KL5KUSB121

USB to 10/100 Ethernet Controller

Kawasaki LSI

1

Ver. 1.1

PRELIMINARY

General Description

The Kawasaki KL5KUSB121 Controller is a unique single chip solution to interface peripheral

devices to the Universal Serial Bus (USB) and Ethernet. The KL5KUSB121 has been specifically

designed to provide a simple solution to communicate with Ethernet applications as well as other

USB peripheral 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. The SIE (Serial Interface Engine) is fully compatible with the USB specification.

Our powerful internal processor enables Remote NDIS (Network Drive) which gives compatibility

with next generation operating systems and faster data transfer. This USB to Ethernet controller

is ideal for LAN (Local Area Network), HAN (Home Area Network), Cable Modem, Set Top

Boxes, or Mobile Networking applications.

Features

•

Advanced 16 Bit processor for USB transaction

processing and control data processing

•

10/100Base-T compatibility

•

USB 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

•

1.5K x 16 Internal RAM buffer

•

Remote NDIS for faster data transfer.

•

Fully IEEE 802.3 compliant 10 Mbit/sec

Ethernet MAC Layer. Interfaces serially of

an external ENDEC PHY.

•

UART

•

External memory interface

•

LQFP package

•

Serial Interface for external EEPROM

Block Diagram

RAM

(3KB)

Timer 0

USB Interface

16 Bit Address / Data Bus

Data -

Data +

Serial

Interface

Engine

Mask ROM

(8KB)

Timer 1

Watchdog

Timer

16 Bit

Processor

UART

Txd

Rxd

10/100 Mb/s

Ethernet

Interface

MII PHY

Interface

EEPROM

Serial Interface

DIO

CK

SRAM Interface

A15-0

D15-0

Cntrl .

X2

X1

Clock Gen. &

Internal PLL

IRQ

INT 1-0

2