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LIS2DW12 Datasheet(PDF) 30 Page - STMicroelectronics

Part # LIS2DW12
Description  MEMS digital output motion sensor: high-performance ultra-low-power 3-axis
PDF  66 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LIS2DW12 Datasheet(HTML) 30 Page - STMicroelectronics

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6.2.1
SPI read
Figure 13. SPI read protocol
CS
SPC
SDI
SDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5 AD4 AD3 AD2 AD1 AD0
AD6
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). Additional data in multiple byte reads.
Figure 14. Multiple byte SPI read protocol (2-byte example)
CS
SPC
SDI
SDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5 AD4 AD3 AD2 AD1 AD0
DO15 DO14DO13DO12 DO11DO10 DO9 DO8
AD6
LIS2DW12
SPI bus interface
DS11811 - Rev 8
page 30/66



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