FXLC95000CL Datasheet, PDF (26/38 Pages) Freescale Semiconductor, Inc – Xtrinsic FXLC95000CL Intelligent, Motion-Sensing Platform

Mechanical and Electrical Specifications
5.8.1 ADC Sample Rates
The system clock is 16 MHz with the first sample rate generated by dividing the system
clock by 4096 (16 MHz / 4096 = 3906.25 Hz). Subsequent sample rates are all a
sequence of divide-by-two.
The FXLC95000CL platform's internal frame timer supports the following sample rates
(frames per second (fps)):
3906.25 fps
1953.13 fps
976.56 fps
488.28 fps
244.14 fps
122.07 fps
61.04 fps
30.52 fps
15.26 fps
7.63 fps
3.81 fps
1.91 fps
0.95 fps
0.48 fps
0.24 fps
Notes
• At the fastest sampling rate of 3906.25 Hz, there is not
enough time to complete the ADC conversions’ highest-
bit resolution, so only 10-,12-,and 14-bit resolutions are
available at that rate. All of the ADC resolutions (10-,12-,
14-, and 16-bit) are available at all other sample rates.
• Freescale's Intelligent Sensor Framework (ISF) uses the
software-triggered sample mode, using the MTIM16
timer to set the sample period. This allows the
specification of sample periods to microsecond
resolution.
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Freescale Semiconductor, Inc.
Xtrinsic FXLC95000CL Intelligent, Motion-Sensing Platform, Rev1.2, 8/2013.