5 system ressources, 1 interrupt request (irq) lines, 1 in 8259 pic mode – Kontron COMe-cDC2 User Manual
Page 46: System ressources, Interrupt request (irq) lines, In 8259 pic mode, Come-cdc2 / system ressources
COMe-cDC2 / System Ressources
5 System Ressources
5.1
Interrupt Request (IRQ) Lines
Please be aware that an ACPI OS decides itself on resource usage. The tables below show only an example distribution.
5.1.1
In 8259 PIC Mode
IRQ#
Used For
Available
Comment
0
Timer 0
No
-
1
Keyboard
No
-
2
Slave 8259
No
-
3
COM2
Yes
Note(1)
4
COM1
Yes
Note(1)
5
Free
Yes
-
6
Floppy Drive Controller
Yes
Note(1)
7
LPT1
Yes
Note(1)
8
RTC
No
-
9
SCI
No
Note(2)
10
Free
Yes
-
11
Free
Yes
-
12
PS/2 Mouse
No
Note(1)
13
FPU
No
-
14
IDE0
No
Note(1)
15
IDE1
No
Note(1)
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.
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