BENTLY 3500/92-01-01-00通讯模块
VMIVME-7740将允许用户保持当前BIOS配置或更改此配置以使其更适合用户，但此更改只能在初始BIOS引导周期完成后完成。BIOS操作当VMIVME-7780通电时，控制立即跳转到BIOS。BIOS启动开机自检（POST）程序，该程序指示微处理器初始化系统内存以及系统的其余部分。BIOS通过初始化其各自的I/O和内存地址以及中断请求线来建立所有板载设备的配置。然后，BIOS在主存储器中建立一个中断向量表，用于中断处理。本手册第3章介绍了默认中断向量表和默认地址映射。最后，BIOS跳转到硬盘驱动器或软盘驱动器以执行操作系统的引导程序。这是自定义操作系统可以控制板并继续自定义配置和/或自定义应用程序的点
The VMIVME-7740 will allow the user to either maintain the current BIOS configuration or alter this configuration to be more user specific, but this alteration can only be accomplished after the initial BIOS boot cycle has completed.BIOS Operations When the VMIVME-7740 is powered on, control immediately jumps to the BIOS. The BIOS initiates a Power-on Self-Test (POST) program, which instructs the microprocessor to initialize system memory as well as the rest of the system. The BIOS establishes the configuration of all on-board devices by initializing their respective I/O and Memory addresses and interrupt request lines. The BIOS then builds an interrupt vector table in main memory, which is used for interrupt handling. The default interrupt vector table and the default address map are described in Chapter 3 of this manual. Finally, the BIOS jumps to the hard drive or floppy drive to execute the operating system’s boot program. This is the point at which a custom operating system may take control of the board and proceed with a custom configuration and/or custom application
