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hey
i hav tried connecting the port 2 to a 4bit encoder ht12e
i hav masked d data n used only 4bits n sending it to ht12e
when check d result i get +5v on pins of port 2 bt when i connect it to encoder it give 0.60v
d encoder gives expected result individually so does 8051....
bt on connecting thm it gives 0.60v.....
i hav tried resistive as well as transistorized pullup.....