Microprocessors And Microcontrollers MCQ Questions & Answers | ECE
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Each section contains 100 MCQs on
Microprocessors and Microcontrollers .
The advantage of cycle stealing in DMA is that
1. It increases the maximum I/O transfer rate.
2. It reduces the interference by the DMA controller in the CPU's memory access.
3. It is beneficially employed for I/O device with shorter bursts of data transfer.
Which of the above statements are correct?
Which of the following computation will take minimum number of clock cycles, if it is implemented on 8051 micro-controller? Following is variable declaration in c code:
Unsigned int a, b;
If $${\text{CS}} = {\overline {\text{A}} _{15}}{{\text{A}}_{14}}{{\text{A}}_{13}}$$ is used as the chip select logic of a 4K RAM in an 8085 system, then its memory range will be
