See "The PCMCIA Developer's Guide" by Michael T. Mori to start. There's
schematics at the back, so it'll give you pinouts. You'll need the databook
for whatever PCMCIA controller you select if you want to write to its
registers directly.

PCMCIA bus is basically ISA with some lines missing.

rick


>Can anyone point me to a source of information regarding pcmcia
>interfacing?  I have checked out pcmcia.org and pc-card.com, but what I
>seek is low-level, bit-twiddling information.  I need to find out what it
>would take to integrate a pcmcia modem into my embedded project.
>
>        Thanks a lot,
>        cole@easyon.com