Mercury Green 320, Руководство по обслуживанию

Страница: 52 / 85

52
Code Description
0Ch The keyboard controller input buffer is free. Next, issuing the BAT command to the keyboard controller.
0Eh The keyboard controller BAT command result has been verified. Next, performing any necessary initialization after
the keyboard controller BAT command test.
0Fh The initialization after the keyboard controller BAT command test is done. The keyboard command byte is written
next.
10h The keyboard controller command byte is written. Next, issuing the Pin 23 and 24 blocking and unblocking commands.
11h Next, checking if the <End or <Ins> keys were pressed during power on. Initializing CMOS RAM if the
Initialize CMOS
RAM in every boot
AMIBIOS POST option was set in AMIBCP or the <End> key was pressed.
12h Next, disabling DMA controllers 1 and 2 and interrupt controllers 1 and 2.
13h The video display has been disabled. Port B has been initialized. Next, initializing the chipset.
14h The 8254 timer test will begin next.
19h The 8254 timer test is over. Starting the memory refresh test next.
1Ah The memory refresh line is toggling. Checking the 15 second on/off time next.
23h Reading the 8042 input port and disabling the MEGAKEY Green PC feature next. Making the BIOS code segment
writable and performing any necessary configuration before initializing the interrupt vectors.
24h The configuration required before interrupt vector initialization has completed. Interrupt vector initialization is about
to begin.
25h Interrupt vector initialization is done. Clearing the password if the POST DIAG switch is on.
27h Any initialization before setting video mode will be done next.
28h Initialization before setting the video mode is complete. Configuring the monochrome mode and color mode settings
next.
2Ah Bus initialization system, static, output devices will be done next, if present.
2Bh Passing control to the video ROM to perform any required configuration before the video ROM test.
2Ch All necessary processing before passing control to the video ROM is done. Looking for the video ROM next and passing
control to it.
2Dh The video ROM has returned control to BIOS POST. Performing any required processing after the video ROM had
control.
2Eh Completed post-video ROM test processing. If the EGA/VGA controller is not found, performing the display memory
read/write test next.
2Fh The EGA/VGA controller was not found. The display memory read/write test is about to begin.
30h The display memory read/write test passed. Look for retrace checking next.
31h The display memory read/write test or retrace checking failed. Performing the alternate display memory read/write
test next.
32h The alternate display memory read/write test passed. Looking for alternate display retrace checking next.
34h Video display checking is over. Setting the display mode next.
37h The display mode is set. Displaying the power on message next.
38h Initializing the bus input, IPL, and general devices next, if present.