The is part of the chipset used in Intel Atom E6xx-series processors, typically used in low-power, embedded systems, and mobile devices. The PCI Host Bridge is a critical component that helps the processor communicate with other parts of the system, such as the memory, storage, and peripherals. It manages the data flow between the processor and PCI devices (like graphics cards, network cards, and other hardware components that use the PCI or PCI Express interface).

In terms of Windows drivers, the Intel(R) Atom(TM) Processor E6xx PCI Host Bridge - 4114 driver enables proper communication between the processor's chipset and the operating system, ensuring that all hardware components function correctly.