Table of Contents
- 1 What is vectored interrupt?
- 2 Which one of the following is not a vectored interrupt?
- 3 What is meant by vectored interrupt in 8051?
- 4 Which is non-maskable interrupt?
- 5 Which among the following is a vectored interrupt?
- 6 What is the vectored address of the interrupt trap?
- 7 Is a non-maskable interrupt for 8051?
What is vectored interrupt?
In computer science, a vectored interrupt is a processing technique in which the interrupting device directs the processor to the appropriate interrupt service routine.
Which one of the following is not a vectored interrupt?
Discussion Forum
| Que. | Which one of the following is not a vectored interrupt? |
|---|---|
| b. | INTR |
| c. | RST 7.5 |
| d. | RST 3 |
| Answer:RST 3 |
Why is intr non-vectored?
Non-Vectored Interrupts (Scalar Interrupt) are those in which vector address is not predefined. The interrupting device gives the address of sub-routine for these interrupts. INTR is the only non-vectored interrupt in 8085 microprocessor.
What is meant by vectored interrupt in 8051?
An interrupt is an event that occurs randomly in the flow of continuity. The highest priority interrupt is the Reset, with vector address 0x0000. Vector Address: This is the address where the controller jumps after the interrupt to serve the ISR (interrupt service routine).
Which is non-maskable interrupt?
In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. Such uses include reporting non-recoverable hardware errors, system debugging and profiling, and handling of special cases like system resets.
Which amongst the following is not a difference between interrupt and polling?
Interrupt is a hardware mechanism in which, the device notices the CPU that it requires its attention….Difference between Interrupt and Polling.
| S.NO | Interrupt | Polling |
|---|---|---|
| 2. | An interrupt is not a protocol, its a hardware mechanism. | Whereas it isn’t a hardware mechanism, its a protocol. |
Which among the following is a vectored interrupt?
Here TRAP, INTR, RST 7.5 are vectored interrupts.
What is the vectored address of the interrupt trap?
0024H
The interrupt vector address for TRAP is 0024H.
Is trap a vectored interrupt?
The TRAP, RST 7.5, RST 6.5 and RST 5.5 are vectored interrupts. The INTR is a non-vectored interrupt. Hence when a device interrupts through INTR, it has to supply the address of ISR after receiving interrupt acknowledge signal.
Is a non-maskable interrupt for 8051?
8051 has 5 interrupt signals, i.e. INT0, TFO, INT1, TF1, RI/TI….IE (Interrupt Enable) Register.
| EA | IE.7 | It disables all interrupts. When EA = 0 no interrupt will be acknowledged and EA = 1 enables the interrupt individually. |
|---|---|---|
| EX0 | IE.0 | Enables/disables external interrupt0. |