随着集成电路设计技术的发展,在片上系统(SoC)中,越来越多地使用各种功能IP核部件构成系统。总线是这些部件连接的主要方式,目前有数家公司和组织研发了多种面向SoC设计的总线系统。本文介绍SoC中常用的三种片上总线AMBA、Wishbone和Avalon,分析和比较其特性,并针对其不同的特点阐述其使用范围。 With the development of integrated circuit design technology, system-on-chip (SoC) systems are increasingly being used with various functional IP core components. Bus is the main way to connect these components, there are several companies and organizations have developed a variety of bus systems designed for SoC. This article describes the SoC commonly used three on-chip bus AMBA, Wishbone and Avalon, analysis and comparison of its characteristics, and its different characteristics of its use.