Data Sheet

DocID027112 Rev 4 17/50
LPS25HB FIFO
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4.2 FIFO mode
In FIFO mode (F_MODE[2:0] in FIFO_CTRL (2Eh) set to '001'), the data from
PRESS_OUT_H (2Ah), PRESS_OUT_L (29h), and PRESS_OUT_XL (28h) are stored in
the FIFO.
A watermark interrupt can be enabled (STOP_ON_FTH bit set to '1' in CTRL_REG2 (21h))
in order to be raised when the FIFO is filled to the level specified by the WTM_POINT[4:0]
bits of FIFO_CTRL (2Eh). The FIFO continues filling until it is full (32 slots of data for
pressure output). When full, the FIFO stops collecting data.
The FIFO buffer can store up to 32 levels of data. The FIFO depth can be limited by setting
the STOP_ON_FTH bit 5 in CTRL_REG2 (21h) to ‘1’ and by selecting a watermark level
with the WTM_POINT[4:0] bits in FIFO_CTRL (2Eh).
Figure 7. FIFO mode
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