BIOS
- 48 -
BIOS
- 47 -
23h
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
38h
39h
3Ah
3Bh
3Ch
Check validity of RTC value; 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
busnumber, assign memory & I/O resource, search for a valid VGA
device & VGA BIOS, and put it into C000:0
Reserved
Reserved
Reserved
Initialize INT 09 buffer
Reserved
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; Measure CPU speed; Invoke video BIOS
Reserved
Reserved
Reserved
Initialize multilanguage; Put information on screen display, including
Award title, CPU type, CPU speed, etc...
Reserved
Reserved
Reserved
Reserved
Reserved
Reset keyboard except Winbond 977 series Super I/O chips
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Test 8254
3Dh
3Eh
3Fh
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
4Ah
4Bh
4Ch
4Dh
4Eh
4Fh
50h
51h
52h
53h
54h
55h
56h
57h
58h
59h
5Ah
Reserved
Test 8259 interrupt mask bits for channel 1
Reserved
Test 9259 interrupt mask bits for channel 2
Reserved
Reserved
Test 8259 functionality
Reserved
Reserved
Reserved
Initialize EISA slot
Reserved
Calculate total memory by testing the last double last word of each
64K page; Program writes allocation for AMD K5 CPU
Reserved
Reserved
Reserved
Reserved
Program MTRR of M1 CPU; initialize L2 cache for P6 class CPU &
program cacheable range; Initialize the APIC for P6 class CPU; On
MP platform, adjust the cacheable range to smaller one in case the
cacheable ranges between each CPU are not identical
reserved
Initialize USB
Reserved
Test all memory (clear all extended memory to 0)
Reserved
Reserved
Display number of processors (multi-processor platform)
Reserved
Display PnP logo; Early ISA PnP initialization and assign CSN to
every ISA PnP device
Reserved
Initialize the combined Trend Anti-Virus code
Reserved
Summary of Contents for EmCORE-v7002
Page 1: ......
Page 2: ...EmCORE v7002 VIA Eden 3 5 Embedded Board User s Manual Version 1 0 2008 04...
Page 4: ...Introduction 1 Introduction 1 Chapter 1...
Page 10: ...1 11 Board Dimensions Introduction 7...
Page 11: ...Installation 2 Chapter 2 Installation 8...
Page 22: ...BIOS 19 BIOS 3 Chapter 3...
