Intel Agilex® 7 LVDS SERDES User Guide: M-Series

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ID 768615
Date 12/04/2023
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Document Table of Contents
Document Table of Contents x
1. Intel Agilex® 7 M-Series LVDS SERDES Overview 2. Intel Agilex® 7 M-Series LVDS SERDES Architecture 3. Intel Agilex® 7 M-Series LVDS SERDES Transmitter 4. Intel Agilex® 7 M-Series LVDS SERDES Receiver 5. Intel Agilex® 7 M-Series High-Speed LVDS I/O Implementation Guide 6. Intel Agilex® 7 M-Series LVDS SERDES Timing 7. LVDS SERDES Intel® FPGA IP Design Examples 8. Intel Agilex® 7 M-Series LVDS SERDES Design Guidelines 9. Intel Agilex® 7 M-Series LVDS SERDES Troubleshooting Guidelines 10. Documentation Related to the Intel Agilex® 7 LVDS SERDES User Guide: M-Series 11. Document Revision History for the Intel Agilex® 7 LVDS SERDES User Guide: M-Series
1. Intel Agilex® 7 M-Series LVDS SERDES Overview x
1.1. LVDS SERDES Usage Modes
2. Intel Agilex® 7 M-Series LVDS SERDES Architecture x
2.1. Intel Agilex® 7 M-Series GPIO-B Banks, SERDES, and DPA Locations 2.2. SERDES Blocks, Modes, and Clock Domains
3. Intel Agilex® 7 M-Series LVDS SERDES Transmitter x
3.1. LVDS SERDES Transmitter Blocks 3.2. Serializer 3.3. Clocking the Differential Transmitters
3.2. Serializer x
3.2.1. Serializer Bypass for DDR and SDR Operations 3.2.2. Differential I/O Bit Position
3.3. Clocking the Differential Transmitters x
3.3.1. Transmitter Output Clock Parameters Settings
3.3.1. Transmitter Output Clock Parameters Settings x
3.3.1.1. Edge-Aligned tx_outclock to tx_out
4. Intel Agilex® 7 M-Series LVDS SERDES Receiver x
4.1. LVDS SERDES Receiver Blocks 4.2. Clocking the LVDS SERDES Receivers 4.3. LVDS SERDES Receiver Modes
4.1. LVDS SERDES Receiver Blocks x
4.1.1. Dynamic Phase Alignment Block 4.1.2. Synchronizer (DPA FIFO) 4.1.3. Data Realignment Block (Bit Slip) 4.1.4. Deserializer
4.2. Clocking the LVDS SERDES Receivers x
4.2.1. Receiver Input Clock Parameters Settings
4.2.1. Receiver Input Clock Parameters Settings x
4.2.1.1. Edge-Aligned inclock to rx_in 4.2.1.2. Center-Aligned inclock to rx_in
4.3. LVDS SERDES Receiver Modes x
4.3.1. Non-DPA Mode 4.3.2. DPA Mode 4.3.3. Soft-CDR Mode
5. Intel Agilex® 7 M-Series High-Speed LVDS I/O Implementation Guide x
5.1. LVDS SERDES Intel® FPGA IP 5.2. LVDS Interface with External PLL Mode 5.3. LVDS SERDES IP Initialization and Reset
5.1. LVDS SERDES Intel® FPGA IP x
5.1.1. Release Information 5.1.2. LVDS SERDES Intel® FPGA IP Features 5.1.3. LVDS SERDES IP Usage Modes 5.1.4. Planning the LVDS Interface 5.1.5. Generating the LVDS SERDES Intel® FPGA IP 5.1.6. LVDS SERDES Intel® FPGA IP Parameter Settings 5.1.7. LVDS SERDES Intel® FPGA IP Signals
5.1.5. Generating the LVDS SERDES Intel® FPGA IP x
5.1.5.1. Intel® FPGA IP Generation Output
5.1.6. LVDS SERDES Intel® FPGA IP Parameter Settings x
5.1.6.1. LVDS SERDES Intel® FPGA IP General Settings 5.1.6.2. LVDS SERDES Intel® FPGA IP Pin Settings 5.1.6.3. LVDS SERDES Intel® FPGA IP PLL Settings 5.1.6.4. LVDS SERDES Intel® FPGA IP Receiver Settings 5.1.6.5. LVDS SERDES Intel® FPGA IP Transmitter Settings 5.1.6.6. LVDS SERDES Intel® FPGA IP Clock Resource Summary
5.1.6.2. LVDS SERDES Intel® FPGA IP Pin Settings x
5.1.6.2.1. GPIO-B Pin Index Number and Respective Channel Pin Selection 5.1.6.2.2. Placing Channel Bytes in I/O Lanes 5.1.6.2.3. Locating the I/O Lane and Channel Pin through the Interface Planner
5.2. LVDS Interface with External PLL Mode x
5.2.1. IOPLL IP Signal Interface with LVDS SERDES IP 5.2.2. IOPLL Parameter Values for External PLL Mode 5.2.3. Connection between IOPLL IP and LVDS SERDES IP in External PLL Mode
5.3. LVDS SERDES IP Initialization and Reset x
5.3.1. Initializing the LVDS SERDES IP in Non-DPA Mode 5.3.2. Initializing the LVDS SERDES IP in DPA Mode 5.3.3. Resetting the DPA 5.3.4. Word Boundaries Alignment
5.3.4. Word Boundaries Alignment x
5.3.4.1. Aligning Word Boundaries
6. Intel Agilex® 7 M-Series LVDS SERDES Timing x
6.1. LVDS SERDES Intel® FPGA IP Timing 6.2. LVDS SERDES Source-Synchronous Timing Budget
6.1. LVDS SERDES Intel® FPGA IP Timing x
6.1.1. I/O Timing Analysis 6.1.2. FPGA Timing Analysis 6.1.3. Timing Analysis for the External PLL Mode
6.1.1. I/O Timing Analysis x
6.1.1.1. Obtaining RSKM Report 6.1.1.2. Obtaining TCCS Report
6.2. LVDS SERDES Source-Synchronous Timing Budget x
6.2.1. Transmitter Channel-to-Channel Skew 6.2.2. Receiver Skew Margin
7. LVDS SERDES Intel® FPGA IP Design Examples x
7.1. LVDS SERDES IP Synthesizable Intel® Quartus® Prime Design Examples 7.2. LVDS SERDES IP Simulation Design Example
8. Intel Agilex® 7 M-Series LVDS SERDES Design Guidelines x
8.1. Use PLLs in Integer PLL Mode for LVDS 8.2. Use High-Speed Clock from PLL to Clock SERDES Only 8.3. Pin Placement for Differential Channels 8.4. SERDES Pin Pairs for Soft-CDR Mode 8.5. Placing LVDS Transmitters and Receivers in the Same GPIO-B Sub-Bank 8.6. Sharing LVDS SERDES I/O Lane with Other Intel® FPGA IPs 8.7. VCCIO_PIO Power Scheme for LVDS SERDES
8.3. Pin Placement for Differential Channels x
8.3.1. I/O PLLs Driving LVDS Transmitter and Receiver Channels 8.3.2. Placement Restrictions for True Differential and Single-Ended I/O Standards in the Same or Adjacent GPIO-B Bank
1. Intel Agilex® 7 M-Series LVDS SERDES Overview
2. Intel Agilex® 7 M-Series LVDS SERDES Architecture
3. Intel Agilex® 7 M-Series LVDS SERDES Transmitter
4. Intel Agilex® 7 M-Series LVDS SERDES Receiver
5. Intel Agilex® 7 M-Series High-Speed LVDS I/O Implementation Guide
6. Intel Agilex® 7 M-Series LVDS SERDES Timing
7. LVDS SERDES Intel® FPGA IP Design Examples
8. Intel Agilex® 7 M-Series LVDS SERDES Design Guidelines
9. Intel Agilex® 7 M-Series LVDS SERDES Troubleshooting Guidelines
10. Documentation Related to the Intel Agilex® 7 LVDS SERDES User Guide: M-Series
11. Document Revision History for the Intel Agilex® 7 LVDS SERDES User Guide: M-Series

