GTS Serial Lite IV Intel® FPGA IP User Guide

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ID 813966
Date 8/05/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the GTS Serial Lite IV Intel® FPGA IP User Guide: Agilex™ 5 E-Series Devices 2. GTS Serial Lite IV Intel® FPGA IP Overview 3. Getting Started 4. Functional Description 5. Parameters 6. GTS Serial Lite IV Intel® FPGA IP Interface Signals 7. Designing with GTS Serial Lite IV Intel® FPGA IP 8. Document Revision History for the GTS Serial Lite IV Intel® FPGA IP User Guide
2. GTS Serial Lite IV Intel® FPGA IP Overview x
2.1. Release Information 2.2. Supported Features 2.3. IP Version Support Level 2.4. Device Speed Grade Support 2.5. Resource Utilization and Latency 2.6. Bandwidth Efficiency
3. Getting Started x
3.1. Installing and Licensing Intel® FPGA IP Cores 3.2. Specifying the IP Parameters and Options 3.3. Generated File Structure 3.4. Simulating Intel® FPGA IP Cores 3.5. Synthesizing IP Cores in Other EDA Tools 3.6. Compiling the Full Design
3.1. Installing and Licensing Intel® FPGA IP Cores x
3.1.1. Intel® FPGA IP Evaluation Mode
3.4. Simulating Intel® FPGA IP Cores x
3.4.1. Simulating and Verifying the Design
4. Functional Description x
4.1. TX Datapath 4.2. RX Datapath 4.3. GTS Serial Lite IV Intel® FPGA IP Clock Architecture 4.4. Reset and Link Initialization 4.5. Link Rate and Bandwidth Efficiency Calculation
4.1. TX Datapath x
4.1.1. TX MAC Adapter 4.1.2. Control Word (CW) Insertion 4.1.3. TX CRC 4.1.4. TX MII Encoder 4.1.5. TX PCS and PMA
4.1.2. Control Word (CW) Insertion x
4.1.2.1. Start-of-burst CW 4.1.2.2. End-of-burst CW 4.1.2.3. Alignment Paired CW 4.1.2.4. Empty-cycle CW 4.1.2.5. Idle CW 4.1.2.6. Data Word
4.2. RX Datapath x
4.2.1. RX PCS and PMA 4.2.2. RX MII Decoder 4.2.3. RX CRC 4.2.4. RX Deskew 4.2.5. RX CW Removal
4.4. Reset and Link Initialization x
4.4.1. TX Reset and Initialization Sequence 4.4.2. RX Reset and Initialization Sequence
6. GTS Serial Lite IV Intel® FPGA IP Interface Signals x
6.1. Clock Signals 6.2. Reset Signals 6.3. MAC Signals 6.4. Transceiver Reconfiguration Signals 6.5. PMA/PCS Signals
7. Designing with GTS Serial Lite IV Intel® FPGA IP x
7.1. Reset Guidelines 7.2. Error Handling Guidelines 7.3. Analog Parameter Settings
1. About the GTS Serial Lite IV Intel® FPGA IP User Guide: Agilex™ 5 E-Series Devices
2. GTS Serial Lite IV Intel® FPGA IP Overview
3. Getting Started
4. Functional Description
5. Parameters
6. GTS Serial Lite IV Intel® FPGA IP Interface Signals
7. Designing with GTS Serial Lite IV Intel® FPGA IP
8. Document Revision History for the GTS Serial Lite IV Intel® FPGA IP User Guide

4.3. GTS Serial Lite IV Intel® FPGA IP Clock Architecture

The GTS Serial Lite IV Intel® FPGA IP has six clocks which generate clocks to different blocks:
  • Transceiver reference clock (xcvr_ref_clk)—Input clock from external clock chips or oscillators which generates clocks for TX PMA and RX PMA. Refer to Parameters for supported frequency range.
  • TX core clock (tx_core_clk)—This clock is derived from transceiver PLL and is used for EFIFO and TX MAC. This clock is also an output clock from the transceiver to connect to the TX user logic.
  • RX core clock (rx_core_clk)—This clock is derived from the Clock Data Recovery (CDR) PLL and is used for EFIFO, RX deskew FIFO, and RX MAC. This clock is also an output clock from the transceiver to connect to the RX user logic.
  • Clock for PMA reconfiguration interface (reconfig_clk)—input clock from external clock circuits or oscillators which generates clocks for transceiver reconfiguration interface in both TX and RX PMA. The clock frequency is 100 to 162 MHz.
  • System PLL clock (sys_clk)—used for TX/RX EFIFO, and PCS.

The following block diagram shows GTS Serial Lite IV Intel® FPGA IP clock domains and the connections within the IP.

Figure 22.  GTS Serial Lite IV Intel® FPGA IP Clock Architecture
Level Two Title