Curtis AR-B1682 - Manual (Page 55)

~ Page 49 ~
B-1. INTERRUPT MAP
IRQ ASSIGNMENT
0 System TIMER interrupt from TIMER-0
1 Keyboard output buffer full
2 Cascade for IRQ 8-15
3 Serial port 2
4 Serial port 1
5 Parallel port 2
6 Floppy Disk adapter
7 Parallel port 1
8 RTC clock
9 Available
10 Available
11 Available
12 Available
13 Math coprocessor
14 Hard Disk adapter
15 Available