[Coco] Checking/Testing a 68B09P

[Darren A.]

>All:
>
>Yesterday, I picked up a set of 6809 40-pin DIP processors (from a local 
>Phoenix electronic junkstore - Apache Reclamation and Electronics). I 
>wondered if anyone could tell me whether they are worth keeping or not, 
>plus if there was a way to test them without using a real CoCo?
>
>Of the lot, I have 6 pieces of HD68B09P, and one MC68B09P (I also found a 
>wierd floppy drive controller chip - FDC1795 - does anyone know anything 
>about this - I found a datasheet, but I am wondering if it could be useful 
>for building a more modern FDC board for an Altair I have sitting waiting 
>for restoration?).
>
><snip>

These won't work in the CoCo. The CoCo requires the 6809E processor (where 
'E' means external clock). The 6809 (without 'E') have some different clock 
and control lines.

Darren

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