[Coco] Re: CoCo gcc project

[jdaggett at gate.net]

Both parts that I quoted were base price for a single part. Most price breaks come 
after the first 25 parts and At 1000 lot price the breaks are better. I did not consider 
quantitiy pricing and only one vendor. The MC68882-25 was quoted. The 16Mhz 
part will be cheaper yes. The FPGA part quoted was the XC2S150-5PQ208C. 300K 
gates parts are about $10 more. This was for reference only. As to the exact size of 
the FPGA would be determined by how efficient the code is written and what 
functions are implemented. 

Price wise there is not a whole lot of differences. The main advantage that an FPGA 
has is that the part can be tailored to interface better to the Mc6x09E than the 
MC68882.

I am wondering though about Motorola semiconductor lines. WIth the eventual 
spinoff of the semiconductor division as a company of its own with a tracking stock, 
will the new company look at the portfolio and make massive changes? Maybe they 
will see some of the the 68K product line as end of life. The MC68881/2 have been 
around since that early 80's.


james

On 3 Nov 2003 at 14:52, Theodore A. Evans wrote:

> On 11/03/03, KnudsenMJ at aol.com wrote:
> 
> > Another advantage of FPGAs is that, as the 68882 becomes more
> > obsolete and hard to get, you can keep moving your FPGA design into
> > more recent versions of Xilinx or competitor's chips. The language
> > used to represent the logic functions is independent of the chip
> > architecture, so should transfer easily.
> 
> As to the matter of price, I dare say that he was quoting for faster
> m68882 as in large lots they can sell for as little as $22.50 each. We
> won't be buying them in lots that big.  In addition, I am sure that
> there is more functionality in one than you are likely to fit in a
> single 150,000 gate FPGA.  Finally Motorola still manufactures the
> m68882, considers it a mature design open for new designs, and has not
> published plans to quit providing it in the future.
> 
> > Of course we need a volunteer with access to the special ROM burner
> > used to program FPGAs. 5 years ago that could have been me but not
> > now.
> 
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