X9269 Datasheet, PDF (13/25 Pages) Xicor Inc. – Dual Digitally-Controlled Potentiometers

X9269
Global XFR Wiper Counter Register (WCR) to Data Register (DR)
S Device Type
T Identifier
Device
Addresses
S
Instruction
Opcode
DR/WCR
Addresses
SS
A
R0
T
1
0
A
C
1 A3 A2 A1 A0 _K 1 0 0 0 RB RA 0
AT
CO
0 _KP
HIGH-VOLTAGE
WRITE CYCLE
Transfer Wiper Counter Register (WCR) to Data Register (DR)
S
T
A
R
T
Device Type
Identifier
Device
Addresses
S
A
Instruction
Opcode
DR/WCR
Addresses
SS
AT
C
CO
0 1 0 1 A3 A2 A1 A0 _K 1 1 1 0 RB RA 0 P0 _{K P}
HIGH-VOLTAGE
WRITE CYCLE
Transfer Data Register (DR) to Wiper Counter Register (WCR)
S Device Type
T Identifier
Device
Addresses
S
Instruction
Opcode
DR/WCR
Addresses
SS
A
R0
T
1
0
A
C
1 A3 A2 A1 A0 _K 1 1 0 1 RB RA
0
AT
CO
P0 _{K P}
Increment/Decrement Wiper Counter Register (WCR)
S Device Type
Device
S
T
A
R
Identifier
0101
Addresses _A
C
A3 A2 A1 A0 _K
T
Instruction
Opcode
0010
DR/WCR
Addresses
0 0 0 P0
S
Increment/Decrement
S
A ^{(Sent by Master on SDA)} T
C
O
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 1.1.11 2/17/03
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Characteristics subject to change without notice. 13 of 25