"its expected you know 8155, its very like you."

You mean I belong in an antiques shop and have very little memory? ;o)

"what was my point initially, instead using same port multiply better go for more powerful MCUs like you stated."

But then why did you mention the 8085 in the first place? It is not more powerful and it certainly isn't easier to use than the modern 8051 derivatives. Let alone the fact that it's as good as obsolete.

"It was the 8085 time where it has to be done via external ciruits."

That's some time ago and, fortunately, nowadays there are other, better, alternatives.


Rob.