GTS SDI II IP User Guide

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ID 823539
Date 6/30/2025
Public
Document Table of Contents
Document Table of Contents x
1. GTS SDI II IP Quick Reference 2. GTS SDI II IP Core Overview 3. GTS SDI II IP Core Getting Started 4. GTS SDI II IP Parameters 5. GTS SDI II IP Core Functional Description 6. GTS SDI II IP Core Signals 7. GTS SDI II IP Core Design Considerations 8. GTS SDI II IP Core Testbench and Design Examples 9. Document Revision History for the GTS SDI II IP User Guide
2. GTS SDI II IP Core Overview x
2.1. Release Information 2.2. Device Family Support 2.3. General Description 2.4. Performance and Resource Utilization
3. GTS SDI II IP Core Getting Started x
3.1. Installing and Licensing IP Cores 3.2. Design Walkthrough 3.3. GTS SDI II IP Core Component Files 3.4. Compiling the GTS SDI II IP Core Design 3.5. Programming an FPGA
3.1. Installing and Licensing IP Cores x
3.1.1. Intel FPGA IP Evaluation Mode
3.2. Design Walkthrough x
3.2.1. Creating a New Quartus® Prime Project 3.2.2. Launching IP Catalog 3.2.3. Parameterizing the IP Core 3.2.4. Generating a Design Example and Simulation Testbench
5. GTS SDI II IP Core Functional Description x
5.1. Protocol 5.2. Transceiver 5.3. Submodules 5.4. Optional Features
5.1. Protocol x
5.1.1. Transmitter 5.1.2. Receiver
5.3. Submodules x
5.3.1. Insert Line 5.3.2. Insert/Check CRC 5.3.3. Insert Payload ID 5.3.4. Match TRS 5.3.5. Scrambler 5.3.6. TX Sample 5.3.7. Clock Enable Generator 5.3.8. RX Sample 5.3.9. Detect Video Standard 5.3.10. Detect 1 and 1/1.001 Rates 5.3.11. Transceiver Controller 5.3.12. Descrambler 5.3.13. TRS Aligner 5.3.14. 3Gb Demux 5.3.15. Extract Line 5.3.16. Extract Payload ID 5.3.17. Detect Format 5.3.18. Sync Streams 5.3.19. Convert SD Bits 5.3.20. Insert Sync Bits 5.3.21. Remove Sync Bits
5.4. Optional Features x
5.4.1. SMPTE RP168 Switching Support 5.4.2. SD 20-Bit Interface for Dual/Triple Rate 5.4.3. Intel FPGA Video Streaming Interface
5.4.3. Intel FPGA Video Streaming Interface x
5.4.3.1. RGB Pixel Packing 5.4.3.2. YCbCr 444 Pixel Packing 5.4.3.3. YCbCr 422 Pixel Packing 5.4.3.4. Supported Modes
6. GTS SDI II IP Core Signals x
6.1. GTS SDI II IP Core Resets and Clocks 6.2. Transmitter Protocol Signals 6.3. Receiver Protocol Signals 6.4. Transceiver Signals 6.5. Transmitter Streaming Video and Control Signals 6.6. Receiver Streaming Video and Control Signals
6.2. Transmitter Protocol Signals x
6.2.1. Image Mapping
6.3. Receiver Protocol Signals x
6.3.1. rx_format
7. GTS SDI II IP Core Design Considerations x
7.1. Transceiver Handling Guidelines 7.2. Dual Simplex Merging Tool (DS tool)
7.1. Transceiver Handling Guidelines x
7.1.1. Handling Transceiver in Agilex™ 5 Devices
7.1.1. Handling Transceiver in Agilex™ 5 Devices x
7.1.1.1. System PLL Clocking Mode 7.1.1.2. Unused Transceiver Tiles 7.1.1.3. SmartVID Settings
7.2. Dual Simplex Merging Tool (DS tool) x
7.2.1. Using the DS Tool
8. GTS SDI II IP Core Testbench and Design Examples x
8.1. Design Examples for Agilex™ 5 Devices
1. GTS SDI II IP Quick Reference
2. GTS SDI II IP Core Overview
3. GTS SDI II IP Core Getting Started
4. GTS SDI II IP Parameters
5. GTS SDI II IP Core Functional Description
6. GTS SDI II IP Core Signals
7. GTS SDI II IP Core Design Considerations
8. GTS SDI II IP Core Testbench and Design Examples
9. Document Revision History for the GTS SDI II IP User Guide

5.3.20. Insert Sync Bits

Inserting sync bits prevents long runs of 0s.

Repeating patterns of 3FF or 000h for 6G-SDI and 12G-SDI video standards in the 10-bit parallel interface may result in a long run of zeros feeding the scrambling polynomial. A long run of zeros goes up to a length of 160 "1"s and 339 "0"s, which may cause the generation of the pothole pathological condition.

To prevent long runs, this feature modifies the 10-bit parallel interface data stream. It replaces the two LSBs of repeated 3FF or 000 code words with sync-bit values of 10b for 000h words and 01b for 3FFh words.

Figure 16. Sync Bits

However, to ensure the words are synchronized and aligned in the receiver, this feature retains one complete sequence of preambles (3FFh 000h 000h) without modification.

Figure 17. Sync Bits Insertion Process
Level Two Title