5 system resources, 1 interrupt request (irq) lines, 2 memory area – Kontron ETX-OH User Manual
Page 32: System resources, Interrupt request (irq) lines, Memory area, Etx-oh / system resources

ETX-OH / System Resources
5 System Resources
5.1
Interrupt Request (IRQ) Lines
IRQ # Used For
Available Comment
0
Timer0
No
-
1
Keyboard
No
-
2
Cascade
No
-
3
COM2
Dynamic
Onboard SIO (Note 1)
4
COM1
Dynamic
Onboard SIO (Note 1)
5
-
YES
-
6
FDC
Dynamic
Onboard SIO (Note 1)
7
LPT
Dynamic
Onboard SIO (Note 1)
8
RTC
No
-
9
ACPI
No
-
10
COM4
Dynamic
External SIO (Note 1)
11
COM3
Dynamic
External SIO (Note 1)
12
PS/2 Mouse
No
-
13
FPU
No
-
14
ATA Channel 0 No
Note (3)
15
ATA Channel 1 No
Note (3)
16
LNK A
No
PCIe RP 0 + HDAudio + PATA Ch#0; Note(4)
17
LNK B
No
PCIe RP 1 + USB EHCI (#1 #2 #3)+ PATA Ch#1 + SATA Legacy IDE; Note(4)
18
LNK C
No
AMD Radeon GFX + USB OHCI (#1 #2 #3 #4) + GbE; Note(4)
19
LNK D
No
SATA + HD Audio; Note(4)
20
LNK E
Yes
PCI INTA Note(4)
21
LNK F
Yes
PCI INTB Note(4)
22
LNK G
Yes
PCI INTC Note(4)
23
LNK H
Yes
PCI INTD Note(4)
(1) If the “Used For” device is disabled in setup, the corresponding interrupt is available
for other device.
(2) Only one of the two devices can be used at the same time as they share pins.
(3) Unavailable in SATA legacy mode.
(4) ACPI OS decides on particular IRQ usage
5.2
Memory Area
Upper Memory
Used for
Available Comment
A0000h – BFFFFh
VGA Memory
No
Mainly used by graphic controller
C0000h – CFFFFh
VGA BIOS
No
Used by onboard VGA ROM
E0000h – FFFFFh
System BIOS
No
Fixed
B8000000h-CFFFFFFFh
System
No
Fixed
D0000000h-DFFFFFFFh AMD Radeon GFX
No
Fixed
D0000000h–FEBFFFFFh PCIe Config Space No
Fixed
FEC00000h-FEC000EFh IOxAPIC
No
Fixed
FEC000F0h-FEC00FFFh
System
No
Fixed
FEC100F0h-FEC10FFFh
System
No
Fixed
FED00000h-FED003FFh HPET
No
Fixed
FED00400h-FED00FFFh System
No
Fixed
FED40000h FED44FFFh
TPM
No
Fixed
FED45000h FED8FFFFh
TPM
No
Fixed
FED61000h-FED70FFFh
System
No
Fixed
FED80000h-FED80FFFh System
No
Fixed
FEE00000h-FEE00FFFh
System
No
Fixed
FFC00000h-FFFFFFFFh
BIOS Flash
No
Fixed
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