MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If any change in sensor value is detected at the end of a sensor matrix scan, then the IRQ line |
| A. | goes low |
| B. | goes high |
| C. | remains unchanged |
| D. | none |
| Answer» C. remains unchanged | |
| 2. |
The flag that increments automatically after each read or write operation to the display RAM is |
| A. | IF |
| B. | RF |
| C. | AI |
| D. | WF |
| Answer» D. WF | |
| 3. |
The FIFO status word is used to indicate the error in |
| A. | keyboard mode |
| B. | strobed input mode |
| C. | keyboard and strobed input mode |
| D. | scanned sensor matrix mode |
| Answer» D. scanned sensor matrix mode | |
| 4. |
The mode that is programmed using end interrupt/error mode set command is |
| A. | scanned keyboard special error mode |
| B. | scanned keyboard with N-key rollover |
| C. | scanned keyboard mode with 2 key lockout |
| D. | sensor matrix mode |
| Answer» B. scanned keyboard with N-key rollover | |