X9251 Datasheet, PDF (12/25 Pages) Xicor Inc. – Quad Digitally-Controlled (XDCP) Potentiometer

X9251
Figure 5. Three-Byte Instruction Sequence (Read Status Register)
CS
SCK
SI
0 1 0 1 00
1011
ID3 ID2 ID1 ID0 0 0 A1 A0 I3 I2 I1 I0 RB RA _{P1 P0}
0000
000
WIP
Device ID
Internal
Address
Instruction
Opcode
Register Pot/WCR
Address Address
Status
Bit
Figure 6. Increment/Decrement Instruction Sequence
CS
SCK
SI
0 1 0 1 00
ID3 ID2 ID1 ID0 0 0 _{A1 A0}
I2 I3 I1 I0 RB RA P1 P0
II
ID
D
Device ID
Internal
Address
Instruction
Register Pot/WCR
NN
CC
NE
CC
E
C
Opcode
Address Address 1 2
n1
n
Figure 7. Increment/Decrement Timing Spec
SCK
SI
RW
VOLTAGE OUT
INC/DEC CMD ISSUED
tWRID
REV 1.3.3 2/10/04
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