LIS3DH datasheet(24/42 Pages) STMICROELECTRONICS

부품명	LIS3DH

상세설명	ultra low-power high performance 3-axes ?쐍ano??accelerometer

PDF	42 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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24 / 42 page

Digital interfaces

LIS3DH

24/42

Doc ID 17530 Rev 1

Figure 8.

Multiple bytes SPI read protocol (2 bytes example)

6.2.2

SPI write

Figure 9.

SPI write protocol

The SPI Write command is performed with 16 clock pulses. Multiple byte write command is

performed adding blocks of 8 clock pulses at the previous one.

bit 0: WRITE bit. The value is 0.

bit 1: MS bit. When 0 do not increment address, when 1 increment address in multiple

writing.

bit 2 -7: address AD(5:0). This is the address field of the indexed register.

bit 8-15: data DI(7:0) (write mode). This is the data that is written inside the device (MSb

first).

bit 16-... : data DI(...-8). Further data in multiple byte writing.

Figure 10.

Multiple bytes SPI write protocol (2 bytes example)

SPC

SDI

SDO

DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0

AD5 AD4 AD3 AD2 AD1 AD0

DO15DO14DO13DO12DO11DO10DO9 DO8

SPC

SDI

DI7

DI6

DI5

DI4

DI3

DI2

DI1

DI0

AD5 AD4 AD3 AD2 AD1 AD0

SPC

SDI

AD5 AD4 AD3 AD2 AD1 AD0

DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0 DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8

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