6. Appendix
BX-2x0-DCxxxx, BX-2x0D-DCxxxx User’s manual
89
Table 6.4. POST Codes < 2 / 5 >
POST
(hex)
Description
1Dh
Initial EARLY_PM_INIT switch.
1Eh Reserved
1Fh
Load keyboard matrix (notebook platform)
20h Reserved
21h HPM
initialization (notebook platform)
22h Reserved
23h
Check validity of RTC value: e.g. a value of 5Ah is an invalid value for RTC minute.
Load CMOS settings into BIOS stack. If CMOS checksum fails, use default value instead.
Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take into consideration of the ESCD’s
legacy information.
Onboard clock generator initialization. Disable respective clock resource to empty PCI & DIMM slots.
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
Initialize multi-language
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
3Bh Reserved
3Ch Test
8254
3Dh Reserved
3Eh
Test 8259 interrupt mask bits for channel 1.
Summary of Contents for bx200 SERIES
Page 1: ...IPC Series BOX PC for BX200 Series User s Manual CONTEC CO LTD ...
Page 7: ...vi BX 2x0 DCxxxx BX 2x0D DCxxxx User s manual ...
Page 19: ...2 System Reference 12 BX 2x0 DCxxxx BX 2x0D DCxxxx User s manual ...
Page 27: ...3 Hardware Setup 20 BX 2x0 DCxxxx BX 2x0D DCxxxx User s manual ...
Page 51: ...4 Each Component Function 44 BX 2x0 DCxxxx BX 2x0D DCxxxx User s manual ...
Page 91: ...5 BIOS Setup 84 BX 2x0 DCxxxx BX 2x0D DCxxxx User s manual ...
Page 113: ...6 Appendix 106 BX 2x0 DCxxxx BX 2x0D DCxxxx User s manual ...