direct connection between 2 UTMI+ interfaces

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benoit2002

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utmi+

Is it possible to interconnect 2 UTMI+ interfaces directly ?

The goal is to get rid of the PHY layer if both USB host and device are on the same board (for example a processor with a UTMI+ interface could be directly connected to a companion chip with the same interface).

Thanks for your help,
B.
 

Should design a protocol translation logic between with two link.
 

I think it is possible. You need a clock generator to send out the same clock frequency 30 or 60 Mhz for both controller as UTMI+ clock.
 

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