Programming
Chapter 4
AT-MIO-16D User Manual
4-18
© National Instruments Corporation
DAC1 Register
Writing to DAC1 loads the corresponding analog output channel DAC. The voltages generated
by the analog output channels are updated either immediately or when an active low pulse occurs
on OUT2. The update method is selected by the LDAC bit in Command Register 2.
Address:
Base a 12 (hex)
Type:
Write-only
Word Size:
16-bit
Bit Map:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
X
X
X
X
D11
D10
D9
D6
D7
D6
D5
D4
D3
D2
D1
D0
MSB
LSB
Bit
Name
Description
15-12
X
Don't care bits.
11-0
D<11..0>
These twelve bits are loaded into the DAC and update the voltage
generated by the analog output channel in one of two ways,
immediately or upon an OUT2 pulse. See the Programming the
Analog Output Circuitry section later in this chapter for Tables 4-5
and 4-6, both of which map digital values to output voltage.
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