X9421 Xicor, X9421 Datasheet - Page 11

• Manufacturer Part Number: X9421
• Description: Single Digitally Controlled (XDCP) Potentiometer
• Manufacturer: Xicor

X9421
Transfer Wiper Counter Register (WCR) to Data Register (DR)
Increment/Decrement Wiper Counter Register (WCR)
Read Status
REV 1.1.6 8/1/02
Falling
Falling
Falling
Edge
Edge
Edge
CS
CS
CS
device type
0 1 0 1 1 1 0
device type
0 1 0 1 1 1 0
0 1 0 1 1 1 0
device type
identifier
identifier
identifier
addresses
addresses
addresses
device
device
device
A
0
A
0
A
0
1 1 1 0
0 1 0 1 0 0 0 1 0 0 0 0 0 0 0
instruction
instruction
0 0 1 0 0 0 0 0 I/D I/D .
instruction
opcode
opcode
opcode
R
1
addresses
www.xicor.com
register
R
0
0 0
Rising
Edge
(sent by X9421 on SO)
CS
(sent by master on SDA)
increment/decrement
Data Byte
HIGH-VOLTAGE
WRITE CYCLE
.
Characteristics subject to change without notice.
.
.
W
P
I
I/D I/D
Rising
Edge
CS
Rising
Edge
CS
11 of 21