MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your 8051 Microcontroller knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the meaning of the instruction MOV A,05H? |
| A. | data 05H is stored in the accumulator |
| B. | fifth bit of accumulator is set to one |
| C. | address 05H is stored in the accumulator |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
JZ, JNZ, instructions checked content of _______ register. |
| A. | DPTR |
| B. | B |
| C. | A |
| D. | PSW |
| Answer» D. PSW | |
| 3. |
DJNZ R0, label is ________ byte instruction. |
| A. | 2 |
| B. | 3 |
| C. | 1 |
| D. | Can t be determined |
| Answer» B. 3 | |