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Chapter 2 Installation and Configuration
AT-MIO/AI E Series User Manual 2-6
National Instruments Corporation
Table 2-2. PC AT Interrupt Assignment Map
IRQ
Device
15
Available
14 Fixed Disk Controller
13 Coprocessor
12 AT-DIO-32F – default
11 AT-DIO-32F – default
10 AT-MIO-16 – default
9 PC Network – default
PC Network Alternate – default
8 Real Time Clock
7 Parallel Port 1 (LPT1)
6 Diskette Drive Controller
Fixed Disk and Diskette Drive Controller
5 Parallel Port 2 (LPT2)
PC-DIO-24 – default
Lab-PC/PC+ – default
4 Serial Port 1 (COM1)
BSC, BSC Alternate
3 Serial Port 2 (COM2)
BSC, BSC Alternate
Cluster (primary)
PC Network, PC Network Alternate
WD EtherCard+ – default
3Com EtherLink – default
2 IRQ 8-15 Chain (from interrupt controller 2)
1 Keyboard Controller Output Buffer Full
0 Timer Channel 0 Output