Asus COMMANDO Manuel technique

ASUS Blitz Series technical updates 1

ASUS Blitz Series Technical Updates

This is an information update for the user guide that comes with your motherboard

package.

A.4 Debug code table

(page A-4~A-6)

IE3152

Code Description

CPU INIT CPU Initiation

DET CPU Test CMOS R/W functionality.

CHIPINIT

Early chipset initialization:

-Disable shadow RAM

-Disable L2 cache

-Program basic chipset registers

DET DRAM

Detect memory

-Auto-detection of DRAM size, type and ECC.

-Auto-detection of L2 cache

DC FCODE Expand compressed BIOS code to DRAM

EFSHADOW Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.

INIT IO Initialize IO devices.

INIT HWM Initialize Hardware Monitor.

CLR SCRN 1. Blank out screen

2. Clear CMOS error ag

INIT8042 1. Clear 8042 interface

2. Initialize 8042 self-test

ENABLEKB 1. Test special keyboard controller for Super I/O chips.

2. Enable keyboard interface.

DIS MS

1. Disable PS/2 mouse interface (optional).

2. Auto detect ports for keyboard & mouse followed by a port & interface

swap (optional).

3. Reset keyboard for Super I/O chips.

R/W FSEG Test F000h segment shadow to see whether it is R/W-able or not. If test

fails, keep beeping the speaker.

DET FLASH Auto detect ash type to load appropriate ash R/W codes into the run time

area in F000 for ESCD & DMI support.

TESTCMOS Use walking 1’s algorithm to check out interface in CMOS circuitry. Also set

real-time clock power status, and then check for override.

PRG CHIP Program chipset default values into chipset.

INIT CLK Initialize clock generator.

CHECKCPU Detect CPU information including brand, type and CPU level (586 or 686).

INTRINIT Initial interrupts vector table.

INITINT9 Initialize INT 09 buffer

CPUSPEED

1. Program CPU internal MTRR (Pentium class CPU) for 0-640K memory

address.

2. Initialize the APIC for Pentium class CPU.

3. Program early chipset according to CMOS setup. Example: onboard IDE

controller.

4. Measure CPU speed.

5. Invoke video BIOS.

VGA BIOS Initialize VGA BIOS

TESTVRAM

1. Initialize multi-language

2. Put information on screen display, including BIOS logo, CPU type, CPU

speed .

RESET KB Reset keyboard.

2 ASUS Blitz Series technical updates

8254TEST Test 8254

8259MSK1 Test 8259 interrupt mask bits for channel 1.

8259MSK2 Test 8259 interrupt mask bits for channel 2.

8259TEST Test 8259 functionality.

COUNTMEM Calculate total memory by testing the last double word of each 64K page.

MP INIT

1. Program MTRR of M1 CPU

2. Initialize L2 cache for P6 class CPU & program CPU with proper

cacheable range.

3. Initialize the APIC for P6 class CPU.

4. On MP platform, adjust the cacheable range to smaller one in case the

cacheable ranges between each CPU are not identical.

USB INIT Initialize USB

TEST MEM Test all memory (clear all extended memory to 0)

SHOW MP Display number of processors (multi-processor platform)

PNP LOGO Display PnP logo

ONBD IO Initialize Onboard IO devices.

EN SETUP Okay to enter Setup utility.

MSINSTAL Initialize PS/2 Mouse

CHK ACPI Prepare memory size information for function call: INT 15h ax=E820h

EN CACHE Turn on L2 cache

SET CHIP Program chipset registers according to items described in Setup & Auto-

conguration table.

AUTO CFG Assign resources to devices.

INIT FDC 1. Initialize oppy controller

2. Set up oppy related elds in 40:hardware.

DET IDE Detect & install all IDE devices: HDD, LS120, ZIP, CDROM.

COM/LPT Detect serial ports & parallel ports.

DET FPU Detect & install co-processor

CPU CHG New CPU installed

EZ FLASH Execute EZ Flash

CPR FAIL CPR error

FAN FAIL Fan error

UCODEERR UCODE error

FLOPYERR Floppy error

KB ERROR Keyboard error

HD ERR HDD error

CMOS ERR CMOS error

MS ERROR Mouse error

SMARTERR HDD smart function error

HM ERROR Hard monitor error

AINETERR AI NET error

CASEOPEN Case open

INIT ROM Initialize option ROMs

PASSWORD

Clear EPA or customization logo.

1. Call chipset power management hook.

2. Recover the text fond used by EPA logo (not for full screen logo)

3. If password is set, ask for password.

ASUS Blitz Series technical updates 3

USB FINAL

Initialize PnP boot devices

1. USB nal Initialization

2. NET PC: Build SYSID structure

3. Switch screen back to text mode

4. Set up ACPI table at top of memory.

5. Invoke ISA adapter ROMs

6. Assign IRQs to PCI devices

7. Initialize APM

8. Clear noise of IRQs.

INIT ROM Initialize device option ROMs.

NUM LOCK 1. Program daylight saving

2. Update keyboard LED & typematic rate

UPDT DMI

1. Build MP table

2. Build & update ESCD

3. Set CMOS century to 20h or 19h

4. Load CMOS time into DOS timer tick

5. Build MSIRQ routing table.

INT 19H Boot attempt (INT 19h)

15G063885000

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