Xilinx PCI v3.0 manual About This Guide, Guide Contents

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Preface

About This Guide

The PCI Getting Started Guide provides information about the LogiCORE™ Peripheral Component Interconnect (PCI) interface, which provides a fully verified, pre-implemented PCI bus interface available in both 32-bit and 64-bit versions.

This guide discusses the supported design flows for 32-bit and 64-bit PCI interfaces based on the Virtex™ and Spartan™ architectures, and provides an example design in both Verilog-HDL and VHDL.

Guide Contents

This manual contains the following chapters:

•Chapter 1, “Getting Started” describes the core and related information, including additional resources, technical support, and submitting feedback to Xilinx.

•Chapter 2, “Installing and Licensing the Core” provides information about installing and licensing the core.

•Chapter 3, “Family Specific Considerations” provides information about design considerations specific to the PCI interface targeting Virtex and Spartan devices.

•Chapter 4, “Functional Simulation” describes how to simulate the example design using the supported functional simulation tools, including Cadence NC-Verilog v5.0 and Model Technology ModelSim v5.7b.

•Chapter 5, “Synthesizing a Design” how to synthesize the example design using the supported synthesis tools, including Synplicity Synplify v7.3, Exemplar LeonardoSpectrum v2003a, and Xilinx XST.

•Chapter 6, “Implementing a Design” describes how to implement the example design using the supported FPGA implementation tools included with the ISE Foundation v7.1i software.

•Chapter 7, “Timing Simulation” describes how to perform timing simulation using the supported post-route timing simulation tools, including Cadence NC-Verilog v5.0 and Model Technology ModelSim v5.7b.

PCI v3.0.151 Getting Started Guide

www.xilinx.com

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UG157 August 31, 2005

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Contents UG157 August 31 LogiCORE PCIVersion Revision PCI v3.0.151 Getting Started Guide UG157 August 31Changes prior to v3.0, refer to v2.2.1 template set PCI v3.0.151 Getting Started Guide Table of Contents Synthesizing a Design About This Guide Guide ContentsConventions Additional ResourcesTypographical Conventions Meaning or Use Example Online DocumentPreface About This Guide About the Example Design Getting StartedAdditional Documentation Document Technical SupportFeedback PCI Interface CoreInstalling the Core Installing and Licensing the CoreSystem Requirements Manual Installation Core Generator IP Update Core Generator IP Updates InstallerInstalling and Licensing the Core Direct Download of Standalone Core Installing the CoreDirect Download Licensing OptionsEvaluation FullInstalling Your License File Installing Your License FileInstalling and Licensing the Core Design Support Family Specific ConsiderationsGuide File 2S200-FG456-6C 33 MHz Pcimlc333s V300E-BG432-6C 66 MHz Pcimlc663d 2VP20-FF1152-6C/I 66 MHz Pcimlc663s 4VSX35-FF668-10C/I 33 MHz Pcimlc333g 2S50-PQ208-5C 33 MHz Pcimlc333s 2S300E-PQ208-6C 33 MHz Pcimlc333s 3S1200E-FG400-4C/I 33 MHz Pcimlc333s 4VSX35-FF668-11C/I 66 MHz Pcimlc663r Guide File Information Components Connections Family Specific ConsiderationsBus Width Detection Device InitializationInput Delay Buffers Datapath Output Clock Enable3Delay Buffer Settings Implementation Delay Setting Input Delay BuffersRegional Clock Usage Regional Clocking Illustration Regional Clock UsageBus Clock Usage Electrical Compliance Electrical ComplianceRegion Generating Bitstreams Generating BitstreamsUG157 August 31 Cadence NC-Verilog Functional SimulationVerilog Model Technology ModelSimFunctional Simulation Model Technology ModelSim VhdlInstall Path/vhdl/example/funcsim Synplicity Synplify Synthesizing a Design6Main Project Window Synthesizing a Design8Files to Add LogiCORE Files Synplicity Synplify10Main Project Window with Source Files 11Options for Implementation Device 12Create a New Project 14Select Files to Add Library 16Project Window with Source Files Exemplar LeonardoSpectrum Exemplar LeonardoSpectrumXilinx XST ISE Foundation Implementing a DesignImplementing a Design Timing Simulation Timing Simulation Install Path/vhdl/example/postsim Timing Simulation

PCI v3.0 specifications

Xilinx PCI Express (PCIe) v3.0 technology represents a significant leap in performance and efficiency for high-speed data transfer applications. As a critical interface standard for connecting peripheral devices to a host system, PCIe v3.0 introduces numerous enhancements that ensure faster data rates, increased bandwidth, and lower latency, meeting the rigorous demands of modern computing environments.

One of the standout features of PCIe v3.0 is its increased data transfer rate, which doubles the bandwidth compared to its predecessor, PCIe v2.0. This version supports a maximum theoretical bandwidth of 8 GT/s (gigatransfers per second) per lane, leading to an aggregate bandwidth of up to 32 GB/s with four lanes operating simultaneously, which is crucial for applications in data-intensive fields such as telecommunications, data centers, and high-performance computing.

Xilinx’s PCIe v3.0 solutions incorporate advanced error-handling mechanisms and improved power management. The technology employs a robust 128/130b encoding scheme that minimizes overhead while ensuring data integrity. Additionally, PCIe v3.0 supports native high-speed signaling, which not only reduces power consumption but also enhances signal quality, leading to greater reliability in data transmission.

The flexibility of Xilinx’s PCIe v3.0 implementation makes it ideal for various applications, including artificial intelligence, machine learning, and video processing, where rapid data throughput is paramount. Moreover, Xilinx provides extensive support through its Vivado Design Suite, enabling developers to easily integrate PCIe functionality into their designs while optimizing performance for specific applications through customizable settings.

Another key characteristic is the backward compatibility with earlier PCIe versions. This ensures that existing hardware can leverage new capabilities without necessitating a complete overhaul of the infrastructure, enhancing investment protection for users. The inclusion of additional features such as enhanced message signaling and the ability to support up to 64 thousand in-flight transactions further boosts the efficiency of data handling in a multi-threaded environment.

In summary, Xilinx PCI Express v3.0 technology is a powerful solution that combines high bandwidth, reduced latency, and enhanced reliability, making it an essential component for advanced computing architectures. Its robust features, coupled with Xilinx’s design tools and support, provide developers with the resources needed to push the boundaries of data transfer capabilities in a growing range of applications.
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