FXLS8964AF datasheet(69/98 Pages) NXP

69 / 98 page

NXP Semiconductors

FXLS8964AF

3-Axis Low-g Accelerometer

FXLS8964AF

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Objective data sheet

Rev. 2 — 30 October 2020

69 / 98

Field

Description

2:1

LAPO[1:0]

Landscape/Portrait orientation

00: Portrait up: The device is oriented vertically in the upward direction.

01: Portrait down: The device is oriented vertically in the downward direction.

10: Landscape right: The device is oriented horizontally to the right.

11: Landscape left: The device is oriented horizontally to the left.

Note: The LAPO[1:0] field continues to update with orientation changes even after the NEW_

ORIENT flag is set.

BAFRO

Back or front orientation

0: Front: The device is in the front-facing orientation.

1: Back: The device is in the back-facing orientation.

Note: The BAFRO bit continues to update with orientation changes even after the NEW_ORIENT flag

is set.

Note:

• The BAFRO and LAPO fields are reset to 0 after a POR or soft reset event. These

bits are also automatically cleared after a transition from STANDBY to ACTIVE or

STANDBY to EXT_TRIG modes.

• The current orientation is locked if the absolute value of the acceleration experienced

on any of the three axes is greater than 1.25 g.

13.27 ORIENT_CONFIG register (address 29h)

This register is used to enable the orientation detection function and set the behavior of

the orientation transition debounce counter.

Table 83. ORIENT_CONFIG register (address 29h) bit allocation

Bit

Name

ORIENT_

DBCNTM

ORIENT_

ENABLE

—

Reset

Access

R/W

Table 84. ORIENT_CONFIG register (address 29h) bit description

Field

Description

ORIENT_DBCNTM

Orientation debounce counter mode selection

0: Orientation debounce counter is decremented whenever the current orientation is different than the

previous one.

1: Orientation debounce counter is cleared whenever the current orientation is different than the

previous one.

ORIENT_ENABLE

Orientation detection function enable

0 (default): Orientation detection function is disabled.

1: Orientation detection function is enabled.

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