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

[Jianpeng_Peng]

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?

[PetrS]

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

[Jianpeng_Peng]

Thanks Petr for your answer, I find a way.

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