X9258 Datasheet, PDF (9/20 Pages) Xicor Inc. – Quad Digital Controlled Potentiometers (XDCP)

X9258
Write Data Register (WR)
S
T
device type
identifier
device
addresses
S
A
A
R
T
0
1
0
1
A
3
A
2
A
1
A
0
C
K
instruction
opcode
1100
DR and WCR
addresses
RRPP
1010
S
A
Data Byte
(sent by master on SDA)
S
A
S
T
C ^WWWWWWWWC O
K
P
7
P
6
P
5
P
4
P
3
P
2
P
1
P
0
K
P
HIGH-VOLTAGE
WRITE CYCLE
XFR Data Register (DR) to Wiper Counter Register (WCR)
S device type
T identifier
A
R0 _{1 0 1}
T
device
addresses
AAAA
3210
S
A
C
K
instruction
opcode
1101
DR and WCR
addresses
RRPP
1010
SS
AT
CO
KP
XFR Wiper Counter Register (WCR) to Data Register (DR)
S
T
A
R
T
device type
identifier
0101
device
addresses
AAAA
3210
S
A
C
K
instruction
opcode
1110
DR and WCR
addresses
S
A
S
T
R R P P ^CO
1 0 1 0 KP
HIGH-VOLTAGE
WRITE CYCLE
Increment/Decrement Wiper Counter Register (WCR)
S device type device _S instruction
WCR
S ^{increment/decrement} S
T
A
R
T
identifier
0101
addresses _A
AAAAC
3210K
opcode
0010
addresses
0
0
P
1
P
0
A ^{(sent by master on SDA)} T
C _{I/ I/}
KDD
.
.
.
.
I/
D
I/ ^O
DP
Global XFR Data Register (DR) to Wiper Counter Register (WCR)
S device type
T identifier
device
addresses
S
A
instruction
opcode
DR
addresses
SS
AT
A
R
T
0
1
0
1
A
3
A
2
A
1
A
0
C
K
0
0
0
1
R
1
R
0
0
0
CO
KP
Global XFR Wiper Counter Register (WCR) to Data Register (DR)
S device type device
instruction
DR
T
A
R
T
identifier
0101
addresses
AAAA
3210
S
A
C
K
opcode
1000
addresses
R
1
R
0
0
0
S
A
C
K
S
T
O
P
HIGH-VOLTAGE
WRITE CYCLE
9
FN8168.1
May 6, 2005