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.
上傳時間: 2014-01-24
上傳用戶:s363994250
program to trasmit data to a TI92 with the TI Graph-Link
標簽: Graph-Link program trasmit data
上傳時間: 2015-01-03
上傳用戶:youke111
C詞法分析器實現,AOE網絡算法實現,KRUSKAL算法實現,PRIM算法實現,計算機圖形學影線填充算法(鍵盤坐標輸入),計算機圖形學影線填充算法(鼠標輸入),人工智能A*算法實現的C語言程序
上傳時間: 2015-01-05
上傳用戶:hwl453472107
一個利用中斷修改后進行的A/D采集功能的使用軟件.
上傳時間: 2015-01-06
上傳用戶:LIKE
CSL is a programming language with C syntax and comprehensive libraries. The compact scripting engine can also be embedded into your own applications as a powerful macro language. Windows Distribution utilities.
標簽: comprehensive programming libraries scripting
上傳時間: 2013-11-27
上傳用戶:xuanchangri
a set of cross-platform tools that is useful for programming the GBA written in Java.
標簽: cross-platform programming written useful
上傳時間: 2015-01-06
上傳用戶:yd19890720
DEbug 關于制作瑞星殺毒軟件密鑰盤的源碼 MOV BX,200 ;內存基址(0面) MOV DH,00 ;磁頭號00 MOV DL,00 ;驅動器號00(A盤) MOV CX,4F01 ;4F(即79)號磁道01號扇區 即(CH=4F CL=01) MOV AH,05 ;格式化磁道 MOV AL,09 ;連續讀取9個扇區 INT 13 ;調用13號中斷 INT 3 MOV BX,300 ;內存基址(1面) MOV DH,01 ;磁頭號01 MOV DL,00 ;驅動器號00(A盤) MOV CX,4F01 ;4F(即79)號磁道01號扇區 即(CH=4F CL=01) MOV AH,05 ;格式化磁道 MOV AL,09 ;連續讀取9個扇區 INT 13 ;調用13號中斷 INT 20 ;返回dos 初學匯編,請各位多多指教!
上傳時間: 2015-01-07
上傳用戶:我干你啊
A*
標簽:
上傳時間: 2013-12-20
上傳用戶:569342831
題目:利用條件運算符的嵌套來完成此題:學習成績>=90分的同學用A表示,60-89分之間的用B表示,60分以下的用C表示。 1.程序分析:(a>b)?a:b這是條件運算符的基本例子。
上傳時間: 2015-01-08
上傳用戶:lifangyuan12
CGAL is a collaborative effort of several sites in Europe and Israel. The goal is to make the most important of the solutions and methods developed in computational geometry available to users in industry and academia in a C++ library. The goal is to provide easy access to useful, reliable geometric algorithms
標簽: collaborative several Europe Israel
上傳時間: 2015-01-09
上傳用戶:refent