Microprocessor multiplexer method and apparatus for bisynchronou

Details Microprocessor multiplexer method and apparatus for bisynchronou Microprocessor multiplexer method and apparatus for bisynchronou

1982-08-16

1984-01-31

Brigance, Gerald L.

Multiplex communications

Wide area network

Packet switching

370 82, 370103, H04J 316

Patent

active

044293828

ABSTRACT:
A microprocessor-controlled method and apparatus for handling transfer of data in bisynchronous protocol between a data source and a data transmission link. The apparatus responds to particular character sequences to request allocation of transmission capacity from a multiplex controller and to terminate character transmission over the data link. The apparatus includes SIO devices for handling character input and output and a microprocessor and associated memory for examining and queuing the received characters. Bidirectional I/O devices communicating with the microprocessor are used in accomplishing monitoring of interface signal changes and in communicating with the multiplex controller.

REFERENCES:
patent: 3700820 (1972-10-01), Blasbalg et al.
patent: 4082922 (1978-04-01), Chu
patent: 4093823 (1978-06-01), Chu
patent: 4251880 (1981-02-01), Baugh et al.

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