Can P2 be used as data input output when EA 0 is made in 8051( when...
Can P2 be used as data input output when EA 0 is made in 8051( when using external memory)? Or when EA is made 0 what happens to P2? Can you please explain?
What happens to P2 when EA is 0 in 8051 microprocessor? Dont you think it is a net question?
Homework Answers
EA : By applying logic zero to this pin, P2 and P3 are used for
data and address transmission with no
regard to whether there is internal memory or not. It means that
even there is a program written to the
microcontroller, it will not be executed. Instead, the program
written to external ROM will be executed. By
applying logic one to the EA pin, the microcontroller will use both
memories, first internal then external (if exists).
Ya, it's a good question , who knows may be it can come on net.
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Can P2 be used as data input output when EA 0 is made
in 8051( when...
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