AS5050A datasheet(12/31 Pages) AMSCO

Part #	AS5050A

Description	Low Power 10-Bit Magnetic Position Sensor

PDF	31 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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12 / 31 page

Page 12

ams Datasheet

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[v2-06] 2014-Oct-14

AS5050A − SPI Inter face

The 16-bit SPI interface provides read/write access to the

on-chip registers. The interface only supports slave operation

mode. It communicates at clock rates up to 10 MHz.

The AS5050A SPI uses mode=1 (CPOL=0, CPHA=1) to exchange

data. As shown in Figure 12, a data transfer starts with the

falling edge of CSn (SCL is low). The AS5050A samples the MOSI

input on the falling edge of SCL. SPI commands are executed at

the end of the frame (rising edge of CSn). The bit order is MSB

first. Data is protected by parity.

SPI Timing

Figure 12:

SPI Timing Diagram

SPI Interface

CSn

(Input)

CLK

(Input)

MOSI

(Input)

MISO

(Output)

tclk

tMOSI

tMISO

tOZ

tCSn

tclkL

tclkH

data[15]

data[14]

data[0]

AS5050A Datasheet(PDF) 12 Page - ams AG