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Altera_Forum
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13 years ago

Informations about DUAL XAUI TO SFP+ HSMC BOARD/BCM8727

Hello, I wanted to ask, if anyone has more informations about how to use the DUAL XAUI TO SFP+ HSMC BOARD, especially the BCM8727 and its registers. I'm using the DE4 Development Board an...
Altera_Forum's avatar
Altera_Forum
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12 years ago

Oh, I'm using the same REFCLK for both xcvr's, since there is no other REF_CLK for XAUI interfaces on this board.

About those magic numbers for lane swapping, I've realized that they're must not be used if you are not making a loopback, so using a SFP+ on channel 1 probably doesn't need any configuration if you are connecting it to another SFP+ interface.

Those BCM8727's registers are difficult to find because Broadcom doesn't distribute their datasheets publicly (you must have an special account to access their system), and Terasic is not quite "user-friendly" in terms of documentation and support.