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    Dual mode bus bridge for computer system
    4.
    发明授权
    Dual mode bus bridge for computer system 失效
    计算机系统双模总线桥

    公开(公告)号：US6134622A

    公开(公告)日：2000-10-17

    申请号：US13777

    申请日：1998-01-26

    申请人： Suvansh Kapur ,  Kevin Koschoreck ,  Srinand Venkatesan ,  D. Michael Bell

    发明人： Suvansh Kapur ,  Kevin Koschoreck ,  Srinand Venkatesan ,  D. Michael Bell

    IPC分类号： G06F9/38 ,  G06F13/40 ,  G06F13/38

    CPC分类号： G06F9/3824 ,  G06F13/4045 ,  G06F13/4059 ,  G06F13/4081

    摘要： A bus expander bridge is provided for interfacing first and second external buses (such as PCI buses) to a third bus. The bus expander bridge is configurable in either an independent mode in which the first and second external buses operate independently and a combined mode in which the first and second external buses are combined to create a single bus. The bus expander bridge includes a first set of data queues for routing data between the first external bus and the third bus, and a second set of data queues for routing data between the second external bus and the third bus. The bus expander bridge also includes a controller coupled to the first and second sets of data queues and operating the first and second sets of data queues in parallel for the independent mode. The controller routes even addressed data through the first set of data queues and routes odd addressed data through the second set of data queues for the combined mode.

    摘要翻译： 提供一个总线扩展器桥接器用于将第一和第二外部总线（例如PCI总线）与第三总线接口。 总线扩展器桥可以以独立模式配置，其中第一和第二外部总线独立运行，以及组合模式，其中组合第一和第二外部总线以创建单个总线。 总线扩展器桥包括用于在第一外部总线和第三总线之间路由数据的第一组数据队列，以及用于在第二外部总线和第三总线之间路由数据的第二组数据队列。 总线扩展器桥还包括耦合到第一和第二组数据队列的控制器，并且为独立模式并行地操作第一和第二组数据队列。 控制器通过第一组数据队列路由寻址数据，并通过组合模式的第二组数据队列路由奇数寻址数据。