LPS25H datasheet(34/45 Pages) STMICROELECTRONICS

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LPS25H

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DocID023722 Rev 5

7.17

TEMP_OUT_H

Temperature data (MSB)

Address:

2Ch (R)

Description:

The TEMP_OUT_H register contains the high part of the temperature output

value.(See description TEMP_OUT_L).

7.18

FIFO_CTRL

FIFO control

Address:

2Eh (R/W)

Reset:

00h

Description:

The FIFO_CTRL registers allows to control the FIFO functionality.

FIFO_MEAN_MODE: The FIFO can be used for implementing a HW moving average on the

pressure measurements. The number of samples of the moving average can be 2, 4, 8, 16

or 32 samples, by selecting the watermark levels as per Table 21. Different configuration are

not guaranteed

TOUT14

TOUT13

TOUT12

TOUT11

TOUT10

TOUT9

TOUT8

[15:8] TOUT15 - TOUT8: Pressure data

7654

321

F_MODE2

F_MODE1

WTM_POIN

[7:5] F_MODE2-0: FIFO mode selection.See Table 22.

[4:0] WTM_POINT4-0 : FIFO threshold.Watermark level setting. See Table 23.

Table 20. FIFO mode selection

F_MODE2

F_MODE1

F_MODE0

FIFO mode

BYPASS MODE

FIFO MODE. Stops collecting data when full

STREAM MODE: Keep the newest measurements in the FIFO

STREAM MODE until trigger deasserted, then change to FIFO MODE

BYPASS MODE until trigger deasserted, then change to STREAM MODE

Reserved for future use

FIFO_MEAN MODE: FIFO is used to generate a running average filtered

pressure

BYPASS mode until trigger deasserted, then change to FIFO MODE

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