/rx_coreclkin, tx/rx_clkout, and tx/rx_clkout2 3.6.4. FGT PMA Fractional Mode 3.6.5. FGT Core PLL Mode
3.7. Custom Cadence Generation Ports and Logic x
3.7.1. Enabling the tx_cadence_slow_clk_locked Port 3.7.2. Rate Match FIFO
3.8. Asserting Reset x
3.8.1. Reset Signal Requirements 3.8.2. Power On Reset Requirements 3.8.3. Reset Signals—Block Level 3.8.4. Reset Signals—Descriptions 3.8.5. Status Signals—Descriptions 3.8.6. Run-time Reset Sequence—TX 3.8.7. Run-time Reset Sequence—RX 3.8.8. Run-time Reset Sequence—TX + RX 3.8.9. Run-time Reset Sequence—TX with FEC
3.8.8. Run-time Reset Sequence—TX + RX x
3.8.8.1. Run-time Reset Sequence Approximate Time Durations
3.11. Configuration Registers x
3.11.1. PMA and FEC Direct PHY Soft CSR Register Map 3.11.2. FHT PMA Register Map 3.11.3. FGT PMA Register Map 3.11.4. FEC Register Map 3.11.5. Lane Offset Address 3.11.6. Accessing Configuration Registers
3.11.6. Accessing Configuration Registers x
3.11.6.1. Accessing PMA and FEC Direct PHY Soft CSR Registers 3.11.6.2. Accessing FHT PMA Registers 3.11.6.3. Accessing FGT PMA Registers
3.13. Configuring the F-Tile PMA/FEC Direct PHY Intel® FPGA IP for Hardware Testing x
3.13.1. Using Debug Endpoint Interface within the F-Tile PMA/FEC Direct PHY Intel® FPGA IP 3.13.2. Using JTAG to Avalon® Master Bridge Intel FPGA IP
3.13.1. Using Debug Endpoint Interface within the F-Tile PMA/FEC Direct PHY Intel® FPGA IP x
3.13.1.1. RTL Connection Example for Debug Endpoint Avalon® Interface
3.13.2. Using JTAG to Avalon® Master Bridge Intel FPGA IP x
3.13.2.1. RTL Connection Example for JTAG to Avalon® Master Bridge Intel IP
3.14. Hardware Configuration Using the Avalon® Memory-Mapped Interface x
3.14.1. FHT PMA 3.14.2. FGT PMA
3.14.1. FHT PMA x
3.14.1.1. Enabling Loopback 3.14.1.2. Enabling the PRBS Generator and Verifier 3.14.1.3. TX Equalizer Settings 3.14.1.4. TX Error Injection 3.14.1.5. RX Reconvergence 3.14.1.6. Preserving Unused Lanes
3.14.2. FGT PMA x
3.14.2.1. Direct Register Method 3.14.2.2. FGT Attribute Access Method
3.14.2.1. Direct Register Method x
3.14.2.1.1. Direct Register Method Examples
3.14.2.2. FGT Attribute Access Method x
3.14.2.2.1. FGT Attribute Access Method Example 1 3.14.2.2.2. FGT Attribute Access Method Example 2 3.14.2.2.3. FGT Attribute Access Method Example 3
4. Implementing the F-Tile Reference and System PLL Clocks Intel® FPGA IP x
4.1. IP Parameters 4.2. IP Port List 4.3. Mode of System PLL - System PLL Reference Clock and Output Frequencies 4.4. Guidelines for F-Tile Reference and System PLL Clocks Intel® FPGA IP Usage 4.5. Guidelines to Indicate all System PLL Reference Clocks are Ready
4.5. Guidelines to Indicate all System PLL Reference Clocks are Ready x
4.5.1. Example of Reference Clock Availability at Device Programming 4.5.2. Example Flow to Indicate All System PLL Reference Clocks are Ready
5. Implementing the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP x
5.1. IP Parameters 5.2. IP Port List 5.3. Hardware Flow Using the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP 5.4. Examples of Register Access Using the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP
5.4. Examples of Register Access Using the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP x
5.4.1. FGT PMA Registers Access Example 5.4.2. FHT PMA Registers Access Example 5.4.3. 400G MAC/PCS Interface Registers Access Example 5.4.4. 400G FEC/PMA Interface Registers Access Example 5.4.5. 200G MAC/PCS Interface Registers Access Example 5.4.6. 200G FEC/PMA Interface Registers Access Example
6. F-tile PMA/FEC Direct PHY Design Implementation x
