Specifications

BMA180
Preliminary data sheet
Bosch Sensortec
Rev. 1.0 Page 41 / - proprietary information - 06 March 2009
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Specifications within this document are preliminary and subject to change without notice. Document is not intended for publication.
7.9.6.2 Slope interrupt configuration parameters and settings
The following configuration parameters/settings are provided (all unsigned integer)
• slope_int: This bit enables the slope_th_criteria to generate an interrupt. It cannot be
turned on simultaneously with slope_alert. This bit can be masked by
adv_int (value of slope_int is ignored, if adv_int = 0).
• slope_th: defining slope threshold value, LSB size corresponds to 15.6mg for ±2g
range and scales with range selection.
• slope_int_x: defining if any motion event on x-axis should generate slope interrupt
• slope_int_y: defining if any motion event on y-axis should generate slope interrupt
• slope_int_z: defining if any motion event on z-axis should generate slope interrupt
• slope_filt: evaluation if interrupt generation is done with filtered (slope_filt = “1”) or
unfiltered (slope_filt = “0”) acceleration signal.
If slope_filt = 1, the signal is filtered and the slope condition depends
on bw settings.
If slope_filt = 0, the signal is unfiltered and the slope condition depends
only on the maximum bandwidth.
• slope_dur: slope_dur determines interrupt duration before generating interrupt
• slope_alert: if this bit is set, the sensor is turned into alert mode. This bit can be
masked by adv_int (value of slope_int is ignored, if adv_int = 0).