I have downloaded u-vision4 simulator for doing simulation programs for AT89C51.In the updated version we have the logic analyser.when we generate square wave in any pin of the port can we able to see that generated square wave using logic analyser if it is possible please tell me the configuration for logic analyzer
You can't just download the simulator; you get the complete system - including manuals:
www.keil.com/.../uv4_db_dbg_logicanalyzer.htm
Did you try studying it?