Product Brief
TD1120
USB On-the-Go Full-Speed Host and High-Speed Peripheral Controller
Description
Features & Benefits
TransDimension’s TD1120 is the market’s first single-chip
USB On-the-Go (OTG) controller that incorporates a Full-
Speed host and a High-Speed peripheral controller onto
single silicon chip. It enables embedded systems to
Single-chip USB OTG Full-Speed host and High-
Speed peripheral controller:
o Replaces two-chip solution
o Reduces system cost and board space
Minimizes system design complexity and power
consumption
operate as
a
USB host and peripheral, thereby
o
dramatically expanding the degree of interconnectivity and
extending the applicability of USB into many new areas,
especially in mobile communication, consumer electronics
o Simultaneous host and peripheral operation
Fully compliant with USB Specification Rev. 2.0 and
and printer applications.
The combination of the
USB On-the-Go specifications.
TD1120’s High-Speed peripheral and Full-Speed host
controller, enables users to perform high speed USB data
transfer for peripheral connectivity when connected to a
host device, and operates at full speed in host mode
operation to maximize system battery life in a mobile
environment.
Allows for flexibility of port configurations including:
o 3 ports: 2 Full-Speed host and 1 High-Speed
peripheral
o 2 ports: 1 Full-Speed host and 1 OTG port
Single 3.3V power supply, flexible I/O voltage of 2.5V
to 3.3 V (LVCMOS/TTL) to interface to a wide range
of MCUs
In mobile applications, the TD1120 enables high speed
PC synchronization to reduce data file transfer time when
it operates as a peripheral and in host mode it enables the
system to connect to a wide range of USB devices such
as thumb drives, keyboard, mouse, digital still camera
Low power operation, suitable for mobile applications:
o 40mA (max) for host operation
o 80mA (max) for peripheral operation
(DSC), with low power operation.
applications include smart phone, PDA, MP3 player,
portable media player, digital photo album, and GPS.
These mobile
Power saving mode for whole chip and host controller,
and suspend mode for peripheral controller
Integrated on-chip charge pump, supports up to
100mA of current, enables support for broad range of
USB devices
The TD1120 is well suited for PictBridge printers. It
enables high speed data file transfer between PC and
printer, while utilizing the host port, it adds PictBridge
printing capability to the printer to support direct photo
printing from a DSC. The TD1120 replaces existing two-
chip solutions by combining discrete host and peripheral
controller into one single chip solution, thus reducing
system cost, board space, minimizing design complexity,
and lowering power consumption.
Small footprint, board space saving:
o 84-ball TF-BGA (7x7mm) package
o 100-pin LQFP (12x12mm) package
Memory mapped interface can gluelessly interface to
the system bus of most popular microprocessors,
RISC, CISC, and DSPs including but not limited to
x86, Intel XScale & StrongARM, ARM7, ARM9,
Motorola PowerPC, ColdFire and Dragonball among
others
The TD1120 allows for multiple port configurations,
simultaneous host and peripheral operations, and flexible
operating modes. The following modes are supported:
Fast microprocessor access cycle and double/multi-
buffering support for all four types of USB transfers
• 1 OTG + 1 Host: One OTG port and one standard
Two DMA (slave) channels support for peripheral
host port
controller, lowers system CPU utilization
• 1 Peripheral + 2 Host: One High-Speed USB
Integrated PLL supports external crystal or crystal
peripheral port and two Full-Speed host ports
oscillators of 12MHz and 30MHz, for system flexibility
TransDimension offers a breadth of software products and
experience, the Softconnex software solution is ported to
a wide variety of RTOSs, interface code to our controllers,
and USB device drivers to provide a complete, proven
embedded USB solution.
8K bytes of on-chip SRAM, optimized buffer size for
performance/cost
Allows up to 8 bi-directional endpoints and transfers to
enable support for multi-function systems
Configurable software and hardware Host Negotiation
Protocol (HNP) and Session Request Protocol (SRP)
Transaction scheduling and transfer level protocol
implemented in hardware including data toggle, retry,
and bandwidth management for high performance
TransDimension Inc. — Proprietary
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