6.1. Implementing the F-tile PMA/FEC Direct PHY Design 6.2. Instantiating the F-Tile PMA/FEC Direct PHY Intel® FPGA IP 6.3. Implementing a RS-FEC Direct Design in the F-Tile PMA/FEC Direct PHY Intel® FPGA IP 6.4. Instantiating the F-Tile Reference and System PLL Clocks Intel® FPGA IP 6.5. Enabling Custom Cadence Generation Ports and Logic 6.6. Connecting the F-tile PMA/FEC Direct PHY Design IP 6.7. Simulating the F-Tile PMA/FEC Direct PHY Design 6.8. F-tile Interface Planning
6.2. Instantiating the F-Tile PMA/FEC Direct PHY Intel® FPGA IP x
6.2.1. Setting General and Common Datapath Options 6.2.2. Setting TX Datapath Options 6.2.3. Setting RX Datapath Options
6.7. Simulating the F-Tile PMA/FEC Direct PHY Design x
6.7.1. PAM4 Encoding Schemes in Simulation
6.8. F-tile Interface Planning x
6.8.1. F-tile Interface Planner Usage Example
7. Supported Tools x
7.1. F-Tile Channel Placement Tool 7.2. F-Tile PMA and FEC Direct Port Mapping Calculator 7.3. F-Tile Clocking and Datapath Tool 7.4. F-Tile TX Equalizer Tool
8. Debugging F-Tile Transceiver Links x
8.1. F-Tile Transceiver Toolkit GUI 8.2. F-Tile Transceiver Debugging Flow Walkthrough 8.3. Transceiver Toolkit Parameter Settings 8.4. Troubleshooting Common Errors 8.5. Transceiver Toolkit Scripts
8.1. F-Tile Transceiver Toolkit GUI x
8.1.1. Collection View
8.2. F-Tile Transceiver Debugging Flow Walkthrough x
8.2.1. Modifying the Design to Enable F-Tile Transceiver Debug 8.2.2. Programming the Design into an Intel FPGA 8.2.3. Loading the Design to the Transceiver Toolkit 8.2.4. Creating Transceiver Links 8.2.5. Running BER Tests 8.2.6. Running Eye Viewer Tests 8.2.7. Running Link Optimization Tests
8.5. Transceiver Toolkit Scripts x
8.5.1. Supported Transceiver Toolkit Scripts 8.5.2. Modifying the Scripts 8.5.3. Script Execution 8.5.4. Example of the Results in Tcl Console
1. F-tile Overview
2. F-tile Architecture
3. Implementing the F-Tile PMA/FEC Direct PHY Intel® FPGA IP
4. Implementing the F-Tile Reference and System PLL Clocks Intel® FPGA IP
5. Implementing the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP
6. F-tile PMA/FEC Direct PHY Design Implementation
7. Supported Tools
8. Debugging F-Tile Transceiver Links
9. F-tile Architecture and PMA and FEC Direct PHY IP User Guide Archives
10. Document Revision History for F-tile Architecture and PMA and FEC Direct PHY IP User Guide

5.3. Hardware Flow Using the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP

You can access the FHT and FGT PMA registers using the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP.

You can access the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP by using the Enable Debug Master Endpoint on Global AVMM parameter, JTAG to Avalon® Master Bridge Intel FPGA IP, Nios® II Gen 2 processor, or customized state machines. The rest of this section uses the JTAG to Avalon® Master Bridge Intel FPGA IP as an example to demonstrate the steps to add the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP to work with a F-Tile PMA/FEC Direct PHY Intel® FPGA IP design.

  1. Add the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP into your design and enable the read_data_valid port as shown in the following figures.
    Note: Enabling the Enable Debug Master Endpoint on Global AVMM parameter is optional. When enabled, an embedded Native PHY Debug Master Endpoint is implemented internally and you can skip steps 2 and 3.
    Figure 92. F-Tile Global Avalon Memory-Mapped Interface Intel FPGA IP
    Figure 93.  F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP Settings
  2. Add the JTAG to Avalon® Master Bridge Intel FPGA IP into your design.
    Figure 94. JTAG to Avalon® Master Bridge Intel FPGA IP
  3. Declare wires to connect the g_avmm interface to the jtag_master ports as shown in the following figure.
    Note: The g_avmm_address port of g_avmm interface is 18 bits and the master_address port of jtag_master is 32 bits.
