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Chapter 4 Register Map and Descriptions
AT-MIO-16X User Manual 4-70
©
National Instruments Corporation
Digital Output Register
Writing to the Digital Output Register controls the eight AT-MIO-16X
digital I/O lines. The Digital Output Register controls both ports A and
B. When either digital port is enabled, the pattern contained in the
Digital Output Register is driven onto the lines of the digital port.
Address: Base address + 1C (hex)
Type: Write-only
Word Size: 16-bit
Bit Map:
Bit Name Description
15-8 0 Reserved
7-4 BDIO<3..0> These four bits control the digital lines
BDIO<3..0>. The bit DIOPBEN in
Command Register 2 must be set for
BDIO<3..0> to be driven onto the digital
lines BDIO<3..0>.
3-0 ADIO<3..0> These four bits control the digital lines
ADIO<3..0>. The bit DIOPAEN in
Command Register 2 must be set for
ADIO<3..0> to be driven onto the digital
lines ADIO<3..0>.
76 5
BDIO2
43
BDIO0
2
ADIO2
10
ADIO1BDIO3 BDIO1 ADIO0ADIO3
15
MSB
LSB
14 13
0
12 11
0
10
0
98
000 00