Data Sheet

DocID025715 Rev 2 57/72

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

00000000FIFO 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’.

00000011 unread sample

...

(1)

010000032 unread samples

11100000At 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