Burnaby, British Columbia, July 24, 1992 -- Spectrum Signal Processing Inc.
today introduced its new family of PC and VME products based on its
Module-Link TIM-40 compliant C40 module and targeted for high-throughput
applications that require parallel processing.

Each of the new boards is built around the TMS320C40 floating point
processor and Spectrum's Module-Link MDC40S Module. The MDC40S module adds
memory, EPROM and an interconnect standard to the C40 that users can
design into their own systems. The new family reflects the response of
Spectrum and Loughborough Sound Images (LSI) of the United Kingdom to the
market's demands for industry-standard bus architectures. The family of
boards will be applied extensively in new image processing, sonar, radar,
simulation and modeling systems.

The introduction of the new C40-based family means Spectrum provides the
broadest and most comprehensive support for the most popular and powerful
floating point DSP on the market.

"Working closely with LSI, Spectrum is providing a well-defined set of
development products that help bring the C40 into an increasingly broad
realm of markets and applications," said Mitch Reifel, Floating-point
Product Manager for Texas Instruments. "They are doing a very complete job
of developing the kinds of tools designers need as they exploit the power
of the TMS320 family." Texas Instruments will be hosting five sales
seminars throughout the fall; two of them scheduled near DSPx in Santa
Clara and DSP World in Boston. TIM-40 will be a large component of these
seminars and Spectrum will be in attendance displaying their line of C40
products.

TMS320C40 Module Development System

The first standard bus architecture-based design added to Spectrum's C40
family is a dual module PC-AT plug-in board, the TMS320C40 Module
Development System. This IBM PC/AT compatible board is supplied with up to
740K words of zero wait state memory. A flexible dual-port memory (up to
8K words) provides high speed data transfer between the primary module and
the host PC.

The C40 Module Development System can also be equipped with a high
fidelity, analog daughter module for analog I/O. Alternatively, Spectrum's
on-board DSP-Link digital interface can be used to support a variety of
I/O options.

The C40 Module Development System can be used standalone as a real-time
PC-based data acquisition and signal processing station. Multiple boards
can be connected to provide array processing capabilities to the PC. The
C40 Module Development System and associated software development tools
combine to form an excellent development platform for algorithm and/or
software development. Leading DSP software vendors such as Comdisco
Systems and 3L have already demonstrated their software tools using the
C40 Module Development System. Comdisco's SPW and Multiprox provide a
graphical programming and design environment for systems requiring one or
more general purpose DSPs.

Both the MDC40S DSP Module and C40 Module Development System PC-AT plug-in
board are in full production. C40 Module Development System pricing begins
at US$ 7295 in single quantities and is available now.

Several VMEbus C40 boards are also under development. The first is a Quad
Processor VMEbus board consisting of sites for four TIM-40 modules. Using
a communication link of TMS320C40, each module connects to the VMEbus for
supervisory control, watchdog and data transfers by the VMEbus master. Two
of the communication links of each processor are used to connect to the
adjacent processors in a 2-dimensional grid. The remaining three links are
routed to the front panel for off-board connection to other QPV40s to form
a parallel processing topology, which will be especially useful in
applications such as Radar, Sonar and modelling.

One of the module sites is augmented with I/O connectors to support
interfacing external devices to the processor array via the VMEbus P2
connector or front panel connector. The I/O module provides a very high
level of flexibility for interfacing the C40 links or global bus to VSB,
VXI, DSP-Link or custom devices. The QPV40 is ideally suited for high
performance matrix and multi-processing applications. The C40 processing
elements can readily be connected to application specific topologies
tailored to the system requirements.

OPV40-SM

The QPV40-SM, a shared memory version of the QPV40, also is under
development. The QPV40-SM connects each global bus of the 4 processors and
the VMEbus to a shared access high density DRAM memory. The shared memory
can be populated with up to 64 Mbytes. The QPV40-SM is designed for shared
memory multiprocessing applications such as image processing.

Spectrum Signal Processing is a leading supplier of DSP-based development
systems and embedded systems solutions, including: hardware systems,
software tools, applications software and other DSP products for the PC,
VME and SBus environments. The QPV40 and QPV40-SM are currently under
development by Loughborough Sound Images in Loughborough, England.
Spectrum has the exclusive rights to all Loughborough products in North
America and is publicly traded on the Vancouver Stock Exchange under the
symbol SSY.

Spectrum Signal Processing Inc
8525 Baxter Place, 100 Production Court
Burnaby, BC V5A 4V7 CANADA
604-421-5422

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