Difference B/W P89C51RD2 and T89C51RD2

[Suresh Kumar]

Hi,

Since last two years I am using P89C51RD2, just now I saw equivalent pin to pin compatible Atmel AT89C51RD2.

What is the difference between these two controllers functionality wise, Can I use my Philips hex code straight away with out modifying any thing in ATMEL.

I am planning to use Atmel provided FLIP ISP s/w, Is it ok.

Is there any restrictions shifting from Philips to Atmel regarding code point of view

Thanks for your early responses.

Bye,
Suresh Kumar. Kavula

[Andy Ayre]

The only way to get a definative answer to your question is to carefully compare the datasheets of both devices. Pay particular attention to the clock structure and the SFRs, including the positions of individual bits.

FLIP works ok, but lacks a lot of the features that Flash Magic has. I know for sure that Flash Magic does not work with the Atmel devices.