2. Interrupt Lines
Express5800/R120e-1M User’s Guide
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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)
IRQ
Peripheral Device (Controller)
0
System timer
12
SM Bus
1
−
13
Numeric data processor
2
−
14
−
3
COM 2 serial port
15
−
4
COM 1 serial port
16
VGA, LAN1
5 PCI
17 LAN2,
SATA
6
−
18
−
7 PCI
19
−
8 Real-time
clock
20 USB
9 Microsoft
ACPI-Compliant
System
21 USB
10 PCI
22 USB
11 Motherboard
resource
23 USB
