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LIS331DLM Scheda tecnica(PDF) 22 Page - STMicroelectronics

Il numero della parte LIS331DLM
Spiegazioni elettronici  MEMS digital output motion sensor ultra low-power high performance 3-axes ?쐍ano??accelerometer
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
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Digital interfaces
LIS331DLM
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Doc ID 15102 Rev 4
Figure 10.
Multiple bytes SPI write protocol (2 bytes example)
5.2.3
SPI read in 3-wires mode
3-wires mode is entered by setting to ‘1’ bit SIM (SPI serial interface mode selection) in
CTRL_REG4.
Figure 11.
SPI read protocol in 3-wires mode
The SPI Read command is performed with 16 clock pulses:
bit 0: READ bit. The value is 1.
bit 1: MS bit. When 0 do not increment address, when 1 increment address in multiple
reading.
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 is read from the device (MSb first).
Multiple read command is also available in 3-wires mode.
CS
SPC
SDI
RW
AD5 AD4 AD3 AD2 AD1 AD0
DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0 DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8
MS
CS
SPC
SDI/O
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5 AD4 AD3 AD2 AD1 AD0
MS



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