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Research on application of USB interface

Ming Ye

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Abstract

Universal Serial Bus (USB), as a communication interface specification, is widely applied to external-device of PC and portable system. The advantages of USB are high transmission speed, high reliability and versatility in application. PDIUSBD12 is a kind of USB interface chip. The function of PDIUSBD12 is introduced briefly. A design example of USB interfaces circuit using a link between 80C51 and PDIUSBD12 is presented. In particular, the hardware circuit and the firmware design of the interface chip are emphasized in this paper.

About this research paper

What this paper is about

Universal Serial Bus (USB), as a communication interface specification, is widely applied to external-device of PC and portable system. The advantages of USB are high transmission speed, high reliability and versatility in application. PDIUSBD12 is a kind of USB interface chip. The function of PDIUSBD12 is introduced briefly. A design example of USB interfaces circuit using a link between 80C51 and PDIUSBD12 is presented. In particular, the hardware circuit and the firmware design of the interface chip are emphasized in this paper.

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Available abstract

Universal Serial Bus (USB), as a communication interface specification, is widely applied to external-device of PC and portable system. The advantages of USB are high transmission speed, high reliability and versatility in application. PDIUSBD12 is a kind of USB interface chip. The function of PDIUSBD12 is introduced briefly. A design example of USB interfaces circuit using a link between 80C51 and PDIUSBD12 is presented. In particular, the hardware circuit and the firmware design of the interface chip are emphasized in this paper.

Key concepts: USB, USB hub, Firmware, eXtensible Host Controller Interface (xHCI), Host controller interface, Interface (matter), PC Card, Embedded system

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