LFSTBEB865X Freescale Semiconductor, LFSTBEB865X Datasheet - Page 50

• Manufacturer Part Number: LFSTBEB865X
• Description: Acceleration Sensor Development Tools EVB FOR MMA865xQ
• Manufacturer: Freescale Semiconductor

Specifications of LFSTBEB865X

• Rohs: yes
• Tool Is For Evaluation Of: MMA8652FC, MMA8653FC
• Acceleration: 2 g, 4 g, 8 g
• Sensing Axis: Triple Axis
• Interface Type: USB

50
Freefall
Note: To
configure a
value in the
Motion
Freefall
frame, both
the Default
Motion
Settings
and Default
Freefall
Settings
checkboxe
s must first
be cleared.
Motion
Screen
frame
Default Motion
Settings
Default Freefall
Settings
• OR
• AND
• Enable X-Axis
• Enable Y-Axis
• Enable Z-Axis
Enable Latch
Threshold
Debounce
Set
Reset
Decrement
Debounce
Clear Debounce
Motion or FF Event
Detected
frame group
Element or
Table 15. Full-System Evaluation – Motion/FF screen
Sets the parameters for detecting general motion to the factory default values.
Sets the parameters for detecting freefall to the factory default values.
Any event meeting this criteria is run through the configured OR or AND setting,
to determine if the event is displayed.
• OR — Directs the event on the selected axes to be run through a logical OR.
• AND — Directs the events on the selected axes to be run through a logical AND. This will
Note: In order to select OR or AND, both the Default Motion Settings and Default Freefall
Directs the device to monitor for an event along the specified axis or axes, at a g force with
an absolute value higher than that specified by the Threshold slider.
Causes any interrupt triggered by an event to remain until the Status register is read.
If the Enable Latch checkbox is not enabled, then the interrupt will last only as long as the
event does, and the Status register represents the most-recent event.
Sets the threshold for events to be detected. Events at a smaller g-force than this value are
filtered out.
Sets the amount of time that the configured conditions must be in place to trigger an
interrupt. Any event whose duration does not exceed this time will not trigger an interrupt.
Saves the new configuration settings after the repositioning of the Threshold and Debounce
sliders.
After changing either the Threshold or Debounce slider, click Set to register the new settings
with the device.
Resets the Threshold and Debounce sliders.
Before configuring the Threshold or Debounce sliders, click Reset to enable the new
configuration.
Causes the Debounce timer to be decremented, for each time that an event fails to reach
the debounce time.
Causes the timer set by the Debounce slider to reset to 0, for each time that an event fails
to reach the debounce time.
This indicator switches from red to green if an event is triggered.
• Before using the Threshold slider, click Reset.
• After using the Threshold slider, click Set to change the setting.
• Before using the Debounce slider, click Reset.
• After using the Debounce slider, click Set to change the setting.
MMA865xFC Sensor Toolbox User’s Guide, Rev. 0
Element
trigger an event only if all of the checked events occur.
Settings checkboxes must be cleared.
Description
Freescale Semiconductor, Inc.