All IPs > Graphic & Peripheral > Interrupt Controller
In modern electronic systems, managing and prioritizing multiple tasks and processes effectively is crucial. An interrupt controller plays a pivotal role in this by managing the interrupts that require the processor’s attention immediately. This category of semiconductor IPs provides essential functionalities to handle various interrupts efficiently, ensuring that electronic devices operate smoothly and responsively.
Interrupt controller semiconductor IPs are integral components within microcontrollers, microprocessors, and system-on-chips (SoCs). They help in orchestrating seamless communication between the processor and peripheral devices by managing interrupt signals. These IPs allow for the prioritization and queuing of interrupt requests, ensuring that critical tasks are addressed promptly. The efficient operations of multimedia devices, network processors, and graphic subsystems often rely on sophisticated interrupt controllers to handle INTERRUPTs with minimal latency.
The products within this category are designed to enhance performance, reliability, and power efficiency of electronic devices. In complex devices where multiple peripheral components are integrated, such as smartphones and tablets, or in high-performance computing systems, interrupt controllers ensure that system resources are used optimally without unnecessary delays. Developers can select from a variety of interrupt controller semiconductor IPs tailored to different applications, ranging from simple designs for low-power devices to advanced solutions for high-performance systems.
Moreover, these semiconductor IPs are vital for developers seeking to build scalable systems able to handle increased processing demands. By employing robust interrupt control mechanisms, systems can be built to adapt to a range of operational conditions, enhancing both user experience and system longevity. Thus, the right choice of interrupt controller IP can significantly influence the overall efficiency and effectiveness of electronic products across various industries.
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The RISC-V Platform-Level Interrupt Controller (PLIC) IP stands as a versatile and configurable solution for managing extensive interrupt sources in systems utilizing RISC-V processors. It aligns with the RISC-V PLIC standard, ensuring a consistent integration experience across varied processor configurations. This controller manages a broad range of 31 to 1023 interrupt sources and supports multiple processor targets, with configurations allowing between 1 to 32 target hart contexts. Its structure enables meticulous control over interrupt request properties, including sensitivity and synchronicity, enhancing system responsiveness. The IP uses an AHB-Lite interface to configure priority settings and interrupt management, enhancing its applicability across diverse environments. Its design ensures secure allocation, suitable for both single and multiprocessor applications, supporting complex interrupt schemas across various execution levels. For single-processor setups, the PLIC connects efficiently to AHB matrices, collecting and managing interrupt requests from both AHB and APB devices. In tandem, it manages distributed interrupt requests across a multiprocessor system, ensuring that efficient priority handling and claims are made by the correct processor target, maintaining system-wide coordination and control.