Simple hardware question regarding ISA bus

[Franc Grootjen]

Hi!

I like to attach a PC network card to a (home made) Z80 computer. A
cheap solution might is to use standard ISA PC hardware and exploit
simple PIO data transfer (no DMA and mapped memory). The problem is that
nowadays 8bit network cards are hard to find :)
Now my questions:

Is it possible to use a simple PIO based network card (like the 3c509)
and stay of the 16 bit ISA extension (just using the 8bit ISA connector)
and limit yourself to only outb instructions?

What happens if I execute a outw instruction to port on an 8bit ISA
card? I'ld guess that the bus doesn't know the card is only capable of
latching in 8 bits eh?

Any information which can help me in this area is highly appreciated!

Franc

[Kingsley Sawyers]

Might it be even easier to use a null-modem cable? Serial ports are common
on most computers, and a lot less complex than any 'real' networking stuff.

Just a thought.

Franc Grootjen wrote in message <3832ABF8...@cs.kun.nl>...