GTS Transceiver PHY User Guide

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ID 817660
Date 7/08/2024
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Document Table of Contents
Document Table of Contents x
1. GTS Transceiver Overview 2. GTS Transceiver Architecture 3. Implementing the GTS PMA/FEC Direct PHY Intel FPGA IP 4. Implementing the GTS System PLL Clocks Intel FPGA IP 5. Implementing the GTS Reset Sequencer Intel FPGA IP 6. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design 7. Design Assistance Tools 8. Debugging GTS Transceiver Links with Transceiver Toolkit 9. Document Revision History for the GTS Transceiver PHY User Guide
2. GTS Transceiver Architecture x
2.1. Building Blocks 2.2. Channel Placement Rules and Design Requirements 2.3. PMA Architecture 2.4. PCS Architecture 2.5. Forward Error Correction (FEC) Architecture 2.6. Clock Architecture 2.7. Bonding and Deskew
2.1. Building Blocks x
2.1.1. PMA 2.1.2. FEC 2.1.3. PCS 2.1.4. Ethernet MAC 2.1.5. PCI Express* Hard IP 2.1.6. PLL and Clock Networks 2.1.7. Avalon® Memory-Mapped Interface
2.2. Channel Placement Rules and Design Requirements x
2.2.1. Hard IP Rules 2.2.2. Use Scenario Rules 2.2.3. Unused PMA Rules 2.2.4. General Design Requirement
2.3. PMA Architecture x
2.3.1. Transmitter PMA Architecture 2.3.2. Receiver PMA Architecture 2.3.3. PMA Loopback Modes
2.3.1. Transmitter PMA Architecture x
2.3.1.1. Transmitter Buffer 2.3.1.2. Serializer 2.3.1.3. Data Pattern Generator and Verifier
2.3.2. Receiver PMA Architecture x
2.3.2.1. Receiver Buffer and Equalizer 2.3.2.2. Deserializer 2.3.2.3. CDR Block 2.3.2.4. PMA Tuning
2.3.2.1. Receiver Buffer and Equalizer x
2.3.2.1.1. Control Unit
2.5. Forward Error Correction (FEC) Architecture x
2.5.1. FEC Loopback Mode
2.6. Clock Architecture x
2.6.1. Reference Clock Network 2.6.2. Datapath Clock Network 2.6.3. System PLL 2.6.4. Datapath Clock Cadences 2.6.5. Shared Clocking Resources Between the GTS Transceiver Bank and HVIO Bank
2.6.1. Reference Clock Network x
2.6.1.1. Single GTS Transceiver Bank Device 2.6.1.2. PMA Primary PLL Configuration
2.6.3. System PLL x
2.6.3.1. I/O PLLs in HVIO Bank as System PLL 2.6.3.2. Running PCIe* and Non- PCIe* Protocols in a GTS Transceiver Bank 2.6.3.3. System PLL Clock for FPGA Core 2.6.3.4. System PLL with HVIO Reference Clock
2.7. Bonding and Deskew x
2.7.1. Bonding Architecture 2.7.2. TX Deskew Function
3. Implementing the GTS PMA/FEC Direct PHY Intel FPGA IP x
3.1. IP Overview 3.2. Designing with the GTS PMA/FEC Direct PHY Intel FPGA IP 3.3. Configuring the GTS PMA/FEC Direct PHY Intel FPGA 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. Configuration Register 3.11. Configuring the GTS PMA/FEC Direct PHY Intel FPGA IP for Hardware Testing 3.12. Configurable Quartus® Prime Software Settings 3.13. Hardware Configuration Using the Avalon® Memory-Mapped Interface
3.1. IP Overview x
3.1.1. PMA Direct Supported Modes 3.1.2. FEC Direct Supported Modes 3.1.3. PCS Direct Supported Modes 3.1.4. Unsupported PMA/FEC/PCS Modes
3.3. Configuring the GTS PMA/FEC Direct PHY Intel FPGA IP x
3.3.1. Preset IP Parameter Settings 3.3.2. Common Datapath Options 3.3.3. TX Datapath Options 3.3.4. RX Datapath Options 3.3.5. FEC Options 3.3.6. PCS Options 3.3.7. Avalon® Memory-Mapped Interface Options 3.3.8. Register Map IP-XACT Support 3.3.9. Analog Parameter Options
3.3.3. TX Datapath Options x
3.3.3.1. TX PMA Interface Parameters
3.3.4. RX Datapath Options x
3.3.4.1. RX PMA Interface Parameters
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. FEC Signals 3.4.5. PCS Direct Signals: IEEE 3.4.6. PCS Direct Signals: IEEE_FLEXE_66/PCS66 3.4.7. Custom Cadence Control and Status Signals 3.4.8. RX PMA Status Signals 3.4.9. TX and RX PMA and Core Interface FIFO Signals 3.4.10. Avalon Memory-Mapped Interface Signals
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. PMA Fractional Mode
3.7. Custom Cadence Generation Ports and Logic x
3.7.1. Enabling the i_tx_cadence_slow_clk_locked Port
