RTX51 Full User Manual.

This is not user manual, just list of functions. Also there is no online manual here: http://www.keil.com/support/man.

This is not user manual, just list of functions. Also there is no online manual here: http://www.keil.com/support/man.

"This is not user manual ... there is no online manual"

Did you not read the page that Keil support cited?

It says,

"...we are unable to offer the RTX51 manual for download, however we do have a PDF document that is a sample of the manual including several RTX51 functions..." (my emphasis)

Isn't this exactly what you just described?

As I said before, if you have a bona fide pre-sales enquiry, you should contact Keil Sales.

You need to enter your address information. Then we are sending you the manual by email.