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LPS27HHTW 数据表(PDF) 25 Page - STMicroelectronics

部件名 LPS27HHTW
功能描述  MEMS pressure sensor: 260-1260 hPa absolute digital output barometer with embedded temperature sensor in water-resistant package
PDF  55 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LPS27HHTW 数据表(HTML) 25 Page - STMicroelectronics

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7.3.2
SPI write
Figure 20. SPI write protocol
CS
SPC
SDI
RW
DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0
AD5 AD4 AD3 AD2 AD1 AD0
AD6
The SPI write command is performed with 16 clock pulses. The 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 1-7: address AD(6:0). This is the address field of the indexed register.
bit 8-15: data DI(7:0) (write mode). This is the data that is written in the device (MSb first).
bit 16-...: data DI(...-8). Further data in multiple byte writes.
Figure 21. Multiple byte SPI write protocol (2-byte example)
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
AD6
LPS27HHTW
SPI bus interface (CS = low)
DS13489 - Rev 1
page 25/55



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