5196106246

high-end personal computers and accel-¹ crator cards employing IntePs latest 80386 microprocessor. It is also suitable for use in other 80386-based systems, such as engineering workstations, network servers and standard bus processor cards (eg. Multibus and VME).

The A38152 is Austek Microsystems first major commercial release of a mainstream microprocessor pcripheral chip. Until now, the company has con-centrated on producing very large scalę integrated circuits (VLSI) in smali batches for specific dients.

Major features of the A38152 include total control of a 32K byte capacity cache control memory, operation at speeds of 16 and 20MHz (with a 25MHz version planned), a direct interface to the 80386 microprocessor, a direct interface to AustekS 8K x 8-bit static RAM chips, fuli 32-bit addressability for 4 giga byte memory support, and cache coherency support.

Austek has samples of the 16MHz A38152 available now, packaged in 84-pin ceramic chip carriers, for SUS198.00 (1-10 units). Production units will be available in September for SUS58.00 (10,(XH) units). Plastic packaging is planned to be introduced in 1988.

News Highlights

Telecom ISDN contract to Ericsson

Telecom Australia has awarded a $26 million ISDN contract to Ericsson to provide equipment for the world’s first national Inteurated Services Digital NetWork (ISDN). The contract is for the provision of ISDN switching equipment.

The Telecom network will comply fully with intemational ISD standards and this will enable Australia to be con-nected to an eventual world-wide ISDN network.

ISDN is the ncxt significant develop-ment in telecommunications throughout the world, and its introduction to Australia will open up a new rangę of facili-ties and easier access for ail types of Communications. Voice, text, data and image will all be capable of being trans-mitted simultaneously over 30 channels of the ISDN access 2Mbs digital linę. Each channel will be able to handle both voice and data at speeds of 64,000 bits per second.

The AXE telephone system which Ericsson supplies to Telecom for Australia^ telephone network is now being geared for ISDN.

Ericsson^łs corporate relations direc-tor, Brian McKay says that any company using a digital PABX with an ISDN capability will be able to use the new network.

“As a result, one of the major areas of impact of ISDN will be on the PABX market and this is a logical place to start implementing ISDN because of the

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Australian-designed cache controller chip for 80386 micros

Adelaide-based VLSI design and manufacturing firm Austek Microsystems has announced the A38152 micro-cache controller, designed to dramati-cally boost the processing speed of In-tel*s 80386 microprocessor.

According to the company*s generał manager Denis Redfem, the A38152 is a world first, putting Austek Microsystems at the forefront of this type of microprocessor technology.

The Microcache is suitable for use in many benefits that will result to business and the community,” he said. “Ir will give PABX and Communications equipment precedence in the market-place. Computers, telephone faesimiles, photocopies and laser printers will all be connected through the PABX for ISDN applications.”

Telecom plans to launch the ISDN network commercially during 1988, fol-

Iowing trials by selected major custom-ers. The initial network, which is ex-pected to expand rapidly, will consist of eight interconnected AXE digital central processor switches located in all major Capital cities. There will be ini-tially two in both Sydney and Melbourne, and one in Canberra, followed quickly by one each in Brisbane, Ade-laide and Perth.    <D

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36

ELECTRONICS Australia. September 1987