Software • BIOS options
214
Power Panel 500 user's manual V1.40
1.11 Allocation of resources
Resource
(TOM - FB
1)
) – TOM
2)
N.A.
ACPI reclaim, MPS and NVS area
3)
(TOM - FB - TSEG
4)
) – (TOM - FB)
N.A.
VGA frame buffer
5)
1024 kB – (TOM - 8 MB - 192 kB)
100000h - N.A.
Extended memory
896 kB – 1024 kB
0E0000h - 0FFFFFh
Runtime BIOS
832 kB – 896 kB
0D0000h - 0DFFFFh
Upper memory
640 kB – 832 kB
0A0000h - 0CFFFFh
Video memory and BIOS
639 kB – 640 kB
09FC00h - 09FFFFh
Extended BIOS data
0 – 639 kB
000000h - 09FC00h
Conventional memory
Table 170: RAM address assignment
1)
FB - VGA frame buffer.
2)
TOM = Top of memory: max. installed DRAM.
3)
Only if ACPI Aware OS is set to "YES" in the setup.
4)
TSEG - Intended internally by BIOS for SMI handling.
5)
The VGA frame buffer can be reduced to 1 MB in the setup.
Resource
0000h - 00FFh
Motherboard resources
01F0h - 01F7h
Primary IDE channel
03B0h - 03DFh
Video system
03F6h - 03F6h
Primary IDE channel command port
03F7h - 03F7h
Primary IDE channel status port
03F8h - 03FFh
COM1
0480h - 04BFh
Motherboard resources
04D0h - 04D1h
Motherboard resources
0800h - 087Fh
Motherboard resources
0CF8h - 0CFBh
0CFCh - 0CFFh
PCI config data register
0D00h - FFFFh
PCI / PCI Express bus
1)
4100h - 417Fh
MTCX
FF00h - FF07h
IDE bus master register
Table 171: I/O address assignment
1)
The BIOS assigns the PCI and PCI Express bus I/O resources from FFF0h downward. Devices that are not compatible with PnP/PCI/PCI Express cannot
use the I/O resources in this range.
1.11.3 Interrupt assignments in PIC mode
IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NMI
NONE
System timer
●
Keyboard
●
IRQ cascade
●
COM1 (serial port A)
○
●
○
○
○
○
○
COM2 (serial port B)
●
○
○
○
○
○
○
ACPI
1)
●
Real-time clock
●
Coprocessor (FPU)
●
Primary IDE channel
●
Secondary IDE channel
●
Table 172: IRQ interrupt assignments in PIC mode
1)
A
dvanced
C
onfiguration and
P
ower
I
nterface.
● ... Default setting
○ ... Optional setting
