Appendix
A-7
EP-6WEA4/4I
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
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.
Summary of Contents for EP-6WEA4
Page 6: ...EP 6WEA4 4I Page Left Blank ...
Page 14: ...Introduction EP 6WEA4 4I Page 1 8 Figure 5 System Block Diagram System Block Diagram ...
Page 17: ...Installation EP 6WEA4 4I Page 3 1 Section 3 INSTALLATION ...
Page 18: ...Installation EP 6WEA4 4I Page 3 2 Figure 1 EP 6WEA4 4I Detailed Layout ...
Page 58: ...BIOS EP 6WEA4 4I Page 4 28 Page Left Blank ...
Page 60: ...Drivers Installation EP 6WEA4 4I Page 5 2 Page Left Blank ...
Page 72: ...Appendix EP 6WEA4 4I A 12 Page Left Blank ...