7system resources, 1 interrupt request (irq) lines – Kontron ETXexpress-AI User Manual
Page 74
Kontron ETXexpress-AI User’s Guide
69
7
System Resources
7.1
Interrupt Request (IRQ) Lines
Table 20: 8259 PIC Mode
IRQ #
Used For
Available
Comment
0
Timer0
No
1
Keyboard
No
2
Cascade
No
3
External SIO - COM2
Yes (No)
Note (1)
4
External SIO - COM1
Yes (No)
Note (1)
5
PCI
For PCI
Dynamic (BIOS default)
6
External SIO
Yes (No)
Note (1)
7
External SIO - LPT1
Yes (No)
Note (1)
8
RTC
No
9
ACPI
No
Note (2)
10
PCI
For PCI
Dynamic (BIOS default)
11
PCI
For PCI
Dynamic (BIOS default)
12
PS/2 Mouse
Yes (No)
Note (1)
13
FPU
No
14
Primary IDE
No
Note (1)
15
PCI
For PCI
Dynamic (BIOS default)
NOTES:
1) If the “Used For” device is disabled in setup, the interrupt
is available for other devices.
2) Not available if ACPI is used
Table 21: APIC Mode
IRQ #
Used For
Availab
le
Comment
0
Timer0
No
1
Keyboard
No
2
Cascade
No
3
External SIO -
COM2
Yes (No) Note (1)
4
External SIO -
COM1
Yes (No) Note (1)
5
PCI
for PCI
Dynamic (BIOS default)
6
External SIO
Yes (No) Note (1)
7
External SIO -
LPT1
Yes (No) Note (1)
8
RTC
No
Option for HPET#1 (Legacy Mode)
9
ACPI
No
Option for SCI, TCO; Note (2)
10
PCI
for PCI
Dynamic assignment; Option for SCI, TCO or
PIRQ#
11
PCI
for PCI
Dynamic assignment; Option for SCI, TCO or