3.13 INT - Interrupt
Interrupt Pin State on Device Initialization
The interrupt pin will transition to a low state upon completion of the device's
initialization. This state will be sustained until the host reads either the button
status (BTTNSTA) or the sensor state (SENSTATE[n]).
Interrupt Pin State on Touch State Changed
The interrupt pin will transition to a low state when the button state is from NO-DETECT to DETECT (or) DETECT to NO-DETECT. This state will be sustained until the host reads either the button status (BTTNSTA) or the sensor state (SENSTATE[n]).