How to distinguish overflow & underflow interrupt in MCB mode of EMIOS?

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How to distinguish overflow & underflow interrupt in MCB mode of EMIOS?

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Jianpeng_Peng
NXP Employee
NXP Employee

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Flags are generated only at A1 match start if MODE[5] is 0. If MODE[5] is set to 1 flags are also generated at the cycle boundary.

When the FLAG is set, interrupt can be triggered. But how to distinguish FLAG is set at A1 match or cycle boundary?

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

there is no way to distinguish between those, unless you read CNT value, but even this could not give you right decision in same cases.

BR, Petr

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Jianpeng_Peng
NXP Employee
NXP Employee

Thanks Petr for your answer, I find a way.

https://community.nxp.com/docs/DOC-343869

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