Debug Code Table; Debug Code Table - Asus Striker II Formula User Manual

A.4

Debug code table

Code
CPU INIT
DET CPU
CHIPINIT
DET DRAM
DC FCODE
EFSHADOW
INIT IO
INIT HWM
CLR SCRN
INIT8042
ENABLEKB
DIS MS
R/W FSEG
DET FLASH
TESTCMOS
PRG CHIP
INIT CLK
CHECKCPU
INTRINIT
INITINT9
CPUSPEED
VGA BIOS
TESTVRAM
RESET KB
A-4
Description
CPU Initiation
Test CMOS R/W functionality.
�arly chipset initialization:
-Disable shadow RAM
-Disable L2 cache
-Program basic chipset registers
Detect memory
�Auto�detection of DRAM size, type and �CC.
-Auto-detection of L2 cache
Expand compressed BIOS code to DRAM
Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.
Initialize IO devices.
Initialize Hardware Monitor.
1. Blank out screen
2. Clear CMOS error flag
1. Clear 8042 interface
2. Initialize 8042 self�test
1. Test special keyboard controller for Super I/O chips.
2. Enable keyboard interface.
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.
Test F000h segment shadow to see whether it is R/W-able or not. If test
fails, keep beeping the speaker.
Auto detect flash type to load appropriate flash R/W codes into the run time
area in F000 for ESCD & DMI support.
Use walking 1's algorithm to check out interface in CMOS circuitry. Also set
real-time clock power status, and then check for override.
Program chipset default values into chipset.
Initialize clock generator.
Detect CPU information including brand, type and CPU level (586 or 686).
Initial interrupts vector table.
Initialize INT 09 buffer
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.
Initialize �GA BIOS
1. Initialize multi�language
2. Put information on screen display, including BIOS logo, CPU type, CPU
speed .
Reset keyboard.
Appendix: CPU features