X9421WV14IZ Datasheet, PDF (10/20 Pages) Intersil Corporation – Single Voltage Potentiometer

X9421
Transfer Data Register (DR) to Wiper Counter Register (WCR)
Transfer the contents of the Register pointed to by R1 - R0 to the WCR.
CS
FALLING
EDGE
DEVICE
TYPE
IDENTIFIER
0101
DEVICE
ADDRESSES
1 1 0 A0
INSTRUCTION
OPCODE
1101
REGISTER
ADDRESSES
R1 R0 0 0
CS
RISING
EDGE
Transfer Wiper Counter Register (WCR) to Data Register (DR)
CS
FALLIN
G EDGE
DEVICE
TYPE
IDENTIFIER
0101
DEVICE
ADDRESSES
1 1 0 A0
INSTRUCTION REGISTER
OPCODE
ADDRESSES
1 1 1 0 R1 R0 0 0
CS
RISING
EDGE
HIGH-VOLTAGE
WRITE CYCLE
Increment/Decrement Wiper Counter Register (WCR)
DEVICE TYPE
DEVICE
INSTRUCTION
CS
IDENTIFIER ADDRESSES
OPCODE
FALLING
INCREMENT/DECREMENT
(SENT BY MASTER ON SDA)
CS
RISING
EDGE 0 1 0 1 1 1 0 A0 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
IDENTIFIER ADDRESSES
OPCODE
CS
(SENT BY X9421 ON SO)
CS
FALLING 0 1 0 1 1 1 0 A0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 W RISING
EDGE
IP EDGE
10
FN8196.4
January 14, 2009