    Note: You need to enable the readdatavalid port in the JTAG to Avalon® Master Bridge Intel FPGA IP and connect it to the corresponding F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP port.
    Figure 95.  F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP to JTAG to Avalon® Master Bridge Intel FPGA IP RTL Connections
  4. In the Intel® Quartus® Prime Pro Edition software compilation flow, the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP instance has to be associated with the F-Tile PMA/FEC Direct PHY Intel® FPGA IP instance using the IP_COLOCATE qsf assignment as shown below. 
    set_instance_assignment -name IP_COLOCATE F_TILE -from <GAVMM IP Instance Path> -to <F-tile DPHY IP Instance Path> -entity <Top-Level Entity>
    To create the qsf assignments you must perform the following steps:
    1. Run the Support-Logic Generation for your design in the Intel® Quartus® Prime Pro Edition software.
      Figure 96. Support Logic Generation Intel® Quartus® Prime Pro Edition Software
      Note: A Logic Generation failure is expected since the qsf assignments are not defined yet.
      Figure 97. Logic Generation Failure in Intel® Quartus® Prime Pro Edition Software
    2. Click on the compilation report next to the Logic Generation button and navigate to the IP Parameter Settings Report, Pre Placement report under Logic Generation Tool report folder as shown below:
      Tip: You can use the Logic Generation Tool report during your debug to check values of the parameters. This report lists the available parameters that you may use to explore alternate solutions.
      Figure 98. Logic Generation Reports in Intel® Quartus® Prime Pro Edition Software
    3. Identify the F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP and F-Tile PMA/FEC Direct PHY Intel® FPGA IP instance paths.
      Note: F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP instance path ends with gavmm_f_0 and the F-Tile PMA/FEC Direct PHY Intel® FPGA IP instance path ends with directphy_f_0.
    4. Add the IP_COLOCATE assignment in your Intel® Quartus® Prime Pro Edition software qsf file. As an example, you would add the following assignments in your qsf file for the instance report shown above.
      set_instance_assignment -name IP_COLOCATE F_TILE -from Tile1_top|gavmm_inst1|gavmm_f_0 -to Tile1_top|DPHY1|directphy_f_0 -entity multi_tile_demo
      set_instance_assignment -name IP_COLOCATE F_TILE -from Tile1_top|gavmm_inst1|gavmm_f_0 -to Tile1_top|DPHY2|directphy_f_0 -entity multi_tile_demo
      set_instance_assignment -name IP_COLOCATE F_TILE -from Tile2_top|gavmm_inst2|gavmm_f_0 -to Tile2_top|DPHY3|directphy_f_0 -entity multi_tile_demo
      This example is a multi-tile design with the top level named multi_tile_demo. The design has three instances of F-Tile PMA/FEC Direct PHY Intel® FPGA IP named DPHY1, DPHY2 and DPHY3 and two instances of F-Tile Global Avalon® Memory-Mapped Interface Intel® FPGA IP named gavmm_inst1 and gavmm_inst2. The DPHY1 and DPHY2 instances are placed in the same F-Tile and are accessed using gavmm_inst1 (1st and 2nd qsf assignments). The DPHY3 is placed in another F-Tile and is accessed using gavmm_inst2 (3rd qsf assignment).
    5. Once you have added the IP_COLOCATE qsf assignments to your design, it should compile successfully.
  5. To perform hardware testing to access registers using the global Avalon® interface you need to do the following:
    1. Write the page address of the block you want to access to the page address register: 0xffffc. The following table shows the page address of the various blocks in the F-tile.
      Table 97.  Block and Page Address
      Block Page Address
      EMIB 0x00
      400G MAC/PCS Interface 0x02
      400G FEC/PMA Interface 0x04
      200G MAC/PCS Interface 0x06
      200G FEC/PMA Interface 0x08
      PCIe Hard IP 0x0A
      FGT PMA Quad 0 0x0C
      FGT PMA Quad 1 0x0D
      FGT PMA Quad 2 0x0E
      FGT PMA Quad 3 0x0F
      FHT PMA 0x10
    2. You can then read and write values to the PMA offset register address to access the registers.
Level Two Title