± 2g / 4g / 8g / 16g Tri-axis Digital
Accelerometer Technical
Reference Manual
PART NUMBER:
KX132-1211
Rev. 1.0
31-Jul-2019
36 Thornwood Dr.
–
Ithaca, NY 14850
© 2019 Kionix
–
All Rights Reserved
tel: 607-257-1080 – fax:607-257-1146
893-12874-1907311402-0.17
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The buffer continues to fill sequentially until the Sample Threshold is reached.
Index
Sample
0
Data0
← FIFO read pointer
1
Data1
2
Data2
3
Data3
4
Data4
5
Data5
6
Data6
buffer write pointer →
7
← Sample Threshold
8
9
Figure 24:
Buffer Approaching Sample Threshold
In FIFO and Stream 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.
Index
Sample
0
Data0
← FIFO read pointer
1
Data1
2
Data2
3
Data3
4
Data4
5
Data5
6
Data6
7
Data7
← Sample Threshold read pointer
buffer write pointer →
8
9
Figure 25:
Buffer at Sample Threshold
