Patent ID: 6300789
Filing Date: 2001-10-09
Classification: G06F

Abstract:
A method of terminating a non-symmetric transmission line, having at least three terminations to which chips are coupled, at least two of the terminations being at stubs on one end of the transmission line and a third termination at the other end of the transmission line, comprising dynamically changing termination impedances at said chips according to the topology of the network and which chip is driving the transmission line such that, for an impedance of said transmission line that is Zo, the termination impedance at said chip at said third termination is set to approximately Zo, the termination impedance at the chips at each of said at least two terminations is set to approximately NZo, where N equals the number of stubs when said stubs are receiving, and, when one of said chips at one of said stubs is driving its impedance is set to approximately Zo and that of the chips at the other stubs to a value much greater than Zo.