> Hi Jason.
>
> > I've been looking into designing a new SCC card for packet and
> > making the PCB masks freely available on the 'net. I've
> > currently got a USCC and a S5SCC card and I've had a good look
> > at how each of them work. I feel that a PCI based card is beyond
> > my capabilities so I'm talking ISA!
>
> As long as it's possible to select ANY interrupt line, rather than
> being limited to the low interrupts as so many designs are, ISA only
> is fine from my point of view. I have a BayCom USCC card here, and
> it's useless because of its insistance on using either IRQ5 or IRQ7 as
> both are already occupied!!!
Same here. Nevertheless I would say it should include IRQ 3, 4, 5, 7,
9, 10, 11, 12, and 15. Maybe 14 too, but I believe we all use 14 for
the first I/O card, unless there be some diskless PC's as ham
communications servers....
73 de Jose, CO2JA
---Ing. Jose A. Amador | Telf: (537) 20-7814 Depto de Telecomunicaciones | E-Mail: xxzdujp.euqywhxend@brady.co.at ISPJAE |