Datasheet
Bosch Sensortec | BME680 Datasheet
32 | 50
Modifications reserved |Data subject not change without notice | Printed in Germany
Document number: BST-BME680-DS001-00 Revision_1.0_072017
5.3.4 Data registers
In this section, the data registers for the temperature, pressure, humidity and gas sensors are explained. Shadowing
registers are utilized to buffer the data and to ensure stable data in case an update of the data registers occurs
simultaneously with the serial interface reading out.
5.3.4.1 Pressure data
Register Name
Address
Content<bit position>
Description
press_msb
0x1F
press_msb<7:0>
Contains the MSB part [19:12] of the raw
pressure measurement output data.
press_lsb
0x20
press_lsb<7:0>
Contains the LSB part [11:4] of the raw pressure
measurement output data
press_xlsb
0x21
press_xlsb<7:4>
Contains the XLSB part [3:0] of the raw pressure
measurement output data. Contents depend on
pressure resolution controlled by oversampling
setting.
5.3.4.2 Temp data
Register Name
Address
Content<bit position>
Description
temp_msb
0x22
temp_msb<7:0>
Contains the MSB part [19:12] of the raw
temperature measurement output data.
temp_lsb
0x23
temp_lsb<7:0>
Contains the LSB part [11:4] of the raw
temperature measurement output data.
temp_xlsb
0x24
temp_xlsb<7:4>
Contains the XLSB part [3:0] of the raw
temperature measurement output data. Contents
depend on temperature resolution controlled by
oversampling setting.
5.3.4.3 Humidity data
Register Name
Address
Content<bit position>
Description
hum_msb
0x25
hum_msb<7:0>
Contains the MSB part [15:8] of the raw humidity
measurement output data.
hum_lsb
0x26
hum_lsb<7:0>
Contains the LSB part [7:0] of the raw humidity
measurement output data.
5.3.4.4 Gas resistance data
Register Name
Address
Content<bit position>
Description
gas_r_msb
0x2A
gas_r<7:0>
Contains the MSB part gas resistance [9:2] of the
raw gas resistance.
gas_r_lsb
0x2B
gas_r<7:6>
Contains the LSB part gas resistance [1:0] of the
raw gas resistance.
5.3.4.5 Gas resistance range
Register Name
Address
Content<bit position>
Description
gas_r_lsb
0x2B
gas_range_r<3:0>
Contains ADC range of measured gas resistance.