AIS2IH datasheet(42/63 Pages) STMICROELECTRONICS

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8.16

OUT_Z_L (2Ch)

Z-axis LSB output register (r)

Table 50. OUT_Z_L register

Z_L7

Z_L6

Z_L5

Z_L4

Z_L3(1)

Z_L2(1)

1. If Low-power Mode 1 is enabled, this bit is set to 0.

The 8 least significant bits of linear acceleration sensor Z-axis output. Together with the OUT_Z_H (2Dh) register,

it forms the output value expressed as a 16-bit word in 2's complement.

8.17

OUT_Z_H (2Dh)

Z-axis MSB output register (r)

Table 51. OUT_Z_H register

Z_H7

Z_H6

Z_H5

Z_H4

Z_H3

Z_H2

Z_H1

Z_H0

The 8 most significant bits of linear acceleration sensor Z-axis output. Together with the OUT_Z_L (2Ch) register,

it forms the output value expressed as a 16-bit word in 2's complement.

8.18

FIFO_CTRL (2Eh)

FIFO control register (r/w)

Table 52. FIFO_CTRL register

FMode2

FMode1

FMode0

FTH4

FTH3

FTH2

FTH1

FTH0

Table 53. FIFO_CTRL register description

FMode[2:0]

FIFO mode selection bits. Default: 000. For further details refer to Table 54

FTH[4:0]

FIFO threshold level setting.

Table 54. FIFO mode selection

FMode[2:0]

Mode description

000

Bypass mode: FIFO turned off

001

FIFO mode: Stops collecting data when FIFO is full.

010

Reserved

011

Continuous-to-FIFO: Stream mode until trigger is deasserted, then FIFO mode

100

Bypass-to-Continuous: Bypass mode until trigger is deasserted, then FIFO mode

101

Reserved

110

Continuous mode: If the FIFO is full, the new sample overwrites the older sample.

111

Reserved

AIS2IH

OUT_Z_L (2Ch)

DS12421 - Rev 4

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