Paul Hutchinson wrote:

> > -----Original Message-----
> > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Alan B. Pearce
> > Sent: Thursday, April 15, 2004 10:02 AM
> >
> > >the 82C55A was commonly used for this. Not sure if it is still
> > >made, but I imagine there are similar upgraded devices today...
> >
> > It is still made, mainly by Asian sources, although Intersil also seem to
> > source it for the 80C86 line that they do.
> >
> > another possibility along the same lines would be the Motorola
> > PIA, but the part number escapes me, 6850? or was that the UART?
>
> 6850 was the UART, 6823 was the PIA (MC146823 to be exact). I don't think
> anyone still makes it.
>
> Paul

IIRC the 6522 VIA could be used for parallel I/O similar to the 8255. I recently
saw the 6522 advertised on the crownhill web site (http://www.crownhill.co.uk)

Regards
Sergio Masci

http://www.xcprod.com/titan/XCSB - optimising structured PIC BASIC compiler

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