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Mungo545 User’s Manual 83
B. Interrupt Request Lines (IRQ)
There are total of 15 IRQ lines available on the Mungo545.
Peripheral devices using interrupt request lines to notify CPU for the
service required. The following table shows the IRQ used by the devices
on the Mungo545.
Level
Function
IRQ0
System Timer Output
IRQ1
Keyboard
IRQ2
Interrupt Cascade
IRQ3
Serial Port #2
IRQ4
Serial Port #1
IRQ5
Parallel Port #2
IRQ6
Floppy Disk Controller
IRQ7
Parallel Port #1
IRQ8
Real Time Clock
IRQ9
Serial Port #3
IRQ10
Serial Port #4
IRQ11
Reserved
IRQ12
Reserved
IRQ13
80287
IRQ14
Primary IDE
IRQ15
Secondary IDE
Содержание Mungo545
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Страница 86: ...Mungo545 User s Manual 81 Appendix A I O Port Address Map B Interrupt Request Lines IRQ...