X9269 Datasheet, PDF (12/25 Pages) Xicor Inc. – Dual Digitally-Controlled Potentiometers

X9269
INSTRUCTION FORMAT
Read Wiper Counter Register (WCR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses S
A
C
A3 A2 A1 A0 _K
Instruction
Opcode
1001
DR/WCR
Wiper Position
Addresses S (Sent by X9269 on SDA) M S
A _WWWWWWWWA T
00
0
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 Wiper Counter Register (WCR)
S ^{Device Type}
T ^Identifier
Device
Addresses
Instruction DR/WCR
Wiper Position
S Opcode Addresses S (Sent by Master on SDA) S S
A
R0
T
1
0
A
C
1 A3 A2 A1 A0 _K 1 0 1 0 0 0
0
A _WWWWWWWWA T
P0
C
K
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
K
O
P
76543210
Read Data Register (DR)
S ^{Device Type}
Device
Instruction
DR/WCR
Wiper Position
T
A
R
T
Identifier
0101
Addresses S
A
C
A3 A2 A1 A0 _K
Opcode
1011
Addresses
RB RA 0 P0
S (Sent by X9269 on SDA) M S
A _WWWWWWWWA T
CCCCCCCCCCO
KRRRRRRRRKP
76543210
Write Data Register (DR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
A3 A2 A1 A0
S
A
C
K
Instruction
Opcode
1100
DR/WCR
Addresses
RB RA 0 P0
Wiper Position
S (Sent by Master on SDA) S
A _WWWWWWWW A
CCCCCCCCCC
KRRRRRRRRK
76543210
S
T
O
P
Global XFR Data Register (DR) to Wiper Counter Register (WCR)
S
T
A
R
T
Device Type
Identifier
0101
Device
Addresses
A3 A2 A1 A0
S
A
C
K
Instruction
Opcode
0001
DR/WCR
Addresses
RB RA 0 0
SS
AT
CO
KP
REV 1.1.11 2/17/03
www.xicor.com
Characteristics subject to change without notice. 12 of 25