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VCM-DAS-3 Datasheet(PDF) 22 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) 22 Page - List of Unclassifed Manufacturers

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I/O Port Mapping
VCM-DAS-3 Reference Manual
17
Table 7: Compatible Mode I/O Port Addresses
Write Register
Read Register
I/O Port Address
As Shipped
Address
DIOCTRL
DIOCTRL
Base Address + 7
0x307
DIOC
DIOC
Base Address + 6
0x306
DIOB
DIOB
Base Address + 5
0x305
DIOA
DIOA
Base Address + 4
0x304
EXTRIG
EXTRIG
Base Address + 3
0x303
DACSEL
–
Base Address + 2
0x302
DACHI
DACALL1
Base Address + 1
0x301
DACLO
DACALL0
Base Address + 0
0x300
I/O PORT REGISTER FUNCTIONS
The following table lists the functions assigned to each read and write I/O port register.
Table 8: Register Functions
Write Register
Description
Page
ENCTRL
Enhanced control
18
ENDATHI
Enhanced Data MSB
19
ENDATLO
Enhanced Data LSB
19
DIOCTRL
Digital I/O control register
20
DIOC
Digital I/O port C data
22
DIOB
Digital I/O port B data
22
DIOA
Digital I/O port A data
22
EXTRIG
External trigger enable
23
DACSEL
DAC channel register
24
DACHI
Analog output most significant data byte (MSB).
25
DACLO
Analog output least significant data byte (LSB).
25
Read Register
Description
Page
ENCTRL
Enhanced control
18
ENDATHI
Enhanced Data MSB
19
ENDATLO
Enhanced Data LSB
19
DIOCTRL
Digital I/O control register
20
DIOC
Digital I/O port C data
21
DIOB
Digital I/O port B data
21
DIOA
Digital I/O port A data
21
EXTRIG
External trigger enable
23
DACALL1
Update all DACs simultaneously
25
DACALL0
Update all DACs simultaneously
25



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