Lenovo NetVista A20 (English) User guide - Page 121

System interrupts, Specification tables, Table 4: System interrupts

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System interrupts This table shows the system Interrupt Requests (IRQs) and their functions. You may use this information if you install an adapter card that requires you to set IRQs. In some cases, the device listed uses the IRQ. Table 4: System interrupts Interrupt request (IRQ) 0 1 2 3 5 6 7 8 9 10 11 12 13 14 15 Function Timer Keyboard Programmable Interrupt Controller Serial Port, Communications port Modem/Audio Diskette Parallel, Printer port Real Time Clock/System CMOS ACPI SCI Audio Ethernet, LAN PS/2 Mouse Numeric Data Processor Primary IDE Secondary IDE Specification tables A-5

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Specification tables
A-5
System interrupts
This table shows the system Interrupt Requests (IRQs) and their functions. You
may use this information if you install an adapter card that requires you to set IRQs.
In some cases, the device listed uses the IRQ.
Table 4: System interrupts
Interrupt
request (IRQ)
Function
0
Timer
1
Keyboard
2
Programmable Interrupt Controller
3
Serial Port, Communications port
5
Modem/Audio
6
Diskette
7
Parallel, Printer port
8
Real Time Clock/System CMOS
9
ACPI SCI
10
Audio
11
Ethernet, LAN
12
PS/2 Mouse
13
Numeric Data Processor
14
Primary IDE
15
Secondary IDE