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. Run-time Reset Sequence—TX 3.8.5. Run-time Reset Sequence—RX 3.8.6. Run-time Reset Sequence—TX + RX 3.8.7. Run-time Reset Sequence—TX with FEC 3.8.8. RX Data Loss/CDR Lock Loss (Auto-Recovery) 3.8.9. TX PLL Lock Loss
3.9. Bonding Implementation x
3.9.1. Bonding Placement Requirements
3.10. Configuration Register x
3.10.1. GTS PMA and FEC Direct PHY Soft CSR Register Map 3.10.2. GTS PMA Register Map 3.10.3. Accessing Configuration Registers
3.10.2. GTS PMA Register Map x
3.10.2.1. Logical Avalon® Memory-Mapped Port Indexing
3.10.3. Accessing Configuration Registers x
3.10.3.1. Accessing GTS PMA and FEC Direct PHY Soft CSR Registers 3.10.3.2. Accessing GTS PMA Registers
3.11. Configuring the GTS PMA/FEC Direct PHY Intel FPGA IP for Hardware Testing x
3.11.1. Using Debug Endpoint Interface within the GTS PMA/FEC Direct PHY Intel FPGA IP 3.11.2. Using JTAG to Avalon Master Bridge Intel FPGA IP
3.11.1. Using Debug Endpoint Interface within the GTS PMA/FEC Direct PHY Intel FPGA IP x
3.11.1.1. RTL Connection Example for Debug Endpoint Avalon® Interface
3.11.2. Using JTAG to Avalon Master Bridge Intel FPGA IP x
3.11.2.1. RTL Connection Example for JTAG to Avalon Master Bridge Intel® FPGA IP
3.13. Hardware Configuration Using the Avalon® Memory-Mapped Interface x
3.13.1. Direct Register Method 3.13.2. GTS Attribute Access Method
3.13.1. Direct Register Method x
3.13.1.1. Direct Register Method Examples
3.13.2. GTS Attribute Access Method x
3.13.2.1. GTS Attribute Access Method Example 1 3.13.2.2. GTS Attribute Access Method Example 2
4. Implementing the GTS 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 GTS System PLL Clocks Intel FPGA IP Usage 4.5. Guidelines to Indicate System PLL Reference Clock is Ready
4.5. Guidelines to Indicate System PLL Reference Clock is Ready x
4.5.1. Example Flow to Indicate System PLL Reference Clock is Ready
5. Implementing the GTS Reset Sequencer Intel FPGA IP x
5.1. IP Requirements 5.2. IP Parameters 5.3. IP Port List 5.4. GTS Reset Sequencer Intel FPGA IP General Interface 5.5. GTS Reset Sequencer Intel FPGA IP Design Flow 5.6. GTS Reset Sequencer Intel FPGA IP Use Cases
5.6. GTS Reset Sequencer Intel FPGA IP Use Cases x
5.6.1. Example Use Case 1 5.6.2. Example Use Case 2
6. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design x
6.1. Instantiating the GTS PMA/FEC Direct PHY Intel FPGA IP 6.2. Generating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design 6.3. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Functional Description 6.4. Simulating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Testbench 6.5. Compiling the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design 6.6. Hardware Testing the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design
6.2. Generating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design x
6.2.1. Fast Simulation Support 6.2.2. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Directory Structure
6.4. Simulating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Testbench x
6.4.1. Modifying the Example Design and Performing Simulation
7. Design Assistance Tools x
7.1. Clocking and Datapath Tool 7.2. TX Equalizer Tool
8. Debugging GTS Transceiver Links with Transceiver Toolkit x
8.1. GTS Transceiver Toolkit Parameter Settings 8.2. GTS Transceiver Toolkit GUI 8.3. GTS Transceiver Debugging Flow Walkthrough
8.2. GTS Transceiver Toolkit GUI x
8.2.1. Collection View
8.3. GTS Transceiver Debugging Flow Walkthrough x
8.3.1. Modifying the Design to Enable GTS Transceiver Debug Toolkit 8.3.2. Programming the Design into an Intel FPGA 8.3.3. Loading the Design to the Transceiver Toolkit 8.3.4. Creating Transceiver Links 8.3.5. Running BER Tests 8.3.6. Running Eye Viewer Tests 8.3.7. Running Link Optimization Tests
1. GTS Transceiver Overview
2. GTS Transceiver Architecture
3. Implementing the GTS PMA/FEC Direct PHY Intel FPGA IP
4. Implementing the GTS System PLL Clocks Intel FPGA IP
5. Implementing the GTS Reset Sequencer Intel FPGA IP
6. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design
7. Design Assistance Tools
8. Debugging GTS Transceiver Links with Transceiver Toolkit
9. Document Revision History for the GTS Transceiver PHY User Guide

