LSM6DSMTR datasheet(41/113 Pages) STMICROELECTRONICS

Numer części	LSM6DSMTR

Szczegółowy opis	always-on 3D accelerometer and 3D gyroscope

PDF	113 Pages

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Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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LSM6DSM

Digital interfaces

113

In multiple read/write commands further blocks of 8 clock periods will be added. When the

CTRL3_C (12h) (IF_INC) bit is ‘0’, the address used to read/write data remains the same for

every block. When the CTRL3_C (12h) (IF_INC) bit is ‘1’, the address used to read/write

data is increased at every block.

The function and the behavior of SDI and SDO remain unchanged.

6.5.1

SPI read

Figure 12. SPI read protocol

The SPI Read command is performed with 16 clock pulses. A 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 1-7: address AD(6:0). 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 13. Multiple byte SPI read protocol (2-byte example)

LSM6DSMTR Arkusz danych(PDF) 41 Page - STMicroelectronics