'To what level of the EMV stack does the Android NFC API provide?

I've been trying to learn about EMV by implementing the contactless protocol on Android. I have read the level 1 (physical layer) EMV Contactless specification and was expecting to need to implement most of it, however the data given by the android NFC API was not what I was expecting.

What layers of the EMV Contactless protocol does the Android NFC API implement? And where should I look within the EMV specification for the next level to implement?

Many thanks



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