以太网、PCIe和Rapid IO高速总线比较分析

摘要

There are many methods in connection components of embedded system,but the most important menthods are the Ethernet,PCIe and Rapid IO.This paper mainly compares and analyzes the protocol structure,bandwidth,topology structure,message protocol,credibility,usability and application scenario of three kinds of bus,which is provided to choose for actual application.%目前在嵌入式系统中有许多连接元件的方法，但最主要的还是以太网、PCI Express（PCIe）和Rapid IO这三种高速串行标准。本文主要从协议层次结构、带宽选项、拓扑结构、数据包协议、可靠性、可用性和应用场景几个方面对这三种总线的特点进行了比较分析，以供在实际应用中选用分析。