I want to implement FULL RTX51 in a 8051 microcontroller. Is there any specific microcontroller which supports RTX51?
and
I want to interface my this microcontroller to a LAN Card too.
Please Help me in the above scenario. by suggesting me a appropriate microcontroller to perform this task.
"is it possible to interface 8 bit microcontroller and LAN Card?"
Without knowing which particular "LAN Card" (or even a generic specification) it is impossible to say!
However, there are plenty of websites that describe interfacing various 8-bit microcontrollers to various LAN cards - so get searching with your favourite internet Search Engine
"It would be better if you can tell me how to do the interfacing between the two."
See: http://www.keil.com/condb/search.asp
http://www.keil.com/tcpip/