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In article <13192@darkstar.ucsc.edu> moorthy@saturn.ucsc.edu (Harihara Moorthy) writes:
>
>Hi:
>
>We are considering developing a board for voice applications, and have
>narrowed down the choice of the dsp processor to TMS32031 and Motorola56001.
>We are inclining towards 32031 for the following reasons: faster, both
>floating and integer arithmetic, more on-chip memory, and possibly
>cheaper.  We would like the chip to reasonably meet our future needs which
>might include voice recognition, fax transmission etc.  I would appreciate
>your input on how these two chips compare.

  I don't know about cheaper.  The last time I was princing C30 chips 
they were running $270.  in quantity.  However, the C31-27 could be 
significantly cheaper.  Call your local reps about that.  

   My preference is towards the C3x as well.  Much of my DSP expertise
was cut with this device.  IN addition I like the feature of the dual
busses in the same memory address space.  This saves a lot of hassles
in coding and design.    
    I'm not sure, but I do not think that the 56K supports the following 
features that the C30 does:

	a)  parallel instructions
        b)  serial ports (2 for the C30, 1 for the C31)


>
>Also, can someone identify applications where floating point dsp processor
>will be esspecially needed.

  Graphics, particularly maldebrot fractals.  




-- 
Andrew E. Page (Warrior Poet)   |   Decision and Effort The Archer and Arrow
Concepts Engineering            |     The difference between what we are
CIS:70202,234  BIX:page1        |           and what we want to be.

In article <1991Mar19.183918.6460@world.std.com> aep@world.std.com (Andrew E Page) writes:

>In article <13192@darkstar.ucsc.edu> moorthy@saturn.ucsc.edu (Harihara Moorthy) writes:
>    I'm not sure, but I do not think that the 56K supports the following 
>features that the C30 does:
>
>   a)  parallel instructions
The 56k basically allows a parallel data move instruction.  It's
mainly useful for setting up registers in advance;  the parallel moves
often get bottlenecked by the data bus anyway.

>   b)  serial ports (2 for the C30, 1 for the C31)

The 56k has 2 serial ports and a parallel port.  It can generate baud
rates internally.  Actually, I think the interfacing capabilities are
one of its strong points.  The Motorola documentation of those
capabilities is not one of its strong points.


Brian Hanafee

In article <1991Mar19.183918.6460@world.std.com> aep@world.std.com (Andrew E Page) writes:
>
>    I'm not sure, but I do not think that the 56K supports the following 
>features that the C30 does:
>
>	a)  parallel instructions
>        b)  serial ports (2 for the C30, 1 for the C31)

a)	the 56000/56001 supports "parallel moves", i.e., the move
	instructions can under  some circumstances be executed in parallel
	with ALU ops.

b)	the 56000/56001 has three reconfigurable I/O ports, two of which
	can be used as serial ports.



-- 
Jeff Carroll
carroll@ssc-vax.boeing.com