TLE9879 External Trigger source for ADC1

Hi

Now I see the TLE9879 and I have question about EIM/ESM trigger source for ADC1.

in UserManual, there is possible that EIM/ESM AD Convert by external trigger,

and it is include COUT63, but I can not find what edge can possible convert ADC1 as external trigger.

so Is there set up SFR Register for rising or falling?

Thanks.