6.2. Generating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design

To generate the example design you need to open the GTS PMA/FEC Direct PHY Intel FPGA IP and go to the Example Design tab. The GTS PMA/FEC Direct PHY Intel FPGA IP parameter editor includes the Generate Example Design function to easily create and generate simulation files to simulate a GTS PMA or FEC direct mode example design.

You can currently select one out of the seven Example Design Options for generation as shown in the following table.
Table 77.  Example Design Options
Example Design Options Description
1 x 10.3125G FEC Direct Mode (System PLL Clocking) One NRZ Firecode FEC Direct GTS lane, with a throughput of 10.3125 Gbps, with System PLL clocking mode
1 x 10.3125G RSFEC Direct Mode (System PLL Clocking) One NRZ RS-FEC FEC Direct GTS lane, with a throughput of 10.3125 Gbps, with System PLL clocking mode
1 x 17.16G RSFEC Direct Mode (System PLL Clocking) One NRZ RS-FEC FEC Direct GTS lane, with a throughput of 17.160 Gbps, with System PLL clocking mode
1 x 17.16G PCS Direct Mode (System PLL Clocking) One NRZ PCS Direct GTS lane, with a throughput of 17.160 Gbps, with System PLL clocking mode
1 x 10.3125G PMA Direct Mode (System PLL Clocking) with Custom Cadence

One NRZ PMA Direct GTS lane, with a throughput of 10.3125 Gbps, with System PLL clocking mode and custom cadencing
4 x 10.3125G PMA Direct Mode (PMA Clocking)

Four NRZ PMA Direct GTS lane, with 10.3125 Gbps per PMA lane, with PMA clocking mode
1 x 1G PMA Direct Mode (System PLL Clocking) with Custom Cadence

One NRZ PMA Direct GTS lane, with a throughput of 1Gbps, with System PLL clocking mode and custom cadencing
1 x 3.125G PMA Direct Mode (System PLL Clocking) with Custom Cadence

One NRZ PMA Direct GTS lane, with a throughput of 3.125 Gbps, with System PLL clocking mode and custom cadencing.
1 x 28.1G Fire code FEC Direct Mode (System PLL Clocking) One NRZ Firecode FEC Direct GTS lane, with a throughput of 28.1 Gbps, with System PLL clocking mode.
1 x 28.1G RSFEC Direct Mode (System PLL Clocking) One NRZ RS-FEC FEC Direct GTS lane, with a throughput of 28.1 Gbps, with System PLL clocking mode.
1 x 28.1G PMA Direct Mode (System PLL Clocking) One NRZ PMA Direct GTS lane, with a throughput of 28.1 Gbps, with System PLL clocking mode.
1 x 28.1G PMA Direct Mode (PMA Clocking) One NRZ PMA Direct GTS lane, with a throughput of 28.1 Gbps, with PMA clocking mode.
To generate an example design, follow the steps below:
  1. Go to the Example Design tab in the GTS PMA/FEC Direct PHY Intel FPGA IP.
  2. Select one of the example designs from the drop-down menu. If you select None you cannot generate the example design.
  3. Click the Acknowledgment option box. This option is to remind you that only the example design you specify in the drop-down menu is generated. If you make any modification to the parameter settings of the IP after selecting the Example Design options from the drop down list, the changes you make to the IP parameters do not take effect. Only the parameters defined for the Example Design options in Example Design Options table take effect. If you do not check the acknowledgment box, you cannot generate the example design.
  4. If you are using Agilex™ 5 FPGA premium development kit, you can select the board Intel Agilex™ 5 FPGA E-Series 065B Premium Development Kit (ES1) in the drop-down list. With this selection, the Quartus® Prime Pro Edition software generates the example design with the reference clock and channel pin assignments in the .qsf file.
  5. Ensure steps 2. and step 3. are done, then click Generate Example Design. Clicking Generate Example Design completes the IP Generation. An example design folder is generated containing the Quartus® Prime software project (.qpf), settings (.qsf), and IP files. In addition, there are two folders created named rtl and testbench containing the RTL and simulation testbench files in the following location: 
    <Project Folder>/<directphy_example_design/example_design>
Figure 82. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Steps
Figure 83. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Board Selection
Note: If you select any of the seven available Example Design Options, but change the GTS PMA/FEC Direct PHY Intel FPGA IP settings in the GUI thereafter, the example design generated does not follow the changed settings for the GTS PMA/FEC Direct PHY Intel FPGA IP. The example design generation only takes the Example Design Options listed in Example Design tab of the IP Parameter editor. Any other changes that you make to the GTS PMA/FEC Direct PHY Intel FPGA IP settings are not applied during example design generation.
Note: For the Select Board option in the Example Design tab of the IP Parameter editor, only the Intel Agilex™ 5 FPGA E-Series 065B Premium Development Kit (ES1) option appears in the drop-down list, even if you select a Agilex™ 5 D-Series and E-Series Device Group A FPGAs in the Quartus® Prime Pro Edition software.
Note: When you generate the GTS PMA/FEC Direct PHY Intel FPGA IP example designs, the JTAG to Avalon Master Bridge Intel FPGA IP instance is used to connect to the Avalon® memory-mapped interface. If you want to use the Debug Endpoint interface to connect to the Avalon® memory-mapped interface, you must enable the functionality under the Avalon® Memory-Mapped Interface tab of the IP GUI. In addition, you must change the reconfiguration interface connections of the IP by following the instructions in Using Debug Endpoint Interface within the GTS PMA/FEC Direct PHY Intel FPGA IP.

Section Content
Fast Simulation Support
GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Directory Structure

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