24
EX-300-96122 User's Manual
0Ah
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 Winbond 977 series Super I/O chips.
0Bh
Reserved
0Ch
Reserved
0Dh
Reserved
0Eh
Test F000h segment shadow to see whether it is R/W-able or not. If test
fails, keep beeping the speaker.
0Fh
Reserved
10h
Auto detect flash type to load appropriate flash R/W codes into the run
time area in F000 for ESCD & DMI support.
11h
Reserved
12h
Use walking 1's algorithm to check out interface in CMOS circuitry. Also
set real-time clock power status, and then check for override.
13h
Reserved
14h
Program chipset default values into chipset. Chipset default values are
MODBINable by OEM customers.
15h
Reserved
16h
Initial onboard clock generator if Early_Init_Onboard_Generator is
defined. See also POST 26h.
17h
Reserved
18h
Detect CPU information including brand, SMI type (Cyrix or Intel) and
CPU level (586 or 686).
19h
Reserved
1Ah
Reserved
1Bh
Initial interrupts vector table. If no special specified, all H/W interrupts
are directed to SPURIOUS_INT_HDLR & S/W interrupts to
SPURIOUS_soft_HDLR.
1Ch
Reserved
1Dh
Initial EARLY_PM_INIT switch.
1Eh
Reserved
1Fh
Load keyboard matrix (notebook platform)
20h
Reserved
21h
HPM initialization (notebook platform)
22h
Reserved
23h
1. Check validity of RTC value: e.g. a value of 5Ah is an invalid value for
RTC minute.
2. Load CMOS settings into BIOS stack. If CMOS checksum fails, use
default value instead.
24h
Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take
into consideration of the ESCD's legacy information.
25h
Early PCI Initialization:
-Enumerate PCI bus number.
-Assign memory & I/O resource
-Search for a valid VGA device & VGA BIOS,
and put it into C000:0
26h
1. If Early_Init_Onboard_Generator is not defined Onboard
clock generator initialization. Disable respective clock
resource to empty PCI & DIMM slots.
2. Init onboard PWM
3. Init onboard H/W monitor devices
27h
Initialize INT 09 buffer
28h
Reserved
29h
1. Program CPU internal MTRR (P6 & PII)
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.
2Ah
Reserved
2Bh
Invoke Video BIOS
2Ch
Reserved
2Dh
1. Initialize double-byte language font (Optional)
2. Put information on screen display, including Award title,
