The M6 schematic clearly shows a clocks crystal between pins 38 and 39, though.

On the other hand the M6 schematic isn't 100% trustworthy in my opinion...


On 01 Apr 2019 10:42:13 +0000
" baritonomarchetto@... [oberheim]" < oberheim@yahoogroups.com > wrote:

> The 68B09 is a someway special evolution of the 6809 with INTERNAL clock generation. I suspect it cannot be monitored then.
> Anyway, a replacement cpu will pop in my mailbox in one month (or two...).
> Will keep you posted, but please feel free to suggest me tests to slim down the possibilities area. Thanks!
>
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--
M.R. < gacki@... >