x9259uv24i-2.7c7975 Intersil Corporation, x9259uv24i-2.7c7975 Datasheet - Page 11

• Manufacturer Part Number: x9259uv24i-2.7c7975
• Description: Quad Digitally Controlled Xdcp? Potentiometers
• Manufacturer: Intersil Corporation

Instruction Format
Read Wiper Counter Register (WCR)
Write Wiper Counter Register (WCR)
Read Data Register (DR)
Write Data Register (DR)
Global XFR Data Register (DR) to Wiper Counter Register (WCR)
Notes: (1) “MACK”/”SACK”: stands for the acknowledge sent by the Master/Slave.
R
S
A
R
S
A
R
S
A
R
S
T
A
T
S
A
R
T
T
T
T
T
T
T
T
Device Type
Device Type
Device Type
Device Type
0 1 0 1 A3 A2 A1 A0
0
0
0
0
Device Type
Identifier
Identifier
Identifier
Identifier
(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).
Identifier
1
1
1
1
0
0
0
0
1 A3 A2 A1 A0
1 A3 A2 A1 A0
1 A3 A2 A1 A0
1 A3 A2 A1 A0
Addresses
Addresses
Addresses
Addresses
Device
Addresses
Device
Device
Device
Device
11
S
A
C
K
C
S
A
K
C
S
A
C
K
S
A
K
S
A
C
K
1 1 0 0 RB RA P1 P0
1 0 0 1 0 0 P1 P0
1 0 1 0 0 0 P1 P0
1 0 1 1 RB RA P1 P0
Instruction
Instruction
Instruction
Instruction
Opcode
Opcode
Opcode
Opcode
0 0 0 1 RB RA
Instruction
Opcode
Addresses
Addresses
Addresses
DR/WCR
DR/WCR
DR/WCR
Addresses
DR/WCR
X9259
Addresses
DR/WCR
0
S
A
C
K
S
A
C
K
S
A
C
K
S
A
C
K
W
W
0
C
R
(Sent by Master on SDA) S
C
R
(Sent by X9259 on SDA) M
7
7
(Sent by Master on SDA) S
W
C
R
7
W
C
R
(Sent by X9259 on SDA) M
7
W
W
C
R
C
R
6
6
W
C
R
S
A
C
K
6
Wiper Position
Wiper Position
Wiper Position
W
C
R
6
W
W
C
R
C
R
5
5
W
C
R
O
5
S
T
P
Wiper Position
W
C
R
5
W
W
C
R
C
R
W
4
4
C
R
4
W
C
R
4
W
W
C
R
C
R
W
3
3
C
R
3
W
C
R
3
W
W
W
C
R
C
R
C
R
2
2
2
W
C
R
2
W
W
W
C
R
C
R
C
R
1
1
1
W
C
R
1
W
W
W
C
R
C
R
C
R
0
0
0
W
C
R
0
C
A
K
C
C
A
K
A
K
A
C
K
O
S
T
P
O
O
S
T
P
S
T
P
O
S
P
T
April 13, 2007
FN8169.5