HP Vectra Reference Manual page 38

Interrupt Controller Structure
VECTOR VECTOR
IRQ NUMBER ADDRESS INTERRUPT SOURCE
0 08H 000020H Timer 0 Output
1
09H 000024H
Cascade From Controller #3
2 OAH 000028H* Cascade From Controller #2
INT 1
3 OBH 00002CH
Serial Port 2
MASTER
4 OCH
000030H Serial Port 1
5 ODH 000034H
Parallel Port 1
6
OEH 000038H Flexible Disc Controller
7 OFH
00003CH Parallel Port 2
8 70H 0001COH Real Time Clock
9 71H
0001C4H IRQ9 - 1/0 Channel
10 72H 0001C8H
Reserved
INT
11 73H 0001CCH Reserved
2
12
74H
0001 DOH
Reserved
SLAVE
13 75H 0001D4H
Coprocessor (80287)
~,
14 76H
0001 D8H Hard Disc Controller
15 77H
0001 DCH Reserved
16 68H 0001AOH SVC Request - 8041
17 69H
0001A4H OBF - 8041
18 6AH 0001A8H
Reserved
INT
19 6BH 0001ACH Reserved
3
20 6CH
0001 BOH H PH IL Controller
SLAVE
6DH 0001 B4H Reserved 21
22 6EH
0001B8H Reserved
23 6FH 0001 BCH
Reserved
Figure 9
*Vector from IRQ9 should be repeated here for industry standard
compatibility.
Processor Board 21