ETMv4 Trace Cell

Hello

I have read in the TX2 module description that there is a
Embedded Trace Microcell (ETM) based on the ETMv4 architecture
I would like to ask on which pins of the TX2 these tace pins are:
TRACECLK, TRACEDATA0 until TRACEDATA3.

Kind Regards,

Achim

ETM is internal referred to as trace module, it has no exposed pins outside.