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
8
9
10
11
Peripheral Device (Controller)
System timer
−
−
COM 2 serial port
COM 1 serial port
PCI
–
–
Real-time clock
–
–
–
Express5800/E120e-M User's Guide
IRQ
Peripheral Device (Controller)
12
–
13
Numeric data processor
14
–
15
–
16
USB
17
–
18
–
19
SATA
20
–
21
–
22
–
23
USB
2. Interrupt Lines
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