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LSM303AGR 数据表(PDF) 39 Page - STMicroelectronics

部件名 LSM303AGR
功能描述  Ultra-compact high-performance eCompass module: ultra-low-power 3D accelerometer and 3D magnetometer
PDF  68 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LSM303AGR 数据表(HTML) 39 Page - STMicroelectronics

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LSM303AGR
Digital interfaces
68
6.2.1
Accelerometer SPI write
Figure 11. Accelerometer SPI write protocol
The SPI Write command is performed with 16 clock pulses. A multiple byte write command
is performed by adding blocks of 8 clock pulses to the previous one.
bit 0: WRITE bit. The value is 0.
bit 1: MS bit. When O do not increment address, when 1 increment address in multiple
writing.
bit 2-7: address AD(5:0). This is the address field of the indexed register.
bit 8-15. data 01(7:0) {write mode). This is the data that is written inside the device (MSb
first).
bit 16-...: data Dl(...-8). Further data in multiple byte writes.
Figure 12. Accelerometer multiple byte SPI write protocol (2-byte example)



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