This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DP83630, RMII, Synchronous Ethernet and PTP.

Hi All

I am currently working on a design which requires SYNCe and PTP amongst other things.

I am trying to keep a consistent RMII interface on the processors, but the question is...

Is there a way to get RX_CLK out of the processor in synchronous Ethernet mode.  We need this clock to feed to out DPLL for re-timing.

It would be nice if we can input a 25MHz clock, output a 50MHz clock + RX_CLK or PTP Clock as this is what we are doing on the other Ethernet Interfaces.

"PHYCR2:CLK_OUT RXCLK" and "PTP_COC" seem to do the job, but do they work as expected in RMII mode?

Thanks

Simon