LFSTBEB865X Freescale Semiconductor, LFSTBEB865X Datasheet - Page 12

• 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

12
Operation
Transient
Dynamic
Standby
Settings
Screen
Range
frame
Active
Mode
Sample Rate
Over-Sampling
Options for Data
Auto Calibrate
• 2g
• 4g
• 8g
Standby
Active
• Standby Mode
• Wake Mode
• Sleep Mode
Default Transient
Settings
Bypass HPF
(High-Pass Filter)
• Enable X Flag
• Enable Y Flag
• Enable Z Flag
Enable Latch
Field or option
Table 1. Directional Flick – Active/Standby screens
Enables you to change the rate at which the device acquires data.
Normal Mode
Hi Res Mode
Low Power Mode
Low Noise Low Power
Directs the device to calculate the offsets for each axis (account for any error in
measurements). For maximum resolution, the calibration is done with a dynamic range of 8g
and a sample rate of 1.563 Hz.
Note: Before enabling this mode, place the device on a flat and stationary surface.
Sets the range over which the accelerometer is acquiring data.
Sets the device to Standby mode.
Sets the device to Active mode.
Indicates the device’s status (Read only).
Note: The device will never enter Sleep mode during this demo.
Sets the parameters for detecting flicks to their working values, as defined at the factory.
Directs the application to use the raw accelerometer data before it has been passed through
the HPF.
Note: The Bypass HPF setting should normally be disabled.
Allows flicks along these axes to trigger the “Event Detected” Indicator on the Demo Screen.
Note: Only the Y axis will move the pictures and correctly trigger the direction indicator.
Causes any triggered event to remain until the Status register is read. If this checkbox is not
enabled, the interrupt will only last as long as the event and the Status register will represent
the most-recent event.
This setting should be enabled for the flick detection to work properly. If it is disabled, the
events that are moving the pictures will constantly occur as you move the device and the
pictures will simply flick from end to end.
MMA865xFC Sensor Toolbox User’s Guide, Rev. 0
If enabled, the X and Z axes will only trigger the Event Detected indicator on the Demo
screen.
Normal operation.
The device gives more accurate readings, but draws more current.
The device draws less current than Normal mode, but at the
expense of accuracy.
The device draws more current Normal mode, but less than Low
Power mode and reduces noise.
Description
Freescale Semiconductor, Inc.