Asynchronous transfer mode cell demultiplexing control apparatus

Details Asynchronous transfer mode cell demultiplexing control apparatus Asynchronous transfer mode cell demultiplexing control apparatus

1996-05-15

1998-01-13

Nguyen, Chau

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370426, H04L 1256

Patent

active

057086613

ABSTRACT:
An ATM cell demultiplexing control apparatus comprising an ATM switch interface circuit for performing an interface function with an ATM switch link and outputting ATM cell data received from the ATM switch link and a start signal, a register circuit being enabled in response to the start signal from the ATM switch interface circuit, the register circuit shifting the ATM cell data received from the ATM switch interface circuit to extract a virtual path indicator therefrom and outputting the extracted virtual path indicator and the received ATM cell data, a memory for storing a virtual path indicator table therein and outputting information listed in the stored virtual path indicator table as a processor routing bit map in response to the virtual path indicator from the register circuit, a local processor for updating the virtual path indicator table stored in the memory, a processor cell transmitter for outputting a reception FIFO selection signal in response to the processor routing bit map from the memory to rout the output data from the register circuit, and a plurality of reception FIFO memories being selectively enabled in response to the reception FIFO selection signal from the processor cell transmitter, the reception FIFO memories storing the output data from the register circuit therein and outputting the stored data.

REFERENCES:
patent: 5084867 (1992-01-01), Tachibana et al.
patent: 5459743 (1995-10-01), Fukuda et al.
patent: 5463621 (1995-10-01), Suzuki
patent: 5467349 (1995-11-01), Huey et al.
ATM Cell Multiplexer WAC-185-A Data Sheet, Integrated Telecom Technology, Inc., Copyright 1995, pp. 1-45.

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