LSM9DS1 datasheet(57/72 Pages) STMICROELECTRONICS

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LSM9DS1

Accelerometer and gyroscope register description

7.35

FIFO_SRC (2Fh)

FIFO status control register.

Table 85. FIFO_SRC register

Table 86. FIFO_SRC register description

7.36

INT_GEN_CFG_G (30h)

Angular rate sensor interrupt generator configuration register.

FTH

OVRN

FSS5

FSS4

FSS3

FSS2

FSS1

FSS0

FTH

FIFO threshold status.

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

threshold level

OVRN

FIFO overrun status.

(0: FIFO is not completely filled; 1: FIFO is completely filled and at least one samples

has been overwritten)

For further details refer to Table 87.

FSS [5:0]

Number of unread samples stored into FIFO.

(000000: FIFO empty; 100000: FIFO full, 32 unread samples)

For further details refer to Table 87.

Table 87. FIFO_SRC example: OVR/FSS details

FTH

OVRN

FSS5

FSS4

FSS3

FSS2

FSS1

FSS0

Description

FIFO empty

--(1)

1. When the number of unread samples in FIFO is greater than the threshold level set in register FIFO_CTRL

(2Eh), FTH value is ‘1’.

001

1 unread sample

...

--(1)

32 unread samples

At least one sample has

been overwritten

Table 88. INT_GEN_CFG_G register

AOI_G

LIR_G

ZHIE_G

ZLIE_G

YHIE_G

YLIE_G

XHIE_G

XLIE_G

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