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Nikolay,<br>
<br>
Just as the 6809 and 6809E are different externally, the 63C09 and
63C09E are also different.<br>
<br>
6809 == 63C09<br>
6809E == 63C09E<br>
<br>
(The P suffix indicates a plastic package).<br>
<br>
The VME/ATX 6x0x board is designed for the 6809; i.e., no -E suffix.<br>
<br>
--John<br>
<br>
<br>
<br>
<br>
On 10/05/2014 09:36 AM, Neslou wrote:
<blockquote
cite="mid:8cd4a871-142a-451e-8afe-229743a665f3-/***@public.gmane.org"
type="cite">
<div dir="ltr">
<div>It is the key...... Try, fail and finally success... now
you have learned a lot of thing :-)</div>
<div><br>
<br>
Le dimanche 5 octobre 2014 17:55:31 UTC+2, picmaster a
écrit :</div>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px
0.8ex; padding-left: 1ex; border-left: 1px solid rgb(204, 204,
204);">Hi Neslou,
<br>
<br>
On 10/05/2014 08:15 AM, Neslou wrote:
<br>
> I found this for instance (look at the attached document)
<br>
<br>
Thanks. I also found this one, but unfortunately I stumbled
upon several <br>
other PDFs (like 63C09 without E) and didn't pay attention on
the <br>
suffix. On the testbench my CPU was behaving very strangely -
not <br>
working at all, and it looked like I had wrong description of
the pins <br>
(driver outputs were floating without obvious reason, and
inputs were <br>
driven internally, bizarre!). Also, had to provide the
quadrature <br>
external clocks, and more importantly - on the right pins :).
<br>
<br>
Anyway, I finally understood that the "E" suffix is the key,
and used <br>
the same datasheet that you pointed me too, and the testbench
worked in <br>
the end. Now I have 10x working HD63C09EP (for up to 4 MHz),
which are <br>
in desperate need of project that uses them :).
<br>
<br>
Kind regards,
<br>
Nikolay
<br>
</blockquote>
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