Xilinx 1.8 User Manual

LogiCORE™ IP Endpoint Block Plus v1.8 for PCI Express®

Getting Started Guide

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Xilinx is disclosing this user guide, manual, release note, and/or specification (the "Documentation") to you solely for use in the development of designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit the Documentation in any form or by any means including, but not limited to, electronic, mechanical, photocopying, recording, or otherwise, without the prior written consent of Xilinx. Xilinx expressly disclaims any liability arising out of your use of the Documentation. Xilinx reserves the right, at its sole discretion, to change the Documentation without notice at any time. Xilinx assumes no obligation to correct any errors contained in the Documentation, or to advise you of any corrections or updates. Xilinx expressly disclaims any liability in connection with technical support or assistance that may be provided to you in connection with the Information.

THE DOCUMENTATION IS DISCLOSED TO YOU “AS-IS” WITH NO WARRANTY OF ANY KIND. XILINX MAKES NO OTHER WARRANTIES, WHETHER EXPRESS, IMPLIED, OR STATUTORY, REGARDING THE DOCUMENTATION, INCLUDING ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT OF THIRD-PARTY RIGHTS. IN NO EVENT WILL XILINX BE LIABLE FOR ANY CONSEQUENTIAL, INDIRECT, EXEMPLARY, SPECIAL, OR INCIDENTAL DAMAGES, INCLUDING ANY LOSS OF DATA OR LOST PROFITS, ARISING FROM YOUR USE OF THE DOCUMENTATION.

© 2006–2008 Xilinx, Inc. All rights reserved.

XILINX, the Xilinx logo, the Brand Window, and other designated brands included herein are trademarks of Xilinx, Inc. All other trademarks are the property of their respective owners.

Revision History

The following table shows the revision history for this document.

Date	Version	Revision
10/23/06	1.1	Initial Xilinx release.
2/15/07	2.0	Update core to version 1.2; Xilinx tools 9.1i.
5/17/06	3.0	Update core to version 1.3; updated for PCI-SIG compliance.
8/8/07	4.0	Update core to version 1.4; Xilinx tools 9.2i, Cadence IUS v5.8.
10/10/07	5.0	Update core to version 1.5, Cadence IUS v6.1.
3/24/08	6.0	Update core to version 1.6; Xilinx tools 10.1.
4/25/08	7.0	Update core to version 1.7.
6/27/08	8.0	Update core to version 1.8.

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Table of Contents

Preface: About This Guide

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Typographical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Online Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Chapter 1: Introduction

About the Core. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Recommended Design Experience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Additional Core Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Feedback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 2: Licensing the Core

Before you Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 License Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Simulation Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Full . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Obtaining Your License . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Installing Your License File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Chapter 3: Quickstart Example Design

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Simulation Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Implementation Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Example Design Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Generating the Core. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Simulating the Example Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Setting up for Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Running the Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Implementing the Example Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Directory Structure and File Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Example Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 <project directory> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 <project directory>/<component name> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 <component name>/doc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 <component name>/example_design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 <component name>/implement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 implement/results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 <component name>/simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 simulation/dsport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 simulation/functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 simulation/tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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Dual Core Example Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Dual Core Directory Structure and File Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 <component name>/example_design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 example_design/dual_core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 <component name>/simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 simulation/functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 <component name>/implement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Appendix: Additional Design Considerations

Package Constraints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

User Constraints Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Wrapper File Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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Preface

About This Guide

The Endpoint Block Plus for PCI Express® Getting Started Guide provides information about generating an Endpoint Block Plus for PCI Express (PCIe®) core, customizing and simulating the core using the provided example design, and running the design files through implementation using the Xilinx tools.

Contents

This guide contains the following chapters:

•Preface, “About this Guide,” introduces the organization and purpose of this guide and the conventions used in this document.

•Chapter 1, “Introduction,” describes the core and related information, including system requirements, recommended design experience, additional resources, technical support, and submitting feedback to Xilinx.

•Chapter 2, “Licensing the Core” provides instructions for selecting a license option for the core.

•Chapter 3, “Quickstart Example Design,” provides instructions for quickly generating, simulating, and implementing the example design and the dual core example design using the demonstration test bench.

•Appendix, “Additional Design Considerations,” defines additional considerations when implementing the example design.

Conventions

This document uses the following conventions. An example illustrates each convention.

