X9460 Datasheet, PDF (9/16 Pages) Intersil Corporation – Dual Audio Control Digitally Controlled Potentiometer

X9460
Instruction Formats
Read Wiper Counter Register (Single device on 2-wire bus only)
S ^{device type device}
T ^{identifier addresses}
A
R
T
0
1
0
1
0
A
1
A
0
Left wiper position
Right wiper position
S _{(sent by slave on SDA)} M _{(sent by slave on SDA)} M S
A
A
AT
C
L L L L LC
RRRRRCO
K
0
0
0
D
4
D
3
D
2
D
1
D
0
K
0
0
0
D
4
DDDD
3210
K
P
Write Wiper Counter Register
S ^{device type}
T ^identifier
A
R
T0101
device
addresses
0
A
1
A
0
instruction
S _opcode
A
Left or Right wiper
wiper
addresses
S
A
position
(sent by master on SDA)
SS
AT
C
C
CO
K
1
0
1
0
0
Z
D
R
T
L
T
K
0
0
0
DDDDD
43210
K
P
Write Both Wiper Counter Registers
S ^{device type device}
T ^{identifier addresses}
A
R
T
0
1
0
1
0
A
1
A
0
instruction
S _opcode
A
C
K1010
wiper
addresses
0
Z
D
1
1
S
A
C
K
Left wiper position
(sent by master on _S
SDA)
A
LLLLLC
0 0 0DDDDDK
43210
Right wiper position
(sent by master on _{S S}
SDA)
AT
RRRRRC ^O
0 0 0 DDDDD K P
43210
Increment/Decrement Wiper Counter Register
S ^{device type}
T ^identifier
A
R0 _{1 0 1}
T
device
addresses
0 A1 A0
instruction
wiper
increment/decrement
S _opcode
addresses ^S (sent by master on SDA) ^S
A
A
T
C
C
O
K ^{0 0 1 0 0 ZD RT LT} K ^{I/D I/D . . . . I/D I/D} P
Definitions:
1. “MACK”/“SACK”: stands for the acknowledge sent by the master/slave.
2. “A1 ~ A0”: stands for the device addresses sent by the master.
3. “I”: stands for the increment operation, SDA held high during active SCL phase (high).
4. “D”: stands for the decrement operation, SDA held low during active SCL phase (high).
9
FN8203.2
October 17, 2005