LPS25H Datasheet, PDF (25/45 Pages) STMicroelectronics – Embedded temperature compensation

LPS25H
Register description
7.6
CTRL_REG1
7
6
5
PD
ODR2
ODR1
4
ODR0
3
DIFF_EN
Control register 1
2
1
0
BDU
RESET_AZ
SIM
Address:
20h (R/W)
Reset:
00h
Description:
Control register.
[7] PD: power down control.
Default value: 0
(0: power-down mode; 1: active mode)
[6:4] ODR2, ODR1, ODR0: output data rate selection.
Default value: 00
(see Table 18)
[3] DIFF_EN: Interrupt circuit enable.
Default value: 0
(0: interrupt generation disabled; 1: interrupt circuit enabled)
[2] BDU: block data update.
Default value: 0
(0: continuous update; 1: output registers not updated until MSB and LSB reading)
[1] RESET_AZ: Reset AutoZero function. Reset REF_P reg, set pressure to default value in RPDS
register (@0x39/A)
(1: Reset. 0: disable)
[0] SIM: SPI Serial Interface Mode selection.
Default value: 0
(0: 4-wire interface; 1: 3-wire interface)
PD bit allows to turn on the device. The device is in power-down mode when PD = ‘0’
(default value after boot). The device is active when PD is set to ‘1’.
ODR2- ODR1 - ODR0 bits allow to change the output data rates of pressure and
temperature samples. The default value is “000” which corresponds to “one shot
configuration” for both pressure and temperature output. ODR2, ODR1 and ODR0 bits can
be configured as described in Table 18.
ODR2
0
0
0
0
1
1
Table 18. Output data rate bit configurations
ODR1
ODR0
Pressure (Hz)
Temperature (Hz)
0
0
0
1
1
0
1
1
1 Hz
7 Hz
12.5 Hz
One shot
1 Hz
7 Hz
12.5 Hz
0
0
0
1
25 Hz
Reserved
25 Hz
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