UHC124 Datasheet, PDF(1/6 Page) List of Unclassifed Manufacturers – High Performance Four-Port Embedded USB Host Controller

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

UHC124 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – High Performance Four-Port Embedded USB Host Controller

Product Brief

January 30, 2002

UHC124

High Performance Four-Port Embedded USB Host Controller

Description

TransDimensionâs UHC124 is a four-port, single chip

USB Host controller that is the first of a family of

integrated low-cost, high-performance controllers

optimized and specifically designed for embedded

systems, mobile communication, and consumer

products. It is a non-PCI controller that supports USB

Specification Rev. 2.0 compliant full-speed (12Mb/s)

and low-speed (1.5Mb/s) USB devices. It is the only

non-PCI controller that has been proven to run at USB

full speed, even running under a full USB stack. The

UHC124 controller enables an embedded system to

function as a USB Host, dramatically expanding the

degree of interconnectivity and extending the

applicability of USB into many new areas. In addition

to silicon, development kits, USB Host Stack, device

drivers for most products, and interface code to the

UHC124 for numerous RTOSâ are available via our

wholly owned subsidiary, SoftConnex Technologies,

Inc.

The UHC124 has unique, patent-pending features that

are indispensable for achieving high data throughput

and low interrupt rates. It is the only one on the market

that is designed from the ground up for embedded

applications with features like batch processing,

multiple interrupt modes, separate data and descriptor

memory, and double buffering. It is optimized for cost,

performance and ease of development. The

software/hardware co-designed architecture enables

high performance while maintaining simplicity and

flexibility that are critical for embedded applications. It

can be interfaced to CISC or RISC microprocessors,

microcontrollers, or digital signal processors (DSPs)

and is ideal for providing USB host functions to a wide

range of applications including mobile devices, cell

phones, PDAs, point-of-sale systems, test equipment,

set-top boxes, Internet appliances, as well as serving

as an interface for USB to Bluetooth controllers.

The complete solutions offer the advantages of

shortened time-to-market, simplified procurement and

technical support from one source.

Features

High performance USB host controller for

embedded applications

Supports USB Specification 2.0 compliant full-

speed (12Mb/s) and low-speed (1.5Mb/s) USB

devices

Patent pending design

Full USB bandwidth utilization with low load on

system microprocessor

Standard 8-bit microprocessor bus interface

2 Kbyte data memory

Supports all four types of USB transfers (control,

bulk, interrupt, and isochronous with maximum

packet size of 1,023 bytes)

Supports batch processing of up to 16 USB

transactions without interrupting the MCU

Supports scheduling of transaction batches that

may âspillâ over the USB frame boundaries for

easy programming

Supports âin-placeâ processing in the data memory

â used for applications requiring peer-to-peer data

transfer between USB devices

Supports double buffering for all USB transfers

Hardware generated Start of Frame (SOF)

Fully qualified, market proven root hub with four

ports and integrated analog transceivers.

Individually controlled power-on and over-current

circuit for each of the four downstream ports

Power management with host suspend, remote

wakeup, and power saving modes

6 MHz crystal/oscillator to reduce cost and EMI

Evaulation/development kit available including C

source code of the programming interface library

and an interactive USB host controller Exerciser

Embedded RTOS software available for popular

microprocessors, RISC, CISC, and DSPâs using

WinCE, Linux, VxWorks, Nucleus, Lynx, QNX,

pSOS, PowerTV, SMX, ThreadX, VRTX, ITRON,

Symbian and MS-DOS operating systems with