Dac1 Register - National Instruments DAQ AT-MIO-16X User Manual

Multifunction i/o board for the pc at/eisa
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15
14
13
D15
D14
D13
MSB
© National Instruments Corporation

DAC1 Register

Writing to the DAC1 Register loads the value written to the analog
output DAC Channel 1 in immediate update mode. If posted update
mode is used, the value written to the DAC1 Register is buffered and
updated to the analog output DAC Channel 1 only after an access to the
DAC Update Register or a timer trigger is received in one of the
prescribed paths.
Address:
Type:
Word Size:
Bit Map:
12
11
10
9
D12
D11
D10
D9
Bit
Name
15-0
D<15..0>
Chapter 4
Base address + 12 (hex)
Write-only
16-bit
8
7
6
5
D8
D7
D6
D5
Description
Data bus to the analog output DACs. The
data written to the DACs is interpreted in
straight binary form when DAC Channel
1 is configured for unipolar operation.
When DAC Channel 1 is configured for
bipolar operation, the data is interpreted
in two's complement form.
4-45
Register Map and Descriptions
4
3
2
1
D4
D3
D2
D1
AT-MIO-16X User Manual
0
D0
LSB

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