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    • 7. 发明授权
    • Apparatus and method for delivering interrupts via an APIC bus to IA-32 processors
    • 通过APIC总线将中断传送到IA-32处理器的装置和方法
    • US06470408B1
    • 2002-10-22
    • US09292131
    • 1999-04-14
    • John A. MorrisonRobert J. BlakelyLeo J. EmbryMichael S. Allison
    • John A. MorrisonRobert J. BlakelyLeo J. EmbryMichael S. Allison
    • G06F1324
    • G06F13/24
    • An apparatus and a method are provided to distribute interrupts from a system bus to Intel® Architecture (IA)-32 applications processors. The apparatus includes a bridge that couples a processor bus to the system bus. In addition, the bridge is coupled to an advanced programmable interrupt controller (APIC) by an APIC bus. The bridge monitors the system bus for interrupts and converts selected interrupt transactions into APIC messages. The bridge then sends the APIC messages to the APIC bus. Each of the applications processors is also coupled to one of many APIC buses. The applications processor that is the target of the interrupt transaction receives the APIC message and executes an interrupt handler routine. The apparatus and method also incorporate interrupt transaction buffering and throttling.
    • 提供了一种装置和方法来将中断从系统总线分配到Intel(R)Architecture(IA)-32应用处理器。 该装置包括将处理器总线耦合到系统总线的桥。 此外,桥接器通过APIC总线耦合到高级可编程中断控制器(APIC)。 桥接器监视系统总线进行中断,并将所选中断事务转换为APIC消息。 然后桥接器将APIC消息发送到APIC总线。 每个应用处理器也耦合到许多APIC总线之一。 作为中断事务的目标的应用处理器接收APIC消息并执行中断处理程序。 该装置和方法还包括中断事务缓冲和限制。