This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间: 2013-10-15
上传用户:busterman
Arduino 一些资料
标签: Beginning McRoberts Arduino Michael
上传时间: 2014-12-25
上传用户:liulinshan2010
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间: 2014-01-24
上传用户:s363994250
[Linux英文原版图书系列].CHARLES_RIVER_MEDIA-Gnu_Linux_Application_Programming.chm [Linux英文原版图书系列].NO_STARCH-Linux_Enterprise_Cluster.chm [Linux英文原版图书系列].PRENTICE_HALL-Samba3_by_Example_Practical_Exercises_to_Successful_Deployment_Second_Edition.chm [Linux英文原版图书系列].WILEY-Linux_Bible_2005_Edition.pdf [Linux英文原版图书系列].PRENTICE_HALL-The_Official_Samba3_HOWTO_and_Reference_Guide_Second_Edition.chm 中文经典计算机书籍
标签: CHARLES_RIVER_MEDIA-Gnu_Linux_App Linux lication_Programming NO_STARCH
上传时间: 2014-12-22
上传用户:cazjing
keil C编译器注册机. 】 AVR指令表.rar - AVR PDF指令集(2004-11-15,PDF, 219KB, 下载1次, 提供者nana)【查看评论】 LC72131.rar - LC72131 PDF (2004-11-15, PDF, 335KB, 下载1次, 提供者nana)【查看评论】 Beginning Linux ...
上传时间: 2013-12-10
上传用户:gdgzhym
[書籍] Microsoft SQL Server 2005 Reporting Services For Dummies 書籍名稱:Microsoft SQL Server 2005 Reporting Services For Dummies 出版社 :Wiley 作者 :Mark Robinson 書籍語言:English 書籍類型:教學 - 軟件教學 檔案格式:PDF 檔案大小:7.75MB 發行日期:December 2005
上传时间: 2015-05-04
上传用户:小鹏
The program SPLAY is a pascal to C translation of a program that Kim Kokkonen wrote in Turbo Pascal to implement Splay Trees. This program compresses and decompresses files, and does a pretty good job of it. Contents: SPLAY.PAS Original TP source code SPLAY.C Translation of code to C SPLAY.EXE Compiled version of SPLAY.C (small model) README.DOC You are looking at it Read the comments at the beginning of SPLAY.C for more info.
标签: program translation Kokkonen pascal
上传时间: 2015-05-05
上传用户:rocwangdp
In this book, we aim to give you an introduction to a wide variety of topics important to you as a developer using UNIX. The word Beginning in the title refers more to the content than to your skill level. We ve structured the book to help you learn more about what UNIX has to offer, however much experience you have already. UNIX programming is a large field and we aim to cover enough about a wide range of topics to give you a good beginning in each subject.
标签: introduction important you to
上传时间: 2013-12-22
上传用户:youmo81
This book is about the management of business processes. This is certainly not a new topic. Since the beginning of the Industrial Revolution, it has been written about from every possible point of view—economic, sociological, psychological, accountancy, mechanical engineering and business administration. In this book, we examine the management of business processes from the perspective of computing, or—to put it more broadly—of information technology. The reason is that information technology has made huge leaps forward in recent years, resulting in the creation of completely new ways of organizing business processes. The development of generic software packages for managing business processes—so-called workflow management systems (WFMS)—is particularly important in this respect.
标签: This management certainly processes
上传时间: 2013-11-29
上传用户:shus521
In this edition, the majority of the book is dedicated to covering the Winsock API. Chapter 1 starts with an introduction to Winsock and is specifically geared for the beginning Winsock programmer. This chapter covers all the basics and introduces Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) through simple samples, as well as providing a roadmap to advanced Winsock topics covered in other chapters. For the sake of simplicity, Chapter 1 covers the IPv4 protocol.
标签: the dedicated covering majority
上传时间: 2015-09-08
上传用户:ommshaggar