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HTS221 Datasheet(PDF) 19 Page - STMicroelectronics

Part # HTS221
Description  Capacitive digital sensor for relative humidity and temperature
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HTS221 Datasheet(HTML) 19 Page - STMicroelectronics

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DocID026333 Rev 4
19/33
HTS221
Digital interfaces
33
5.2.2
SPI read
Figure 8. 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: MS bit. When 0, does not increment the address, when 1, increments the address in
multiple reads.
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).
A multiple read command is also available in 3-wire mode.



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