BENTLY 3500/92-01-01-00通訊模塊
VMIVME-7740將允許用戶(hù)保持當前BIOS配置或更改此配置以使其更適合用戶(hù)，但此更改只能在初始BIOS引導周期完成后完成。BIOS操作當VMIVME-7780通電時(shí)，控制立即跳轉到BIOS。BIOS啟動(dòng)開(kāi)機自檢（POST）程序，該程序指示微處理器初始化系統內存以及系統的其余部分。BIOS通過(guò)初始化其各自的I/O和內存地址以及中斷請求線(xiàn)來(lái)建立所有板載設備的配置。然后，BIOS在主存儲器中建立一個(gè)中斷向量表，用于中斷處理。本手冊第3章介紹了默認中斷向量表和默認地址映射。最后，BIOS跳轉到硬盤(pán)驅動(dòng)器或軟盤(pán)驅動(dòng)器以執行操作系統的引導程序。這是自定義操作系統可以控制板并繼續自定義配置和/或自定義應用程序的點(diǎn)
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
