A. DSP processor
B. RISC processor
C. CISC processor
D. Harvard processor
Answer: A
The fast interrupts are used in the DSP processors or in microcontrollers in which a small routine is executed without saving the context of the processor.
2. Which interrupts generate a fast interrupt exception?
A. internal interrupt
B. external interrupt
C. software interrupt
D. hardware interrupt
Answer: B
The external interrupts generate the fast interrupt routine exception in which the external interrupt is synchronized with the processor clock.
3. What is the disadvantage of fast interrupts?
A. stack frame
B. delay
C. size of routine
D. low speed
Answer: C
The disadvantages associated with the fast interrupt is the size of the routine that can be executed and the resources allocated. In this technique, it allocates a couple of address registers for the fast interrupt routine.
4. Which of the following does not have a stack frame building?
A. hardware interrupt
B. software interrupt
C. non-maskable interrupt
D. fast interrupt
Answer: D
The fast interrupt does not have stack frame building and it does not possess any such delays. This can be considered as the advantage of the fast interrupts.
5. What is programmed to generate a two instruction fast interrupt?
A. software
B. application
C. timer
D. sensor
Answer: C
The SCI timer generates the two instruction fast interrupt. This increments the register R1.
6. Which of the following can auto-increment the register R1?
A. SCI timer
B. interrupt
C. software interrupt
D. non-maskable interrupt
Answer: A
The SCI timer is used to generate the two instruction fast interrupt that can increment the register R1 which acts as a simple counter.
7. Which of the following forces a standard service routine?
A. READY interrupt
B. IQRA interrupt
C. NMI
D. software interrupt
Answer: B
The SCI timer is used to generate the two instruction fast interrupt which increments the register R1 that acts as a simple counter which times the period between the events. The events themselves generate an IQRA interrupt, that forces the service routine.
8. Which of the following can be used as a reset button?
A. NMI
B. internal interrupt
C. external interrupt
D. software interrupt
Answer: A
The non-maskable interrupt is used to generate an interrupt to try and recover control and therefore, the NMI can be used as a reset button.
9. Which of the following is connected to a fault detection circuit?
A. internal interrupt
B. external interrupt
C. NMI
D. software interrupt
Answer: C
The non-maskable interrupt is used to generate an interrupt that can be connected to a fault detection circuit like a watchdog timer or parity checker.
10. The time taken to respond to an interrupt is known as
A. interrupt delay
B. interrupt time
C. interrupt latency
D. interrupt function
Answer: C
The interrupts are the most important function of the embedded system and are responsible for many problems while debugging the system. The time taken to respond to an interrupt is called interrupt latency.
