Que: 61. Which of the following is correct about the MUL instruction?
|
| a. it is a byte-by- byte multiplication instruction |
| b. the product is stored in two registers R1 and R0 |
| c. both of the mentioned |
| d. none of the mentioned |
(c). both of the mentioned
Que: 62. In AVR, when is the V flag set?
|
| a. their is a carry from D7 bit |
| b. their is a carry from D6 to D7 bit |
| c. both of the mentioned |
| d. any of the mentioned |
(d). any of the mentioned
Que: 63. To set the bits of a register R1 to 1, we must OR the contents of the register with?
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| a. 00H |
| b. 11H |
| c. FFH |
| d. 0FH |
Que: 64. CP instruction alters the value of the register?
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| a. TRUE |
| b. FALSE |
| c. none of the mentioned |
| d. can’t be said |
Que: 65. What is right about the ROR instruction?
|
| a. it rotates the contents of the register left to right |
| b. it rotates the contents of the register from right to left |
| c. it rotates the contents of the register from left to right through carry |
| d. it rotates the contents of the register from right to left through carry |
(c). it rotates the contents of the register from left to right through carry
Que: 66. In AVR, which of the following registers are not used for programming timers?
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| a. TCNT |
| b. TCON |
| c. TIFR |
| d. None of the mentioned |
Que: 67. What is the use of the prescalar in the operation of the timer?
|
| a. for fast calculations |
| b. for increasing the time delay given by the timer by decreasing its frequency of operation |
| c. for removing the concept the reloading of count |
| d. for easy counter operations |
(b). for increasing the time delay given by the timer by decreasing its frequency of operation
Que: 68. What modes are generally used in the operation of the timer0?
|
| a. Normal mode |
| b. CTC mode |
| c. PWM mode |
| d. All of the mentioned |
(d). All of the mentioned
Que: 69. Timer 0 can act as a counter
|
| a. if the CS02-CS00 are 110 or 111 |
| b. if the FOC0 bit is set to 110 |
| c. none of the mentioned |
| d. all of the mentioned |
(a). if the CS02-CS00 are 110 or 111
Que: 70. Which of the timer can operate in the 16 bit condition?
|
| a. timer0 |
| b. timer1 |
| c. timer2 |
| d. all of the mentioned |