± 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
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All Rights Reserved
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2.2.1.2
Absolute Threshold Mode
The Absolute Threshold Mode of the KX132-1211 operates similar to the Relative Threshold Mode described in details
before with the only difference being that each acceleration sample is being compared to the same user defined wake-
up threshold (WUFTH) or back-to-sleep threshold (BTSTH) regardless of previous sample. Once the acceleration
sample exceeds the threshold, the debounce counter begins the count. If at any point during the count, the acceleration
sample falls below the threshold, the counter will get either reset or decremented based on the C_MODE bit setting.
Once the debounce counter reaches the user defined count (WUFC), the interrupt is issued as shown in Figure 6.
Figure 6:
Latched Motion Interrupt Response in the Absolute Threshold Mode
