Bosch BMP581 - Page 63

Bosch Sensortec"| BST-BMP581-DS004-02 63 | 74
Modifications reserved | Data subject to change
without notice Document number: BST-BMP581-DS004-02
7.33 Register (0x36) Over-sampling rate (OSR) configuration
Bit
7
6
5
4
3
2
1
0
Read/Write
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
0
0
0
0
0
0
0
0
Content
reserved_7
press_en
osr_p
osr_t
 osr_t:(bit offset: 0) OSR_T selection
Value
Description
0b000 (0x0)
oversampling rate = 1x
0b001 (0x1)
oversampling rate = 2x
0b010 (0x2)
oversampling rate = 4x
0b011 (0x3)
oversampling rate = 8x
0b100 (0x4)
oversampling rate = 16x
0b101 (0x5)
oversampling rate = 32x
0b110 (0x6)
oversampling rate = 64x
0b111 (0x7)
oversampling rate = 128x
 osr_p:(bit offset: 3) OSR_P selection
Value
Description
0b000 (0x0)
oversampling rate = 1x
0b001 (0x1)
oversampling rate = 2x
0b010 (0x2)
oversampling rate = 4x
0b011 (0x3)
oversampling rate = 8x
0b100 (0x4)
oversampling rate = 16x
0b101 (0x5)
oversampling rate = 32x
0b110 (0x6)
oversampling rate = 64x
0b111 (0x7)
oversampling rate = 128x
 press_en:(bit offset: 6) If set, enables sensor pressure measurements. Otherwise temperature only measurements
is done.
 reserved_7:(bit offset: 7) reserved
 Note: the configured ODR might be invalid in combination with OSR configuration. This is observable with the
ODR_-CONFIG.flag odr_is_valid. If configured ODR/OSR settings are invalid, default OSR settings will be used.
The effective OSR settings for P/T can be read from osr_t_eff and osr_p_eff
7.34 Register (0x37) Output data rate (ODR) configuration
Bit
7
6
5
4
3
2
1
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
0
1
1
1
0
0
0
0
Content
deep_dis
odr
pwr_mode
 pwr_mode:(bit offset: 0) Power mode configuration The user can request a dedicated power mode by writing this
field. A read returns the actual mode the device is in.
 Note: This bit is cleared again upon transition from FORCED to STANDBY mode.