Microprocessor interface device for use in a telecommunications

Details Microprocessor interface device for use in a telecommunications Microprocessor interface device for use in a telecommunications

1985-11-27

1988-06-28

Griffin, Robert L.

Communications: electrical

Continuously variable indicating

With meter reading

370 85, 364200, 379184, H04Q 500, H04Q 1100, H04J 302

Patent

active

047542748

ABSTRACT:
The microprocessor interface device is for use in a telecomminications system including a microprocessor. The device includes a first interfacing means which receives signals from, and dispatches signals to, the telecommunications system. A second interfacing means receives signals from, and despatches signals to, the microprocessor. A memory is provided, together with arbitration means arranged to control the first and second interfacing means so that only one interfacing means at a time has access to the memory. Decoding means is adapted to respond to address signals presented to the second interfacing means by the microprocessor, to generate signals enabling areas of the telecommunications system to be accessed.

REFERENCES:
patent: 4339633 (1982-07-01), Ahmed
patent: 4453214 (1984-06-01), Adcock
patent: 4543628 (1985-09-01), Pomfret
patent: 4586128 (1986-04-01), De Woskin

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