What is the main reason of that the MMA865x has two interrupt outputs?

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What is the main reason of that the MMA865x has two interrupt outputs?

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hjlim
Contributor II

MMA865x has two interrupt pins.

Are there special cases that the user should use both channel?

Or is it just for convenience?

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi HJ,

One interrupt pin is typically used to indicate data-ready for processor synchronization and the second one for any of the embedded functions such as any-motion (slope) detection for wake-up, tap sensing for tap-sensitive user interface control, orientation change recognition for portrait or landscape switching, low-g/high-g detection for shock and free-fall detection, or no-motion for power saving. All these embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data.


Regards,

Tomas


PS: If my answer helps to solve your question, please mark it as "Correct" or “Helpful”. Thank you.

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1,038 Views
TomasVaverka
NXP TechSupport
NXP TechSupport

Hi HJ,

One interrupt pin is typically used to indicate data-ready for processor synchronization and the second one for any of the embedded functions such as any-motion (slope) detection for wake-up, tap sensing for tap-sensitive user interface control, orientation change recognition for portrait or landscape switching, low-g/high-g detection for shock and free-fall detection, or no-motion for power saving. All these embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data.


Regards,

Tomas


PS: If my answer helps to solve your question, please mark it as "Correct" or “Helpful”. Thank you.

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