X9271 Xicor, X9271 Datasheet - Page 11

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X9271

Manufacturer Part Number
X9271
Description
Single Digitally-Controlled (XDCP) Potentiometer
Manufacturer
Xicor
Datasheet

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X9271
INSTRUCTION FORMAT
Read Wiper Counter Register (WCR)
Write Wiper Counter Register (WCR)
Read Data Register (DR)
Write Data Register (DR)
Transfer Wiper Counter Register (WCR) to Data Register (DR)
REV 1.1.7 2/6/03
Falling
Falling
Falling
Falling
Falling
Edge
Edge
Edge
Edge
Edge
CS
CS
CS
CS
CS
Device Type
Device Type
Device Type
Device Type
0
0
0
0 1 0 1 0 0 A1 A0 1 1 0 0 RB RA P1 P0 D7 D 6 D5 D4 D3 D2 D1 D0
0
Device Type
Identifier
Identifier
Identifier
Identifier
Identifier
1
1
1
1
0
0
0
0
1 0 0 A1 A0 1 0 0 1 0 0
1 0 0 A1 A0 1 0 1 0 0 0
1 0 0 A1 A0 1 0 1 1 RB RA P1 P0 D7 D 6 D5 D4 D3 D2 D1 D0
1 0 0 A1 A0 1 1 1 0 RB
Addresses
Addresses
Addresses
Addresses
Addresses
Device
Device
Device
Device
Device
Instruction
Instruction
Instruction
Opcode
Instruction
Opcode
Instruction
Opcode
Opcode
Opcode
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Addresses
Addresses
Addresses
DR/Bank
Addresses
DR/Bank
DR/Bank
DR/Bank
Addresses
DR/Bank
RA
0
0
0
0
0
W
W
C
R
C
R
7
7
(Sent by X9271 on SO)
0
(Sent by Host on SI)
W
W
C
R
C
R
6
6
Rising
Wiper Position
Edge
W
W
C
R
C
R
CS
5
5
(Sent by X9271 on SO)
Data Byte
(Sent by Host on SI)
W
W
C
R
C
R
4
4
Characteristics subject to change without notice.
W
W
C
R
C
R
Data Byte
3
3
HIGH-VOLTAGE
Data Byte
WRITE CYCLE
W
W
C
R
C
R
2
2
W
W
C
R
C
R
1
1
W
W
C
R
C
R
0
0
Rising
Rising
Edge
Edge
CS
CS
Rising
Edge
Rising
Edge
CS
CS
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