General Description
The Kawasaki KL5KUSB122 Controller is a unique single chip solution that serves as a bridge between USB and Ethernet interfaces. The USB side of the controller supports both USB Host and Device modes. The KL5KUSB122 has been specifically designed to provide Ethernet connectivity to USB devices. This has been accomplished by its highly integrated functionality. The USB controller consists of a central 16-bit processor, mask ROM, RAM buffer, clock generator, Ethernet interface, UART, IRQ, Watchdog Timer, Serial interface, External Memory Interface and SPORT Interface.

FEATUREs
• Advanced 16 Bit processor for USB transaction processing and control data processing
• 10/100BaseT compatibility
• USB Host or USB Device interface ver. 1.0/1.1 compliant
• Transceivers and SIE (Serial Interface Engine)
• Internal Clock Generation - Utilizes low cost external 12MHz crystal circuitry
• MII Physical Layer interface
• Remote NDIS for faster data transfer.
• Debug UART
• External memory interface
• 100 LQFP package
• Serial Interface for external EEPROM
• 1.5K x 16 Internal RAM buffer