X9279 Datasheet, PDF (12/24 Pages) Xicor Inc. – Single Digitally-Controlled (XDCP) Potentiometer

X9279
INSTRUCTION FORMAT
Read 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 0 1
DR/Bank
Wiper Position
Addresses S (Sent by X9279 on SDA) M S
A _WWWWWWWWA T
0
0
0
0
CCC
KRR
C
R
C
R
C
R
CCCCO
RRRKP
76543210
Write Wiper Counter Register (WCR)
S ^{Device Type}
T ^Identifier
Device
Addresses
Instruction DR/Bank
Wiper Position
S Opcode Addresses S (Sent by Master on SDA) S S
A
R0
T
1
0
1
A
A _WWWWWWWWA T
0
C
A2 A1 A0 _K
1
0
1
0
0
0
0
0
CCCCCC
KRRRRR
C
R
C
R
C
R
CO
KP
76543210
Read Data Register (DR)
S ^{Device Type}
Device
Instruction
DR/Bank
Wiper Position
T
A
R
T
Identifier
0101
Addresses S Opcode
Addresses S (Sent by X9279 on SDA) M S
A
A _WWWWWWWWA T
0
C
A2 A1 A0 _K
1
0
1
1
RB RA P1
P0
CC
KR
C
R
C
R
CCCC
RRRR
C
R
CO
KP
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
C
A2 A1 A0 _K
1
1
0
0
RB RA
P1
P0
CCCC
KRRR
C
R
C
R
C
R
C
R
CCO
RKP
76543210
Transfer Wiper Counter Register (WCR) to Data Register (DR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
S
A
Instruction
Opcode
DR/Bank
Addresses
SS
AT
C
CO
0 A 2 A 1 A 0 _K 1 1 1 0 RB RA 0 0 _{K P}
HIGH-VOLTAGE
WRITE CYCLE
REV 1.1.7 2/6/03
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Characteristics subject to change without notice. 12 of 24