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Revision 1.4

10 - 27

AS5132

Datasheet - Detailed Descri p ti on

7.1.2 Extended Synchronous Serial Interface Mode

The absolute angle data can be read out over the synchronous serial interface using the pins CSN, DIO and CLK. It is a bidirectional interface

therefore a read or write access is possible. The organization of the protocol is byte wise and starts with the command byte followed by the data

information.

Figure 8. Connectivity During Programming in Extended Mode

Figure 9. SSI Timing in Extended Write Mode

Micro

Controller

100nF

CSN

CLK

DIO

+5V

VDD

VSS

VSS

VDD

VDD

VSS

I/O

Output

Output

8. 0 – 8.5V

PROG

10 µF 100 n

AS5132

VDDP*

*DIO output pin is connected internally to the VDDP voltage domain. VDD and VDDP can be separately connected too.

CMD6

CSN

D63

command phase

extended data phase

t1

12

3

CMD7

8

7

CMD0

910

11

CMD5

t2

t3

t6

D62

D1

D0

12

13

67

68

69

70

72

71

DIO

DCLK