User manual

Viglen BX130 – VIG385P User Manual
41
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.
3. Prepare BIOS resource map for PCI & PnP use. If ESCD
is valid, take into consideration of the ESCD’s legacy
information.
4. Onboard clock generator initialization. Disable respective
clock resource to empty PCI & DIMM slots.
5. 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.
24h Reserved
25h Reserved
26h Reserved
27h Initialize INT 09 buffer
28h Reserved
29h
? Program CPU internal MTRR (P6 & PII) for 0-640K
memory address.
? Initialize the APIC for Pentium class CPU.
? Program early chipset according to CMOS setup.
Example: onboard IDE controller.
? Measure CPU speed.
? Invoke video BIOS.
2Ah Reserved
2Bh Reserved
2Ch Reserved
2Dh 1. Initialize multi-language
2. 2. Put information on screen display, including Award title,
CPU type, CPU Speed.
2Eh Reserved
2Fh Reserved
30h Reserved
31h Reserved
32h Reserved
33h Reset keyboard except Winbond 977 series Super I/O chips.
34h Reserved
35h Reserved
36h Reserved
37h Reserved
38h Reserved
39h Reserved
3Ah Reserved