I do believe that the 17CXX family has external memory bus support.
Does anyone know if the 18CXX family supports an external memory bus?

Dan

On Tue, 17 Oct 2000 13:37:32 -0500, Dale Botkin wrote:

>On Tue, 17 Oct 2000, Lawrence Lile wrote:
>
>> Can any of the PICs execute code residing in an external memory (like a
>> serial eeprom etc.), or can they just get data from external sources?
>
>Only internal code can be executed on any PIC that I'm aware of, BUT...
>the 16F87x series can write its own FLASH program space.  A guy could
>store code in an external EEPROM, reaqdd it and write it to program space,
>then execute it.  You'd have to watch the number of write cycles, though,
>or you could (in theory) kill the program FLASH.  That's the only way I
>could think of other than using the EEPROM to store tokenized code to be
>executed by a program running from the PIC's internal memory, like the
>BASIC Stamp.
>
>Dale
>---
>The most exciting phrase to hear in science, the one that heralds new
>discoveries, is not "Eureka!" (I found it!) but "That's funny ..."
>                -- Isaac Asimov
>

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