Iain Whyte <iain_whyte@BIGFOOT.COM> writes:
> I shouldn't have any real trouble accessing external memory with the
> PIC, should I?

External *data* memory is not hard.  If you want a lot of it, you
might end up using either a lot of IO lines or some extra hardware
(external 74373 as address latch, etc).  Or you can use serial
memory devices.

External *code* memory is hard.  In fact, I think on the 16Cxx
chips, it's just about impossible.  If you want a larger program,
the usual trick is to program the PIC with an interpreter and put
some kind of byte codes on the external memory (this is how BASIC
Stamps work).

Brian