Q. 8255 sets INTR when STB'=-----,IBF=---------,INTE=--------,for input conrol signals
✅ Correct Answer: (C)
1,1,1
Microprocessors MCQs | Page - 4
Dear candidates you will find MCQ questions of Microprocessors here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Upon activation of------ signal,output device reads data from output port and acknowledges it
✅ Correct Answer: (C)
OBF\
Q. In ------ of 8255 ,bidirectionali/o data transfer is possible
✅ Correct Answer: (C)
mode2
Q. Walkie-talkie is an example of serial communication
✅ Correct Answer: (B)
half-duplex
Q. Asynchronous serial communication involves transmission of
✅ Correct Answer: (D)
all
Q. To indicate end of conversion ADC 0808/0809 ACTIVATES -----SIGNAL
✅ Correct Answer: (A)
EOC
Q. Conversion time Tc of successive approximation ADC is given as
✅ Correct Answer: (B)
T(n+1)
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