The Intel philosophy?

> If those original chips hadn't been so popular, Microchip could've
> just oboleted them and started over with a new architecture every few
> years as they needed to make larger chips; that's what many other
> microcontroller vendors do.
>
> Instead, Microchip chose to make new parts that were basically
> compatible with the old.  ALL the paging/banking issues on the larger 12-
> and 14-bit parts are there because Microchip wanted to add code and/or
> data space to those initial chips without changing the basic internal
> architecture.
>
> -Andy

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