Prasad, Satyaprakash (Consultant) wrote:
> When we say that it is a PIC of 12,16,17 or 18 series, is it that we
> actually mean to differentiate it with the memory bit it can address
> at a time.

No.  That (assuming you meant program memory width?) is only one factor that
often varies between the families.  The 12 family (except the stupidly
misnamed 12F629/12F675 which are really 16 family) have a 12 bit instruction
word, the 16 family a 14 bit instruction word, both the 17 and 18 families
have 16 bit instructions, and the 30 family has 24 bit instructions.

> Is it possible that an application developed for PIC 12
> could execute on PIC 16 series.

Certainly not at the binary level.  Microchip has kept the source code
reasonably compatible between families, so a PIC 12 program should be
portable to a PIC 16 at the source code level with minimal changes.

> And what exactly we mean when we say PIC can address 16 bit
> at a time?

I don't know.  You said it, not me, and I don't know who "we" is.  This
sounds like it is referring to the instruction word size, which is also the
program memory word width.


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