>
> At 11:49 16/11/96 -0500, Byron A Jeff wrote:
> >In fact this is what I suggest: Buy a regular old 8 bit serial card with
> >socketed 8050/16450/16550 chip. Remove the chip and plug in a 40 pin
> >cable. You now have an interface to your box that's 8 bit, decoded, has
> >an interrupt. You only get 8 I/O port though. Cost about half the price
> >of the Rat Shack card and has all the decoding done for you. You even get
> >a crystal clock (usually 1.8432 Mhz) to clock your PIC with.
>
> Sometimes you get some 16bit serial cards equally cheap, they have more
> interrupts and often more I/O address choices available, if that is a
> concern. A great idea, anyway!
>

Also, cheap network, and multi-io cards often have 32K rom sockets in,
as well as interrupts. On the multi-io cards, at least rhe printer card will
support easy interrupt access, and then that gives you 32K memory mapped.


--
Ian Stirling.                        |  http://www.mauve.demon.co.uk/
AKA Caeser, Bolonewbie.              |  With information on the PDA I'm making.