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am3352 GMII interface

Joao Coelho
Prodigy 60 points
Other Parts Discussed in Thread: AM3352

Hi, in the pin mux utility for the am3352 we only have 4 pins for TX and  4 pins for RX of the GMII interface while the standard GMII is 8 pins for TX and 8 pins for RX... can you clarify ??

Thanks

 

  • 0
    TI__Guru 63575 points

    The first paragraph of section 5.5.1 of the AM335x Data Sheet answers this question.

    The Ethernet MAC and Switch implemented in the AM335x device supports GMII mode, but the AM335x design does not pin out 9 of the 24 GMII signals. This was done to reduce the total number of package terminals. Therefore, the AM335x device does not support GMII mode. MII mode is supported with the remaining GMII signals.

    Regards,
    Paul