AR-B9673 User’s Guide
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4.1 WATCHDOG FOR IRQ15 SIGNAL SETTING
If you program the watchdog to generate IRQ15 signal when it times out, please refer to I/O port and time factor
table as follows:
I/O port: 76H
For example: out 76h, 31h
4.2 WATCHDOG TIMER TRIGGER
After you enable the watchdog timer, your program must write the same factor as triggering to the watchdog timer at
least once during every time-out period. You can change the time-out period by writing another timer factor to the
watchdog register at any time, and you must trigger the watchdog during every new time-out period in next trigger.
5. BIOS CONSOLE
This chapter describes the AR-B9673 BIOS menu displays and explains how to perform common tasks needed to
get up and running, and presents detailed explanations of the elements found in each of the BIOS menus. The
following topics are covered:
Main
Advanced
Peripherals
PnP/PCI
PC Health
Boot
Exit
5.1 BIOS SETUP NOTICE
The BIOS is a program used to initialize and set up the I/O system of the computer, which includes the ISA bus
and connected devices such as the video display, diskette drive, and the keyboard. The BIOS provides a
menu-based interface to the console subsystem. The console subsystem contains special software, called
firmware that interacts directly with the hardware components and facilitates interaction between the system
hardware and the operating system.
The BIOS default values ensure that the system will function at its normal capability. In the worst situation the user
may have corrupted the original settings set by the manufacturer.
After the computer is turned on, the BIOS will perform diagnostics on the system and display the size of the
memory that is being tested. Press the [Del] key to enter the BIOS Setup program, and then the main menu will
show on the screen.
The BIOS Setup main menu includes some options. Use the [Up/Down] arrow key to highlight the option that you
wish to modify, and then press the [Enter] key to select the option and configure the functions.
IRQ 15
Time Factor
Time-Out Period
(Sec)
30h 3
31h 9
32h 15
33h 22
34h 28
35h 34
36h 40
37h 46
