Re: 8520

From: Richard Atkinson (Richard.Atkinson_at_cl.cam.ac.uk)
Date: 2000-08-01 23:50:45

On Tue, 1 Aug 100 g.j.p.a.a.baltissen@kader.hobby.nl wrote:

> > 8520 has clear differences in the software model (no TOD clock) and does
> > not concern us here.
> 
> A friend of mine succeeded in ataching several PC 720KB-drives to 1581. The 
> 8520 is the only IC in the design you cannot buy in a shop. So for this reason 
> we are interested:
> - in what way a 8520 differs from a 6526
> - does the software use the difference
> - can the software be altered to use an 6526(A)

Sorry, Ruud, I forgot about the 1581. You're absolutely right.

Speaking of which, can either the 1581 or CMD FD-2000 use more than one
disk on the shugart bus? Apparently it was specified for up to four
devices, but IBM only ever used two.


Richard

-- 
Richard Atkinson
Software Engineer
Tenison Technology EDA Ltd
http://www.tenisontech.com/

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