LIS331DL datasheet(21/38 Pages) STMICROELECTRONICS

部件名	LIS331DL

功能描述	MEMS motion sensor 3-axis - ±2g/±8g smart digital output ?쐍ano??accelerometer

PDF	38 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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LIS331DL

Digital interfaces

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Figure 9.

Multiple bytes SPI read protocol (2 bytes example)

5.2.2

SPI write

Figure 10.

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 will be written inside the device

(MSb first).

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

Figure 11.

Multiple bytes SPI write protocol (2 bytes example)

SPC

SDI

SDO

DO7DO6 DO5DO4 DO3DO2 DO1DO0

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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