System Resources
75
MI-960
B.4 Interrupt Request (IRQ) Lines
IRQ Lines PIC Mode
Table B-4: IRQ Lines PIC Mode
Note (1):
These IRQs can be used for PCI devices when
onboard device is disabled. If IRQ is from ISA, user must
reserve IRQ for ISA in BIOS setup menu.
Note (2):
BIOS does not open IRQ 9 setting for ISA bus.
IRQ#
Typical Intterupt
Resource
Connected to Pin
Available
0
Counter 0
N/A
No
1
Keyboard controller
N/A
No
2
Cascade interrupt from
slave PIC
N/A
No
3
Serial Port 2 (COM2) /
PCI / ISA
IRQ3 via SERIRQ,
IRQ3 at ISA bus
Note (1)
4
Serial Port 1 (COM1) /
PCI / ISA
IRQ4 via SERIRQ,
IRQ4 at ISA bus
Note (1)
5
Parallel Port 2 (LPT2) /
PCI / ISA
IRQ5 via SERIRQ,
IRQ5 at ISA bus
Note (1)
6
Floppy Drive Controller
IRQ6 via SERIRQ
No
7
Parallel Port 1 (LPT1) /
PCI / ISA
IRQ7 via SERIRQ,
IRQ7 at ISA bus
Note (1)
8
Real-time clock
N/A
No
9
SCI / PCI
IRQ9 via SERIRQ,
IRQ9 at ISA bus
Note (1), (2)
10
PCI / ISA
IRQ10 via SERIRQ,
IRQ10 at ISA bus
Note (1)
11
PCI / ISA
IRQ11 via SERIRQ,
IRQ11 at ISA bus
Note (1)
12
PS/2 Mouse / PCI / ISA
IRQ12 via SERIRQ,
IRQ12 at ISA bus
Note (1)
13
Math Processor
N/A
No
14
Primary IDE controller /
PCI / ISA
IRQ14 via SERIRQ,
IRQ14 at ISA bus
Note (1)
15
Secondary IDE controller /
PCI / ISA
IRQ15 via SERIRQ,
IRQ15 at ISA bus
Note (1)
Summary of Contents for MI-960
Page 6: ...vi Preface This page intentionally left blank This page intentionally left blank ...
Page 9: ...Table of Contents ix MI 960 Important Safety Instructions 81 Getting Service 83 ...
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Page 12: ...xii List of Figures This page intentionally left blank ...
Page 14: ...xiv List of Tables This page intentionally left blank ...
Page 27: ...Introduction 13 MI 960 Figure 1 5 MI 960 Rear I O Dimensions Dimensions in mm ...
Page 28: ...14 Introduction This page intentionally left blank ...
Page 40: ...26 Connectors Jumpers This page intentionally left blank ...
Page 48: ...34 Getting Started This page intentionally left blank ...
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