X9279 Datasheet, PDF (12/22 Pages) Xicor Inc. – Single Digitally-Controlled (XDCP) Potentiometer

X9279
INSTRUCTION FORMAT
Read Wiper Counter Register (WCR)
S ^{Device Type}
T ^Identifier
Device
Addresses
Instruction DR/Bank
Wiper Position
S Opcode Addresses S (Sent by X9279 on SDA) M S
A
R0
T
1
0
1
A
A _WWWWWWWW A T
0
A2
A1 A0
C
K
1
0
0
1
0
0
0
0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Write Wiper Counter Register (WCR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Instruction
Addresses S Opcode
A
C
0 A2 A1 A0 _K 1 0 1 0
DR/Bank
Wiper Position
Addresses S (Sent by Master on SDA) S S
A _WWWWWWWW A T
0
0
0
0
CCCCCCCCCC
KRRRRRRRRK
O
P
76543210
Read Data Register (DR)
S ^{Device Type}
T ^Identifier
A
Device
Addresses
Instruction
S Opcode
A
DR/Bank
Addresses
Wiper Position
S (Sent by X9279 on SDA) M S
A _WWWWWWWW A T
R0
T
1
0
1
C
0 A2 A1 A0 _K 1 0 1
1
RB
RA
P1
P0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Write Data Register (DR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Instruction
DR/Bank
Wiper Position
Addresses S Opcode
Addresses S (Sent by Master on SDA) S S
A
A _WWWWWWWWA T
0
A2
A1 A0
C
K
1
1
0
0
RB
RA
P1
P0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Transfer Wiper Counter Register (WCR) to Data Register (DR)
S Device Type
T Identifier
A
Device
Addresses
S
A
Instruction
Opcode
C
DR/Bank
Addresses
SS
A T HIGH-VOLTAGE
C O WRITE CYCLE
R0
T
1
0
1 0 A 2 A 1 A 0 _K 1 1 1 0 RB RA 0 0 _{K P}
12
FN8175.2
September 27, 2005