LSM9DS0 datasheet(35/74 Pages) STMICROELECTRONICS

部件名	LSM9DS0

功能描述	iNEMO inertial module 3D accelerometer, 3D gyroscope, 3D magnetometer

PDF	74 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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35 / 74 page

DocID024763 Rev 2

35/74

LSM9DS0

Digital interfaces

6.2.1

SPI read

Figure 13. SPI read protocol

The SPI read command is performed with 16 clock pulses. The multiple byte read command

is performed by adding blocks of 8 clock pulses to the previous one.

bit 0: READ bit. The value is 1.

bit 1: MS bit. When 0, does not increment address; when 1, increments address in multiple

reads.

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

bit 8-15: data DO(7:0) (read mode). This is the data that will be read from the device (MSb

first).

bit 16-... : data DO(...-8). Further data in multiple byte reads.

Figure 14. Multiple byte SPI read protocol (2-byte example)

SPC

SDI

SDO

DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0

AD5 AD4 AD3 AD2 AD1 AD0

AM10130V1

SPC

SDI

SD O

DO 7 DO6 DO 5 DO4 DO 3 DO2 DO 1 DO0

A D5 A D4 AD 3 A D2 A D1 A D0

DO 15 DO 14 DO 13 DO 12 DO 11 DO 10 D O9 D O8

AM10131V1

LSM9DS0 数据表(PDF) 35 Page - STMicroelectronics