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LSM303AGR Fiches technique(PDF) 41 Page - STMicroelectronics

No de pièce LSM303AGR
Description  Ultra-compact high-performance eCompass module: ultra-low-power 3D accelerometer and 3D magnetometer
PDF  68 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LSM303AGR Fiches technique(HTML) 41 Page - STMicroelectronics

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LSM303AGR
Digital interfaces
68
Figure 15. Magnetometer multiple byte SPI write protocol (2-byte example)
6.2.4
Magnetometer SPI read
Figure 16. Magnetometer SPI read protocol
The SPI read command is performed with 16 clock pulses:
bit 0: WRITE 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 is read from the device (MSb first).
A multiple read command is available in 3-wire mode.
CS
SPC
SDI
RW
AD5 AD4 AD3 AD2 AD1 AD 0
DI7 D I6 DI5 D I4 DI3 DI2 DI1 DI0 DI15 D I1 4 DI13 D I1 2 DI11 DI10 DI9 DI8
AD6
CS
SPC
SDI/O
RW
DO7 D O6 DO5 DO4 DO3 DO2 DO1 DO0
AD5
AD 4 AD 3 AD2 AD1
AD 0
AD6



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