X9251 Xicor, X9251 Datasheet - Page 12

• Manufacturer Part Number: X9251
• Description: Quad Digitally-Controlled (XDCP) Potentiometer
• Manufacturer: Xicor

X9251
Figure 5. Three-Byte Instruction Sequence (Read Status Register)
Figure 6. Increment/Decrement Instruction Sequence
Figure 7. Increment/Decrement Timing Spec
REV 1.3.3 2/10/04
SCK
SCK
CS
CS
SI
SI
ID3 ID2 ID1 ID0
ID3 ID2 ID1 ID0
0
0
Device ID
Device ID
1
1
SCK
R W
SI
0
0
1
1
INC/DEC CMD ISSUED
0
0
0
0
0
0
0
0
Internal
Address
Internal
Address
A1 A0
A1 A0
I3
1
I2
VOLTAGE OUT
Instruction
Opcode
I2
Instruction
Opcode
0
I3
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I1 I0
1
I1 I0
1
Register
Address
RB RA
RB RA
Register
Address
P1
Pot/WCR
Address
P1
Pot/WCR
Address
P0
P0
t WRID
Characteristics subject to change without notice.
0
N
C
1
I
0
N
C
2
I
0
0
N
C
n
I
0
D
E
C
1
0
0
Status
D
E
C
n
WIP
Bit
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