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Chapter 2 Installation and Configuration
© National Instruments Corporation 2-9 DIO 6533 User Manual
Table 2-3 shows the PC AT 16-bit DMA channel assignments.
Note: EISA computers also have channels<0..3> available as 16-bit DMA
channels.
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
Table 2-3. PC AT 16-Bit DMA Channel Assignment Map
Channel Device
7 AT-MIO-16 Series – default
6 AT-MIO-16 Series – default
AT-DIO-32F – default
5 AT-DIO-32F – default
4 Cascade for DMA Controller #1 (channels<0..3>)
Table 2-2. PC AT Interrupt Assignment Map (Continued)
IRQ Device