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Interrupt Controllers
The following table shows default interrupt level
assignments 0 through 15.
NAME*
IRQ00
IRQ01
IRQ02
IRQ03
IRQ04
IRQ05
IRQ06
IRQ07
IRQ08
IRQ09
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
*IRQs 00 through 07 are serviced by the Master controller;
08 through 15 are serviced by the Slave controller.
**The lower the priority number, the higher the priority level.
B-6 Specifications
IRQ Settings
PRIORITY**
DEVICE
0
System Timer
1
Standard Keyboard
2
Programmable Interrupt Controller
11
COM2
12
COM1
13
Audio
14
Floppy Diskette Controller
15
ECP LPT1
3
RTC
4
Reserved (PC Card)
5
Reserved (PC Card)
6
Reserved (PC Card)
7
PS/2 Port Mouse
8
Floating Point Unit (FPU)
9
Primary IDE
10
Secondary IDE
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