X9258 Xicor, X9258 Datasheet - Page 10

• Manufacturer Part Number: X9258
• Description: Quad Digital Controlled Potentiometers (XDCP)
• Manufacturer: Xicor

Write Data Register (WR)
XFR Data Register (DR) to Wiper Counter Register (WCR)
XFR Wiper Counter Register (WCR) to Data Register (DR)
Increment/Decrement Wiper Counter Register (WCR)
Global XFR Data Register (DR) to Wiper Counter Register (WCR)
Global XFR Wiper Counter Register (WCR) to Data Register (DR)
X9258
REV 1.1.7 2/4/03
S
A
R
S
A
R
S
A
R
R
S
A
R
T
T
T
T
T
T
S
T
A
T
S
T
A
R
T
T
T
device type
device type
device type
0 1 0 1
0 1 0 1
device type
0 1 0 1
0 1 0 1
0 1 0 1
0 1 0 1
device type
device type
identifier
identifier
identifier
identifier
identifier
identifier
A
3
A
3
A
A
3
addresses
3
addresses
addresses
addresses
A
A
3
3
addresses
addresses
device
device
device
device
A
2
A
2
A
2
A
device
2
device
A
2
A
2
A
1
A
1
A
1
A
1
A
1
A
1
A
0
A
0
A
0
A
0
A
0
A
0
S
A
C
K
C
S
A
K
S
A
C
K
S
A
C
K
C
S
A
K
C
S
A
K
1 1 0 0
1 1 0 1
1 0 0 0
instruction
instruction
1 1 1 0
instruction
instruction
opcode
opcode
0 0 1 0
opcode
0 0 0 1
opcode
instruction
instruction
opcode
opcode
DR and WCR
R
1
R
DR and WCR
R
1
1
addresses
DR and WCR
R
1
addresses
addresses
addresses
R
0
1
R
0
addresses
R
DR
0
R
0
addresses
www.xicor.com
R
0
R
0
0 0
WCR
0
DR
P
1
P
1
P
1
0 0
P
1
P
0
P
0
P
0
C
S
A
K
P
0
S
A
C
K
S
A
C
K
S
A
C
K
O
S
T
P
S
A
C
K
S
A
C
K
(sent by master on SDA)
W
O
P
S
P
7
T
O
S
T
P
O
S
P
T
HIGH-VOLTAGE
W
D
P
WRITE CYCLE
6
I/
(sent by master on SDA)
HIGH-VOLTAGE
increment/decrement
WRITE CYCLE
W
P
D
5
I/
Data Byte
W
P
4
.
W
P
3
.
Characteristics subject to change without notice.
W
P
2
.
W
P
1
.
W
P
0
D
I/
S
A
C
K
D
I/
O
S
T
P
O
S
P
T
HIGH-VOLTAGE
WRITE CYCLE
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