MC3413 Datasheet, PDF (18/47 Pages) List of Unclassifed Manufacturers – Axis Accelerometer

MC3413 3-Axis Accelerometer
Preliminary Datasheet
5 GENERAL OPERATION
The device supports the reading of samples and device status upon interrupt or via polling.
5.1 SENSOR SAMPLING
Measurement data is stored in the “extended” registers XOUT_EX, YOUT_EX, and ZOUT_EX.
The byte with the lower address of the byte pair is the least significant byte while the byte with
the next higher address is the most significant byte. The measurement data is represented as
2’s complement format.
The desired resolution and full scale acceleration range are set in OUTCFG Output
Configuration Register.
5.2 OFFSET AND GAIN CALIBRATION
Digital offset and gain calibration can be performed on the sensor, if necessary, in order to
reduce the effects of post-assembly influences and stresses which may cause the sensor
readings to be offset from their factory values.
5.3 TAP DETECTION
The device supports directional tap detection in ±X, ±Y or ±Z. Each axis is independent,
although only one direction per axis is supported simultaneously. The threshold, duration, and
dead-time of tap detection can be set for each axis, and six flag/status bits are maintained in a
status register. The tap hardware uses a second order high-pass filter to detect fast
impulse/transition acceleration events. The external interrupt pin can be used to indicate that a
tap event has been detected.
mCube Proprietary.
APS-048-0029v1.7
© 2014 mCube Inc. All rights reserved.
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