X9111 Datasheet, PDF (10/21 Pages) Xicor Inc. – Single Digitally-Controlled Potentiometer

X9111 – Preliminary Information
Write Data Register (DR)
Device Type
Identifier
CS
Falling
Edge _{0 1 0 1}
Device
Addresses
0 A1 A0
Instruction Register
Opcode Addresses
1 1 0 0 RB RA 0 0
Wiper Position or Data Wiper Position or Data
(Sent by Master on SI) (Sent by Master on SI)
CS
X
X
X
X
X
X
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
Rising
Edge
987 6 5 4 3 2 1 0
Transfer Data Register (DR) to Wiper Counter Register (WCR)
CS
Falling
Edge
Device Type
Identifier
0101
Device
Addresses
0 A1 A0
Instruction
Opcode
1100
Register
Addresses
RB RA 0 0
CS
Rising
Edge
Transfer Wiper Counter Register (WCR) to Data Register (DR)
CS
Falling
Edge
Device Type
Identifier
0101
Device
Addresses
0 A1 A0
Instruction
Opcode
1110
Register
Addresses
RB RA 0 0
CS
Rising
Edge
HIGH-VOLTAGE
WRITE CYCLE
Read Status Register (SR)
CS
Falling
Edge
Device Type
Identifier
0101
Device
Addresses
0 A1 A0
Instruction
Opcode
0100
Register
Addresses
0001
Status Data
(Sent by Slave on SO)
XXXXXXXX
Status Data
(Sent by Slave on SO)
CS
Rising
Edge
0 0 0 0 0 0 0 WIP
Notes: (1) “A0 and A1”: stand for the device address sent by the master.
(2) WCRx refers to wiper position data in the Wiper Counter Register
(3) “X”: Don’t Care.
REV 1.1.15 5/9/03
www.xicor.com
Characteristics subject to change without notice. 10 of 21