LPS22DF datasheet(15/54 Pages) STMICROELECTRONICS

部件名	LPS22DF

功能描述	Low-power and high-precision MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer

PDF	54 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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15 / 54 page

5.3

Continuous (Dynamic-Stream) mode

In Continuous (Dynamic-Stream) mode (FIFO_CTRL (14h)(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 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 pin 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

LPS22DF

Continuous (Dynamic-Stream) mode

DS13316 - Rev 1

page 15/54

LPS22DF 数据表(PDF) 15 Page - STMicroelectronics