Datasheet

Preliminary Data Sheet
BMA400
Page 40 /
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BST-BMA400-DS000-00 | Version 0.1 | November 2017 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
4.5. General Interrupt Pin configuration
Interrupt Pin Mapping
The content of the interrupt status registers can be mapped to pins INT1 or INT2, by setting the
corresponding bits from the registers INT1_MAP, respectively INT2_MAP or INT12_MAP.
To disconnect the features outputs to the external pins, the same corresponding bits must be reset,
from the registers, INT1_MAP, respectively INT2_MAP.
Once a feature triggered the output pin, the Host can read out the corresponding bit from the register,
INT_STAT0 , INT_STAT1 or INT_STAT2 .
Interrupt latching
Interrupts can be configured as non-latched or latched. The mode is selected by
INT_CONFIG1.latch_int. Latching determines when an interrupt is released. The behavior of the
different interrupt modes is shown graphically in the figure below
Non-latched mode
In the non-latched mode (INT_CONFIG1.latch_int = 0), both the INT pins (the contribution to the ´or´
condition for the INT pin) and the interrupt status bit in INT_STAT are reset when the interrupt activation
condition is released.
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