X9259 Xicor, X9259 Datasheet - Page 11

• Manufacturer Part Number: X9259
• Description: Quad Digitally-Controlled (XDCP) Potentiometers
• Manufacturer: Xicor

X9259
Figure 3. Two-Byte Instruction Sequence
Figure 4. Three-Byte Instruction Sequence 2-Wire Interface
Figure 5. Increment/Decrement Instruction Sequence 2-Wire Interface
Figure 6. Increment/Decrement Timing Limits
REV 1.2.3 4/30/02
SCL
SDA
SCL
SDA
INC/DEC
R
Issued
W
CMD
SCL
SDA
S
T
A
R
T
S
T
A
R
T
ID3 ID2 ID1 ID0
ID3 ID2 ID1 ID0
0
0
Device ID
SCL
SDA
Device ID
1
1
0
S
T
A
R
T
0
1
ID3 ID2 ID1 ID0
0
1
A3
Device ID
1
A3
A2 A1 A0 A
0
External
Address
External
Address
A2 A1 A0
1
A3
C
K
A2
External
Address
I3
A
C
K
A1
Voltage Out
Instruction
Opcode
I3
I2
A0
www.xicor.com
Instruction
Opcode
I1 I0
I2
A
C
K
I3
I1
Instruction
Opcode
RB RA
Register
Address
I2
I0
I1
Register
Address
RB
I0
Address
P1 P0 A
Pot/WCR
RA P1 P0 A
Register
Address
RB RA P1
Pot/WCR
Address
C
K
Characteristics subject to change without notice.
D7 D6 D5 D4 D3 D2 D1 D0
C
K
Pot/WCR
Address
P0
t
N
C
1
WRID
Data Register D[7:0]
I
A
C
K
N
C
2
I
WCR[7:0]
S
T
O
P
or
N
C
n
I
D
C
E
1
D
E
C
n
A
C
K
11 of 25
S
O
P
T
S
T
O
P