I-51-01E-015

ITRON Newsletter No.15
ITRON Technical Committee, TRON Association

Katsuta Building 5F, 3-39, Mita 1-chome, Minato-ku, Tokyo 108, JAPANTEL: (03) 3454-3191
FAX: (03) 3454-3224

The ITRON Registration System for
Products and Applications

from a large number of users and re ect these in thenal version. The ocial release is expected to comearound the end of this scal year (end of March 1996).
The ITRON3.0 compatibility checksheets are atool to help users compare di erent implementationsof the ITRON3.0 speci cation. The main use is fordetermining the amount of work involved in porting
application programs from one system to another. Using these checksheets, for example, the user can get
an accurate grasp of the extent to which an OS implements optional speci cations or other speci cations
that are not mandatory for all implementations. The
checksheets are designed to simplify this analysis considerably. Moreover, they can be read into a computer,then converted into tabular format so the functions ofan OS can be listed in readily grasped form, or the differences among two or more OSs can be compared ata glance. After the ocial release, we are planning torequire that ITRON3.0-speci cation products registered in the ITRON Registration System for Products
and Applications be accompanied by the completedchecksheets so these can be provided to users.
The beta version of the checksheets and samples of how they are to be lled in are available
on the Internet by anonymous ftp at utsun.s.utokyo.ac.jp [133.11.11.11]. The les are located at/TRON/ITRON/CheckSheet. Questions or comments regarding the checksheets should be directedto the ITRON Technical Committee. We are further
planning to distribute these beta les by oppy disk
at the ITRON Open Seminar scheduled for July 20,
and to give a summary explanation.

The product listed in another page was newly registered in the period through June 1, 1995. Previously
registered products are listed in ITRON NewsletterNos.1 to 3, 5 to 7, and 9. Details of the product registration system can be obtained by contacting theTRON Association.

ITRON-related Publications
Listed in another page are the publications preparedand issued by the ITRON Technical Committee as ofJune 1, 1995. The ITRON-ITRON Standard Handbook is a one-volume compilation of ITRON (Ver2.0) and ITRON2 speci cations. Each of the publications below can be obtained directly from the sourcesindicated.
The latest version of ITRON3.0 is now Ver
3.02.00. Changes made since the ITRON3.0 Standard Handbook was released (Ver 3.00.00) are noted
in Newsletter No.5 and No.11, as well as in ITRON
Standard Guidebook 2.
The recently issued ITRON Standard Guidebook
2, which is a general introduction to the ITRON speci cations, deals primarily with ITRON3.0. Meanwhile, the earlier ITRON Standard Guidebook '92{
'93 remains as a valuable reference for use with theITRON (Ver 2.0) and ITRON2 speci cations, eventhough the dates in its title are now past.

Compatibilitychecksheets
ITRON3.0 speci cation

forParticipation in Embedded Systems
Conference

Since last year the ITRON Technical Committee has
been working on a set of checksheets for con rming thecompatibility of operating systems implementing theITRON3.0 speci cation. A beta edition of the checksheets has now been released in order to get opinions

As announced in ITRON Newsletter No.13, we arepreparing to participate this fall in the Embedded Systems Conference in San Jose, California, as part of theongoing e ort to promote the ITRON speci cations
overseas. The ITRON presence will feature a boothand a lecture introducing the speci cations. The Em-y This newsletter is reprinted from TRONWARE vol.34 andTRON PROJECT BIMONTHLY No.39.

1I-51-01E-015

Newly Registered Products (Jul. 1, 1994 { Jun. 1, 1995)
Speci cation
ITRON3.0 Speci cation

Product Name
SR900

Processor
SPC900CompanySony Corp.

ITRON-related Publications
NameTypePrice
Publisher
IssuedISBN No.
ITRON-ITRON Standard Handbook Speci cation (Jap.)
4,800Yen Personal Media Co. 1990 4-89362-079-7
ITRON3.0 Standard Handbook
Speci cation (Jap.)
4,000Yen Personal Media Co. 1993 4-89362-106-8
ITRON/FILE Standard Handbook
Speci cation (Jap.)
3,000Yen Personal Media Co. 1992 4-89362-092-4
ITRON Standard Guidebook '92{'93
Textbook (Jap.)
3,500Yen Personal Media Co. 1992 4-89362-197-6
ITRON Standard Guidebook 2
Textbook (Jap.)
3,500Yen Personal Media Co. 1994 4-89362-133-5
ITRON Speci cation Ver 2.01.00.00 Speci cation (Eng.) 12,000Yen TRON Association 1989
{ITRON2 Speci cation Ver 2.02.00.10
Speci cation (Eng.) 15,000Yen TRON Association
1990{
ITRON3.0 Speci cation Ver 3.00.00 Speci cation (Eng.){TRON Association1994{NOTES:- Prices do not include consumption tax.
- The documents issued by the TRON Association are available to Association members at a special discount rate.
- English-language speci cations can be obtained via the Internet from utsun.s.u-tokyo.ac.jp [133.11.11.11] withanonymous ftp. The usage of anonymous ftp is explained in Newsletter No.8.

bedded Systems Conference is a worldwide trade show
in the eld of embedded control systems, held twice ayear in the United States (once each on the East andWest coasts). The sponsor is Miller Freeman, Inc. We
will be taking part in ESC West, the larger of the twoannual events, scheduled for September 12{15 at theSan Jose Convention Center. The lecture presented
by the Technical Committee is entitled, \Standard
Real-Time Operating System Speci cation in Japan
for Consumer Applications," noting the importanceof embedded systems in Japan and introducing especially the ITRON speci cations. The booth will berun by the TRON Association.

The SR900 comes with a kernel generation tool(GR900) for setting static parameters when the OSis booted up and for selecting just the necessary functions, thereby con guring an OS optimized to its application.
A C language interface makes it possible to develop
applications in both assembly language and C. Also
provided with the OS is a driver library for operating
the A/D converter, serial interface, timer and other
SPC900 on-chip peripheral modules, by way of supporting embedded application development in C.
Using the SPC900's built-in serial interface function, connection functions are supported between multiple SPC900 chips, enabling development of multiprocessor systems.
The DR900 is provided as a dedicated debugger forecient testing of applications using the SR900 OS.
Among the debugging functions supported are thosefor referencing a task switching log and setting breaks
for when a designated object is acquired. In theseand other ways the DR900 provides an OS-oriented
application debugging environment.

New Product
The latest product to be registered in the ITRON Registration System for Products and Applications is introduced here.

SR900

Sony Corp.
The SR900 is a real-time operating system developed by Sony for its SPC900 Series of 16-bit embedded
microcontrollers, and implementing the ITRON3.0
speci cation.
The OS object size varies from a minimum 1 Kbytes
to a maximum of approximately 7 Kbytes (not including connection functions), taking advantage of thecompact ITRON architecture. Dispatching time isapproximately 35 s (on an external 20 MHz clocksupply). The interrupt handler adopts a direct-driving
approach for high-speed interrupt processing.
2