X9111 Xicor, X9111 Datasheet - Page 8

• Manufacturer Part Number: X9111
• Description: Single Digitally-Controlled Potentiometer
• Manufacturer: Xicor

X9111 – Preliminary Information
Figure 3. Four-Byte Instruction Sequence (Write or Read for WCR or Data Registers)
Figure 4. Four-Byte Instruction Sequence (Read Status Registers)
REV 1.1.15 5/9/03
SCK
SCK
CS
CS
SI
SI
ID3 ID2 ID1 ID0 0
ID3 ID2 ID1 ID0 0
0 1 0 1
0 1 0 1
Device ID
Device ID
0
0
Address
Internal
Address
Internal
A1
A1
A0 R/W I2
A0 R/W I2
0
1
Instruction
Instruction
Opcode
Opcode
I1 I0
I1 I0 0 RB RA
0 X X 0 0
0 X X 0 0
0 RB RA
Address
Register
Address
Register
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0 0
0
0
X X
X X
X X X
X X X
X
X
W
C
R
9
X X 0 0 0 0 0 0 0
W
C
R
8
W
C
R
7
Characteristics subject to change without notice.
W
C
R
6
Position
Wiper
W
C
R
5
W
C
R
4
W
C
R
3
W
C
R
2
W
C
R
1
Status
WIP
W
C
R
0
Bit
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