|SH-Mobile (SuperH Mobile Application Processor)"SH7290"
April 15, 2002 Hitachi, Ltd. (TSE: 6501) today announced the
SH-Mobile (SuperH Mobile Application Processor) series that will allow
high speed processing of multimedia applications for next-generation
mobile phone systems. As the first product, SH7290 is developed. Volume
production will begin from May 2002 in Japan.
This product, connecting with the baseband LSI of the mobile phone
system, is a processor thatprocesses the multimedia applications such
as audio and moving pictures. For the CPU core, it has SH3-DSP ,with
a DSP function for multimedia portable devices, of the 32 bit RISC
microcomputer Super H*1 family.
In addition, peripheral functions and interfaces are provided that
are necessary to the various multimedia applications. By using this
product, it is possible to achieve high speed processing of applications
without processing load on the baseband LSI. In addition, since the
applications can be developed independently of the communication processing
of the baseband LSI, next-generation mobile phone systems with variegated
multimedia applications installed can be easily developed in a short
time. Further, platform as well as middleware is available for application
development, so that software development can be done efficiently
and in a short period.
Mobile phone systems of recent years go beyond simply the talk function,
and have multifunction with e-mail and Internet browser functions
installed. Next-generation mobile phone systems are witnessing even
higher multifunction with variegated applications installed starting
with games and motion picture transmission. Up to now, each application
processing has been executed on baseband LSI for the communication
processing. So, the baseband LSI had to provide the necessary performance
for communication processing as well as the performance necessary
for application processing. In order to run the sophisticated multimedia
applications of the future smoothly, there were problems such as how
to ensure the great leap in improvement of the LSI performance. Further,
the baseband LSI programs would have to be able to process both next-generation
communications and applications for multimedia, making the programs
very large in content and complex. So, system development would become
complexly, and development time, including time for program debugging,
would increase causing an increase in development costs. Also, in
Japanese market mobile phones are seeing a reduction in model-change
cycle to about half-year. Thus, it can be expected that an extension
in development lead time would lead to problems such as difficulty
in timely introduction of products in the market.
To counter this problem, Hitachi has prepared a processor dedicated
to application processing separate from the baseband LSI. HItachi
sees this as a solution to make system development easy and to realize
performance improvement and has developed the SH-Mobile series. SH7290
as a first product includes the SH3-DSP core, suitable for multimedia
portable devices such as digital still camera, of the SuperH family
and runs at 133MHz frequency. Its features are explained below.
|| It can connect to
any baseband LSI through a dedicated interface and can be applied
to mobile phones with different communication method.
Through the dedicated interface this product can easily connect
to various kinds of baseband LSI. Due to this, the application-processing
portion can be separated as part of the system structure, and
it becomes possible to independently develop complicating multimedia
The baseband LSI will recognize this product to be equivalent
to SRAM rather than as a processor. So, control from the baseband
LSI is simple and it is possible that the total system is developed
rapidly and easily. And, since the communication processing is
executed by baseband LSI it can be used with mobile phone systems
with different telecommunications systems such as PDC (Personal
Digital Cellular) in Japan or t GSM (Global System for Mobile
Communications) in Europe and also in next-generation mobile phones
such as CDMA2000 1x*2 or W-CDMA*3
||Realization of high-speed
application processing due to built-in large capacity memory.|
For application processing, a 128 KB large capacity RAM is in-built,
which can be accessed in 1 cycle. In addition, 32KB CPU cache
memory, which is the maximum capacity in the SuperH family, is
installed. Due to installation of these large capacity memories,
it is enable high-speed execution of applications such as Java*4
programs, moving picture processing with MPEG-4*5
and audio processing with MP3*6
|| Realization of low
power consumption so that increase of power consumption in system
by addition of this product is deterrent.|
In order to increase the standby time of the mobile phone system,
a standby mode function is installed so that power can be shut-off
for each module separately. With this function, powers of those
circuits that need not be activated are shut off while standing-by;
thus low standby current can be achieved of approximately 5 A
(typ.). Due to this, addition of this product does not lead to
increase in mobile phone system power consumption.
|| Various peripheral modules and interfaces
installed. In addition, with development platform, application
programs development is also easy.
