Importance

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Abstract

A 2n.times.n multiplexing switch has 2n VD(valid) extractors for validating the routing tags of the inputted cells and determine if the cell is to be saved or not, and generate VD signals, a FIFO buffer selector for selecting the FIFO buffer to store each cell using the VD signal and for transferring the cell to the selected FIFO buffer, a shared FIFO buffer consisting of 2n shared FIFO buffers and storing cells, an output device for reading cells stored in the FIFO buffers and for transferring n cells to output ports and a cell counter for counting cells currently stored in the shared FIFO buffer using the data from the FIFO buffer selector and the output device.

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First Claim