Re: [CAD_CAM_EDM_DRO] p-port alternative 8255PPI

Hi Jerry,

Were you LOOKING for 8255 stuff (24 pin I/O card)? I'm confused. I
thought you were just referring to IBM's use of the chip in the original
IBM PC.

It'd be nice to have that many pins, but a PCMCIA (and other "SPECIAL")
card would be both expensive, and typically not supported by DOS apps.
AND, I'm not about to run CNC hardware from my IBM laptop, anyway!

Alan KM6VV


Paul wrote:

>
> Hi Jerry
>
> www.amplicon.co.uk/pdf01/pg191.pdf - 82C55 and 82C54 in a PCMCIA card.
> Somewhat expensive for just three counter/timers and 24 bits of digital IO.
>
> Regards, Paul.
>
> On Tuesday 19 February 2002 8:23 pm, Carol & Jerry Jankura wrote:
> > I was thinking of the 8255 on a PCMCIA card. I'm using a notebook (laptop)
> > to run my machine.
> >
> > -- Jerry