Intel Raptor AT manual Table D-6 Uncompressed Initialization Codes

Appendix D: Industrial Devices

Table D-6 Uncompressed Initialization Codes

The following runtime checkpoint codes are listed in order of execution. These codes are uncompressed in F0000h shadow RAM.

Checkpoint	Description
Code
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.
	The CMOS status register is initialized.	Next,
0Bh	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.
	The keyboard controller BAT command result has been
0Eh	verified. Next, performing any necessary initialization
	after the keyboard controller BAT command test.
	The initialization after the keyboard controller BAT
0Fh	command test is done. The keyboard command byte is
	written next.
	The keyboard controller command byte is written. Next,
10h	issuing the Pin 23 and 24 blocking and unblocking
	command.
	Next, checking if <End or <Ins> keys were pressed
	during power on.
11h	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.
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