Data Sheet

Final Datasheet
BME280 Environmental sensor
Page 29
BST-BME280-DS001-10 | Revision 1.1 | May 2015 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
Table 29: Register 0xF “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.
5.4.8 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 4.
Table 30: Register 0xF “temp”
Register 0xFA…0xFC
“temp”
Name
Description
0xFA
temp_msb[7:0]
Contains the MSB part ut[19:12] of the raw temperature
measurement output data.
0xFB
temp_lsb[7:0]
Contains the LSB part ut[11:4] of the raw temperature
measurement output data.
0xFC (bit 7, 6, 5, 4)
temp_xlsb[3:0]
Contains the XLSB part ut[3:0] of the raw temperature
measurement output data. Contents depend on pressure
resolution.
5.4.9 Register 0xFD…0xFE “hum” (_msb, _lsb)
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 4.
Table 31: Register 0xFD E “hum”
Register 0xFD…0xFE
“hum”
Name
Description
0xFD
hum_msb[7:0]
Contains the MSB part uh[15:8] of the raw humidity
measurement output data.
0xFE
temp_lsb[7:0]
Contains the LSB part uh[7:0] of the raw humidity
measurement output data.