IMU 9-axis Compass interrupt generation


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I have been using the 9-axis IMU and am attempting to utilize the interrupt generation for the compass sensor. After reading through the datasheet, I see that the LSM9DS1 9-axis gyroscope, accelerometer and compass sensors each have registers to configure the interrupts. These interrupts are then routed to their respective interrupt pins, INT1_A/G, INT2_A/G and INT_M.
My question is then, what did TinyCircuits do with these interrupt pins? There are only 4 pins available to the user on the TinyCircuits IMU; VCC, SDA, SCL and GND. Are the interrupts generated over the I2C lines at all?
Any help would be greatly appreciated.


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