LPS35HW Datasheet, PDF (40/48 Pages) STMicroelectronics – Embedded temperature compensation

Register description
LPS35HW
FTH OVRN FSS5 FSS4 FSS3 FSS2 FSS1 FSS0
Description
1
1
1
0
0
0
0
0
At least one sample have been
overwritten
Notes:
(1)_{When the number of unread samples in FIFO is greater than the threshold level set in register Section 10.8:}
"FIFO_CTRL (14h)", FTH value is ‘1’.
8.17
8.18
STATUS_27h
Status register
7
6
--
--
5
T_OR
Table 34: STATUS (27h) register
4
3
2
P_OR
--
--
1
T_DA
0
P_DA
T_OR
P_OR
T_DA
P_DA
Temperature data overrun.
(0: no overrun has occurred;
1: a new data for temperature has overwritten the previous one)
Pressure data overrun.
(0: no overrun has occurred;
1: new data for pressure has overwritten the previous one)
Temperature data available.
(0: new data for temperature is not yet available;
1: new data for temperature is available)
Pressure data available.
(0: new data for pressure is not yet available;
1: new data for pressure is available)
This register is updated every ODR cycle.
PRESS_OUT_XL_28h
Pressure output value (LSB)
Table 35: PRESS_OUT_XL (28h) register
7
6
5
4
3
2
POUT7 POUT6 POUT5 POUT4 POUT3 POUT2
1
POUT1
0
POUT0
40/48
POUT[7:0]
This register contains the low part of the pressure output value.
The pressure output value is a 24-bit data that contains the measured pressure. It is
composed of Section 10.20: "PRESS_OUT_H_2Ah", Section 10.19: "PRESS_OUT_L_29h"
and Section 10.18: "PRESS_OUT_XL_28h" . The value is expressed as 2’s complement.
The output pressure register PRESS_OUT is provided as the difference between the
measured pressure and the content of the register RPDS (18h, 19h)*.
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