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| PL-2555 Product Brochure V1.0 08/05/02 PL-2555 Hi-Speed USB Docking Controller OVERVIEW The PL-2555, an USB 2.0 docking IC, is consisted of four types of most commonly used peripheral interfaces, namely ATAPI (IDE), Parallel, Serial, and PS/2 interfaces. It is intended to provide an off-the-shelf single chip solution for portable equipments, such as notebook, to extend the peripheral capability via the USB2.0 bus with 480Mbps transfer rate. An USB 2.0 hub is embedded to achieve the most cost-effect goal for multi-peripheral solution. To take advantage of Plug-and-Play, all the peripheral interfaces, except the serial interface, are implemented according to the related USB class specifications: a USB mass storage class for ATAPI devices; a USB printer class for printers; a USB HID device for keyboard and mouse. Since the default drivers are embedded within most of current OS, no extra driver is needed. It is possible to configure the parallel controller to implement the ECP/EPP modes to work with parallel devices other than printers. For some specific applications, the parallel interface can be configured as an extra ATAPI (IDE) interface. FEATURES BLOCK DIAGRAM 12 MHz Crystal Phase Lock Loop 3.3V power 3.3V-2.5V Regulator USB Host * * * * * * * * * * * * Full compliance with the Universal Serial Bus Specification v2.0. On chip USB 2.0 PHY On chip 3.3V-2.5V 150mA regulator for core circuit in 0.25um process version Advanced power management mechanism. Consist of one hub, one ATAPI controller for IDE, one parallel controller for printer port or IDE, 3 serial controllers for one UART and 2 PS/2 ports Conform to USB mass storage class specification Conform to USB Printer Class Specification Conform to USB HID Class Specification Support ATAPI PIO/DMA/UDMA-66 Support serial interface communication up to 1M bps. Option external serial EEPROM interface to store vender-specific information. Package type: LQFP128(TBD) USB2.0 PHY USB2.0 SIE USB2.0 Controller Power Management Hub Serial/PS2 Controller Parallel Controller /ATAPI ATAPI Controller Serial Device Parallel Interface Device ATAPI Device ATAPI Device PS2 Keyboard and Mouse Prolific Technology Inc. 7F, #48, Sec.3, Nan-Kang Rd., Taipei, Taiwan 115, ROC Tel: 886-2-2654-6363 Fax: 886-2-2654-6161 E-mail : sales@prolific.com.tw http://www.prolific.com.tw |
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