LIS3DSH datasheet(27/53 Pages) STMICROELECTRONICS

部件名	LIS3DSH

功能描述	MEMS digital output motion sensor ultra low-power high performance three-axis ?쐍ano??accelerometer

PDF	53 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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27 / 53 page

LIS3DSH

Digital interfaces

Doc ID 022405 Rev 1

27/53

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 -7: address AD(6:0). 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-byte example)

6.2.3

SPI read in 3-wire mode

3-wire mode is entered by setting to ‘1’ bit SIM (SPI serial interface mode selection) by

internal register.

SPC

SDI

DI7

D I6 DI5

D I4 DI3

DI2

DI1 DI0

AD5 AD 4 AD 3 AD2 AD 1 AD0

AM10132V1

SPC

SDI

AD5 AD4 AD3 AD2 AD1 AD 0

DI7 D I6 DI5 D I4 DI3 DI2 DI1 DI0 DI15 D I1 4DI13 DI12DI11 DI10 DI9 DI8

AM10133V1

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