STM-based ATM cell physical layer processing circuit

Details STM-based ATM cell physical layer processing circuit STM-based ATM cell physical layer processing circuit

1997-08-08

1999-11-02

Ton, Dang

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370395, 370476, H04L 1228, H04L 1256

Patent

active

059783770

ABSTRACT:
The present invention discloses a processing circuit for STM-based ATM (Asynchronous Transfer Mode) cell physical layer.
In the present invention are disclosed a general circuit structure having a multiplex, demultiplex unit between a byte processing unit and a parallel processing unit, a real-time transform method between 16 bit UTOPIA format and a standard ATM cell format in a ATM cell processing unit, and a control circuit which is normally in 9.times.270 mode and drives all the circuit in 9.times.30 mode in a special test mode.

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