公开(公告)号：US5524216A

公开(公告)日：1996-06-04

申请号：US242748

申请日：1994-05-13

申请人： Kenneth K. Chan ,  Thomas B. Alexander ,  Robert E. Naas ,  Julie W. Wu

发明人： Kenneth K. Chan ,  Thomas B. Alexander ,  Robert E. Naas ,  Julie W. Wu

IPC分类号： G06F12/08 ,  G06F12/10 ,  G06F13/36 ,  G06F13/40 ,  G06F15/173

CPC分类号： G06F13/4027

摘要： A computer system has a multi-tiered bus system. The multi-tiered bus system includes one or more local buses and a central bus connected to each local bus by a bus interface. In order to maintain one global view of transaction ordering, the processors on each local bus record bus transactions in an order on which the bus transactions appear on the central bus. To do this, bus transactions which are initiated on any local bus are forwarded to the central bus by the corresponding bus interface. The processors connected to the local bus do not record bus transactions when they are initiated on the local bus. Every transaction which occurs on the central bus is echoed back to every local bus by the corresponding bus interface. Each processor records bus transactions at the time they are echoed back to the local bus.

摘要翻译： 计算机系统具有多层总线系统。 多层总线系统包括一个或多个局部总线和通过总线接口连接到每个局部总线的中央总线。 为了保持交易排序的一个全局视图，每个本地总线上的处理器按照总线事务在中央总线上出现的顺序记录总线事务。 为此，在任何本地总线上启动的总线事务通过相应的总线接口转发到中央总线。 连接到本地总线的处理器在本地总线上启动时不会记录总线事务。 在中央总线上发生的每个事务通过相应的总线接口回传到每个局部总线。 每个处理器在回传到本地总线时记录总线事务。