LPS331AP Datasheet, PDF (24/36 Pages) STMicroelectronics – MEMS pressure sensor: 260-1260 mbar absolute digital output barometer

Register description
Figure 10. Interrupt generation block and output pressure data.
LPS331AP
Sensor output pressure
+
-
Reference Pressure
REF_P_H & REF_P_L & REF_P_XL
Pressure Threshold
THS_P_H & THS_P_L
High press int
Press Threshold
Reference Press
Low press int
Press Threshold
Positive
Negative
INTERRUPT_CFG
7
6
5
4
3
RESERVED
Address:
Type:
Reset:
Description:
23h
R/W
00h
Interrupt configuration.
PRESS_OUT_H & PRESS_OUT_L & PRESS_OUT_XL
+
-
+
-1
-
Low Press Interrupt
PL
High Press Interrupt
PH
AM08738V1
Interrupt configuration
2
1
0
LIR
PL_E
PH_E
[7:3] RESERVED
[2] LIR: Latch Interrupt request into INT_SOURCE register. Default value: 0.
(0: interrupt request not latched; 1: interrupt request latched)
[1] PL_E: Enable interrupt generation on differential pressure low event. Default value: 0.
(0: disable interrupt request;
1: enable interrupt request on measured differential pressure value lower than preset threshold)
[0] PH_E: Enable interrupt generation on differential pressure high event. Default value: 0
(0: disable interrupt request;
1:enable interrupt request on measured differential pressure value higher than preset
threshold)
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Doc ID 022112 Rev 7