General Description
The Kawasaki KL5KUSB221 Controller is a unique single chip solution to interface peripheral devices to the Universal Serial Bus 2.0 (USB2.0) and 100Base-T Ethernet. The KL5KUSB221 has been specifically designed to provide a simple solution to communicate with Ethernet applications as well as other USB peripheral devices.

FEATUREs
• Advanced 16 Bit processor for USB transaction processing and control data processing
• 100Base-T compatibility
• USB interface version 2.0 compliant
• Transceivers and SIE (Serial Interface Engine)
• Internal Clock Generation - Utilizes low cost external crystal circuitry
• MII Physical Layer interface
• 1.5K x 16 Internal RAM buffer
• Remote NDIS for faster data transfer.
• Fully IEEE compliant 100 Mbit/sec Ethernet MAC Layer. Interfaces serially of an external ENDEC PHY.
• UART
• External memory interface
• 100 LQFP package
• Serial Interface for external EEPROM