Steve M. Taylor wrote:
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The ds5000 only suffers by being an 8032 not an 8052, so you lose timer2.

That has made me remember an interesting usenet post, you can find it archived here:

ftp://ftp.ai.uga.edu/pub/microcontrollers/8051/ds5000.bug

Quoting from the post:

Subject: Re: Q:Dallas DS5000 microcontroller

>2. It's device is a 8051 clone (pin & command set compatible) but have more memory inside ( up to 32 Kbytes ).

The only difference I have found between a real 8051 and DS5000 is that if you use the internal ram of DS5000 then you can not use port P2 as the upper address lines with movx @Ri instructions. Some code written for 8051 depend on this and just don not work, like the MCS BASIC-52 interpreter.

Regards,
Enrique.