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sinara-hw / Sayma_AMC

AMC FPGA carrier board with FMC, dual SFP and RTM
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"Si5325" typo #70

Closed sbourdeauducq closed 5 years ago

sbourdeauducq commented 5 years ago

image

sbourdeauducq commented 5 years ago

Also, why is that a "WR clock input"? What are the exact use cases for this connector and signal?

hartytp commented 5 years ago

@sbourdeauducq It's not really a WR clock input at all. IIRC, it's just an unbuffered connector that goes to a GC pin.

The main use WR case I can think of for WR would be the reference clock if Sayma were used as the master. However, I suspect that it will be useful for testing and debugging the WR implementation. But, I would support a better name for the signal.

sbourdeauducq commented 5 years ago

Let's just call it "AMC external clock input".