Turbo Intel® FPGA IP User Guide

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ID 683734
Date 4/01/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the Turbo Intel® FPGA IP 2. Getting Started with the Turbo Intel® FPGA IP 3. Parameter Settings 4. Turbo Intel® FPGA IP Functional Description A. Turbo IP User Guide Document Archives 5. Document Revision History for Turbo Intel® FPGA IP User Guide
1. About the Turbo Intel® FPGA IP x
1.1. Turbo Intel® FPGA IP Features 1.2. Turbo Intel® FPGA IP Device Family Support 1.3. Turbo IP Performance and Resource Utilization 1.4. Turbo Code Licensing Disclaimer 1.5. Release Information
2. Getting Started with the Turbo Intel® FPGA IP x
2.1. Installing and Licensing Intel® FPGA IP Cores 2.2. IP Catalog and Parameter Editor 2.3. Specifying the IP Core Parameters and Options 2.4. Simulating Intel® FPGA IP Cores 2.5. Simulating the IP with the RTL Simulator 2.6. Simulating the Turbo IP with the C-Model 2.7. Simulating the Turbo IP with MATLAB
2.1. Installing and Licensing Intel® FPGA IP Cores x
2.1.1. Intel® FPGA IP Evaluation Mode 2.1.2. Turbo IP Timeout Behavior
2.3. Specifying the IP Core Parameters and Options x
2.3.1. IP Core Generation Output ( Quartus® Prime Pro Edition)
4. Turbo Intel® FPGA IP Functional Description x
4.1. Turbo Encoder 4.2. Turbo Decoder 4.3. 4.4. Turbo Throughput
4.1. Turbo Encoder x
4.1.1. Turbo Encoder Data Format 4.1.2. Turbo Encoder Latency Calculation
4.2. Turbo Decoder x
4.2.1. Turbo Decoder Data Format 4.2.2. CRC24A or CRC24B Early Termination 4.2.3. Decoder Latency Calculation 4.2.4. Error Correction Performance for the Turbo Decoder
1. About the Turbo Intel® FPGA IP
2. Getting Started with the Turbo Intel® FPGA IP
3. Parameter Settings
4. Turbo Intel® FPGA IP Functional Description
A. Turbo IP User Guide Document Archives
5. Document Revision History for Turbo Intel® FPGA IP User Guide

4.1.2. Turbo Encoder Latency Calculation

The encoding delay D is the number of clock cycles the IP core consumes to encode an entire block of data. If K is the block size, D = K/Nenc + 14, where Nenc is the number of parallel encoder. The encoding delay does not include the loading delay, which requires the same number of clock cycles as the block size K to load the input data to the input buffer.

For example:

  • When K = 6144, and Nenc = 8, D = 6144/8 +14 = 782
  • When K = 40, and Nenc = 1, D = 40 + 14 = 54

You can calculate the encoding latency (the time taken by the encoder to encode an entire block) using the following equation:

L= D/f s

Where f is the system clock speed.

The value of 4 or 8 is only available in Arria® 10, Stratix® 10, and Agilex™ 7 device variations in Quartus® Prime Pro Edition software.
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