Exorset 165 arrives in UK The Exorset 165 micro- computer development system from Motorola has been launched in the U K.

The 165 is designed around an MC6809 microprocessor. It has a 12-in CRT. The twin 5¼-in double- density disc drives have a total storage capacity of 1.3 Mbyte. The ASCII keyboard is detachable.

The standalone system can also be extended with boards from the Motorola Microcodule range. It includes serial and cen- tronics-compatible inter- - faces and a video output.

The operating system is the Unix- like OS-9. The disc directory provided is tree structured. The interrupt-driven I/O is said by Motorola to be device independent. The command interpreter allows I/O redirection.

The system is supported with 6809 assembler, 6809 debugger, CRT editor,

Motorola's Exorset 165

BASIC 09 and OS-9 utilities software. (Motorola Ltd, York House, Empire Way, Wembley, Middx HA 90PR, UK. Tel: 01-902 8836. UK distributors: Hawke Electronics Ltd, Amotex House, 45 Hanworth Road, Sunbury on Thames, Middx, UK. Tel: 01-979 7799)

Intel launches Ethernet serial interface and 10 M e/s controller

Two Intel chips have been designed for local area networks. The 82501 Ethernet serial interface chip works directly with the 82586 local com- munications controller chip in Ethernet and nonEthernet 10 Mbyte/s applica- tions.

The 82501 generates the 10 MHz transmit clock for the 82586. It per- forms Manchester encoding/decoding of transmitted/received frames. It also provides the electrical interface to the Ethernet transceiver cable. Diagnostic Ioopback control enables the 82501 to route the signal from the 82586 through the Manchester circuitry and back to the 82586.

The communications interface can be tested sequentially through the

combined Ioopback of the 82586 and 82501. The onchip watchdog timer circuit prevents the station from locking up in a continuous transmit mode.

The 82586 chip manages the whole process of transmitting and receiving frames, so the host processor does not have to manage the communications peripheral.

The architecture of the 82586 is also configurable under program con- trol. This allows the chip to be customized for other applications that require high-speed serial transmission. (Intel Corporation (UK) Ltd, Pipers Way, Swindon, Wilts SN3 1RJ, UK. Tel: (0793) 488388. UK distributor: Bytech L td, Suttons Industrial Park, London Road, Eartey, Reading RG6 IAZ, UK. Tel: (0734) 61031. Telex: 848275)

EP M, progr g package from UK

A range of EPROM programming and emulation equipment has been launched by UK company G P Indus- trial Electronics. It is based on three units: the EP-8000, EP-4000 and P-8000.

The EP-8000 emulates or programs NMOS EPROMs. Personality cards and other extras are not needed. The soft- ware is included with the unit. The machine automatically configures itself for programming or emulating the selected devices.

Users can view the contents of any block of memory with the EP-80OO's video output. Data is loaded into the 8k x 8 static RAM from a preprogram- med EPROM, the EP-8000 keypad, the serial or parallel port or an audio cassette. RS232 Intel ASCII-hex and Motorola formats are provided as standard.

The EP-8000 costs £695. The similar tbut smaller) EP-4000, at f.545, is designed for programming and emulating EPROMs up to 4k x 8. Both units are intended for EPROM programming and microsystem development.

The P-8000 is for production pro- gramming. It can program up to eight devices simultaneously. It works with a menu system coupled with a selftest routine for detecting operator and component errors. The unit costs £695. (G P Industrial Electronics, Unit E,

EPROM emulation equipment

Huxley Close, Newnham Industrial Estate, Plymouth PL 7 4iN, UK. Tel: (0752) 332961)

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