USB2517-JZX-TR Integrated Circuits (ICs)

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Controllers in the USB2517-JZX-TR Application Field and Their Working Principles

The USB2517-JZX-TR is a USB 2.0 Full-speed device from Microchip Technology. It is a highly integrated, low cost controller designed for applications requiring data streaming capabilities. This article will explain the application field and working principles of the USB2517-JZX-TR controller.

Application Field

The USB2517-JZX-TR controller is primarily used in the following applications:

• High-speed streaming applications, such as video and audio streaming.
• Mass storage applications that require high data throughput.
• Low-speed peripheral devices, such as digital cameras, audio players and personal digital assistants.
• Data acquisition and control systems.
• Data/voice communications.
• Security systems.
• Wireless USB-enabled devices.

The USB2517-JZX-TR controller offers advanced features to enable high speed, low latency and reliable data transfer. These features include fast protocol switching, HCI based message passing, isochronous transfer, and an integrated transceiver.

Working Principle

The USB2517-JZX-TR controller is a low-level device compatible with the USB 2.0 Full-speed specification. It consists of a modem section and a controller section. The modem section is responsible for modulation and demodulation of the data signals. The controller section performs all protocol-related tasks, such as packetizing, crc check-summing, and error reporting. The controller section also maintains the link parameters and provides the link state information to the USB host.

The USB2517-JZX-TR controller consists of a receiver part, a transmitter part, and a link management part. The receiver part receives USB data packets and stores them in the internal SRAM. The transmitter part transmits the data packets to the destination. The link management part monitors the link status, manages link errors, and initiates retransmissions. It also handles USB packet fragmentation and re-assembly.

The USB2517-JZX-TR controller also includes circuitry to handle low-level USB commands, such as reset, suspend, and polling. This allows the USB host to control and configure the controller for various data streaming applications.

Conclusion

The USB2517-JZX-TR is a low cost controller designed for applications requiring data streaming capabilities. It offers advanced features to enable high speed, low latency, and reliable data transfer. It consists of a modem section and a controller section, and includes circuitry to handle low-level USB commands. This article has given an overview of the application field and working principles of the USB2517-JZX-TR, and is suitable for those who need to understand how the controller works in order to successfully implement this technology in their applications.

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