Software • BIOS options
186
Power Panel 500 User's Manual V 1.00
1.11 Distribution of resources
1.11.1 RAM address assignment
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
869 kB – 1024 kB
0E0000h - 0FFFFFh
Runtime BIOS
832 kB – 869 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 122: 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 for SMI handling in system BIOS.
5) The VGA frame buffer can be reduced to 1 MB in the setup.
1.11.2 I/O address assignment
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 123: 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 area.
1.11.3 Interrupt assignmentone 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)
●
Table 124: IRQ interrupt assignments PIC Mode
Содержание 5PP551.0573-00
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