LPS22CH datasheet(20/55 Pages) STMICROELECTRONICS

Part #	LPS22CH

Description	High-performance MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer

PDF	55 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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20 / 55 page

FIFO

LPS22CH

20/55

DocID033100 Rev 2

5.3

Continuous (Dynamic-Stream) mode

In Continuous (Dynamic-Stream) mode (FIFO_CTRL (13h)(TRIG_MODES and

F_MODE[1:0] = ‘011’) after emptying the FIFO, the first new sample that arrives becomes

the first to be read in a subsequent read burst. In this way, the number of new data available

in FIFO does not depend on the previous read.

In Continuous (Dynamic-Stream) mode FIFO_STATUS1 (25h)(FSS[7:0]) is the number of

new pressure and temperature samples available in the FIFO buffer.

Continuous (Dynamic-Stream) is intended to be used to read FIFO_STATUS1

(25h)(FSS[7:0]) samples when it is not possible to guarantee reading data within 1/ODR

time period.

Also, a FIFO threshold interrupt on the INT_DRDY pad through CTRL_REG3

(12h)(INT_F_WTM) can be enabled in order to read data from the FIFO and leave free

memory slots for incoming data.

Figure 10. Continuous (Dynamic-Stream) mode

LPS22CH Datasheet(PDF) 20 Page - STMicroelectronics