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
122
IRQ
8
−
9
10
11
12
13
−
14
−
15
Express5800/GT110e 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