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Command register 3 – National Instruments PC-LPM-16/PnP User Manual

Page 81

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Appendix D Register-Level Programming

National Instruments Corporation

D-9

PC-LPM-16/PnP User Manual

Command Register 3

Command Register 3 contains other range setting configuration bits.

Address:

05 (hex)

Type:

Write-only

Word Size:

8-bit

Bit Map:

Bit

Name

Description

7–2

0

Reserved Bits—These bits must be set to zero.

1–0

ARNG<1..0>

Analog Input Voltage Range—These bits control the
analog input voltage range setting as follows:

The power-on value for ARNG<1..0> is 10.

7

6

5

4

3

2

1

0

0

0

0

0

0

0

ARNG<1>

ARNG<0>

ARNG<1..0>

Input Voltage Range

00

0 to 10 V

10

±

5 V, 0 to 5 V

11

±

2.5 V

a.Book : l.Appendix D Page 9 Wednesday, November 20, 1996 6:36 PM