High speed wire-or communication system and method therefor

Details High speed wire-or communication system and method therefor High speed wire-or communication system and method therefor

1995-09-13

1998-04-14

Butler, Dennis M.

Pulse or digital communications

Transceivers

375238, 375257, 375354, 370280, 370212, 370503, H03K 708

Patent

active

057401993

ABSTRACT:
A communication system (5) provides an improved wired-OR connection for use in the bidirectional communication of information between two devices. A first device is a master host device (10) which initiates all communications while one or more slave devices (40) connected to a wired-OR common communication line either receive information from or send information to the master device. Depending on a direction of a data transfer operation, either the master or the host determines a bit time required to perform the data transfer. Furthermore, a device which terminates the bit time is the device which issues a speed up pulse for driving the common communication line to a logic one value. Such speed up pulses permit faster communication than is normally possible on a wired-OR communication line and makes high speed bidirectional communication over a single wired-OR line practical.

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Motorola, Inc.; HC11-M68HC11 Reference Manual; 1989, 1988; pp. 2-9, 2-10, 2-11, 2-27, 2-28, 3-2, and 3-3.

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