LFSTBEB865X Freescale Semiconductor, LFSTBEB865X Datasheet - Page 45

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LFSTBEB865X

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

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
Freescale Semiconductor, Inc.
System Interrupt
Screen Frame
Over-Sampling
Sleep Mode
Settings
Options
• Normal Mode
• Hi Res Mode
• Low Power Mode
• Low Noise Low
Auto Sleep Settings
Wake from Sleep
Interrupt
• Before changing
• After the settings
Power
Table 13. Full-System Evaluation – Main screen (Continued)
any setting in the
Auto Sleep
Settings screen
group, click Reset.
are changed, click
Set.
screen group
Element or
MMA865xFC Sensor Toolbox User’s Guide, Rev. 0
Selects the over-sampling options to be used when the device is in Sleep
Mode:
• Normal — Implements normal operation.
• Hi Res — Collects more accurate readings, but draws more current.
• Low Power — Draws less current than Normal mode does, but at the
• Low Noise Low Power — Draws more current than Normal mode does, but
Enable Auto
Sleep
Sleep Sample
Rate
Sleep Timer
Slider
Reset
Set
• FIFO Gate
• Transient
• Orientation
• Pulse
• Motion/FF
This device has 7 interrupt sources: FIFO, Data Ready, Transient, Pulse,
Motion FF, Orientation, Auto Sleep.
expense of accuracy.
less current than Low Power mode does, and reduces noise.
description
Element or
Enables the Auto-Sleep function of the device, which puts
the device in Sleep mode when no actions are taken for the
duration of the sleep timer.
Sets the sample rate for the device when it is in Sleep
mode. Lower sample rates will use less power while the
device is sleeping.
Determines how long a period of inactivity must pass
before the device enters Sleep mode.
Before changing any setting in the Auto Sleep Settings
screen group, click Reset to enable using a new
configuration.
After changing any settings in the Auto Sleep Settings
screen group, click Set to ensure that all of the settings are
registered with the device.
Specifies what type of event wakes the device from Sleep
Mode.
For example, if the Pulse box is checked, then tapping the
device will wake it from sleep.
Note:
An application cannot wake the device from sleep (even if
selected in this box) unless:
• the application is configured in its own screen (in the
• and the application’s interrupt is enabled in the
case of a Pulse, the Pulse Detection screen),
Interrupts section of the Main Screen.
Description
45

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