SAN JOSE, Calif., June 27 /PRNewswire-FirstCall/ -- Toshiba America
Electronic Components, Inc. (TAEC)* today announced the availability of a
reference board for its newest 64-bit single-chip MIPS-based(TM) reduced
instruction set computer (RISC) microprocessor, the 400-megahertz
TX4939XBG-400. Designated RBTX4939, the new reference board complies with ATX
specifications and includes most of the interfaces supported by the
TX4939XBG-400. Using the reference board, system designers can evaluate the
basic performance and features of the microprocessor prior to building a
prototype system. In addition, software designers can evaluate software
drivers and develop application programs before a hardware prototype is made.
"Our new RBTX4939 reference board lets our customers get a jumpstart on
evaluation of the TX4939XBG-400 microprocessor and can shorten development
time of TX4939-based systems significantly," said Shardul Kazi, vice president
of the Embedded Processor SoC Business Unit at TAEC.
Overview of the RBTX4939 Reference Board
The RBTX4939 consists of two modules, a CPU module and a base board. The
CPU module includes the TX4939XBG-400 microprocessor, DDR SDRAM and the EJTAG
interface. The base board includes the PCI slots, ATA sockets, Ethernet PHY
(RMII) and audio/video interface socket. Since the CPU module contains enough
circuitry to boot the TX4939XBG-400, customers can reuse the CPU module in
their own designs if desired. Toshiba isolated the very high-frequency
circuitry in the CPU module to free customers from concern about the DDR SDRAM
design and layout when designing their own board to their desired
The CPU module is equipped with the following:
* TX4939XBG-400 microprocessor
* 256Mbyte DDR SDRAM (default), 4 x 512Mbit DDR SDRAM
* Power supply circuit to drive the DDR SDRAM
* EJTAG interface to enable the reading and writing of data
* DIP switch for boot configuration
* Reset, clock, real-time clock (RTC) circuit for the microprocessor
The base board includes two 10/100M Ethernet MACs (TX4939XBG-400's
internal two Ethernet MACs and external PHY), NAND flash ROM (x8bit), two
channels of ATA (IDE) interface, audio (AC-link/I2S) interface, five channels
of PCI slot and a USB 2.0 host chip. In addition, the base board includes NOR
Flash ROM, four channels of RS-232C, a 100Base-TX Ethernet controller for
debugging purposes, a ROM emulator connector, two ISA slots, an outside bus
expansion connector, an input/output controller and a power supply circuit to
supply a stable power supply to other locations throughout the board.
Wind River Systems, Inc. and Monta Vista Software, Inc. will support the
RBTX4939 with board support packages and Linux support packages respectively.
In the interim, Toshiba will prepare a prototype board support package for
Wind River's VxWorks(R) 5.5.1 and a Linux(R) support package for Monta Vista's
MontaVista(R) Linux 3.1. Support for the crypto engine for IPSec/SSL will be
available in the future. EJTAG vendors that will support the TX4939XBG-400
include Yokogawa Digital Computer, Kyoto Microcomputer Company, Wind River,
Inc., Computex and Sophia Systems.
About the TX4939XBG-400 Microprocessor
The TX4939XBG-400 is Toshiba's first embedded Peripheral Component
Interconnect -- (PCI-) based processor to use its industry-leading
90-nanometer process technology and the proprietary TX49/H4 400-megahertz CPU
core. It is suitable for diverse digital consumer applications, including IP
set-top box, home gateways and multimedia appliances. The TX4939XBG-400 has
multiple on-chip peripheral functions, including an 8/16-bit local bus
controller, a highly optimized security engine, serial/parallel video ports,
ATA controllers, a DDR SDRAM controller, a NAND flash controller, Ethernet MAC
controllers (RMII), a PCI controller, a DMA controller, an interrupt
controller, an AC-link controller, serial and parallel ports, timers/counters
and a RTC with battery back-up support. It supports popular operating
systems, including VxWorks from Wind River Systems, Inc. and MontaVista Linux
from MontaVista Software, Inc.
Pricing and Availability of the RBTX4939 Reference Board
Engineering samples of the reference board are currently available with
mass production planned to start in October 2005. Pricing is $3,000.00 each.
About the Toshiba TX System RISC Family of Microprocessors
Toshiba forged an alliance with MIPS Technologies, Inc. in 1989. Today,
Toshiba offers a full family of MIPS-based RISC microprocessors and peripheral
circuits. The Toshiba TX System RISC family consists of 32- and 64-bit
processors available as standard products or as an ASIC tailored for an
embedded design. The family is composed of a range of processors from low-
power consuming to high-performance and includes special functions essential
for the design of embedded products, such as reduced code size and real-time
capability. Toshiba offers access to expert technology professionals for
design questions and application support.
Toshiba also offers TX39/49/99 System RISC Reference Platforms consisting
of hardware, software and system integration tools and documentation based on
products from Toshiba. This modular, configurable approach provides a
ready-to-use bill of materials and will evolve with the customer's design and
industry standards. Customers get a jump on software development and on the
competition. Platforms are available for home-entertainment, IP set-top-box,
industrial-control, mobile and wireless, and other digital consumer
Combining quality and flexibility with design engineering expertise, TAEC
brings a breadth of advanced, next-generation technologies to its customers.
This broad offering includes memory and flash memory-based storage solutions,
a broad range of discrete devices, displays, medical tubes, ASICs, custom
SOCs, microprocessors, microcontrollers and wireless components for the
computing, wireless, networking, automotive and digital consumer markets.
TAEC is an independent operating company owned by Toshiba America, Inc., a
subsidiary of Toshiba Corp. (Toshiba), Japan's second largest semiconductor
manufacturer and the world's ninth largest integrated manufacturer of electric
and electronic equipment. In almost 130 years of operation, Toshiba has
recorded numerous firsts and made many valuable contributions to technology
and society. For additional company and product information, please visit
TAEC's website at chips.toshiba.com. For technical inquiries, please e-mail
Information in this press release, including product pricing and
specifications, content of services and contact information, is current and
believed to be accurate on the date of the announcement, but is subject to
change without prior notice. Technical and application information contained
here is subject to the most recent applicable Toshiba product specifications.
In developing designs, please ensure that Toshiba products are used within
specified operating ranges as set forth in the most recent Toshiba product
specifications and the information set forth in Toshiba's "Handling Guide for
Semiconductor Devices," or "Toshiba Semiconductor Reliability Handbook." This
information is available at www.chips.toshiba.com, or from your TAEC
All trademarks and tradenames held within are the properties of their
respective holders. MIPS-based is a trademark of MIPS Technologies, Inc.
VxWorks is a registered trademark of Wind River, Inc. MontaVista is a
registered trademark of MontaVista Software, Inc. Linux is a registered
trademark of Linus Torvalds.
SOURCE Toshiba America Electronic Components, Inc.