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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