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 • • USB 1.1 Specification compliant • Capable of supporting USB HID class, Mass-storage class and Printer class 5V 4-phase 80C32-compatible controller running up to 48 MHz • Embedded 5V~ 3.3V 100mA regulator for USB interface and internal circuit • • Default control endpoint and 15 programmable endpoints • 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. Support up to five USB addresses for compound or composite device • • Four 8bit/12bit ADC with sampling rate up to 24 KHz • Advanced interrupt mechanism to ease the handshake overhead • • • • • 12 MHz C 3.3V USB Interface l Phase Lock Loop 5V–3.3V Regulator 8bit / 48MHz Micro-Controller (80C32 compatible) USB Transceiver USB SIE USB Controller Serial Port Controller (3 Channels) Serial/ PS/2 Port Analog to Digital Analog Signal Input RAM/FIFO ROM Controller General Purpose Programmable Controller DMA Controller 16 extra GPIO pins. 8 of them can be configured as level or edge sensitive triggered interrupt sources. Advanced power management mechanism 32K * 8 embedded ROM 2 16-bit programmable timer 28-pin GPIO Watch dog timer (WDT) Capable of supporting 2-wire EEPROM 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: [email protected] http://www.prolific.com.tw 8/16-bit DMA