MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The configuration in which each LED receives operating current of 8 mA from power supply while the port lines sink the current on each port line is |
| A. | common port configuration |
| B. | common anode configuration |
| C. | common cathode configuration |
| D. | none of the mentioned |
| Answer» C. common cathode configuration | |
| 2. |
Port 1 lines are used during programming of |
| A. | external EPROM and EEPROM |
| B. | external ROM and RAM |
| C. | internal ROM and RAM |
| D. | internal EPROM and EEPROM |
| Answer» E. | |
| 3. |
When the port lines of a port are to be used as input lines then the value that must be written to the port address is |
| A. | F0H |
| B. | 0FH |
| C. | FFH |
| D. | 00H |
| Answer» D. 00H | |
| 4. |
If the EA(active low) signal is grounded then the execution |
| A. | directly start from main memory |
| B. | directly start from 16 bit address in main memory |
| C. | directly start from 16 bit address in program memory |
| D. | directly start from RAM |
| Answer» D. directly start from RAM | |
| 5. |
Each port line of a port can individually sink a current of upto |
| A. | 2 mA |
| B. | 8 mA |
| C. | 5 mA |
| D. | 1 mA |
| Answer» C. 5 mA | |