[Coco] An MC68HC11A1P Based Computer Idea

[jdaggett at gate.net]

On 22 Jul 2012 at 14:53, john dumas wrote:

> You are certainly correct about all the 05s & 11s used by the comm 
> division. There was even a
> comm division design engr in our austin design center, using the same
> tools we used. But, to create special variants just for MOT usage in their
> products. Maybe some of those you used were created that way. Lots of
> "funny suffixes" to the part numbers that I never knew what they
> did.............
> 

The suffixes were different from part to part. Some of them the last two letters denoted the in 
house code name for the part. Such as the MC68HC05SC was the Starchip used first for 
DSP in alpha pagers. Later was replaced by the MC6HC05WJ, Windjammer. The later had 
an interleaver circuit and a bunch others to help inthe decoding of the four layer protocol for 
the Flex sytems. Those two and the MC68HC11PH8 which had 60K of ROM and 2K of RAM 
was used a lot in the 2, 4 and 8 line alpha pagers as well as some of the numeric pagers. 

Yeah it was fun just trying to keep up with the numerous variations of the two processors. 

james