REV. B

–4–

ADN2850

TIMING DIAGRAMS

CPOL = 1

CLK

*

MSB

LSB OUT

MSB

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.

CS

SDO

SDI

Figure 2a. CPHA = 1 Timing Diagram

CLK

CPOL = 0

MSB OUT

LSB

SDO

MSB IN

LSB

SDI

RDY

CPHA = 0

*NOT DEFINED, BUT NORMALLY MSB OF CHARACTER JUST RECEIVED.

THE CPOL = 0 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.

*

CS

Figure 2b. CPHA = 0 Timing Diagram