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    • 51. 发明授权
    • Computer system having flash memory BIOS which can be accessed remotely while protected mode operating system is running
    • 具有闪存BIOS的计算机系统,其可在受保护模式操作系统运行时远程访问
    • US06282643B1
    • 2001-08-28
    • US09196563
    • 1998-11-20
    • Daryl Carvis CromerBrandon Jon EllisonHoward J. LockerEric Richard KernRandall Scott Springfield
    • Daryl Carvis CromerBrandon Jon EllisonHoward J. LockerEric Richard KernRandall Scott Springfield
    • G06F945
    • G06F9/4401
    • Disclosed is a personal computer system which includes a central processing unit (CPU) coupled to a direct access storage device (DASD), a random access memory (RAM), and a LAN controller. A flash memory module is coupled to the CPU and an input/output (IO) bus and includes a basic input output system (BIOS) stored therein. The BIOS is effective for responding to the energization of the computer system by initiating a power on self test (POST). The BIOS is further operative on completion of the POST for transferring a portion of BIOS from the module to the RAM and for transferring control of the of the computer system to the BIOS portion. The portion of BIOS is operative to load a protected mode operating system (OS) into RAM and transfer control to the OS. The system further includes a logic circuit coupled to the flash memory module and the IO bus. A communication subsystem is coupled to the IO bus, the logic circuit and the flash memory for allowing the remote computer to access the BIOS in flash memory while the protected mode OS is running.
    • 公开了一种个人计算机系统,其包括耦合到直接存取存储设备(DASD),随机存取存储器(RAM)和LAN控制器的中央处理单元(CPU)。 闪存模块耦合到CPU和输入/输出(IO)总线,并且包括存储在其中的基本输入输出系统(BIOS)。 BIOS通过启动电源自检(POST)来响应计算机系统的通电。 在完成POST以将BIOS的一部分从模块传送到RAM并用于将计算机系统的控制传送到BIOS部分的同时,BIOS进一步操作。 BIOS的部分操作是将保护模式操作系统(OS)加载到RAM中,并将控制传输到OS。 该系统还包括耦合到闪存模块和IO总线的逻辑电路。 通信子系统耦合到IO总线,逻辑电路和闪存,用于允许远程计算机在保护模式OS正在运行时访问闪存中的BIOS。