Note: IRQ9, IRQ10, IRQ11, IRQ12, IRQ15, IRQ3, IRQ4, IRQ5 and IRQ7 can be redirected to PCI add-in boards.

The PCI standard has a 4-IRQ limitation. Some PCI add-in boards do not require IRQs. Some can share an IRQ with another board of the same model and manufacture. Check the add-in board’s docmentation for IRQ information.

Direct Memory Access

The system supports seven DMA channels:

Controller 1

Controller 2

 

 

Channel 0 - Spare

Channel 4 - Cascade

 

for Controller 1

 

 

Channel 1 - SDLC

Channel 5 - Spare

 

 

Channel 2 - Diskette

Channel 6 - Spare

 

 

Channel 3 - Spare

Channel 7 - Spare

The first DMA controller holds channels 0 through 3. These channels support 8-bit data transfers between 8-bit I/O adapters and 8- or 16-bit system memory. Each channel can transfer data in 4 KB blocks.

The second DMA controller holds channels 4 through 7. Channel 4 cascades channels 0 through 3 to the microprocessor. Channel 5, 6 and 7 support 16-bit data transfers between 16-bit I/O adapters and 16-bit system memory. These DMA channels can transfer data throughout the 16 MB system-address space in 128 KB blocks.

Channel 5, 6 and 7 cannot transfer data on odd byte boundaries.

SB-6862

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Image 27
Intel SB-6862 manual Direct Memory Access

SB-6862 specifications

Intel's SB-6862, part of the 11th generation Core family, represents a significant advancement in processor technology. Designed primarily for the mobile platform, the SB-6862 showcases Intel's relentless pursuit of performance, efficiency, and versatility, catering to a wide range of applications, from demanding gaming scenarios to everyday computing tasks.

One of the primary features of the SB-6862 is its improved architecture, which incorporates Intel's Willow Cove microarchitecture, delivering a marked increase in instructions per clock (IPC) compared to its predecessors. This upgrade not only enhances single-thread performance but also allows for better handling of multi-threaded tasks, making the SB-6862 an excellent choice for professionals and gamers alike.

The processor comes equipped with Intel's integrated Iris Xe graphics, offering superior visual performance suitable for both creative professionals and casual gamers. This integrated GPU supports high-resolution displays and advanced visual effects, providing a seamless experience for graphics-intensive applications without the need for a dedicated graphics card.

Furthermore, the SB-6862 supports Thunderbolt 4 and USB4 technologies, enabling ultra-fast data transfer rates and versatile connectivity options. Users can enjoy the convenience of connecting multiple high-speed peripherals, such as external storage devices and display monitors, with ease. This level of connectivity enhances overall system performance, making it an ideal choice for power users.

In terms of thermal management, the SB-6862 employs Intel's adaptive thermal management technologies, which optimize performance based on thermal conditions. This feature ensures that the processor can deliver peak performance while maintaining a manageable temperature, thereby extending the lifecycle of the device.

Another notable characteristic is the support for DDR4 and LPDDR4x memory, allowing for faster data access and improved performance in memory-intensive applications. The SB-6862 also implements Intel's deep learning technologies, facilitating AI-based features that enhance the overall user experience by providing smarter system capabilities.

In conclusion, the Intel SB-6862 distinguishes itself with its cutting-edge features, improved performance, and advanced technologies. Its combination of high IPC, integrated graphics prowess, extensive connectivity options, and robust thermal management makes it a compelling choice for users seeking a reliable and powerful mobile processor. Whether for gaming, content creation, or everyday multitasking, the SB-6862 stands out as a superior option in the crowded processor market.