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| PL-2351 Product Brochure V1.0 04/12/02 PL-2351 USB Device Controller Overview PL-2351 is a single chip full-speed USB device controller, including an enhanced 8032 core, an intelligent USB core, 4-channel 8bit/12bit ADC and a variety of smart I/O ports via programmable DMA interface. With diversity of IO ports, PL-2351 offers an optimal solution for a list of extensive peripherals such as printers, keyboards, mice, modems, hard disks, CMOS sensors, microphones, etc. Flexible endpoint configuration including its buffer partition lets users easily establish control, isochronous-in/out, bulk-in/out or interrupt-In/out pipes to communicate with USB host. In addition, with the capability of supporting up to five USB addresses, it is possible to configure the chip as a composite or a compound device. Designed to be flexible, high performance, and easy-to-use, PL-2351 can help customers easily implement their products. Features Block Diagram 5V 12 MHz C l Phase Lock Loop 5V-3.3V Regulator USB Transceiver USB SIE USB Controller 3.3V USB Interface * * * * * * * * * * * * * * * * * USB 1.1 Specification compliant 4-phase 80C32-compatible controller running up to 48 MHz Capable of supporting USB HID class, Mass-storage class and Printer class Embedded 5V~ 3.3V 100mA regulator for USB interface and internal circuit Default control endpoint and 15 programmable endpoints Support up to five USB addresses for compound or composite device 4K SRAM and Memory Access Unit (MAU) to configure each endpoint's buffer partition Programmable-DMA (PDMA) controller supports generic parallel interface such as CMOS Sensor, EPP/ECP, ATAPI, 8237 DMA, etc. Three configurable serial ports. Each serial port can be configured as a generic serial port up to 1.25Mbps or a PS2 host. Four 8bit/12bit ADC with sampling rate up to 24 KHz 16 extra GPIO pins. 8 of them can be configured as level or edge sensitive triggered interrupt sources. Advanced interrupt mechanism to ease the handshake overhead Advanced power management mechanism 32K * 8 embedded ROM 2 16-bit programmable timer Watch dog timer (WDT) Capable of supporting 2-wire EEPROM 8bit / 48MHz Micro-Controller (80C32 compatible) Serial Port Controller (3 Channels) Serial/ PS/2 Port RAM/FIFO Analog to Digital ROM Controller Analog Signal Input General Purpose Controller Programmable DMA Controller 28-pin GPIO 8/16-bit DMA 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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