X9259_07 Datasheet, PDF (12/21 Pages) Intersil Corporation – Quad Digitally-Controlled Potentiometers

X9259
Global XFR Wiper Counter Register (WCR) to Data Register (DR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
S
A
C
A3 A2 A1 A0 _K
Instruction
Opcode
1000
DR/WCR
Addresses
RB RA 0 0
S
A
C
K
S
T
O
P
HIGH-VOLTAGE
WRITE CYCLE
Transfer Wiper Counter Register (WCR) to Data Register (DR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
S
A
Instruction
Opcode
DR/WCR
Addresses
SS
AT
C
CO
A3 A2 A1 A0 _K 1 1 1 0 RB RA P1 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
AT
C
CO
1 A3 A2 A1 A0 _K 1 1 0 1 RB RA P1 P0 _{K P}
Increment/Decrement Wiper Counter Register (WCR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
A3 A2 A1 A0
S
A
C
K
Instruction
Opcode
0010
DR/WCR
Addresses
0 0 P1 P0
S
A
C
K
Increment/Decrement
(Sent by Master on SDA)
I/D I/D . . . . I/D I/D
S
T
O
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).
12
FN8169.5
April 13, 2007