AMS AS5048 Eval-Kit Manuale del kit - Pagina 9

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AS5048 Adapter Board

4.3

Multi devices SPI Daisy chain mode

The AS5048 can be daisy chained, using 4 wires only for SPI communication.

In this configuration with n x encoders, the sequence will be processed as follow:

- MCU sets SS/ = 0

- MCU shifts n x 16-bit (e.g. READ command FFFFh) through the chain

- MCU sets SS/=1

At that point all the n x encoders have received the READ command FFFFh.

- MCU sets SS/=0

- MCU shifts n x 16-bit (e.g. NOP command 0000h)

- MCU sets SS/=1

At that point the n x 16-bit received on MISO are the n x angle values.

Figure 7: Multi Devices in Daisy chain mode

3-3.6V

Regulated

Power Supply

GND

ams Eval Kit Manual, Confidential

[v1-3] 2014-Aug-01

MCU

AS5048

Page 9

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