ISM half duplex communication using 89C51

[sarang1_in]

Is it possible to design a Half duplex PC to PC communication system using 89CXX?
Anyone knows the chips (transreceiver) for the same. It is a very simple project. I want to send the text to uC 89xx via PC (serial RS232) and transmit it from one end and same setup will be at other end which will show the text on PC. Also anyone can send data and receive data.
Is it possible?

 

[Nigel Goodwin]

Is it possible to design a Half duplex PC to PC communication system using 89CXX?
Anyone knows the chips (transreceiver) for the same. It is a very simple project. I want to send the text to uC 89xx via PC (serial RS232) and transmit it from one end and same setup will be at other end which will show the text on PC. Also anyone can send data and receive data.
Is it possible?

I don't use those microcontrollers, but it's very simple to do with a PIC running at only 4MHz, so I presume it's easy to do with your chip as well.