X9420_06 Datasheet, PDF (10/19 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer

X9420
Transfer Wiper Counter Register (WCR) to Data Register (DR)
CS
Falling
Edge
device type
identifier
0101
device
addresses
1
1
0
A
0
instruction
opcode
1110
register
addresses
R
1
R
0
0
0
CS
Rising
Edge
HIGH-VOLTAGE
WRITE CYCLE
Increment/Decrement Wiper Counter Register (WCR)
device type device instruction
increment/decrement
CS
Falling
identifier
addresses
opcode
(sent by master on SDA)
CS
Rising
Edge
0
1
0
1
1
1
0
A
0
0
0
1
0
0
0
0
0
I/D I/D
.
.
.
.
I/D I/D
Edge
Read Status
device type device instruction
Data Byte
CS ^{identifier addresses opcode}
(sent by X9420 on SO) _CS
Falling
Edge
0
1
0
1
1
1
0
A
0
0
1
0
1
0
0
0
1
0
0
0
0
0
0
0
W
I
Rising
Edge
P
10
FN8195.1
April 26, 2006