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H8DMT/H8DMT-IBX/H8DMT-F/H8DMT-IBXF User’s Manual
B-2
B-3 Uncompressed Initialization Codes
The following runtime checkpoint codes are listed in order of execution.
These codes are uncompressed in F0000h shadow RAM.
FCh Next, erasing the flash ROM.
FDh Next, programming the flash ROM.
FFh Flash ROM programming was successful. Next, restarting the system BIOS.
Checkpoint Code Description
03h The NMI is disabled. Next, checking for a soft reset or a power on condition.
05h The BIOS stack has been built. Next, disabling cache memory.
06h Uncompressing the POST code next.
07h Next, initializing the CPU and the CPU data area.
08h The CMOS checksum calculation is done next.
0Ah
The CMOS checksum calculation is done. Initializing the CMOS status register
for date and time next.
0Bh
The CMOS status register is initialized. Next, performing any required
initialization before the keyboard BAT command is issued.
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 command.
11h
Next, checking if <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 Next, programming the flash ROM.
1Ah The memory refresh line is toggling. Checking the 15 second on/off time next.
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.
Checkpoint Code Description