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21
PIRQ[F]
No
22
PIRQ[G]
No
23
PIRQ[H]
No
1 If the "Used For" device is disabled in setup, the corresponding interrupt is available for
other devices.
2 Unavailable in Advanced Configuration and Power Interface (ACPI) mode. Used as System
Control Interrupt (SCI) in ACPI mode. Currently not free in Non-ACPI mode.
5.2
Direct Memory Access (DMA) Channels
DMA#
Used For
Available
Comment
0
No
1
No
2
FDC
No
If the „used-for" device is disabled in setup, the corresponding DMA channel is avaialble for other devices
3
LPT
No
Unavailable if LPT is used in ECP mode
4
Cascade
No
5
No
6
No
7
No
5.3
Memory Area
Upper Memory
Used For
Available
C0000h-CFFFFh
VGA BIOS
No
D0000h-DFFFFh
Yes
E0000h-EFFFFh
System BIOS
No
5.4
I/O Address Map
Upper Memory
Used For
Available
480h-4BFh
Chipset
No
800h-87Fh
Chipset
No
A00h-AFFh
Chipset
No
1000h>
PCI
No
5.5
External Inter-IC (I2C) Bus
I2C Address
Used For
Available
5.6
System Management (SM) Bus
43
USB EHCI controller, USB UCHI controller #1
Comment
LPC Bus or Shadow RAM
Comment
Always used by chipset
Always used by chipset
Always used by chipset
Comment
JIDA Bus Nr.
2
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