PCI INTERRUPT Meaning and
Definition
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A PCI interrupt refers to a signal generated by a Peripheral Component Interconnect (PCI) device to alert the central processing unit (CPU) that it requires attention. PCI is a computer bus for connecting peripheral devices to the motherboard of a computer system. When a PCI device needs to communicate with the CPU, it usually relies on interrupts.
Interrupts are signals that cause the CPU to suspend its current activities and direct its attention to handle a specific event or request. In the context of PCI, a PCI interrupt is sent by a device such as a network card, sound card, or graphics card to inform the CPU that it needs to process data or perform a particular action.
When the CPU receives a PCI interrupt, it halts its current operations and switches to an interrupt handling routine. This routine, also known as an interrupt service routine (ISR), is a piece of code designed to address the specific needs of the PCI device that sent the interrupt. The CPU will execute the ISR to fulfill the device's request or perform necessary operations.
PCI interrupts are critical in ensuring efficient communication and coordination between peripheral devices and the CPU. They allow devices to communicate with the CPU on-demand, avoiding the need for continuous polling and enabling the CPU to focus on other tasks when no interrupts are pending. Interrupt requests are typically prioritized, allowing the CPU to handle urgent requests first and deliver efficient performance across the system.
Common Misspellings for PCI INTERRUPT
- oci interrupt
- lci interrupt
- 0ci interrupt
- pxi interrupt
- pvi interrupt
- pfi interrupt
- pdi interrupt
- pcu interrupt
- pcj interrupt
- pck interrupt
- pco interrupt
- pc9 interrupt
- pc8 interrupt
- pci unterrupt
- pci jnterrupt
- pci knterrupt
- pci onterrupt
- pci 9nterrupt
- pci 8nterrupt
- pci ibterrupt
Etymology of PCI INTERRUPT
The etymology of the term "PCI interrupt" can be understood by breaking it down into its components:
1. PCI: It stands for Peripheral Component Interconnect, which is a standard interface for connecting peripherals (such as network adapters, sound cards, graphics cards) to a computer's motherboard. The PCI bus allows for the transfer of data between these devices and the system's CPU.
2. Interrupt: An interrupt is a signal generated by hardware or software that halts the normal execution of a program and directs the CPU's attention to a specific task or event. Interrupts are utilized to handle various events or requests that require immediate attention.
Combining these components, the term "PCI interrupt" refers to an interrupt signal initiated by a peripheral device connected via the PCI bus to notify the CPU of an event within that device, such as data transfer completion, error conditions, or other hardware-specific events.
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