Epson PF10 problems

Dave Dunfield dave04a at dunfield.com
Fri Dec 23 12:21:15 CST 2005


> > I'd have to look at it to be certain (haven't had to write anything for it
> > in a long time), but I'm pretty certain I used a 6402 - but you could use
> > any of the "hardare programmable" uarts (AY-5-1013, COM2502 etc.) - You
> > don't NEED to use a "hardware programmable" uart, but doing so means that
> > the only thing you need to write is the data register. And with this setup,
> > "writes" are best kept to a minimum :-)
> 
> Yeah,  and it sure simplifies things when you don't need all that extra 
> "stuff" that the programmable ones give you.  I should get a hold of a couple 
> of those chpis one of these days.  Is that 6402 a single-supply part?  I 
> guess I need to fetch a few more datasheets...

IIRC the 6402 (Hitachi) is an updated CMOS AY-5-1013 (which are very common).


Dave

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dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools: www.dunfield.com
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