Typographical

The following typographical conventions are used in this document:

Convention	Meaning or Use	Example
	Messages, prompts, and
Courier font	program files that the system	speed grade: - 100
	displays
Courier bold	Literal commands you enter in	ngdbuild design_name
	a syntactical statement

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Preface: About This Guide

	Convention	Meaning or Use	Example
		References to other manuals	See the User Guide for details.
	Italic font
			If a wire is drawn so that it
		Emphasis in text	overlaps the pin of a symbol,
			the two nets are not connected.
	<text in brackets>	User-defined variable for	<component_name>
		directory names.
	Dark Shading	Items that are not supported	Unsupported feature
		or reserved
		An optional entry or	ngdbuild [option_name]
	Square brackets [ ]	parameter. However, in bus
		specifications, such as	design_name
		bus[7:0], they are required.
	Braces { }	A list of items from which you	lowpwr ={on|off}
		must choose one or more
	Vertical bar |	Separates items in a list of	lowpwr ={on|off}
		choices
	Vertical ellipsis		IOB #1: Name = QOUT’
		Repetitive material that has	IOB #2: Name = CLKIN’
	.
			.
	.	been omitted
			.
	.
			.
	Horizontal ellipsis . . .	Omitted repetitive material	allow block block_name
			loc1 loc2 ... locn;
		The prefix ‘0x’ or the suffix ‘h’	A read of address 0x00112975
	Notations	indicate hexadecimal notation	returned 45524943h.
		An ‘_n’ means the signal is	usr_teof_n is active low.
		active low

Online Document

The following linking conventions are used in this document:

	Convention	Meaning or Use	Example
		Cross-reference link to a	See the section “Additional
			Resources” for details.
	Blue text	location in the current
			See “Title Formats” in Chapter
		document
			1 for details.
	Blue, underlined text	Hyperlink to a website (URL)	Go to www.xilinx.com for the
			latest speed files.

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Chapter 1

Introduction

The Endpoint Block Plus for PCI Express is a high-bandwidth, scalable, and reliable serial interconnect building block for use with Virtex™-5 FPGA devices. This core supports Verilog® and VHDL. The example design described in this guide is provided in Verilog and VHDL.

This chapter introduces the core and provides related information, including system requirements, recommended design experience, additional resources, technical support, and submitting feedback to Xilinx.

About the Core

The Endpoint Block Plus for PCIe core is a Xilinx CORE Generator™ IP core, included in the latest IP Update on the Xilinx IP Center. For additional information about the core, see the Block Plus for PCIe product page. For information about obtaining a license for the core, see Chapter 2, “Licensing the Core.”

System Requirements

Windows

•Windows XP® Professional 32-bit/64-bit

•Windows Vista® Business 32-bit/64-bit

Linux

•Red Hat® Enterprise Linux WS v4.0 32-bit/64-bit

•Red Hat® Enterprise Desktop v5.0 32-bit/64-bit (with Workstation Option)

•SUSE Linux Enterprise (SLE) v10.1 32-bit/64-bit

Software

•ISE™ 10.1

Check the release notes for the required Service Pack; ISE Service Packs can be downloaded from www.xilinx.com/support/download/index.htm.

Recommended Design Experience

Although the Endpoint Block Plus for PCIe is a fully verified solution, the challenge associated with implementing a complete design varies depending on the configuration and functionality of the application. For best results, previous experience building high

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Chapter 1: Introduction

performance, pipelined FPGA designs using Xilinx implementation software and User Constraints Files (UCF) is recommended.

Additional Core Resources

For detailed information and updates about the core, see the following documents, available from the Block Plus for PCIe product page unless otherwise noted.

•LogiCORE IP Endpoint Block Plus for PCI Express Data Sheet

•LogiCORE IP Endpoint Block Plus for PCI Express User Guide

•LogiCORE IP Endpoint Block Plus for PCI Express Release Notes (available from the core directory after generating the core)

•Virtex-5 Integrated Endpoint Block for PCI Express Designs User Guide (UG197)

Additional information and resources related to the PCI Express technology are available from the following web sites:

•PCI Express at PCI-SIG

•PCI Express Developer’s Forum

Technical Support

For technical support, go to www.xilinx.com/support. Questions are routed to a team of engineers with expertise using the Endpoint Block Plus for PCI Express core.

Xilinx provides technical support for use of this product as described in the LogiCORE IP Endpoint Block Plus for PCI Express User Guide and the LogiCORE IP Endpoint Block Plus for PCI Express Getting Started Guide. Xilinx cannot guarantee timing, functionality, or support of this product for designs that do not follow these guidelines.

Feedback

Xilinx welcomes comments and suggestions about the core and the accompanying documentation.

Core

For comments or suggestions about the core, please submit a WebCase from www.xilinx.com/support. Be sure to include the following information:

•Product name

•Core version number

•Explanation of your comments

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Feedback

Document

For comments or suggestions about this document, please submit a WebCase from www.xilinx.com/support. Be sure to include the following information:

•Document title

•Document number

•Page number(s) to which your comments refer

•Explanation of your comments

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