X9401_06 Datasheet, PDF (6/19 Pages) Intersil Corporation – Quad, 64 Tap, Digitally Controlled Potentiometer

Figure 3. Two-Byte Command Sequence
X9401
CS
SCK
SI
0 1 0 1 0 0 A1 A0 I3 I2 I1 I0 R1 R0 P1 P0
Figure 4. Three-Byte Command Sequence (Write)
CS
SCL
SI
0 1 0 1 0 0 A1 A0
I3 I2 I1 I0 R1 R0 P1 P0
0 0 D5 D4 D3 D2 D1 D0
Figure 5. Three-Byte Command Sequence (Read)
CS
SCL
SI
0 1 0 1 0 0 A1 A0
I3 I2 I1 I0 R1 R0 P1 P0
S0
Figure 6. Increment/Decrement Command Sequence
Don’t Care
0 0 D5 D4 D3 D2 D1 D0
CS
SCK
SI
0 1 0 1 0 0 A1 A0
I3 I2 I1 I0 0 0 P1 P0
II
ID
D
NN
NE
E
CC
CC
C
12
n1
n
6
FN8190.3
October 12, 2006