Irq mapping table – Nortel Networks CALLPILOT 555-7101-217 User Manual
Page 17

May 2003
1001rp server description
Part 2: 1001rp Server Hardware Installation
17
IRQ mapping table
Introduction
The following table displays the assignments for each Interrupt Request
Line (IRQ) with the associated slot or device. You do not need this
information for installation, but you may need it for troubleshooting.
Note: IRQs 9, 10, 11, and 15 are assigned to system PCI slots rather than to
specific devices.
IRQ
Slot or device
0
Timer
1
Keyboard
2
System / Unused
3
Serial port 2 (COM2)
4
Serial port 1 (COM1)
5
Available
6
Floppy controller
7
Parallel port (LPT1)
8
Real Time Clock
9
Assigned to slots 9, 15, and 20
10
Assigned to slots 10, 13, and 19
11
Assigned to slots 11, 14, and 17
12
PS/2 mouse
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