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CAN ANY ONE TELL ME HOW TO READ AND WRITE EXTERNAL RAM I AM USING C LANGUAGE WITH KEIL EDITOR PLEASE DONT GO IN HARDWARE DETAIL... JUST GIVE MW L.O.C. THANKYOU
What on earth made you think that writing in ALL CAPITALS in any way enhances your post??
To answer your question, you need to read the C51 Manual:
http://www.keil.com/support/man/docs/c51/c51_le_memareas.htm
http://www.keil.com/support/man/docs/c51/c51_le_extdatamem.htm
etc...
With embedded systems - especially the small embedded systems where the 8051 is appropriate - you cannot avoid some hardware detail!
PLEASE DONT GO IN HARDWARE DETAIL
.. without one connected by hardware?
Erik