In altera Transceiver, why some protocols need rate match fifo, some don't need?

Hi rbugalho,

you mentioned that,

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In some applications (ie, SRIO) it's mandatory that all endpoints trace their reference clocks back to the same source (same crystal).

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Can i say that, SRIO only can transmit data within the same board?

It is impossible to transmit data from board 1 to board 2, because definitely both boards will use different on board oscillator or crstal already.

Am i right?