Michael Watterson wrote:
> I'll agree the 30F is useful. after all it's a MIPS.

Yes it is, and no its not.  The PIC 24, 30, and 33 all use the 24 bit dsPIC
core, although the PIC 24 have the DSP part removed.  There are a lot of
applications where a fast and capable 16 bit integer core with single cycle
multiply and barrel shifter is quite useful.

> But I've seen primitive  real  DSP even on a 16F. I'm doing some
> "real"
> DSP on 18F.  Read Microchip's description of 8x8 in the 18F4550
> datasheet. They certainly mention something about DSP.

You can perform DSP operations on any processor.  However, to qualify as a
DSP processor, it must at minimum be able to do fast repetative
multipy-accumulates, preferably with overlapped addressing increment and
loop termination check.  The PIC 30 and 33 have this.


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