5.1.6.2.2. Placing Channel Bytes in I/O Lanes

Use the Intel® Quartus® Prime Interface Planner to place the channel bytes in I/O lanes. Alternatively, you can use the .qsf file to assign the channel bytes to I/O lanes. The placement of the bytes determine the channel pins locations.

Before you begin:

  1. Optionally, plan your LVDS interface and note the full pin name and coordinate of one pin from each I/O lane. Refer to the related information.
  2. Set up the Pin Settings tab.
  3. Run Analysis & Synthesis for your project.

In the following steps, you use the pin name and coordinate to determine the I/O lane of the pin in the Interface Planner window and place the channel byte to the I/O lane.

  1. Open and initialize the Intel® Quartus® Prime Interface Planner.
    1. From the Intel® Quartus® Prime menu, select Tools > Interface Planner.
      The Interface Planner window displays.
    2. From the Interface Planner menu, select Plan > Initialize Interface Planner. Wait for the initialization to complete.
    3. From the Interface Planner menu, select Plan > Update Plan.
      The Assignments Applied window appears.
    4. Click OK.
  2. Switch to the Plan tab.
  3. Find the byte elements of your LVDS SERDES IP.
    1. In Design Element Filter box, enter byte_0.
    2. Expand your LVDS SERDES IP instance under the Design Element column.
    The Design section lists design elements that corresponds to the channel bytes you selected in the Pin Settings tab of the LVDS SERDES IP parameter editor.
    Figure 23. Interface Planner Listing the Channel Bytes Instances


  4. Right click a byte element and select Generate Legal Locations for Selected Element.
    The Legal Locations window displays.
  5. Find the I/O lane of the pins you plan for your LVDS channels.
    1. Refer to the pin full name and coordinate you noted when planning the LVDS interface.
      Alternatively, you can zoom in to the GPIO-B bank you want in the Interface Planner Chip View and look for the pin name. Once you select the pin, the Device Location > gid name field under the Info section of the Interface Planner displays the full pin name.
    2. In the Filter box under Legal Locations, enter the coordinate of the pin to make it easier to find your I/O lane.
      For example, the pin full name is "IOPAD_X11_Y418_N320". Enter X11_Y418.
    3. From the filtered list, select the I/O lane with the closest number lower than the number in the last section of the pin full name.
      For example, the number in the last section of the pin full name is "320". In the filtered list, select BYTE_X11_Y418_N291.
  6. Right-click the selected legal location and select Place at Selected.
The Placement column for selected row under the Design section updates with the selected resource.
You can verify the I/O lane and channel pins placement by using the Interface Planner to locate the I/O lane number and pin index number (as shown in the Pin Planner).
Related Information
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