Juniper Systems Allegro DOS Manual - Manual (Page 133)

Allegro DOS Owner’s Manual 133
Hardware Interrupt Listing
The following chart shows the interrupt-level assignments in
decreasing priority.
Level Function
Microprocessor NMI Parity or I/O Channel Check
Interrupt Controllers
CTRL 1 CTRL 2
IRQ 0 Timer Output 0
IRQ 1 Keyboard (Output Buffer Full)
IRQ 2 Interrupt from CTRL 2
IRQ 8 Real Time Clock Interrupt
IRQ 9 Not Used*
IRQ 10 Not Used*
IRQ 11 Expansion Port UART
IRQ 12 Touchscreen
IRQ 13 Not Used
IRQ 14 Not Used*
IRQ 15 Not Used*
IRQ 3 Serial Port 2
IRQ 4 Serial Port 1
IRQ 5 Sound Chip
IRQ 6 Not Used
IRQ 7 Not Used*
*PC Card IRQ assigned by Card and Socket Services.