Hello @cant,
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Now, about your original question:
KEA128: Is possible to use the KBI lines as External Interrupts ?
In the KEA128 Sub-Family Reference Manual. Section 35.5 Functional Description., it is mentioned that the KBI could be use as External Interrupts as follows: "[…]these inputs are also useful as extra external interrupt inputs and as an external means of waking the MCU from stop or wait low-power modes."
You might find useful to see the following community post, as there is an implementation of the KBI pins as external interrupts for another Kinetis part: External interrupts on KBI pins of MKE04Z - NXP Community.
Warm regards, Raul.
