Well yes, they can program their own code space.  And since the program
space is made of material that can be changed from 1 to 0 electrically,
and 0 to 1 via UV, then they can only change their own memory from 1 to 0,
not the reverse.

It takes some very tricky programming to put a new program in this type of
situation... ;-)

Of course, the flash versions are coming out _Real Soon Now(TM)_.

-Adam

K|bek Tony wrote:
>
> Hi,
>
> Charles Lin wrote:
>
> >I can verify this; I just had the same problem. Unlike the other series
> of
> >PICs, it's not EEPROM, it's UVEPROM. You need to buy the windowed
> version,
> >which only comes in DIP package, and ends in suffix JW.
>
> Well, I know that 'normally' one need the JW parts ( apart from the
> F-series
> ofcource ). But aren't these capable of re-programing thier own
> program memory ? ( i.e. long-write etc. ) Which lead me to belive
> it would also be possible to re-program by ICSP.
> But apperently I'm wrong, which get's me into another jam,
> these chips need to be re-programmable in-service. *Argh*
> I'll just have to wait until the 18F-series ( whenever that will be :)
> ).
> Well well, to much for today I belive, time to take a coffe.
>
> Thanks to thoose who replied ( very fast to ),
>
> /Tony
>
> Tony K|bek, Flintab AB
> 222222222222222222222222222222222222222222222222222222222222
> E-mail: tony.kubek@flintab.com
> 222222222222222222222222222222222222222222222222222222222222
>
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