pCI总线是目前最为流行的一种局部性总线 通过对pCI总线一些典型功能的分析以及时序的阐述，利用VetilogHDL设计了一个将非pCI功能设备转接到PC1总线上的IP Core 同时，通过在ModeISim SE PLUS 6．0 上运行测试程序模块，得到了理想的仿真数据波形，从软件上证明了功能的实现。
上传时间： 2014-12-30
上传用户：himbly
The pCI Special Interest Group disclaims all warranties and liability for the use of this document and the information contained herein and assumes no responsibility for any errors that may appear in this document, nor does the pCI Special Interest Group make a commitment to update the information contained herein.
上传时间： 2013-11-01
上传用户：KSLYZ
作为一种独立于处理器的局部总线,pCI非常适用于网络适配器、硬盘驱动器、全动态视频卡、图形卡及各类高速外设。据称,目前有90%的Pentium处理器采用pCI做为系统总线。
上传时间： 2013-11-07
上传用户：liaocs77
pCI Express是由Intel，Dell，Compaq，IBM，Microsoft等pCI SIG联合成立的Arapahoe Work Group共同草拟并推举成取代pCI总线标准的下一代标准。pCI Express利用串行的连接特点能轻松将数据传输速度提到一个很高的频率，达到远远超出pCI总线的传输速率。一个pCI Express连接可以被配置成x1，x2，x4，x8，x12，x16和x32的数据带宽。x1的通道能实现单向312.5 MB／s（2.5 Gb／s）的传输速率。Xilinx公司的Virtex5系列FPGA芯片内嵌pCI-ExpressEndpoint Block硬核，为实现单片可配置pCI-Express总线解决方案提供了可能。 本文在研究pCI-Express接口协议和pCI-Express Endpoint Block硬核的基础上，使用Virtex5LXT50 FPGA芯片设计pCI Express接口硬件电路，实现pCI-Express数据传输
上传时间： 2013-12-27
上传用户：wtrl
The Virtex-4 features, such as the programmable IDELAY and built-in FIFO support, simplifythe bridging of a high-speed, pCI-X core to large amounts of DDR-SDRAM memory. Onechallenge is meeting the pCI-X target initial latency specification. pCI-X Protocol Addendum tothe pCI Local Bus Specification Revision 2.0a ([Ref 6]) dictates that when a target signals adata transfer, "the target must do so within 16 clocks of the assertion of FRAME#." pCItermination transactions, such as Split Response/Complete, are commonly used to meet thelatency specifications. This method adds complexity to the design, as well as additional systemlatency. Another solution is to increase the ratio of the memory frequency to the pCI-X busfrequency. However, this solution increases the required power and clock resource usage.
上传时间： 2013-11-24
上传用户：18707733937
pCI-pCI 桥启动时，一般需要从EEPROM 预读取配置数据。更改EEPROM中的数据一般需要专用的烧结器，这给调试过程带来不便。尤其是采用表贴封装的EEPROM。本文以Intel 公司的Dec21554pCI-pCI 桥为例，介绍一种在线读写EEPROM 的方法。EEPROM选用的是ATMEL 公司生产的AT93LC66，4Kbit，按512×8bit 组织。
上传时间： 2013-11-08
上传用户：trepb001
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
pCI-E是一种高速传输总线形式。
上传时间： 2013-12-18
上传用户：宋桃子
pCI-1734快速安装使用手册pCI-1734快速安装使用手册pCI-1734快速安装使用手册pCI-1734快速安装使用手册pCI-1734快速安装使用手册pCI-1734快速安装使用手册pCI-1734快速安装使用手册
上传时间： 2013-10-22
上传用户：ssz1990
本文介绍一种基于pCI Express 总线的高速数据采集卡的设计方案及功能实现。给出系统的基本结构及单元组成，重点阐述系统硬件设计的关键技术和本地总线的控制逻辑，详细探讨了基于DriverWorks 的设备驱动程序的开发以及上层应用软件的设计。该系统通过实践验证，可用于卫星下行高速数据的接收并可适用于其他高速数据采集与处理系统。关键词：pCI Express 总线 pCIE PEX8311 DMA 板卡驱动 随着空间科学和空间电子学技术的飞速发展，空间科学实验的种类和数量以及科学实验所产生的数据量不断增加。为了使地面接收处理系统能够实时处理和显示科学图像数据，必须要设计出新的地面数据接收处理系统，实现大量高速数据的正确接收采集、处理以及存储。为了满足地面系统的要求，并为以后的计算机系统升级提供更广阔的空间，本系统拟采用第三代I/O 互连技术pCI Express（简称pCI-E）作为本数据采集卡的进机总线形式。本文通过对pCI-E 总线专用接口芯片PLX 公司的PEX8311 性能分析，特别是对突发读、写和DMA读操作的时序研究，设计出本地总线的可编程控制逻辑，并详细讨论了整个pCI-E 高速数据采集卡的硬件设计方案，以及WDM 驱动程序和上层应用程序的设计方法。
上传时间： 2013-10-28
上传用户：tianyi996
