Digital input register, Digital input register -69 – National Instruments AT-MIO-16X User Manual
Page 165
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Chapter 4
Register Map and Descriptions
© National Instruments Corporation
4-69
AT-MIO-16X User Manual
Digital Input Register
The Digital Input Register, when read, returns the logic state of the
eight AT-MIO-16X digital I/O lines.
Address:
Base address + 1C (hex)
Type:
Read-only
Word Size:
16-bit
Bit Map:
Bit
Name
Description
15-8
X
Don’t care bits.
7-4
BDIO<3..0>
These four bits represent the logic state
of the digital lines BDIO<3..0>.
3-0
ADIO<3..0>
These four bits represent the logic state
of the digital lines ADIO<3..0>.
7
6
5
BDIO2
4
3
BDIO0
2
ADIO2
1
0
ADIO1
BDIO3
BDIO1
ADIO0
ADIO3
15
MSB
LSB
14
13
X
12
11
X
10
X
9
8
X
X
X
X
X
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