PEX8632-BB50RBI F Uncategorized

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The PEX8632-BB50RBI F is a Pericom device, a single-chip USB 3.0 to PCI Express (PCIe) bridge. It provides the necessary programming and control logic to handle USB 3.0 packet transfers over a PCIe bus. This device is designed to facilitate the connection between USB 3.0 and PCIe-based endpoints in a wide range of applications, such as display adapters, solid state drives, USB 3.0 host controllers and PC motherboards. To understand the full functionality of the PEX8632-BB50RBI F, it is important to understand its application field and working principle.

Application Field

The PEX8632-BB50RBI F is used primarily in applications requiring a high-speed connection between USB 3.0 and PCIe-based endpoints. It offers an ideal solution for applications such as external storage devices, external storage systems, disk drives, PC docking stations, and consumer embedded products. The device also supports multi-function dock-type systems in which a single connection between an endpoint device and a host PC is used to enable multiple USB peripherals and offload the system bandwidth in a USB bridge application.

Operating Principle

The PEX8632-BB50RBI F operates on the principle of PCIe to USB 3.0 bridge operation. The device serves as an interface between the USB 3.0 and PCIe buses, which allows for full data transfer throughout the USB 3.0 and PCIe ports. The device functions as an USB 3.0 host controller, translating PCIe data packet requests into USB 3.0 transactions. The device also handles the communication between the endpoint device and the USB 3.0 port of the host PC.

The PEX8632-BB50RBI F operates on the principles of packet-based communications. It embeds a USB 3.0 protocol engine that is able to recognize USB 3.0 properties and other bus properties such as data packet sizes, data packet types, and header formats. It then performs an appropriate protocol operation to ensure that data is properly routed. The device also manages the USB 3.0 SuperSpeed control, status and Power Delivery.

Power Management

The PEX8632-BB50RBI F also offers a power management feature to maintain low power while in use. The device contains a power management circuitry that detects the output voltage and current consumption to ensure optimal power consumption. This feature allows the device to remain in an idle state until the next USB 3.0 host connection is detected, thereby preventing unnecessary power usage.

Conclusion

In summary, the PEX8632-BB50RBI F is a high-speed USB 3.0 to PCI Express bridges designed for a variety of applications. The device facilitates the connection between USB 3.0 and PCIe-based endpoints, while also supporting multi-function dock-type systems. Furthermore, the PEX8632-BB50RBI F is equipped with power management capabilities, ensuring optimal power consumption while in use. Furthermore, the device utilizes a packet-based communication protocol to ensure the effective routing of data between the USB 3.0 and PCIe buses.

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