bmp280 datasheet

Bosch
Sensortec | BMP280 Data sheet
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Modifications reserved | Data subject to change without notice
Document number: BST-BMP280-DS001-23 Revision_1.23_11202
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4. Global memory map and register description ............................................................................. 24
4.1 General remarks ...................................................................................................................... 24
4.2 Memory map ............................................................................................................................ 24
4.3 Register description ................................................................................................................. 24
4.3.1 Register 0xD0 “id” ................................................................................................... 24
4.3.2 Register 0xE0 “reset” .............................................................................................. 24
4.3.3 Register 0xF3 “status” ............................................................................................ 25
4.3.4 Register 0xF4 “ctrl_meas” ...................................................................................... 25
4.3.5 Register 0xF5 “config” ............................................................................................ 26
4.3.6 Register 0xF7…0xF9 “press” (_msb, _lsb, _xlsb) .................................................. 26
4.3.7 Register 0xFA…0xFC “temp” (_msb, _lsb, _xlsb) .................................................. 27
5. Digital interfaces ............................................................................................................................ 27
5.1 Interface selection ................................................................................................................... 27
5.2 I²C Interface ............................................................................................................................. 27
5.2.1 I²C write................................................................................................................... 28
5.2.2 I²C read ................................................................................................................... 29
5.3 SPI interface ............................................................................................................................ 29
5.3.1 SPI write.................................................................................................................. 30
5.3.2 SPI read .................................................................................................................. 30
5.4 Interface parameter specification ............................................................................................ 31
5.4.1 General interface parameters ................................................................................. 31
5.4.2 I²C timings ............................................................................................................... 31
5.4.3 SPI timings .............................................................................................................. 32
6. Pin-out and connection diagram .................................................................................................. 34
6.1 Pin-out ..................................................................................................................................... 34
6.2 Connection diagram 4-wire SPI ............................................................................................... 35
6.3 Connection diagram 3-wire SPI ............................................................................................... 36
6.4 Connection diagram I
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C........................................................................................................... 37
7. Package, reel and environment .................................................................................................... 38