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PDF TDOTG242-xxxx Data sheet ( Hoja de datos )
| Número de pieza | TDOTG242-xxxx | |
| Descripción | Single Chip Host/Peripheral Controller | |
| Fabricantes | Transdimension | |
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Datasheet
March 22, 2004
MU4001, Rev 1.1
TD242LP
USB On-The-Go Low Power, Two Port, Single Chip Host/Peripheral Controller
Description
TransDimension’s TD242LP is a Low Power, single
chip USB Host and Peripheral controller that is the
second controller in the family of integrated low-cost,
high-performance, On-the-Go (OTG) controllers
optimized and specifically designed for embedded
systems, peripherals, mobile communication, and
www.DataShceoent4sUu.mcoemr products. The TD243 was the first controller
in the USB OTG family delivered to the market by
TransDimension. The TD242LP is a combination of a
standard USB Host controller and an OTG Dual-Role
Device controller. The TD242LP enables any
embedded system to operate as a USB Host and
Peripheral, thereby dramatically expanding the degree
of interconnectivity and extending the applicability of
USB into many new areas, especially low power,
mobile markets. Software support for the TD242LP is
available from SoftConnex Technologies, Inc., a wholly
owned subsidiary of TransDimension Inc., and
includes USBLink OTG Stack, ported to a wide variety
of RTOSs, interface code to the TD242LP and USB
device drivers. Peer-to-Peer connectivity is made
simple with the TD242LP since USB connectivity is
achieved without PC intervention. Applications include
mobile and post-PC products such as cellular phone,
palmtop PC, PDA, MP3 players, projectors, and
Internet appliances, to name a few. The TD242LP can
operate in the following modes:
USB On-the-Go Dual-Role Device: One OTG port
plus a standard USB host with one downstream
port
Simultaneous standard USB host with one
downstream port and one USB peripheral
upstream port
Standard USB host with two downstream ports
The host controller in the TD242LP is the only true
transfer level embedded USB host and On-the-Go
controller that can be interfaced directly to most
popular microprocessors and is easily programmable.
The active endpoint and transfer descriptors are
located in the on-chip memory, thus significantly
reducing processor overhead relative to any
comparable product on the market.
The full speed peripheral controller is very flexible and
software configurable, in terms of the active bi-
directional endpoint number (12), type, size, and
buffering mechanism of each endpoint.
Features
Concurrent operation of On-The-Go, Host and
Peripheral ports
Fully compliant with USB On-the-Go specification
and USB Specification Rev. 2.0 for full-speed
(12Mb/s) and low-speed (1.5Mb/s) USB devices
High-performance USB host: Full USB bandwidth
utilization with low load on system microprocessor
without bus mastering
Transaction scheduling and transfer level protocol
implemented in hardware including bandwidth
management, data toggle and retry
Isochronous transfer with loose timing
requirements on the microprocessor
Fast microprocessor access cycle (~25MB/s for
16-bit data bus)
Double/multi buffering support for all four types of
USB transfers
Separate transfer descriptor and data memory
space
Capable of supporting up to 500mA to peripherals
when using external 5V power supply from an
external charge pump
No built-in charge pump leads to smaller die size
and more cost savings
Integrated on-chip pull-up and pull-down resistors
Power saving mode for whole chip and host
controller, and suspend mode for peripheral
controller
Integrated PLL supports external crystal or crystal
oscillators of 6MHz, 12MHz, 24MHz, and 48MHz
Single 3.3V power supply, 2.5V to 3.3 V I/O
(LVCMOS/TTL), 5 V tolerant
Software and hardware Host Negotiation Protocol
Session Request Protocol
Direct interface to microprocessors, RISC, CISC,
and DSPs including but not limited to x86, Intel
XScale & StrongARM, Hitachi SH3, Fujitsu
SPARCLite, NEC and Toshiba MIPS, ARM7,
TransDimension Inc. — Proprietary
1 page  
Data Sheet
TransDimension
TD242LP
TD242LP Reference Designs, Evaluation/Demo Boards and Developer Kits
Reference Designs
The reference designs listed below will include schematics, application notes and instructions on how to interface
to the associated microprocessor of interest. In addition, software will be available for specific operating systems
including: WinCE, Linux, uCLinux, VxWorks, Nucleus, Lynx, QNX, Symbian OS, OS20, OS40, pSOS, PowerTV,
SMX, ThreadX, VRTX, ITRON, MS-DOS operating systems. Contact your local TransDimension representative for
ordering information of additional new reference designs for other microprocessors, CISC, RISC, and DSPs
including Fujitsu SPARCLite, NEC and Toshiba MIPS, Motorola PowerPC, among others.
www.DataSheet4U.com
TD242LP / Intel StrongARM (SA1110)
TD242LP / Intel XScale (PXA250)
TD242LP / Hitachi SH-3 / SH-4
TD242LP / Motorola ColdFire 5272
TD242LP / ARM7
USB On-The-Go Reference Design
USB On-The-Go Reference Design
USB On-The-Go Reference Design
USB On-The-Go Reference Design
USB On-The-Go Reference Design
Evaluation / Demo Kits
BGA242S: Evaluation Board with TD242LP silicon in TF-BGA package
The BGA242S will be a small board (3.0”x 4.8”) that brings out all of the pins necessary to interface with
microprocessors available on the market, today. The BGA242S board will have 2 USB receptacles (one USB OTG
mini-AB and one standard USB host receptacle) ready to connect to any USB peripheral, hub or USB host. The
main components on the BGA242S board will consist of the TD242LP silicon in TF-BGA package, a PC104
interface connector and Vbus distribution/manipulation electronic circuitry. Please see your local TransDimension
sales representative for ordering information and specifications when this product is available.
PCE242: PCI card with TD242LP silicon in TF-BGA package
The PCE242 card and associated documentation will contain everything you need to perform an evaluation of the
functionality and development on the TD242LP chip, in a PCI bus environment. The PCE242 card is a standard
PCI card that may be inserted into any PCI slot, inside a personal computer or laptop docking station.
The PCE242 card may be used in any 33 MHz PCI system and it will automatically adjust to a 3.3V or 5V PCI
environment. The PCE242 PCI card quickly allows customers to start developing software around the TD242LP
controller. TransDimension will supply the drivers necessary to evaluate the PCI104 PCI card and associated
daughter card in both OTG and Host mode simultaneously, under the Microsoft MS-DOS based operating systems
and/or Linux operating systems. Please see your local TransDimension sales representative for ordering
information, specifications and availability.
TransDimension Inc. — Proprietary
5
5 Page 
Data Sheet
64 pin LQFP Mechanical Drawings:
www.DataSheet4U.com
TransDimension
TD242LP
TransDimension Inc. — Proprietary
11
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