MCQOPTIONS
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MCQOPTIONS
This section includes 14 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_RS1=1,_RS0=1,_THEN_THE_REGISTER_BANK_SELECTED_IS?$ |
| A. | register bank 0 |
| B. | register bank 1 |
| C. | register bank 2 |
| D. | register bank 3 |
| Answer» E. | |
| 2. |
The on-chip oscillator is stopped in$ |
| A. | power mode |
| B. | power down mode |
| C. | idle mode |
| D. | ideal mode |
| Answer» C. idle mode | |
| 3. |
The_PCON_register_consists_of$ |
| A. | power mode bit |
| B. | power idle bit |
| C. | power ideal bit |
| D. | power down bit and idle bit |
| Answer» E. | |
| 4. |
The idle mode can be terminated by |
| A. | PRESET |
| B. | CLEAR |
| C. | Interrupt |
| D. | Interrupt or reset |
| Answer» E. | |
| 5. |
The only way to terminate the power down mode is to |
| A. | CLEAR |
| B. | RESET |
| C. | HOLD |
| D. | HLT |
| Answer» C. HOLD | |
| 6. |
In_idle_mode,_the_device_that_is_disabled_is |
| A. | serial port |
| B. | timer block |
| C. | clock to CPU |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 7. |
If RS1=1, RS0=0, then the register bank selected i? |
| A. | register bank 0 |
| B. | register bank 1 |
| C. | register bank 2 |
| D. | register bank 3 |
| Answer» D. register bank 3 | |
| 8. |
The number of 8-bit registers that a register bank contain is |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» E. | |
| 9. |
Among the four groups of register banks, the number of groups that can be accessed at a time is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | all the four |
| Answer» B. 2 | |
| 10. |
The register that is used for accessing external data memory is |
| A. | DPH |
| B. | DPL |
| C. | DPTR |
| D. | NONE |
| Answer» D. NONE | |
| 11. |
The higher and lower bytes of a 16-bit register DPTR are represented respectively as |
| A. | LDPTR and HDPTR |
| B. | DPTRL and DPTRH |
| C. | DPH and DPL |
| D. | HDP and LDP |
| Answer» D. HDP and LDP | |
| 12. |
Which of the following is bit-addressable register? |
| A. | SBUF |
| B. | PCON |
| C. | TMOD |
| D. | SCON |
| Answer» E. | |
| 13. |
Which of the following register can be addressed as a byte? |
| A. | P1 |
| B. | SCON |
| C. | TMOD |
| D. | TCON |
| Answer» D. TCON | |
| 14. |
Which of the following is an 8-bit register? |
| A. | PSW(Program Status Word) |
| B. | TCON(Timer Control Register) |
| C. | Accumulator |
| D. | All of the mentioned |
| Answer» E. | |