X9279 Datasheet, PDF (13/24 Pages) Xicor Inc. – Single Digitally-Controlled (XDCP) Potentiometer

X9279
Transfer Data Register (DR) to Wiper Counter Register (WCR)
S Device Type
T Identifier
Device
Addresses
S
Instruction
Opcode
DR/Bank
Addresses
SS
A
R0
T
1
0
1
A
AT
C
CO
0 A 2 A 1 A 0 _K 1 1 0 1 RB RA 0 0 _{K P}
Increment/Decrement Wiper Counter Register (WCR)
S Device Type
Device
S ^{Instruction DR/Bank} S
Increment/Decrement
S
T
A
R
T
Identifier
0101
Addresses _A Opcode
C
0 A2 A1 A0 _K 0 0 1 0
Addresses _A (Sent by Master on SDA) _T
C
O
0 0 0 0 _K I/D I/D . . . . I/D I/D _P
Notes: (1) “MACK”/”SACK”: stands for the acknowledge sent by the master/slave.
(2) “A3 ~ A0”: stands for the device addresses sent by the master.
(3) “X”: indicates that it is a “0” for testing purpose but physically it is a “don’t care” condition.
(4) “I”: stands for the increment operation, SDA held high during active SCL phase (high).
(5) “D”: stands for the decrement operation, SDA held low during active SCL phase (high).
REV 1.1.7 2/6/03
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Characteristics subject to change without notice. 13 of 24