Datasheet

AD5231 Data Sheet
Rev. D | Page 6 of 28
Timing Diagrams
CLK
CPOL = 1
B24*
B23–MSB B0–LSB
B23–MSB
HIGH
OR LOW
HIGH
OR LOW
B23 B0
B0–LSB
RDY
CPHA = 1
*NOT DEFINED, BUT NORMALLY LSB OF CHARACTER PREVIOUSLY TRANSMITTED.
THE CPOL = 1 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.
SDO
SDI
CS
t
2
t
1
t
5
t
4
t
7
t
6
t
10
t
8
t
14
t
11
t
9
t
12
t
3
t
13
t
17
t
15
t
16
02739-003
Figure 3. CPHA = 1 Timing Diagram
CLK
CPOL = 0
B23–MSB OUT B0–LSB
SDO
B23–MSB IN
B23 B0
HIGH
OR LOW
HIGH
OR LOW
B0–LSB
SDI
RDY
CPHA = 0
*NOT DEFINED, BUT NORMALLY MSB OF CHARACTER PREVIOUSLY RECEIVED.
THE CPOL = 0 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.
*
CS
t
2
t
1
t
4
t
5
t
7
t
6
t
10
t
8
t
14
t
11
t
9
t
12
t
3
t
13
t
17
t
15
t
16
02739-004
Figure 4. CPHA = 0 Timing Diagram