beautypg.com

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

background image

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

32