LPS225HB datasheet(37/47 Pages) STMICROELECTRONICS

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LPS225HB

8.7

CTRL_REG3 (12h)

Interrupt control

Address:

12h (R/W)

Reset:

00h

Description:

Control register.

[7] INT_H_L: Interrupt active high, low. Default value: 0

(0: active high; 1: active low)

[6] PP_OD: Push-pull/open-drain selection on interrupt pads. Default value: 0

(0: push-pull; 1: open drain)

[5] F_FSS5: FIFO full flag on INT_DRDY pin;

(0: FIFO empty; 1: FIFO full (32 unread samples)).

[4] F_FTH: FIFO threshold (watermark) status on INT_DRDY pin;

(0: FIFO filling is lower than FTH level; 1: FIFO filling is equal or higher than FTH

level)

[3] F_OVR: FIFO overrun bit status; OVRN=‘1’ means that at least one sample in the

FIFO has been overwritten

[2] DRDY: Data-ready signal on INT_DRDY pin

[1:0] INT_S2, INT_S1: data signal on INT_DRDY pin control bits. Default value: 00

(see Table 19)

INT_H_L

PP_OD

F_FSS5

F_FTH

F_OVR

DRDY

INT_S2

INT_S1

Table 19. Interrupt configurations

INT_S2

INT_S1

INT_DRDY pin

Data signal (in order of priority: DRDY or F_FTH or

F_OVR or F_FSS5)

Pressure high (P_high)

Pressure low (P_low)

Pressure low OR high

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