What does IRQ mean What does IRQ mean Spanish Assistant Western Han

The abbreviation of localcontrolunit is LCU, which means local control unit. According to the use, the LCU screen can be divided into many kinds, and the common ones are unit LCU screen, local control panel, hydropower plant LCU control cabinet, public LCU and other names. There are many small hydropower stations in the south, and they are widely distributed.

If it is divided according to the unit LCU, it can be divided into two types: unit LCU and public LCU. The realization of control, monitoring, etc. is mainly based on PLC equipment-based screens. 【Click to test whether I am suitable for learning design】 IT Internet technology training is to Qianfeng Education.

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IRQ The full name of IRQ is Interrupt Request, which means "Interrupt Request" (hereinafter referred to as IRQ). The function of IRQ is to execute the action of hardware interrupt request in the computer we use, which is used to stop the working state of its related hardware, for example, when we print a **, at the end of printing, the system needs to make a corresponding interrupt request to the printer to end the printing operation. In every computer system, an interrupt controller 8259 or 8259a chip (which is now mostly integrated into other chips) controls the interrupt control of each piece of hardware in the system.

There are currently 16 sets of IRQs, and excluding the one set of IRQs used for bridging, there are actually only 15 sets of IRQs that can be called by hardware.

IRQ = Interrupt RequestIn computer science, an interrupt is when the processor receives a signal from hardware or software that an event has occurred and should be noticed, which is called an interrupt.

Normally, after receiving an asynchronous signal from the peripheral hardware (relative to the processor and memory), or a synchronous plexus signal from the software, the processor will perform the corresponding hardware and software processing. Signaling this is called making an Interrupt Request (IRQ).

IRQ is the meaning of interrupting the request. The function of the lead IRQ is to execute the action of hardware interrupt request in the electric huai brain we use, which is used to stop the working state of its related hardware.