x9430 Intersil Corporation, x9430 Datasheet - Page 9

• Manufacturer Part Number: x9430
• Description: Dual Digitally Controlled Potentiometer Xdcp ?with Operational Amplifier
• Manufacturer: Intersil Corporation

X9430 – Preliminary Information
Transfer Data Register (DR) to Wiper Counter Register (WCR)
Transfer the contents of the Register pointed to by R
Transfer Wiper Counter Register (WCR) to Data Register (DR)
Transfer the contents of the WCR to the Register pointed to by R
Increment/Decrement Wiper Counter Register (WCR)
Enable Increment/decrement of the WCR pointed to by P
Global Transfer Data Register (DR) to Wiper Counter Register (WCR)
Transfer the contents of all four Data Registers pointed to by R
Global Transfer Wiper Counter Register (WCR) to Data Register (DR)
Transfer the contents of all WCRs to their respective data Registers pointed to by R
Read Status
Returns the contents of the WIP bit which indicates if an internal write cycle is in progress
REV 1.0 6/20/00
Falling
Falling
Falling
Falling
Falling
Falling
Edge
Edge
Edge
Edge
Edge
Edge
CS
CS
CS
CS
CS
CS
device type
device type
0 1 0 1 0 0
device type
0 1 0 1 0 0
0 1 0 1 0 0
device type
0 1 0 1 0 0
0 1 0 1 0 0
0 1 0 1 0 0
device type
device type
identifier
identifier
identifier
identifier
identifier
identifier
addresses
addresses
addresses
addresses
addresses
addresses
device
device
device
device
device
device
A
1
A
1
A
1
A
1
A
1
A
1
A
0
A
0
A
0
A
0
A
0
A
0
1 1 0 1
1 0 0 0
instruction
1 1 1 0
instruction
0 1 0 1 0 0 0 1 0 0 0 0 0 0 0
instruction
instruction
0 0 1 0 X X 0
0 0 0 1
opcode
opcode
instruction
opcode
instruction
opcode
opcode
opcode
R
R
1
1
addresses
1
R
1
addresses
addresses
-R
DR/WCR
addresses
www.xicor.com
R
1
DR/WCR
1
addresses
addresses
R
0
-P
0
R
wiper
0
DR
R
0
to the WCR
WCR
0
R
0
DR
0 0
1
0
-R
0
0 0
0
to their respective WCR
P
0
1
P
0
P
0
Rising
-R
Edge
CS
Rising
(sent by X9430 on SO)
0
Rising
Edge
D
I/
Edge
Rising
(sent by master on SDA)
Edge
CS
P
CS
CS
0
increment/decrement
: 0-WCR0, 1-WCR1
D
I/
Data Byte
HIGH-VOLTAGE
.
WRITE CYCLE
HIGH-VOLTAGE
WRITE CYCLE
1
-R
.
0
.
Characteristics subject to change without notice.
.
D
I/
W
P
I
D
I/
Rising
Edge
CS
Rising
Edge
CS
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