New Transducers TR-5001 User Manual

B. Interrupt Request Lines (IRQ) 

 

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 Reserved 

IRQ6 

Floppy Disk Controller 

IRQ7 Parallel 

Port 

#1 

IRQ8 Real 

Time 

Clock 

IRQ9 

Software Redirected to Int 0Ah 

IRQ10 Reserved 

IRQ11 Reserved 

IRQ12 PS/2 

Mouse 

IRQ13 80287 

IRQ14 Primary 

IDE 

IRQ15 Secondary 

IDE