Interrupt controller
    6.
    发明授权
    Interrupt controller 失效
    中断控制器

    公开(公告)号:US06192442B1

    公开(公告)日:2001-02-20

    申请号:US09069437

    申请日:1998-04-29

    IPC分类号: G06F1314

    CPC分类号: G06F13/24

    摘要: An interrupt controller includes conductors for receiving interrupt request signals, a memory, a register and control logic. Each of the interrupt request signals are capable of indicating an interrupt request. The memory is capable of storing information about the interrupt request signals, and the register is writable to identify a set of locations of the memory for scanning. The control logic scans the set of locations for interrupt requests and does not scan other locations of the memory for interrupt requests. In some cases, the number of interrupt request signals are exceeds the number of locations. For these cases, information about selected interrupt signals are stored in the locations.

    摘要翻译: 中断控制器包括用于接收中断请求信号的导体,存储器,寄存器和控制逻辑。 每个中断请求信号都能够指示中断请求。 存储器能够存储关于中断请求信号的信息,并且该寄存器是可写的以识别用于扫描的存储器的一组位置。 控制逻辑扫描位置集合用于中断请求,并且不会扫描存储器的其他位置以获取中断请求。 在某些情况下,中断请求信号的数量超过位置数。 对于这些情况,有关所选中断信号的信息存储在位置。