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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
0
1
2
3
4
5
6
7
104
Peripheral Device (Controller)
System timer
−
Cascade connection
COM 2 serial port
COM 1 serial port
PCI
−
−
Express5800/B120e User's Guide
IRQ
Peripheral Device (Controller)
8
Real-time clock
9
Microsoft ACPI-Compliant System
10
PCI
11
PCI
−
12
13
Arithmetic operation processor
14
Primary IDE
15
Secondary IDE
2. Interrupt Lines
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