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

4.1.2. Control Word (CW) Insertion

The GTS Serial Lite IV Intel® FPGA IP constructs CWs based on the input signals from the user logic. The CWs indicate packet delimiters, transmission status information or user data to the PCS block and they are derived from XGMII control codes.

The following table shows the description of the supported CWs:
Table 10.  Description of Supported CWs
CW Number of Words (1 word = 64 bits) In-band Description
START 1 Yes Start of data delimiter.
END 1 Yes End of data delimiter.
ALIGN 2 Yes Control word (CW) for RX alignment.
EMPTY_CYC 2 Yes Empty cycle in a data transfer.
IDLE 1 No IDLE (out of band).
DATA 1 Yes Payload.
Table 11.  CW Field Description
Field Description
RSVD Reserved field. May be used for future extension. Tied to 0.
num_valid_bytes_eob Number of valid bytes in the last word (64-bit). This is a 3-bit value.
  • 3'b000: 8 bytes
  • 3'b001: 1 byte
  • 3'b010: 2 bytes
  • 3'b011: 3 bytes
  • 3'b100: 4 bytes
  • 3'b101: 5 bytes
  • 3'b110: 6 bytes
  • 3'b111: 7 bytes
EMPTY Number of non-valid words at the end of a burst.
eop Indicates the RX Avalon® streaming interface to assert an end-of-packet signal.
sop Indicates the RX Avalon® streaming interface to assert a start-of-packet signal.
seop Indicates the RX Avalon® streaming interface to assert a start-of-packet and an end-of-packet in the same cycle.
align Check RX alignment.
CRC32 The values of computed CRC.
usr Indicates that the control word (CW) contains user-defined information.

Section Content
Start-of-burst CW
End-of-burst CW
Alignment Paired CW
Empty-cycle CW
Idle CW
Data Word

Level Two Title