Here is an excellent example (thanks Kai):
http://www.8052.com/forum/read.phtml?id=98892

Of course even this solution may be 8052 derivative dependent.
and thus Kai states "it's not clear, whether the scheme above will provide you the best and most reliable solution. But .... this simplest solution might be acceptable."

My sole objection to Roberts post is the statement "it works" rather than "in my case it works" "it might work for you as well" or some such thing. If I were stringing a one off together, I might do what he suggest, but I would never claim it to simply "work" without reservations.

Erik