LPS225HB datasheet(34/47 Pages) STMICROELECTRONICS

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LPS225HB

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DocID030115 Rev 2

When ODR[2,0] are set to ‘000’ the device enables One-Shot mode. When the ONESHOT

bit is set to 1 in CTRL_REG2 (11h),a new conversion for pressure and temperature starts.

An ODR change will not flush FIFO content.

The BDU bit is used to inhibit the update of the output registers between the reading of upper

and lower register parts. In default mode (BDU = ‘0’), the lower and upper register parts are

updated continuously. When the BDU is activated (BDU = ‘1’), the content of the output

registers is not updated until both MSB and LSB are read which avoids reading values

related to different samples.

The SIM bit selects the SPI serial interface mode:



0: (default value) 4-wire SPI interface mode selected



1: 3-wire SPI interface mode selected

Table 16. Output data rate bit configurations

ODR2

ODR1

ODR0

Pressure (Hz)

Temperature (Hz)

Standby / One-shot enabled

001

1 Hz

10 Hz

011

25 Hz

100

50 Hz

75 Hz

Table 17. Low-pass filter configurations

LPF_CFG

Filter cutoff

ODR/9

ODR/20

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