[Cryptech Tech] First hash via EIM

[Joachim Strömbergson]

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Aloha!

Шатов Павел wrote:
> 06.02.2015, 12:37, "Joachim Strömbergson" <joachim at secworks.se>:
>> 
>> Yes, your suggestion was good (having page zero for system info).
>> I think that if it is possible to increase the address space we
>> should do so right now. What would be the consequence in terms of
>> access - you are pushing 2+2 w16 for address anyway, or is it only
>> one w16 word? That is, if we move to more bits we need to do an
>> extra write operation?
>> 
> No, we will not need an extra write operation. Novena board has 16
> multiplexed address/data lines and 3 additional address-only lines.
> If you remember my EIM timing diagrams, every transaction has three
> databeats, we need to latch three additional address bits during the
> first databeat and concatenate them with 16 lower bits latched from
> data bus. So only width of address bus will change. I'll send you
> updated arbiter sources soon.

Great! Thanks!

- -- 
Med vänlig hälsning, Yours

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