This product has various peripheral modules and interfaces incorporated
that are required for next-generation mobile phones such as the
hardware motion picture accelerator that enables to run high-speed
processing of moving pictures, interface that connects directly
to camera module , and interface with AND type and NAND type flash
memory. Further, a development platform, with keypad and small
size LCD panel and also an extremely small size camera, is available.
So, it is possible to realize quick and easy development of various
multimedia application programs.
|| Quick development of multifunction
applications is possible due to abundant multimedia middleware.|
Abundant middleware has been prepared in cooperation with partner
vendors in addition to MPEG-4, JPEG and MP3 etc., which are necessary
in order to run multimedia applications. For example, ACCESS CO.,
LTD.'s 'Compact NetFront'*7
for browser, Aplix Corporation's 'JBlend'*8
for embedded Java platform, HI CORPORATION, 'Mascot
Capsule Engine'*9 for 3-dimentional
display, OFFICE NOA Inc.'s 'Nancy Codec'*10for
moving pictures compression/decompression technology, NAVITIME
JAPAN CO., LTD.'s high-speed vector map drawing engine 'Mviewer'*11
for drawing maps, are supported. Due to these, the user is able
to develop sophisticated applications, depending on the objectives,
in a short time.
The packages used are small two type CSP packages
that are 0.65 mm pin pitch CSP-240 and 0.5 mm pin pitch CSP-256.
By using this product, it will be possible to develop
in short time next-generation mobile phone systems with multimedia
applications, and development costs can be reduced. Further, it can
respond quickly toapplication development and changes arising from
diversification in future services or changes in service contents.
In future, Hitachi will promote this product to
be the de facto standard device in mobile phone market. Hitachi will
also develop and expand the product line-up meeting the needs of the
market such as multi-chip modules, performance-improved products and
function-strengthened products in line with further increases in function
of mobile phone systems.
||Super H is a trademark of Hitachi Ltd.
||CDMA2000 1x: One of the telecommunication
methods for 3rd generation mobile phones using the CDMA (Code
Division Multiple Access) system
||W-CDMA (Wideband Code Division Multiple
Access): One of the telecommunication methods for 3rd generation
mobile phones communication system
||Java and Java related trademarks and
logos are trademarks of Sun Microsystems, Inc. USA
||MPEG-4 (Moving Picture Experts Group
phase 4): One of the specifications for compressing moving pictures.
||MP3 (MPEG-1 Audio layer 3): One of the
methods for audio data compression
||Compact NetFront is a registered trademark
or trademark of ACCESS CO., LTD. in Japan or other countries.
It is a high-speed micro-browser for small-sized information portable
||JBlend is a trademark or registered
trademark of Aplix Corporation in Japan or other countries. It
is a product name for highly expansive embedded Java platforms.
||Mascot Capsule is a registered trademark
of HI CORPORATION in Japan. It is a software engine to run real-time
3-D pictures on mobile phone equipment.
||Nancy Codec is a CODEC developed by
OFFICE NOA Inc. for compression and expansion processing of moving
pictures with light load on CPU.
||Mviewer: Products of NAVITIME JAPAN
CO., LTD. It is a light viewer that can be available on mobile
terminals with small-size memory capacity such as a mobile phone.
< Typical Applications >
||Next generation mobile phone terminals
with multimedia applications installed
< Prices in Japan >(For Reference)
||Unit Price for 10,000 Unit Lot
< Specifications >
*1: MultiMediaCard is a trademark of Infineon Technologies
AG, Germany, and is licensed to MMCA (MultiMediaCard Association). Hitachi
is an MMCA Board Member. http://www.mmca.org/
||Internal :1.4 to 1.6 V
, External: 2.7 to 3.6 V
| On-chip RAM
|For X/Y memory (DSP)
|On-chip peripheral functions
DMAC 6 channels
USB function ( USB
specification v1.1 supported)
Dedicated interface (Connect to baseband LSI etc.)
Video I/O (direct
interface to camera module)
Key scan interface
with FIFO 2 channels
interface 2 channels
||240 pin CSP
13mm 0.65mm pin pitch)
|256 pin CSP
11mm 0.5mm pin pitch)