X9279 Xicor, X9279 Datasheet - Page 11

• Manufacturer Part Number: X9279
• Description: Single Digitally-Controlled (XDCP) Potentiometer
• Manufacturer: Xicor

X9279
Figure 4. Three-Byte Instruction Sequence
Figure 5. Increment/Decrement Instruction Squence
Figure 6. Increment/Decrement Timing Limits
REV 1.1.7 2/6/03
SCL
SDA
SCL
SDA
INC/DEC
V
Issued
W
CMD
SCL
SDA
S
T
A
R
T
/R
W
S
T
A
R
T
ID3 ID2 ID1 ID0
0
ID3 ID2 ID1 ID0
Device ID
0
1
Device ID
1
0
0
1
1
0
0
0
0
A2 A1 A0
A2
External
Address
External
Address
A1 A0
A
C
K
I3 I2
A
C
K
Voltage Out
Instruction
Opcode
I3
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Instruction
Opcode
I1
I2
I0 RB RA
I1 I0
Register
Address
Register
Address
RB
Pot/Bank
P1 P0 A
Address
RA P1 P0 A
Pot/Bank
Data Register D[7:0] for all values of P1 and P0
Address
C
K
WCR[7:0] valid only when P1=P0=0;
Characteristics subject to change without notice.
D7 D6 D5 D4 D3 D2 D1 D0
C
K
t
WRID
N
C
1
I
N
C
2
I
or
N
C
n
I
D
E
C
1
D
E
C
n
A
C
K
11 of 24
S
T
O
P
O
S
T
P