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X9420WS Datasheet(PDF) 7 Page - Xicor Inc.

Part # X9420WS
Description  Single Digitally Controlled (XDCP) Potentiometer
PDF  20 Pages
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Manufacturer  XICOR [Xicor Inc.]
Direct Link  http://www.xicor.com
Logo XICOR - Xicor Inc.

X9420WS Datasheet(HTML) 7 Page - Xicor Inc.

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X9420
Characteristics subject to change without notice.
7 of 20
REV 1.1.6 7/30/02
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Table 3. Instruction Set
Instruction
Instruction Set
Operation
I3
I2
I1
I0 R1 R0
Read Wiper Counter
Register
1
0
0
1
0
0
0
0
Read the contents of the Wiper Counter Register
Write Wiper Counter
Register
1
0
1
0
0
0
0
0
Write new value to the Wiper Counter Register
Read Data Register
1
0
1
1
R1
R0
0
0
Read the contents of the Data Register pointed to
by R1–R0
Write Data Register
1
1
0
0
R1
R0
0
0
Write new value to the Data Register pointed to by
R1–R0
XFR Data Register to
Wiper Counter
Register
11
0
1
R1
R0
0
0
Transfer the contents of the Data Register pointed
to by R1–R0 to the Wiper Counter Register
XFR Wiper Counter
Register to Data
Register
11
1
0
R1
R0
0
0
Transfer the contents of the Wiper Counter
Register to the Data Register pointed to by R1–R0
Increment/Decrement
Wiper Counter
Register
0
0
1
0
0
0
0
0
Enable Increment/decrement of the Wiper Counter
Register
Read Status (WIP bit)
0
1
0
1
0
0
0
1
Read the status of the internal write cycle, by
checking the WIP bit.



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