[sdiy] CPU for CR8000

[Ingo Debus]

Am 06.12.2006 um 17:19 schrieb Mike:

> There is a problem here if you're looking for a replacement. The  
> 8048 was a
> mask programmed device, which means you need the official part.  
> Intel did do
> an 8748, which was an EPROM version intended for prototyping, which  
> became
> more popular than they expected because it was useful for small  
> runs and
> one-offs. It has been possible, (though it's going to be hacker  
> archive time
> to find out how), to extract the data from an 8048, so if there  
> were no
> spares, it might be possible to replace the 8048, with a suitably  
> programmed
> 8748, provided a working live machine can be found to transplant the
> firmware from. Finding a programmer that will do 8748's may be
> 'interesting', too.

Hmmm...
Isn't the 8051 pin-compatible and upward software-compatible to the  
8048? If yes, you could use one of the many modern 8051 types with  
built-in Flash code memory (Atmel, Philips etc).

Ingo