LPS25H datasheet(32/45 Pages) STMICROELECTRONICS

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LPS25H

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DocID023722 Rev 5

7.13

PRESS_OUT_XL

Pressure data (LSB)

Address:

28h (R)

Description:

The PRESS_OUT_XL register contains the lowest part of the pressure output value,

that is the difference between the measured pressure and the reference pressure

(REF_P registers).See AUTOZERO bit in CTRL_REG2.The full reference pressure

value is composed by PRESS_OUT_H/_L/_XL and is represented as 2’s

complement. Pressure Values exceeding the operating pressure Range (see Table 3)

are clipped.

Pressure output data: Pout(hPa) = PRESS_OUT / 4096

Example: P_OUT = 0x3ED000 LSB = 4116480 LSB = 4116480/4096 hPa= 1005 hPa

Default value is 0x2F800 = 760 hPa

[7:6] Reserved

[5] P_OR: Pressure data overrun. Default value: 0

(0: no overrun has occurred;

1: new data for pressure has overwritten the previous one)

[4] T_OR: Temperature data overrun. Default value: 0

(0: no overrun has occurred;

1: a new data for temperature has overwritten the previous one)

[3:2] Reserved

[1] P_DA: Pressure data available. Default value: 0

(0: new data for pressure is not yet available;

1: new data for pressure is available)

[0] T_DA: Temperature data available. Default value: 0

(0: new data for temperature is not yet available;

1: new data for temperature is available)

432

POUT7

POUT6

POUT5

POUT4

POUT3

POUT2

POUT1

POUT0

[7:0] POUT7 - POUT0: Pressure data LSB

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