Product Brief
January 30, 2002
UHC124
High Performance Four-Port Embedded USB Host Controller
Description
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TransDimension’s 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 RTOS’ are available via our
wholly owned subsidiary, SoftConnex Technologies,
Inc.
ꢀ Standard 8-bit microprocessor bus interface
ꢀ 2 Kbyte data memory
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packet size of 1,023 bytes)
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easy programming
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transfer between USB devices
ꢀ Supports double buffering for all USB transfers
ꢀ Hardware generated Start of Frame (SOF)
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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.
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ꢀ 6 MHz crystal/oscillator to reduce cost and EMI
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and an interactive USB host controller Exerciser
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WinCE, Linux, VxWorks, Nucleus, Lynx, QNX,
pSOS, PowerTV, SMX, ThreadX, VRTX, ITRON,
Symbian and MS-DOS operating systems with
more in development
The complete solutions offer the advantages of
shortened time-to-market, simplified procurement and
technical support from one source.
ꢀ Supports OHCI/UHCI compliant USB host stack
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Features
Ethernet, mouse, keyboard, digital camera, video
camera, cell phone, STB and PDA with more in
development
ꢀ eHmigbheddpeedrfoarpmpalicnacteionsUSB host controller for
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devices
ꢀ Single 3.3V power supply
ꢀ 64 pin LQFP package
ꢀ Patent pending design
TransDimension Inc. — Proprietary
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