X9119 Datasheet, PDF (11/22 Pages) Xilinx, Inc – Single Digitally-Controlled (XDCP ™ ) Potentiometer

X9119 – Preliminary Information
Write Data Register (DR)
Device Type Device
S ^{Identifier}
Addresses
T
A
R
T
0
1
0
1 A2 A1 A0
Instruction Register
Wiper Position or Data
Wiper Position or Data
Opcode Addresses
(Sent by Master on SDA)
(Sent by Master on SDA)
S
S
S
SS
A
C
K
1
1
0
0
RB RA
0
0
A
C
K
X
X
X
X
X
WW
X
C
R
C
R
A
C
K
WWWWWWWW
CCCCCCCC
RRRRRRRR
A
C
K
T
O
P
98
76543210
Transfer Wiper Counter Register (WCR) to Data Register (DR)
Device Type
Device
S Identifier
Addresses
T
A
R
T
0
1
0
1 A2 A1 A0
Instruction
Register
S ^Opcode
Addresses _{S S}
A
AT
C
CO
K ^{1 1 1 0 RB RA 0 0} K P
HIGH-VOLTAGE
WRITE CYCLE
Transfer Data Register (DR) to Wiper Counter Register (WCR)
Device Type
Device
S Identifier
Addresses
T
A
R
T
0
1
0
1 A2 A1 A0
Instruction
Register
S ^Opcode
Addresses _{S S}
A
AT
C
CO
K 1 1 0 0 RB RA 0 0 K P
Notes: (1) “A2 ~ A0”: stand for the device addresses sent by the master.
(2) WCRx refers to wiper position data in the Wiper Counter Register
REV 1.1.11 3/12/02
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Characteristics subject to change without notice. 11 of 22