At 15:34 16/05/97 -0400, Francesco Cembrola wrote:
>I am a little confused on the purpuse of having the Data EEPROM.
>Can someone explain the use of it?

let's say you have some data that you still want to have when the pic is
powered up the next time: how'd you do that? since it's some kind of
"online" data, you can't put it in the code prom (you don't know it when
programming it), and if you put it into ram, it's gone after power down. so
you put it into eeprom, and bingo -- you have a non volatile read- and
writeable memory.

>Also can I have an exsample of how to write a value to the first location in
>the above memory and then read it back again?

Page 11-31 ff. of the 96/97 data book shows how to do it, they even have a
code example there. (All theory, I'll have to check it by myself since I'm
going to use it, but only in a couple of days.)

I thought of writing some sample code here, but it's really all there --
provided it works as written. For the first location you put 0 in EEADR and
your data in EEDATA, and then do as they say.