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Chapter 4 Appendix
2.
Interrupt Lines
Interrupt lines are assigned as factory settings as shown below. Use this table as a reference when you add
optional devices.
Interrupt lines
As factory settings, interrupt lines are assigned as follows.
IRQ
Peripheral Device (Controller)
0
System timer
1
2
Cascade connection
3
COM 2 serial port
4
COM 1 serial port
5
PCI
6
7
IRQ
8
9
10
11
12
13
14
15
Express5800/GT110d User's Guide
Peripheral Device (Controller)
Real-time clock
Microsoft ACPI-Compliant System
PCI
PCI
Arithmetic operation processor
Primary IDE
Secondary IDE
2. Interrupt Lines
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