LPS25H datasheet(31/45 Pages) STMICROELECTRONICS

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LPS25H

7.11

INT_SOURCE

Interrupt source

Address:

25h (R)

Reset:

00h

Description:

INT_SOURCE register is cleared by reading it

7.12

STATUS_REG

Status register

Address:

27h (R)

Reset:

00h

Description:

This register is updated every ODR cycle, regardless of BDU value in CTRL_REG1.

P_DA is set to 1 whenever a new pressure sample is available. P_DA is cleared

when PRESS_OUT_H (2Ah) register is read.

T_DA is set to 1 whenever a new temperature sample is available. T_DA is cleared

when TEMP_OUT_H (2Ch) register is read.

P_OR bit is set to '1' whenever new pressure data is available and P_DA was set in

the previous ODR cycle and not cleared. P_OR is cleared when PRESS_OUT_H

(2Ah) register is read.

T_OR is set to ‘1’ whenever new temperature data is available and T_DA was set in

the previous ODR cycle and not cleared. T_OR is cleared when TEMP_OUT_H (2Ch)

543

210

000

[7:3] Reserved: keep these bits at 0

[2] IA: Interrupt Active.

(0: no interrupt has been generated; 1: one or more interrupt events have been generated).

[1] PL: Differential pressure Low.

(0: no interrupt has been generated; 1: Low differential pressure event has occurred).

[0] PH: Differential pressure High.

(0: no interrupt has been generated; 1: High differential pressure event has occurred).

543

210

RES

P_OR

T_OR

RES

P_DA

T_DA

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