Output Control Signals in 8051 - MCQs with Answers
Output Control Signals in 8051 - MCQs with Answers
Q1. What is the constant activation rate of ALE that is optimized periodically in terms of an oscillator frequency?a. 1 / 8
b. 1 / 6
c. 1 / 4
d. 1 / 2
View Answer / Hide Answer Q2. Which output control signal is activated after every six oscillator periods while fetching the external program memory and almost remains high during internal program execution ?a. ALE
b.
PSENc.
EAd. All of the above
View Answer / Hide Answer Q3. Which memory allow the execution of instructions till the address limit of 0FFFH especially when the External Access (EA) pin is held high?a. Internal Program Memory
b. External Program Memory
c. Both a & b
d. None of the above
View Answer / Hide Answer ANSWER: a. Internal Program Memory
