System Resources
79
M-302
B.5 Interrupt Request (IRQ) Lines
IRQ Lines PIC Mode
Table B-5: 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 Interrupt
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
Serial Port 3, (COM3) /
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
Serial Port 4, 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)
Содержание M-302
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Страница 12: ...xii List of Tables This page intentionally left blank ...
Страница 25: ...Introduction 13 M 302 1 9 Mechanical Drawing Figure 1 4 M 302 Board Dimensions Dimensions in mm ...
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Страница 44: ...32 Getting Started 7 Close the load plate A then fasten the load lever on the retention tab B A B ...
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Страница 62: ...50 BIOS Setup 4 5 Integrated Peripherals On Chip IDE Device ...
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