Cell switch and cell switch network using dummy cells for simpli

Details Cell switch and cell switch network using dummy cells for simpli Cell switch and cell switch network using dummy cells for simpli

1995-04-11

1995-12-19

Shin, Christopher B.

Excavating

371 223, 371 226, 370 60, G06F 1300, H04L 1200

Patent

active

054775493

ABSTRACT:
A cell switch and a cell switch network with a simplified cell switch testing such that the testing processes can be carried out quickly and easily. The cell switch includes a dummy cell generation circuit for generating dummy cells in correspondence to the output transmission paths; and an output control circuit for selectively outputting the dummy cells to the output transmission paths when a test of the cell switch is indicated by an externally provided control signal. In a cell switch network in which the cell switches are interconnected in a form of a multi-step configuration, the cell switches belonging to each step in the multi-step configuration of the cell switch network is tested sequentially, by supplying the control signal to each of the cell switches belonging to each step in the multi-step configuration of the cell switch network sequentially, in a reverse order of steps in the multi-step configuration of the cell switch network.

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