5 system resources, 1 interrupt request (irq) lines, 2 memory area – Kontron COMe-mCT10 User Manual
Page 45: System resources, Interrupt request (irq) lines, Memory area, Come-mct10 / system resources
COMe-mCT10 / 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
External SIO - COM2
Ext.SIO
Dynamic (BIOS default)
4
External SIO - COM1
Ext.SIO
Dynamic (BIOS default)
5
External SIO - LPT1
Ext.SIO
Dynamic (BIOS default)
6
-
Ext.SIO
-
7
SMBus
No
Note(3)
8
RTC
No
-
9
ACPI
No
-
10
-
Ext.SIO
-
11
-
Ext.SIO
-
12
-
Ext.SIO
-
13
FPU
No
-
14
-
No
-
15
-
No
-
16
LNK A
No
PCIe RP 0 + USB UHCI3; Note(3)
17
LNK B
No
PCIe RP 1; Note(3)
18
LNK C
No
PCIe RP 2 + USB UHCI2 + SDIO; Note(3)
19
LNK D
No
PCIe RP 3 + USB UHCI1 + S-ATA; Note(3)
20
LNK E
No
Note(3)
21
LNK F
No
Note(3)
22
LNK G
No
HDA; Note(3)
23
LNK H
No
USB UHCI0 + USB EHCI; Note(3)
(1) If the “Used For” device is disabled in setup, the corresponding interrupt is available
for other device.
(2) Not available if ACPI is used
(3) ACPI OS decides on particular IRQ usage
5.2
Memory Area
The first 640 kB of DRAM are used as main memory. Using DOS, you can address 1MB of memory directly. The memory area
above 1 MB (high memory, extended memory) is accessed under DOS via special drivers such as HIMEM.SYS and
EMM386.EXE, which are part of the operating system. Please refer to the operating system documentation or special
textbooks for information about HIMEM.SYS and EMM386.EXE. Other operating systems (Linux or Windows versions) allow
you to address the full memory area directly.
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
D0000h – DFFFFh
-
Yes
Free for shadow RAM in standard
configurations.
E0000h – FFFFFh
System BIOS
No
Fixed
E0000000h–EFFFFFFFh
PCIe Config Space
No
Fixed
FEC00000h-FEC00FFFh
APCB
No
Fixed
FED00000h-FED003FFh
HPET
No
Fixed
FED14000h-FED17FFFh
MCH
No
Fixed
FED18000h-FED18FFFh
DMI
No
Fixed
FED19000h-FED19FFFh
EPBA
No
Fixed
FED1C000h-FED1FFFFh
RCBA
No
Fixed
FED2000h FED8FFFFh
Chipset + TPM
No
Fixed
FF000000h-FFFFFFFFh
BIOS Flash
No
Fixed
45