The Design of a single chip 8x8 ATM switch in 0.5 micrometers CMOS VLSI

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Title: The Design of a single chip 8x8 ATM switch in 0.5 micrometers CMOS VLSI
Author: Rughoonundon, Rudi
Abstract: This thesis illustrates the design of a single chip Asynchronous Transfer Mode (ATM) protocol switch using Very Large Scale Integration (VLSI). The ATM protocol is the data communications protocol used in the implementation of the Broadband Integrated Services Digital Network (B-ISDN), A number of switch architecture are first studied and a new architecture is developed based on optimizing performance and practicality of implementation in VLSI. A fully interconnected switch architecture is implemented by permanently connecting every input port to all the output ports. An output buffering scheme is used to handle cells that cannot be routed right away. This new architecture is caned the High Performance (HiPer) Switch Architecture. The performance of the architecture is simulated using a C++ model. Simulation results for a randomly distributed traffic pattern with a 90% probability of cells arriving in a time slot produces a Cell Loss Ratio of 1.Ox 10^-8 with output buffers that can hold 64 cells. The device is then modeled in VHDL to verify its functionality. Finally the layout of an 8x8 switch is produced using a 0.5 micrometer CMOS VLSI process and simulations of that circuit show that a peak throughput of 200 Mbps per output port can be achieved
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Date: 1996-11

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