Bosch BMP581 - Page 52

Bosch Sensortec"| BST-BMP581-DS004-02 52 | 74
Modifications reserved | Data subject to change
without notice Document number: BST-BMP581-DS004-02
7.4 Register (0x13) Configure host interface related settings (NVM-backed)
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
0
1
1
0
0
0
0
Content
pad_if_drv
reserved_3
reserved_2
spi3_en
i2c_csb...
i2c_csb_pup_en:(bit offset: 0) CSB pullup selection (valid in I2C mode only)
Values Description
0b0 (0x0) disabled
0b1 (0x1) enabled
spi3_en:(bit offset: 1) SPI 3-wire mode enabling
Values
Description
0b0 (0x0) SPI 4-wire mode
0b1 (0x1) SPI 3-wire mode
 reserved_2:(bit offset: 2) reserved
 reserved_3:(bit offset: 3) reserved
 pad_if_drv:(bit offset: 4) Pad drive strength for serial IO pins SDX, SDO (MSB should be set in I2C mode only)
Note: these register fields should be read-back only after waiting at least 1¬μs after they have been written.
7.5 Register (0x14) Interrupt configuration register
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
0
1
1
0
1
0
1
Content
pad_int_drv
int_en
int_od
int_pol
int_mode
 int_mode:(bit offset: 0) INT mode:
Values Description
0b0 (0x0) pulsed
0b1 (0x1) latched
 int_pol:(bit offset: 1) INT polarity:
Values Description
0b0 (0x0) active low
0b1 (0x1) active high