hardware interrupt


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hardware interrupt

A signal created and sent to the CPU that is caused by some action taken by a hardware device. For example, keystroke depressions and mouse movements cause hardware interrupts. See IRQ and interrupt.
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References in periodicals archive ?
Due to the fact that hardware interrupts always have the highest priority, the currently running OS tasks in this partition could be interrupted by the CAN controller (Figure 7, left).
For a hardware interrupt, the latency is the time elapsed from the interrupt request generation to the execution of the first line of ISR code.
-- Upon a hardware interrupt, the system has to save the context of the currently executing program and, after executing the interrupt handler, restore the interrupted program's state.
An interrupt latency is the time it takes a CPU to service a hardware interrupt generated by a plug-in board.
Instead of stopping in the middle of writing a file, DOS stores the interrupt and characters in a special area of memory reserved for storing hardware interrupts. This is the hardware interrupt stack.

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