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Can hardware trigger an interrupt

Anonymous

∙ 15y ago

Updated: 12/14/2022

Yes

Wiki User

∙ 15y ago

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Q: Can hardware trigger an interrupt

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What is an 8085 interrupt?

There are 2 types interrupts in 8085 such as: 1)hardware interrupt 2)software interrupt

What are interrupters?

An interrupt is a hardware-generated change of flow within the system. An interrupt handler deals with the cause of the interrupt. Control is then returned to the interrupted context An interrupt is a hardware-generated change of flow within the system. An interrupt handler deals with the cause of the interrupt. Control is then returned to the interrupted context

What are hardware and software interrupts in microprocessors?

(Q)What are Hardware and software interrupt? draw the block daigram of 8259 interrupt controller and explain in brief..

What is the difference between software and hardware interrupt?

The difference is that a hardware interrupt is a signal relayed to a system's CPU directly because of some piece of hardware, such as a keyboard or mouse. A software interrupt is a signal sent to indicate that something within a piece of software requires attention.

What is the 8086 interrupt to play music?

An interrupt is a mechanism for hardware of software to interrupt the processor to go do something else. Playing music is a much higher level abstraction, and it is not valid to ask what is the interrupt to play music, partly because it depends on the specific hardware implementation.

What is interrupt acknowledge?

Interrupt acknowledge is the process of acknowledging a hardware interrupt, obtaining an interrupt vector address, and initiating the interrupt service routine in software. The INTA- (Interrupt Acknowledge) pin has the same timing as RD-, and external hardware is expected to provide an opcode in response to it. In the case of TRAP, RST7.5, RST6.5, and RST5.5, there is no specific interrupt acknowledge cycle like there is for INTR, but everything else is the same.

What chip controls hardware interrupts?

Hardware interrupts can be controlled by the 8259 Programmable Interrupt Controller

HOW IS SOFTWARE INTERRUPT INITIATED?

Interrupt signals initiated by programs are called software interrupts. A software interrupt is also called a trap or anexception. A signal informing a program that an event has occurred. When a program receives an interrupt signal, it takes a specified action (which can be to ignore the signal). Interrupt signals can cause a program to suspend itself temporarily to service the interrupt. Interrupt signals can come from a variety of sources. For example, every keystroke generates an interrupt signal. Interrupts can also be generated by other devices, such as a printer , to indicate that some event has occurred. PCs support 256 types of software interrupts and 15 hardware interrupts. Each type of software interrupt is associated with an interrupt handler -- a routine that takes control when the interrupt occurs. For example, when you press a key on your keyboard, this triggers a specific interrupt handler. The complete list of interrupts and associated interrupt handlers is stored in a table called the interrupt vector table , which resides in the first 1 K of addressable memory.

What are the applications of hardware interrupts in 8085?

The hardware initiates an interrupt when it feels that the situation requires the CPU's action.

What thing indicate a hardware conflict?

Received when two devices were trying to use the same interrupt request (or IRQ) to signal an interrupt to the Programmable Interrupt Controller (PIC).

Difference between software interrupt and hardware inerrupt?

Hardware Interrupt: Each CPU has External Interrupt lines(about 7). Other external devices line keyboard, Mouse, Other controllers can send signals to CPU asynchronously. Software Interrupt:is an interrupt generated with in a processor by executing an instruction . Software interrupt are often used to implemented system calls because they implemented a subroutine call with a CPU ring level change.

What are interrupts initiated by instructions called?

Those would be software interrupts. Interrupts initiated by the hardware would be hardware interrupts. While the socket a mouse is plugged into would use a hardware interrupt, a mouse driver would use a software interrupt.