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NEX 6620A User's Guide
POST (hex)
24h
Reserved
25h
Reserved
26h
Reserved
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.
5. Invoke video BIOS.
2Ah
Reserved
2Bh
Reserved
2Ch
Reserved
2Dh
1. Initialize multi-language
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
3Bh
Reserved
3Ch
Test 8254
3Dh
Reserved
3Eh
Test 8259 interrupt mask bits for channel 1.
3Fh
Reserved
BIOS Setup
Description
Rev. B0
0301
4-35
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