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'[SX]: dsp for pic'
2000\12\21@131947 by jamesnewton

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SXs can overcome the speed objections and simple multiply by a constant and
accumulate operations can be executed in a surprisingly few instructions
(see
www.sxlist.com/techref/piclist/codegen/constdivmul.htm
for Nikolai Golovchenko code generator for multiplication and division by a
constant which now supports the SXs)

I wonder if SXs aren't being used some times for DSP.

You are certainly correct about the memory limitations.

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{Original Message removed}

2000\12\21@133500 by Dan Michaels

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Andy Warren wrote:
>info <.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU> wrote:
>
>> I hear microchip are releasing a 16 bit micro controller with DSP
>> core next year.
......
>    Given Microchip's past performance with regard to production
>    schedules for new architectures, I'd be VERY surprised if they
>    hit their "early 2002" date... Which is too bad, because there
>    will be significant competition for the dsPIC's target market by
>    then, and it would be a shame if Microchip missed the boat.
>

Anyone know when the Scenix/Ubicom IP2000 is slated to hit
the streets?

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2000\12\21@155555 by Stephen Holland

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As of right now, you can expect to see it in general availability in Q3
2001.


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2000\12\22@032533 by Michael Rigby-Jones

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Even a 100MHz SX wouldn't be able to touch the performance of most of the
basic DSP's in most applications, but as you say it probably has sufficient
power for many "lightweight" DSP apps.  OTOH, DSP's are virtualy useless at
port related operations where micros such as the PIC and SX excel.
Microchips new dsPIC should offer the best of both worlds.  It is allegedly
instruction compatible with the PIC, obviously with extra instructions for
MAC etc.  Personaly I can't wait to have a fiddle with one, hope they do a
decent eval board.

Mike

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2000\12\22@135820 by Dan Michaels

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Stephen Holland wrote:
>As of right now, you can expect to see it in general availability in Q3
>2001.


Thanks Steve, there is just enough description on the website
to whet one's appetite - yes?.

BTW, do you have any idea why your guys didn't ever do an SX48/52
in PLCC? Sure would be nice for smallish production runs.

thanks,
- danM

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2000\12\24@004233 by Stephen Holland

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Honestly, we can offer better prices on all our devices if we have a minimal
amount of packages to manufacture. There is usually small and smallest as
the 2 main choices for package types...

Stephen

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