hi all I am doing a project which involves storage of some values in nonvolatile ram so in case of powerdown the value remains there and it can be read back when circuit gets power.This value should be modified also. I am using atmel 89C51 and i am using atmel's 24C04 as nonvolatile ram. I have done my coding in assembly. Now my problem is I dont know how to read data from n write data to this ram.