Siemens board

NSC800 single board computer Double polysilicon CMOS technology (pECMOS) is the basis of a new single board microcomputer from DI-AN Data Systems. Using Nat Semi's NSC800 CPU, the CBC 800 is a Multibuscompatible processor. It has onboard 16 kbyte of RAM, 32 kbyte of ROM, parallel and serial I/O ports, system clock and programmable timers. The board incorporates a powersave feature which allows the onboard timers to start and stop the processor's operation - this further reduces the power requirements facilitated by the CMOS technology (a claimed reduction of 20:1 on most NMOS products). Multibus arbitration control logic allows multiple CPUs and/or controllers to share system resources such as memory, mass storage or I/O devices, using the system bus for communication. A range of 3 - 1 6 (with an external priority network added) masters can be used on the system bus. The arbitration control logic and CPU operate from independent clocks allowing different speed controllers to share resources on the same bus.

Each board contains 44 programmable I/O lines implemented using two NSC810 devices. The system software allows the I/O interface to be customized to meet specified peripheral requirements. A programmable communications interface (UART) is also carried onboard. An auxiliary

power bus is provided to allow separate power to RAM for systems requiring battery backup of read/write memory. CBC 800 is available in either commerical (0-70°C operating) or industrial (-40-+80°C operating) versions. (DI-AN Data Systems Ltd,

Mersey House, Battersea Road, Heaton Mersey Industrial Estate, Stockport, Cheshire 5t(4 3EA, UK. Tel: 061-422 9768)

Microcomputer using 8086 With its CP/M 86 operating system, the 16-bit 8086-based microcomputer from Piiceon is well suited for word processing and office automation because of its extensive local processing capability and fast response time when operated online. The DataVue 1000 terminal has full-page 66 x 80 character display, three serial RS232C ports, one for communication, one for the printer and one as an auxiliary interface, as well as 64k RAM and 8k PROM. It offers full microcomputer power locally, including two dual-sided

double-density floppy disc drives, each with 1.2 Mbyte of storage. Eight transmission rates are selectabte in a range 110-19 200 baud in either block or interactive mode. High level language support, in the form Microsoft BASIC and CIS COBOL, is available; word-processing application software will be available in July 1981. TheOEM quantity 25 price for Model 1000 is $8654 -this includes CP/M 86 and the wordprocessing software. (Piiceon, Inc.,

2350 Bering Drive, San Jose, CA 96131, USA. Tel." (408) 8030)

Siemens board

Prototyping

The Siemens 210 is a single board microcomputer system designed for small scale industrial automation. In addition to the central processor and a real-time clock, the 210 offers programmable serial and parallel interfaces for I/O transfers, 12 interrupt inputs for real-time applications and up to 20 kbyte of CMOS RAM and EPROM. For increased memory capacity, the 210 can be upgraded to give u p to 64 kbyte. The expansion modules, in either single or double-high Europa format, can give up to 8 kbyte of CMOS RAM and 32 kbyte of EPROM or up to 4 kbyte of CMOS RAM and 16 kbyte of EPROM. The programming languages PL/M, BASIC 80 and FORTRAN 80 are available, as well as STEM, Siemens' own high level language, for programming, testing and storage in EPROMs,

for writing the software straight on the 210 system. (Siemens Ltd, Siemens

SLMC-t is a low cost microcomputer control element designed either as a prototyping aid for 8085-based systems or as the central controlling element for a wide variety of machines. As a protoWping aid, the unit provides a conveniently packaged 8085-based system on a small PCB, saving time and money on wirewrapped prototypes. (All port lines and bus lines are available on header connectors, which will mate with insulationdisplacement type cable systems etc.) As a control element, the unit can be used in many types of industrial products and systems, e.g. vending machines, machine tools etc. The card is stackable and will connect directly to an. I/O buffer card. It is supplied fully burned-in and tested. (Rob

House, Windmill Road, Sunbury-onThames, Middx TWl6 7HS, UK. Tel." (09327) 85691)

Davies Associates Ltd, Alameda House, Hazlebury Crescent, Luton, Beds LUI 1DF, UK. Tel." (0582) 2888 7)

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microprocessors and microsystems