Method and apparatus for implementing low latency crossbar...

Details Method and apparatus for implementing low latency crossbar... Method and apparatus for implementing low latency crossbar...

2005-12-06

2005-12-06

Patel, Ajit (Department: 2664)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C710S305000, C710S317000

Reexamination Certificate

active

06973078

ABSTRACT:
A digital crossbar switch utilizes an asynchronous RAM to provide high density and low latency storage and a write enable pulse generator to generate write enable pulses that are independent of the clock signal duty cycles. The crossbar switch includes a plurality of ports coupled to a bus, at least one memory element coupled to one of the plurality of ports, and a circuit for generating a write enable pulse coupled to each of the memory element. The circuit for generating the write enable pulse includes a pulse generator for generating a pulse, the pulse tracking a leading edge of a clock signal, a write enable signal generator for generating a write enable signal, and a first logic circuit coupled to the pulse generator and the write enable signal generator for generating the write enable pulse by combining the pulse and the write enable signal.

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