IBM CI5VGM Series Benutzerhandbuch

 

 
There are a total of 15 IRQ lines available on the Industrial CPU Card. 
Peripheral devices use interrupt request lines to notify CPU for the 
service required. The following table shows the IRQ used by the devices 
on the Industrial CPU Card. 

 

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 

Software Redirected to Int 0Ah 

IRQ10 Reserved 
IRQ11 Reserved 
IRQ12 Reserved 
IRQ13 80287 
IRQ14 Primary 

IDE 

IRQ15 Secondary 

IDE