KXTIK-1004 Datasheet, PDF (50/54 Pages) List of Unclassifed Manufacturers – 2g/4g/8g Tri-axis Digital Accelerometer Specifications

± 2g / 4g / 8g Tri-axis Digital
Accelerometer Specifications
PART NUMBER:
KXTIK-1004
Rev. 2
Dec-2011
The buffer continues to fill sequentially until the Sample Threshold is reached. Note in Figure
11 the location of the FILO read pointer versus that of the FIFO read pointer.
buffer write pointer →
Index
0
1
2
3
4
5
6
7
8
9
Sample
Data0 _{← FIFO read pointer}
Data1
Data2
Data3
Data4
Data5
Data6 _{← FILO read pointer}
← Sample Threshold
Figure 11. Buffer Approaching Sample Threshold
In FIFO, Stream, and FILO modes, a watermark interrupt is issued when the number of
samples in the buffer reaches the Sample Threshold. In trigger mode, this is the point where
the oldest data in the buffer is discarded to make room for newer data.
buffer write pointer →
Index
0
1
2
3
4
5
6
7
8
9
Sample
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
← FIFO read pointer
← Sample Threshold/FILO read pointer
Figure 12. Buffer at Sample Threshold
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