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BMP280 Datasheet(PDF) 25 Page - Bosch Sensortec GmbH |
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BMP280 Datasheet(HTML) 25 Page - Bosch Sensortec GmbH |
25 / 49 page ![]() Datasheet BMP280 Digital Pressure Sensor Page 25 BST-BMP280-DS001-19 | Revision 1.19 | January 2018 Bosch Sensortec © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. Note: Specifications within this document are subject to change without notice. Not intended for publication. 4.3.3 Register 0xF3 “status” The “status” register contains two bits which indicate the status of the device. Table 19: Register 0xF3 “status” Register 0xF3 “status” Name Description Bit 3 measuring[0] Automatically set to ‘1’ whenever a conversion is running and back to ‘0’ when the results have been transferred to the data registers. Bit 0 im_update[0] Automatically set to ‘1’ when the NVM data are being copied to image registers and back to ‘0’ when the copying is done. The data are copied at power-on-reset and before every conversion. 4.3.4 Register 0xF4 “ctrl_meas” The “ctrl_meas” register sets the data acquisition options of the device. Table 20: Register 0xF4 “ctrl_meas” Register 0xF4 “ctrl_meas” Name Description Bit 7, 6, 5 osrs_t[2:0] Controls oversampling of temperature data. See chapter 3.3.2 for details. Bit 4, 3, 2 osrs_p[2:0] Controls oversampling of pressure data. See chapter 3.3.1 for details. Bit 1, 0 mode[1:0] Controls the power mode of the device. See chapter 3.6 for details. Table 21: register settings osrs_p osrs_p[2:0] Pressure oversampling 000 Skipped (output set to 0x80000) 001 oversampling ×1 010 oversampling ×2 011 oversampling ×4 100 oversampling ×8 101, Others oversampling ×16 |
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