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目前的多处理机计算机系统中，各节点机通过高速并行总线、利用消息传递进行通讯的分布式多处理机系统，已成为军用机载计算机发展的主要方向．机载MultibusⅡ计算机正是具有这种特点、面向将来机载应用而研制的一种嵌入式、分布式计算机系统．本文论述了MultibusⅡ总线的消息传递通讯机制及MultibusⅡ总线特有的互连空间概念，从多个层次对系统及其软硬件内核进行了全面、细致的分析与设计．
In the current multiprocessor computer system, the distributed multiprocessor system that uses node communication via high-speed parallel buses and uses messaging to communicate has become the main direction for the development of military airborne computers. Airborne Multibus II computer is an embedded and distributed computer system that has such characteristics and is developed for future airborne applications. This paper discusses the communication mechanism of Multibus II bus and the concept of interconnection space unique to Multibus II bus. It analyzes and designs the system and its hardware and software kernel from multiple levels comprehensively and carefully.