ad5231 Analog Devices, Inc., ad5231 Datasheet - Page 6

• Manufacturer Part Number: ad5231
• Description: Nonvolatile Memory, 1024-position Digital Potentiometer
• Manufacturer: Analog Devices, Inc.

AD5231
Timing Diagrams
CPOL = 1
CPOL = 0
SDO
CLK
RDY
SDO
RDY
CLK
SDI
SDI
CS
CS
HIGH
OR LOW
HIGH
OR LOW
t
t
14
14
* NOT DEFINED, BUT NORMALLY LSB OF CHARACTER PREVIOUSLY TRANSMITTED.
* NOT DEFINED, BUT NORMALLY MSB OF CHARACTER PREVIOUSLY RECEIVED.
THE CPOL = 1 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.
THE CPOL = 0 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.
t
8
t
8
t
t
2
B23–MSB IN
B23–MSB OUT
2
B24*
t
10
B23
t
t
B23–MSB
4
5
B23–MSB
t
t
1
1
B23
t
t
t
5
4
6
Figure 3. CPHA = 1 Timing Diagram
Figure 4. CPHA = 0 Timing Diagram
t
7
t
6
CPHA = 1
t
Rev. C | Page 6 of 28
10
t
CPHA = 0
7
B0–LSB
B0–LSB
t
11
t
B0
11
B0–LSB
B0
B0–LSB
t
t
3
3
*
t
t
t
t
15
15
9
9
t
t
12
12
t
t
17
17
t
t
16
16
HIGH
OR LOW
t
t
13
13
HIGH
OR LOW