Program Memory Access - MCQs with answers

Program Memory Access - MCQs with answers

1. Which pin should be set low along with the program counter contents more than 0FFFH for accessing the external program memory?

a. EA
b. ALE
c.PSEN
d. All of the above

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2. Which essential operation should be performed while reading the external program byte on the data bus?

a. Latching of lower address byte
b. Latching of higher address byte
c. Latching of any addressable byte irrespective of priority level
d. None of the above

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3. Which bus /es acquire/s the potential of liberally receiving the code byte after addressing the lower order address byte?

a. Data bus
b. Address bus
c. Both a & b
d. None of the above


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