Datasheet

Bosch Sensortec | BME680 Datasheet
33 | 50
Modifications reserved |Data subject not change without notice | Printed in Germany
Document number: BST-BME680-DS001-00 Revision_1.0_072017
5.3.5 Status registers
5.3.5.1 New data status
The measured data are stored into the output data registers at the end of each TPHG conversion phase along with status
flags and index of measurement.
Register Name
Address
Content<bit position>
Description
meas_status_0
0x1D
new_data_0<7>
New data flag
5.3.5.2 Gas measuring status
Measuring bit is set to “1‟ only during gas measurements, goes to “0‟ as soon as measurement is completed and data
transferred to data registers. The registers storing the configuration values for the measurement (gas_wait_shared,
gas_wait_x, res_heat_x, idac_heat_x, image registers) should not be changed when the device is measuring.
Register Name
Address
Content<bit position>
Description
meas_status_0
0x1D
gas_measuring<6>
Gas measuring status flag
5.3.5.3 Measuring status
Measuring status will be set to ‘1’ whenever a conversion (temperature, pressure, humidity and gas) is running and back to
‘0’ when the results have been transferred to the data registers.
Register Name
Address
Content<bit position>
Description
meas_status_0
0x1D
measuring<5>
Measuring status flag
5.3.5.4 Gas Measurement Index
User can program a sequence of up to 10 conversions by setting nb_conv<3:0>. Each conversion has its own heater
resistance target but 3 field registers to store conversion results. The actual gas conversion number in the measurement
sequence (up to 10 conversions numbered from 0 to 9) is stored in gas_meas_index register.
Register Name
Address
Content<bit position>
Description
meas_status_0
0x1D
gas_meas_index_0<3:0>
Gas measurement index