irq

English - Turkish

Definition of irq in English Turkish dictionary

Related Terms

enter irq level

(Bilgisayar) irq seviyesini girin

English - English

Definition of irq in English English dictionary

Interrupt Request line A line that a device uses to signal the microprocessor with a request

Interrupt Request Lines are electronic pathways that are assigned to specific devices such as modems, keyboards, mice, sound cards, etc These IRQs are assigned and prioritized according to the importance of each device, so that the most important interrupt requests are handled first by the CPU

An IRQ (Interrupt Request) signal sent to the CPU by a I/O device during program execution in order to get the attention of the CPU

Interrupt request - an assigned location where the computer can expect a particular device to interrupt it when the device send the computer signals about the operation For example, when a printer has finished printing, it sends an interrupt signal to the computer The signal momentarily interrupts the compter so that it can decide which processing to do next Since multiple signals to the computer on the same interrupt line might not be understood by the computer, a unique value must be specified for each device and it's path to the computer

In PCs, an IRQ is a signal from a piece of hardware (such as a keyboard or sound card) indicating that it needs the CPU to do something The interrupt request signals run along the IRQ lines to an interrupt controller that assigns priorities to incoming IRQs and delivers them to the CPU Since the interrupt controller expects signals from only one device per IRQ line, if you have more than one device sending IRQ signals along the same line, you get an IRQ conflict that can freeze your machine This is why assigning IRQs to new hardware as you install it is so important--and why it can be such a pain when it goes wrong

A signal from a hardware device, such as a modem or a mouse, indicating that it needs the CPU's attention In PCs, IRQs are sent along specific IRQ channels associated with a particular device It is therefore important to ensure that two devices do not share a common IRQ channel

Interrupt request; refers to a number associated with a serial port on an IBM PC or compatible computer It usually can be changed by flipping a dip switch Occasionally, when you're using a modem connect to the Internet, you may need to adjust the IRQ number assigned to the serial port which connects the modem to avoid conflicts with another device like your mouse

n Interrupt ReQuest A set of 16 lines on the PC Bus, that when asserted by the I/O device, notifies the CPU that the device is in need of servicing IRQ's 2 and 9 are ganged, as this is the way that the PC architecture was extended from the 8 bit 8 IRQ "PC/XT" bus to the 16 bit 286 "AT" bus On most 32 bit protected mode operating systems, peripherals cannot share an IRQ, as the OS would not know which of the two peripherals needed servicing All internal modems installed on Com3 or Com4 are attempting to share an IRQ with Com1 or Com2, respectively

Interrupt Request Unless coded to cooperate with each other, no two parts of a computer can access CPU cycles at precisely the same time The sundry installed devices must therefore send Interrupt Requests to the operating system, asking for the processor's undivided attention In modern computers, IRQ-dependent devices (e g , keyboards, mice, soundcards) vie for interrupt priority among 16 different IRQ slots If you need to install a new IRQ-dependent device but have run out of slots, you're out of luck, Bucky

Interrupt Request (line) A number used to describe an interrupt An IRQ can be any number from 0 to 15 IRQ problems occur because two pieces of hardware try to use the same IRQ

(Interrupt Request) There are 15 IRQs available No two pieces of hardware can share the same IRQ, with the exception of your IDE controllers These are usually 14 and 15 A special card can be installed in your machine to make available more IRQs Microsoft Press's: Hardware lines over which devices can send signals to get the attention of the processor when the device is ready to accept or send information Typically, each device connected to the computer uses a separate IRQ

Interrupt Request -- a hardware request line asserted by a peripheral to indicate that it requires servicing by software The IRQ is handled by the PIC, which then interrupts the processor, usually causing the processor to execute an Interrupt Service Routine (ISR)

Interrupt request number

On a PC, what is an Interrupt Request number?

Interrupt ReQuest Signal from hardware to the CPU An interrupt controller assigns priorities to incoming IRQs and delivers them to the CPU Similar to DMA, if more than one piece of hardware sends IRQ signals on the same line (number), the result is an IRQ conflict that will cause many problems, which means it is imperative that you properly assign IRQ numbers when installing new hardware Plug and Play devices elimiate the need for this

Interrupt Request A request from a HARDWARE device to the PROCESSOR so it can perform a task

A conductor (line) on the internal bus of the computer which can tell the CPU to process certain data

"Interrupt Request Channel" A "request channel" by which a device on the system motherboard, receives access to the CPU

On the ARM family of processors, a normal (priority) interrupt

Interrupt request lines are physical connections between external hardware devices and the interrupt controllers When a device, such as a floppy controller or a printer needs the attention of the CPU, handshaking signals are sent back and forth until a task is completed On PCs there are sixteen IRQ lines numbered IRQ0 through IRQ15 In a particular system, the goal is to configure expansion boards so that each board has its own IRQ line If you have two serial ports on your system, you know that IRQ3 and IRQ4 are taken

Interrupt Request Line - Each device needs an own interrupt in order to function properly Some interruptions are caused as a result that different devices are trying to use the same irq (see 'my computer' devices)

Interrupt Request level In IBM-PCs, a setting given to peripheral devices like soundcards and CD-ROM drives that identifies them to the computer's CPU When the peripheral needs to communicate with the CPU, it will send an interrupt with that value Problems will result if two or more peripherals are set to the same IRQ value

Interrupt ReQuest

route which allows a hardware device to communicate with the processor (Computers)

Hyphenation

IRQ