Re: [vhdl-200x-ft] Updated FT19 for process types

The important part of the attributes was the simple attribute specification
so that you can attribute things near where they occur.  With the current
attribute specification you need to add the attribute up in the declarative
region not where the process occurs.


Guyler, Andrew wrote:
> John,
>   I think ALL in the sensitivity lists is a good enhancement.
> 
> As for the attributes, as these have no effect on simulation, only
> synthesis, should this
> "enhancement" be moved to 1076.6.
> 
> This is just the start - if we want to declare design intent, then the
> user may
> want to indicate Block RAM, ROM, DSP Block, Dual-Data-Rate,
> Shift-register,
> not to mention many flavours of FF (enable sync/async-set/reset ...)
> 
>   Andrew
> 
> -----Original Message-----
> From: owner-vhdl-200x-ft@eda.org [mailto:owner-vhdl-200x-ft@eda.org] On
> Behalf Of John Ries
> Sent: Monday, April 18, 2005 9:41 AM
> To: vhdl-200x-ft@eda.org
> Subject: [vhdl-200x-ft] Updated FT19 for process types
> 
> The following document is update to the idea of making processes that
> cause specific sythesis results to occur. Based feedback in a meeting in
> November, instead of having specific process for latch, flip-flop, and
> combinational processes we went with an attribute.  We also added the
> use of ALL in a sensitivity list of a process to indicate all signals
> read by that process.
> 
> Regards,
>     John
> 
> 


-- 
-- mailto: johnr@model.com     phone: (503)685-0864
--   http://www.model.com        fax: (503)685-0921
--