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VCM-DAS-3 Datasheet(PDF) 23 Page - List of Unclassifed Manufacturers

Part # VCM-DAS-3
Description  The VCM-DAS-3 is a PC/104-format data acquisition board that provides analog outputs and digital I/O for process control and other applications.
PDF  42 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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VCM-DAS-3 Datasheet(HTML) 23 Page - List of Unclassifed Manufacturers

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Enhanced Mode Registers
VCM-DAS-3 Reference Manual
18
Enhanced Mode Registers
Setting the VCM-DAS-3 to enhanced mode enables three additional functional registers. To
enable enhanced mode, install a jumper on pins V1[13-14].
ENHANCED CONTROL REGISTER
ENCTRL (Write) 030Ah
7
6
5
4
3
2
1
0
CTRL3
CTRL2
CTRL1
CTRL0
SEL3
SEL2
SEL1
SEL0
Table 9: Register Bit Assignments
Bit
Mnemonic
Description
7-4
CTRL
Enhanced DAC Control – These bits select operations to be performed on
specific DAC channels.
CTRL3 CTRL2 CTRL1 CTRL0
Function
0
0
0
0
Set Span: 0V to +5V
0
0
0
1
Set Span: 0V to +10V
0
0
1
0
Set Span: -5V to +5V
0
0
1
1
Set Span: -10V to +10V
0
1
0
0
Set Span: -2.5V to +2.5V
0
1
0
1
Set Span: -2.5V to +7.5V
0
1
1
0
(Reserved. Do not use.)
0
1
1
1
(Reserved. Do not use.)
1
0
0
0
Read DAC
1
0
0
1
Read Span
1
0
1
0
Load DAC (LDAC)
1
0
1
1
DAC Sleep
1
1
0
0
(Reserved. Do not use.)
1
1
0
1
(Reserved. Do not use.)
1
1
1
0
Set Gain
1
1
1
1
Read Gain
3-0
SEL
Channel Selection – These bits select the DAC channel for the operation.
SEL3
SEL2
SEL1
SEL0
Channel
0
0
0
0
0
0
0
0
1
1
0
0
1
0
2
0
0
1
1
3
0
1
0
0
4
0
1
0
1
5
0
1
1
0
6
0
1
1
1
7
1
0
0
0
8
1
0
0
1
9
1
0
1
0
10
1
0
1
1
11
1
1
0
0
12
1
1
0
1
13
1
1
1
0
14
1
1
1
1
15



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