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    • 38. 发明授权
    • Method and apparatus for signaling power management events between two
devices
    • 用于在两个设备之间发送电源管理事件的方法和装置
    • US5890004A
    • 1999-03-30
    • US777550
    • 1996-12-30
    • David I. Poisner
    • David I. Poisner
    • G06F1/32
    • G06F1/3203
    • A method and apparatus for signaling power management events between integrated circuit devices in a computer system. The method includes the step of receiving in a first device one of a plurality of signals indicating a power management event that affects power management of a second device. The method also includes the step of encoding the signal received and transmitting the encoded signal to a power management device. The encoded signal is decoded in the power management device and a particular power management signal is transmitted to the second device from the power management device. In one embodiment, the step of encoding includes configuring a plurality of serial bits for transmission to the power management device, wherein the particular configuration of the serial bits indicates particular power management information.
    • 一种用于在计算机系统中的集成电路装置之间用于指示电力管理事件的方法和装置。 该方法包括在第一设备中接收指示影响第二设备的电源管理的电源管理事件的多个信号之一的步骤。 该方法还包括对接收到的信号进行编码并将编码信号发送到电力管理装置的步骤。 编码信号在电力管理装置中被解码,并且特定的电力管理信号从电力管理装置发送到第二装置。 在一个实施例中,编码步骤包括配置多个串行比特以传输到功率管理设备,其中串行比特的特定配置表示特定的功率管理信息。
    • 39. 发明授权
    • System for providing first type access to register if processor in first
mode and second type access to register if processor not in first mode
    • 用于提供第一类访问的系统,如果处理器处于第一模式并且第二类型访问则注册处理器不处于第一模式
    • US5729760A
    • 1998-03-17
    • US667789
    • 1996-06-21
    • David I. Poisner
    • David I. Poisner
    • G06F13/10G06F9/38G06F15/00G06F15/02
    • G06F9/3869
    • A method of providing access to an input/output (I/O)-mapped register of a computer system is described. The computer system includes a processor operable in a system management mode (SMM), in which the processor accesses a dedicated system management memory space, a real mode, a protected mode and a virtual 8086 mode. The method includes the steps of firstly receiving an access request at the I/O-mapped register. Logic circuitry associated with the I/O-mapped register then determines whether the processor is operating in SMM by examining the status of a system management interrupt acknowledge (SMIACT#) output of the processor. If the logic circuitry determines that the processor is operating in SMM, a first, unrestricted type of access by the processor to the I/O-mapped register is provided. Alternatively, if the logic circuitry determines that the processor is not operating in SMM, a second, restricted type of access by the processor to the I/O-mapped register is provided. If the first, unrestricted type of access is provided to the processor, it performs an operation, under the direction of code stored in the dedicated system management memory address space, on the contents of the I/O-mapped register.
    • 描述了提供对计算机系统的输入/输出(I / O)映射寄存器的访问的方法。 计算机系统包括可以以系统管理模式(SMM)操作的处理器,其中处理器访问专用系统管理存储器空间,实模式,保护模式和虚拟8086模式。 该方法包括首先在I / O映射寄存器处接收访问请求的步骤。 与I / O映射寄存器相关联的逻辑电路然后通过检查处理器的系统管理中断确认(SMIACT#)输出的状态来确定处理器是否在SMM中运行。 如果逻辑电路确定处理器在SMM中操作,则提供处理器对I / O映射寄存器的第一种无限制类型的访问。 或者,如果逻辑电路确定处理器不在SMM中操作,则提供处理器对I / O映射寄存器的第二种限制类型的访问。 如果向处理器提供第一种不受限制的访问类型,则在存储在专用系统管理存储器地址空间中的代码的方向上执行对I / O映射寄存器的内容的操作。