Direct Interface Bus (DIB) Intel® Stratix® 10 FPGA IP User Guide

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ID 683142
Date 3/18/2021
Public
Document Table of Contents
Document Table of Contents x
1. About the DIB Intel® Stratix® 10 FPGA IP User Guide 2. About the DIB Intel® Stratix® 10 FPGA IP 3. Functional Description 4. Creating and Parameterizing the Intel FPGA IP 5. Designing with the DIB Intel® Stratix® 10 FPGA IP 6. DIB Intel® Stratix® 10 FPGA IP Interface 7. DIB Intel® Stratix® 10 FPGA IP Parameters 8. Document Revision History for the DIB Intel® Stratix® 10 FPGA IP User Guide A. Die-to-Die Mapping B. Example Pin Locations for One DIB Channel
2. About the DIB Intel® Stratix® 10 FPGA IP x
2.1. Release Information 2.2. Device Support for DIB Intel® Stratix® 10 FPGA IP 2.3. DIB Intel® Stratix® 10 FPGA IP Features 2.4. Latency
3. Functional Description x
3.1. Bypass Mode 3.2. Asynchronous Mode 3.3. Synchronous Mode
3.1. Bypass Mode x
3.1.1. AUX Channel Settings
4. Creating and Parameterizing the Intel FPGA IP x
4.1. IP Catalog and Parameter Editor 4.2. Creating a New Intel® Quartus® Prime Project 4.3. Parameterizing and Generating the IP 4.4. Compiling the DIB Intel® Stratix® 10 FPGA IP Design 4.5. Programming an FPGA Device
5. Designing with the DIB Intel® Stratix® 10 FPGA IP x
5.1. Reset Architecture 5.2. Clocking in Asynchronous and Synchronous Modes 5.3. Timing Closure 5.4. Setting Bypass, Asynchronous, and Synchronous Modes in One DIB Instance
5.2. Clocking in Asynchronous and Synchronous Modes x
5.2.1. Clocking Options 5.2.2. Clock Synchronization DUT Clock Synchronization between 2 Intel® Stratix® 10 GX 10M Dies DIB/System Clock Synchronization between 2 Intel® Stratix® 10 GX 10M Dies
5.3. Timing Closure x
5.3.1. Timing Transfer for Bypass Mode 5.3.2. Timing Transfer for TDM Modes
6. DIB Intel® Stratix® 10 FPGA IP Interface x
6.1. DIB Intel® Stratix® 10 FPGA IP Clocks 6.2. DIB Intel® Stratix® 10 FPGA IP User Interface Signals
1. About the DIB Intel® Stratix® 10 FPGA IP User Guide
2. About the DIB Intel® Stratix® 10 FPGA IP
3. Functional Description
4. Creating and Parameterizing the Intel FPGA IP
5. Designing with the DIB Intel® Stratix® 10 FPGA IP
6. DIB Intel® Stratix® 10 FPGA IP Interface
7. DIB Intel® Stratix® 10 FPGA IP Parameters
8. Document Revision History for the DIB Intel® Stratix® 10 FPGA IP User Guide
A. Die-to-Die Mapping
B. Example Pin Locations for One DIB Channel

5.2.2. Clock Synchronization

Intel recommends you to follow the board design guidelines for clock synchronization.

DUT Clock Synchronization between 2 Intel® Stratix® 10 GX 10M Dies

To synchronize the DUT reference clock, Intel recommends 20 ps.

DIB/System Clock Synchronization between 2 Intel® Stratix® 10 GX 10M Dies

The DIB clock and the system clock on the DIB RX side derive from the source synchronous clock on the TX side.
  • The DIB clock on the DIB RX channel operates at the same frequency as the DIB clock on the DIB TX channel.
  • The system clock on the RX dies is a divided clock from the source synchronous DIB clock to match the frequency of the system clock on the TX die. The clock divider supports division by 1 up to 16.
    Note: The duty cycle is 60:40 for the odd divider, and you need to consider this duty cycle if any negative-edge flops are used.
  • The TX version and RX version of the system clock on the same die are not synchronous because the clocks are from different IOPLLs on different dies.
Figure 15. Clocking Synchronization Using Different IOPLLs
Level Two Title