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Checkpoint Code

Description

 

 

FCh

Next, erasing the flash ROM.

 

 

FDh

Next, programming the flash ROM.

 

 

FFh

Flash ROM programming was successful. Next,

 

restarting the system BIOS.

 

 

Uncompressed Initialization Codes

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

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.

 

 

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Acer G301 manual 121