F-Tile Serial Lite IV Intel® FPGA IP User Guide

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ID 683074
Date 11/16/2021
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Document Table of Contents
Document Table of Contents x
1. About the F-Tile Serial Lite IV Intel® FPGA IP User Guide 2. F-Tile Serial Lite IV Intel® FPGA IP Overview 3. Getting Started 4. Functional Description 5. Parameters 6. F-Tile Serial Lite IV Intel® FPGA IP Interface Signals 7. Designing with F-Tile Serial Lite IV Intel® FPGA IP 8. F-Tile Serial Lite IV Intel® FPGA IP User Guide Archives 9. Document Revision History for the F-Tile Serial Lite IV Intel® FPGA IP User Guide
2. F-Tile 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. F-Tile 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. F-Tile 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 Signals
7. Designing with F-Tile Serial Lite IV Intel® FPGA IP x
7.1. Reset Guidelines 7.2. Error Handling Guidelines
1. About the F-Tile Serial Lite IV Intel® FPGA IP User Guide
2. F-Tile Serial Lite IV Intel® FPGA IP Overview
3. Getting Started
4. Functional Description
5. Parameters
6. F-Tile Serial Lite IV Intel® FPGA IP Interface Signals
7. Designing with F-Tile Serial Lite IV Intel® FPGA IP
8. F-Tile Serial Lite IV Intel® FPGA IP User Guide Archives
9. Document Revision History for the F-Tile Serial Lite IV Intel® FPGA IP User Guide

4.1.2.1. Start-of-burst CW

Figure 11. Start-of-burst CW Format
In Full mode, you can insert the START CW by asserting the tx_avs_startofpacket signal. When you assert only the tx_avs_startofpacket signal, the sop bit is set. When you assert both the tx_avs_startofpacket and tx_avs_endofpacket signals, the seop bit is set.
Table 13.   START CW Field Values
Field Value
sop/seop 1
usr 8 Depending on the tx_is_usr_cmd signal:
  • 1: When tx_is_usr_cmd = 1
  • 0: When tx_is_usr_cmd = 0
align 0

In Basic mode, the MAC sends a START CW after the reset is deasserted. If no data is available, the MAC continuously sends EMPTY_CYC paired with END and START CWs until you start sending data.

8 This is supported only in Full mode.
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