Inter-repeater backplane with mixed signal state machine interco

Details Inter-repeater backplane with mixed signal state machine interco Inter-repeater backplane with mixed signal state machine interco

1995-01-30

1998-02-10

Tse, Young T.

Pulse or digital communications

Repeaters

Testing

370243, 370425, 370446, H04B 1702, H04L 1226

Patent

active

057177147

ABSTRACT:
An inter-repeater backplane employs both analog and digital circuitry to convey state machine information to adjacent repeaters thereby allowing seamless integration of multiple repeaters into a single hub without requiring additional drivers or external glue logic. A data path allows the passage of data between multiple repeaters on the inter-repeater backplane and an inter-repeater backplane enable allows individual repeaters to take control of the inter-repeater backplane data bus. An inter-repeater backplane driver enables external bus drivers which may be required in synchronous systems with large backplanes. An inter-repeater backplane clock is used to synchronize multiple repeaters on the inter-repeater backplane. Only two leads (IRCOL and IRCFS) are used to provide transmit and receive collision information. These two leads in conjunction with IRENA also indicate which repeater is receiving data. The transmit and receive collision information is presented on the backplane in a manner that is both analog and digital in nature.

REFERENCES:
patent: 4939747 (1990-07-01), Adler
patent: 5265123 (1993-11-01), Vijeh et al.
patent: 5517520 (1996-05-01), Chi
patent: 5574726 (1996-11-01), Chan et al.

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