DescriptionThe Kawasaki USB to 4 Serial enables your system to have the capability to communicate between theUSB (Universal Serial Bus) port and up to four serial port peripherals. This device meets the USB 1.0/1.1and standard serial port specifications. All the advantages of USB are available to peripherals with serialport interface such as plug and play capabilities. With the USB Standard of high-speed data transfers, thisdevice is ideal for connections to high-speed modems or ISDN terminal adapters. Kawasakis device andsoftware enable the USB interface to be transparent to the peripheral and requires no firmware changes.This makes it possible for peripherals with serial interfaces to easily interface with USB with minimummodifications. This feature is ideal for Legacy applications.Features Advanced 16 Bit processor for USB transactionprocessing and control data processing Compliant with the USB 1.0/1.1 (UniversalSerial Bus) 4 Serial Port 230kbps 128 byte FIFO Plug and Play compatibl feature is ideal for Legacy applications.Features Advanced 16 Bit processor for USB transactionprocessing and control data processing Compliant with the USB 1.0/1.1 (UniversalSerial Bus) 4 Serial Port 230kbps 128 byte FIFO Plug and Play compatible I 2C interface Utilizes low cost external crystal circuitry 1.5K x 16 internal RAM buffer for fastcommunications Debug UART for debug and code development USB host device drivers available Single-chip solution in a 100 pin LQFPBlock DiagramSerialInterface Serial Interface SerialPLL & ClockGenerator16 Bit Address / Data Bus16 Bit Processor Serial Interface Engine RAM (3KB)Timer 0 USB Interface Mask ROM EEPROM Serial InterfaceTimer 1 VP VM CLK X2 SCL SDA Watchdog Timer Debug UART Txd Rxd DTR RTS DCD DSR Txd Rxd CTS RI Serial Interface (4)Channel 1Channel 3Channel 4Channel 2KL5KUSB105Kawasaki LSI 2570 North First Street Suite 301 San Jose, CA 95131 Tel: (408) 570-0555 Fax: (408) 570-0567 www.klsi.com 2Ver. 1. 8USB to 4 Serial PortsKL5KUSB105 App specifications. All the advantages of USB