I-Tech Company WBX-6200F-V user manual Uncompressed Initialization Codes The following runtime

Models: WBX-6200F-V

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FF

Flash ROM programming was successful. Next, restarting the system BIOS.

Uncompressed Initialization Codes — The following runtime

checkpoint hex codes are listed in order of execution. These codes are uncompressed in F0000h shadow RAM.

 

Code

 

 

Description

 

03

 

The NMI is disabled. Next, checking for a soft reset or a power on

 

condition.

 

 

 

05

 

The BIOS stack has been built. Next, disabling cache memory.

06

 

Uncompressing the POST code next.

07

 

Next, initializing the CPU and the CPU data area.

08

 

The CMOS checksum calculation is done next.

 

0B

Next, performing any required initialization before the keyboard

 

BAT command is issued.

 

 

 

 

0C

The keyboard controller input buffer is free. Next, issuing the

 

BAT command to the keyboard controller.

 

 

 

 

 

 

The keyboard controller BAT command result has been verified.

 

0E

Next, performing any necessary INIT after the K/B controller BAT

 

 

 

command test.

 

0F

The keyboard command byte is written next.

10

 

Next, issuing the pin 23 and 24 blocking and unblocking

 

commands.

 

 

 

 

Code

 

 

Description

 

11

 

Next, checking if the <End> or <Ins> keys were pressed during

 

power on.

 

 

 

 

 

 

To initialize CMOS if the initialize CMOS RAM in every boot is set

12

 

or the

 

<End> key is pressed. Going to disable DMA and Interrupt

 

 

 

 

 

 

controllers.

13

 

The video display has been disabled. Port B has been initialized.

 

Next, initializing the chipset.

 

 

 

14

 

The 8254 timer test will begin next.

19

 

The 8254 timer test is over. Starting the memory refresh test

 

next.

 

 

 

 

1A

The memory refresh line is toggling. Checking the 15us on/off

 

time next.

 

 

 

 

 

 

Reading the 8042 input port and disabling the MEGAKEY Green

23

 

PC feature next. Making the BIOS code segment writable and

 

performing any necessary configuration before initializing the

 

 

 

 

 

 

interrupt vectors.

 

 

 

The configuration or setup required before interrupt vector

24

 

initialization has completed. Interrupt vector init. is about to

 

 

 

begin

 

 

 

 

 

 

37

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I-Tech Company WBX-6200F-V Uncompressed Initialization Codes The following runtime, BAT command to the keyboard controller