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LPS22HB データシート(PDF) 31 Page - STMicroelectronics

部品番号 LPS22HB
部品情報  MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer
PDF  49 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LPS22HB データシート(HTML) 31 Page - STMicroelectronics

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LPS22HB
Digital interfaces
49
7.3.3
SPI read in 3-wire mode
A 3-wire mode is entered by setting bit SIM to ‘1’ (SPI serial interface mode selection) in
CTRL_REG1 (10h).
Figure 20. SPI read protocol in 3-wire mode
The SPI read command is performed with 16 clock pulses:
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 is read from the device (MSb first).
A multiple read command is also available in 3-wire mode.



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