[Cryptech Tech] Comments on Alpha Board schematics

[Joachim Strömbergson]

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Aloha!

A comment on sheet 10. The primary use case for the high speed interface
I have been talking about is for extraction of large amounts of data in
reasonable time. Extracting GBytes of random number values for example.

A secondary purpose would be to provide application access via something
else than USB, for example fast Ethernet or GbE. This is feature creep
however.

One way to accomplish this is provide a header connected to pins on the
FPGA. The pins selected on the FPGA must be fast enough to support a
GMII interface. Then the actual interface with PHY can be added as a
board connected to the header. A suitable MAC core with GMII inside the
FPGA provides the interface to the CPU. Such cores are available from
OpenCores for example.

But as said, this is feature creep. I can live with simply removing the
comment on the sheet.

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
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 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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