Dma Channel Selection; Table 2-3. Switch Settings With Corresponding Base I/O Address And Base I/O Address Space - National Instruments AT-DIO-32F User Manual

Chapter 2

Table 2-3. Switch Settings with Corresponding Base I/O Address and Base I/O Address Space

Switch Setting
A9 A8 A7 A6 A5
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
Note: Base I/O address values hex 000 through 0FF are reserved for

DMA Channel Selection

The DMA channel used by the AT-DIO-32F is selected by jumpers on W1 (see Figure 2-1). The
AT-DIO-32F is set at the factory to use DMA Channels 5 and 6. These are the default DMA
channels used by the AT-DIO-32F software handler. Verify that these DMA channels are not
also used by equipment already installed in your computer. If any device uses DMA Channel 5
and/or Channel 6, change the DMA channel used by either the AT-DIO-32F or the other device.
© National Instruments Corporation
Base I/O Address
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
system use. Base I/O address values hex 100 through 3FF are
available on the I/O channel.
Base I/O Address
(hex) Space Used (hex)
000
020
040
060
080
0A0
0C0
0E0
100
120
140
160
180
1A0
1C0
1E0
200
220
240
260
280
2A0
2C0
2E0
300
320
340
360
380
3A0
3C0
3E0
2-7
Configuration and Installation
000 - 01F
020 - 03F
040 - 05F
060 - 07F
080 - 09F
0A0 - 0BF
0C0 - 0DF
0E0 - 0FF
100 - 11F
120 - 13F
140 - 15F
160 - 17F
180 - 19F
1A0 - 1BF
1C0 - 1DF
1E0 - 1FF
200 - 21F
220 - 23F
240 - 25F
260 - 27F
280 - 29F
2A0 - 2BF
2C0 - 2DF
2E0 - 2FF
300 - 31F
320 - 33F
340 - 35F
360 - 37F
380 - 39F
3A0 - 3BF
3C0 - 3DF
3E0 - 3FF
AT-DIO-32F User Manual