Agilex™ 7 LVDS SERDES User Guide: M-Series

Download PDF
ID 768615
Date 7/23/2024
Public
Document Table of Contents
Document Table of Contents x
1. Agilex™ 7 M-Series LVDS SERDES Overview 2. Agilex™ 7 M-Series LVDS SERDES Architecture 3. Agilex™ 7 M-Series LVDS SERDES Transmitter 4. Agilex™ 7 M-Series LVDS SERDES Receiver 5. Agilex™ 7 M-Series High-Speed LVDS I/O Implementation Guide 6. Agilex™ 7 M-Series LVDS SERDES Timing 7. LVDS SERDES Intel® FPGA IP Design Examples 8. Agilex™ 7 M-Series LVDS SERDES Design Guidelines 9. Agilex™ 7 M-Series LVDS SERDES Troubleshooting Guidelines 10. Documentation Related to the Agilex™ 7 LVDS SERDES User Guide: M-Series 11. Document Revision History for the Agilex™ 7 LVDS SERDES User Guide: M-Series
1. Agilex™ 7 M-Series LVDS SERDES Overview x
1.1. LVDS SERDES Usage Modes
2. Agilex™ 7 M-Series LVDS SERDES Architecture x
2.1. Agilex™ 7 M-Series GPIO-B Banks, SERDES, and DPA Locations 2.2. SERDES Blocks, Modes, and Clock Domains
3. 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. 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. 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 SERDES 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. 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 Quartus® Prime Design Examples 7.2. LVDS SERDES IP Simulation Design Example
8. Agilex™ 7 M-Series LVDS SERDES Design Guidelines x
8.1. Use PLLs in Integer PLL Mode for LVDS SERDES 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 SERDES Transmitters and Receivers in the Same GPIO-B Sub-Bank with External PLL 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 SERDES 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. Agilex™ 7 M-Series LVDS SERDES Overview
2. Agilex™ 7 M-Series LVDS SERDES Architecture
3. Agilex™ 7 M-Series LVDS SERDES Transmitter
4. Agilex™ 7 M-Series LVDS SERDES Receiver
5. Agilex™ 7 M-Series High-Speed LVDS I/O Implementation Guide
6. Agilex™ 7 M-Series LVDS SERDES Timing
7. LVDS SERDES Intel® FPGA IP Design Examples
8. Agilex™ 7 M-Series LVDS SERDES Design Guidelines
9. Agilex™ 7 M-Series LVDS SERDES Troubleshooting Guidelines
10. Documentation Related to the Agilex™ 7 LVDS SERDES User Guide: M-Series
11. Document Revision History for the Agilex™ 7 LVDS SERDES User Guide: M-Series

1.1. LVDS SERDES Usage Modes

You can use the M-Series LVDS SERDES through the LVDS SERDES Intel® FPGA IP. The LVDS SERDES IP supports four SERDES functional modes.
Table 1.  Summary of the M-Series LVDS SERDES Usage ModesAll usage modes in this table support SERDES factors of 4 and 8.
Functional Mode Description

Transmitter

(TX)

  • The SERDES block acts as a serializer.
  • A PLL generates these signals:
    • fast_clock
    • load_enable

Non-DPA receiver

(RX Non-DPA)

  • The SERDES block acts as a deserializer that bypasses the DPA and DPA-FIFO.
  • A PLL generates the fast_clock signal.
  • The SERDES captures the incoming data at the bit slip with the fast_clock signal. Therefore, you must ensure the correct clock–data alignment.

DPA-FIFO receiver

(RX DPA-FIFO)

  • The SERDES block acts as a deserializer that uses the DPA block.
  • The DPA block uses a set of eight DPA clocks to select the optimal phase for sampling data.
    • The DPA clocks run at the fast_clock frequency with each clock phase-shifted 45° apart.
    • The DPA-FIFO, a circular buffer, samples the incoming data with the selected DPA clock and forwards the data to LVDS clock domain.
    • The bit slip circuitry then samples the data and inserts latencies to realign the data to match the desired word boundary of the deserialized data.

Soft-CDR receiver

(RX Soft-CDR)

  • The LVDS SERDES IP forwards these clocks:
    • The optimal DPA clock (DPACLK) into the LVDS clock domain as the fast_clock signal.
    • The rx_divfwdclk, produced by the local clock generator, to the device core.
  • Each bank has only 12 soft-CDR channels available. Refer to the device pin-out files to determine which pin pairs can support soft-CDR channels in each bank.
Related Information
Level Two Title