LPS27HHW datasheet(52/60 Pages) STMICROELECTRONICS

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LPS27HHW

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DocID032730 Rev 1

9.16

FIFO_STATUS1 (25h)

FIFO status register (read only)

9.17

FIFO_STATUS2 (26h)

FIFO status register (read only)

9.18

STATUS (27h)

Status register (read only)

This register is updated every ODR cycle.

76543210

FSS7

FSS6

FSS5

FSS4

FSS3

FSS2

FSS1

FSS0

FSS[7:0]

FIFO stored data level, number of unread samples stored in FIFO.

(00000000: FIFO empty; 10000000: FIFO full, 128 unread samples)

3210

FIFO_WTM_IA FIFO_OVR_IA FIFO_FULL_IA

----

FIFO_WTM_IA

FIFO threshold (watermark) status. Default value: 0

(0: FIFO filling is lower than treshold level;

1: FIFO filling is equal or higher than treshold level).

FIFO_OVR_IA

FIFO overrun status. Default value: 0

(0: FIFO is not completely full;

1: FIFO is full and at least one sample in the FIFO has been overwritten).

FIFO_FULL_IA

FIFO full status. Default value: 0

(0: FIFO is not completely filled;

1: FIFO is completely filled, no samples overwritten)

76543210

T_OR

P_OR

T_DA

P_DA

T_OR

Temperature data overrun.

(0: no overrun has occurred;

1: a new data for temperature has overwritten the previous data)

P_OR

Pressure data overrun.

(0: no overrun has occurred;

1: new data for pressure has overwritten the previous data)

T_DA

Temperature data available.

(0: new data for temperature is not yet available;

1: a new temperature data is generated)

P_DA

Pressure data available.

(0: new data for pressure is not yet available;

1: a new pressure data is generated)

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