UHC124

`High performance USB host controller for embedded applications
`Supports USB Specification 2.0 compliant fullspeed (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 "spill" over the USB frame boundaries for easy programming
`Supports "in-place" processing in the data memory
  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 DSP's using WinCE, Linux, VxWorks, Nucleus, Lynx, QNX, pSOS, PowerTV, SMX, ThreadX, VRTX, ITRON, Symbian and MS-DOS operating systems with more in development
`Supports OHCI/UHCI compliant USB host stack
`USB device driver software available including printers, speakers, mass storage, hub, modems, Ethernet, mouse, keyboard, digital camera, video camera, cell phone, STB and PDA with more in development
`Industrial grade devices standard. Military and automotive grade devices available
`Single 3.3V power supply
`64 pin LQFP package

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.

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.