MC3430 Datasheet, PDF (38/79 Pages) List of Unclassifed Manufacturers – Axis Accelerometer

MC3430 3-Axis Accelerometer
Sensed Value
TAP_TH
Register
0 snap
Preliminary Datasheet
Sample
Sensed Value
Compared Value
Tap detected here
Time
Tap Pulse Register == 5 and the sensed value is above the
threshold for 3 samples. Tap is detected.
Figure 17. Example Use of Tap Detection Hardware – Tap Detected
The threshold value, set by writing the TAP_TH: Tap Threshold Register, is an 8-bit unsigned
number that species the threshold detection level for all tap events. This value is not an offset,
but a magnitude which determines the minimum level for a valid tap event.
Event
X Axis
Tap
|X| > TAP_TH
Table 25. Default Tap Event Evaluation
Y Axis
|Y| > TAP_TH
Z Axis
|Z| > TAP_TH
mCube Proprietary.
APS-048-0011v1.5
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