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What is the role of testout pin on AM335x?

Guru 10570 points

Hello,

There is testout pin on AM335x(ZCE:B6, ZCZ:A3).
Since it have been floating as TP on ICE, IDK, EVM.
  - What is the role of it?
  - How should I treat it?
  ( Should I put it as TP? Just floating is ok? )

Best regards,
RY