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BMP280 데이터시트(PDF) 26 Page - Bosch Sensortec GmbH

부품명 BMP280
상세설명  Digital Pressure Sensor
PDF  49 Pages
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제조업체  BOSCH [Bosch Sensortec GmbH]
홈페이지  https://www.bosch-sensortec.com
Logo BOSCH - Bosch Sensortec GmbH

BMP280 데이터시트(HTML) 26 Page - Bosch Sensortec GmbH

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Bosch Sensortec | BMP280 Data sheet
26 |
49
Modifications reserved | Data subject to change without notice
Document number: BST-BMP280-DS001-26 Revision_1.26_102021
Table 22: register settings osrs_t
osrs_t[2:0]
Temperature oversampling
000
Skipped (output set to 0x80000)
001
oversampling ×1
010
oversampling ×2
011
oversampling ×4
100
oversampling ×8
101, 110, 111
oversampling ×16
4.3.5
Register 0xF5 “config”
The “config” register sets the rate, filter and interface options of the device. Writes to the “config”
register in normal mode may be ignored. In sleep mode writes are not ignored.
Table 23: Register 0xF5 “config”
Register 0xF5
“config”
Name
Description
Bit 7, 6, 5
t_sb[2:0]
Controls inactive duration tstandby in normal mode.
See chapter 3.6.3 for details.
Bit 4, 3, 2
filter[2:0]
Controls the time constant of the IIR filter. See
chapter 3.3.3 for details.
Bit 0
spi3w_en[0]
Enables 3-wire SPI interface when set to ‘1’. See
chapter 5.3 for details.
4.3.6
Register 0xF7…0xF9 “press” (_msb, _lsb, _xlsb)
The “press” register contains the raw pressure measurement output data up[19:0]. For details on how
to read out the pressure and temperature information from the device, please consult chapter0.
Table 24: Register 0xF7 … 0xF9 “press”
Register 0xF7-
0xF9 “press”
Name
Description
0xF7
press_msb[7:0]
Contains the MSB part up[19:12] of the raw pressure
measurement output data.
0xF8
press_lsb[7:0]
Contains the LSB part up[11:4] of the raw pressure
measurement output data.
0xF9 (bit 7, 6, 5, 4)
press_xlsb[3:0]
Contains the XLSB part up[3:0] of the raw pressure
measurement output data. Contents depend on
temperature resolution, see table 5.
4.3.7
Register 0xFA…0xFC “temp” (_msb, _lsb, _xlsb)
The “temp” register contains the raw temperature measurement output data ut[19:0]. For details on
how to read out the pressure and temperature information from the device, please consult chapter 0.



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