Patent ID: 6163165
Filing Date: 2000-12-19
Classification: G06F,H03K,H04L

Abstract:
A method for operating an information handling system comprising:providing at least three transmission lines each having a characteristic impedance, each of said transmission lines having a first end, each of said first ends being commonly connected to each other first end, and a second end;providing a plurality of drivers equaling the number of transmission lines in said plurality of transmission lines, each driver coupled to a second end of a different one of said transmission lines, each driver comprising a pull-down circuit having a pull-down resistance matched to the characteristic impedance of one of said lines, and a pull-up circuit having a pull-up resistance corresponding to the number of second ends;providing at least one receiver circuit coupled to a second end of one of said transmission lines;designating one of said drivers as an active driver;designating each driver in said plurality of drivers other than said active driver as a terminating driver;causing each terminating driver to be configured in a nonactive pull-down terminating configuration; andcausing said active driver to drive a signal onto the transmission line to which said active driver is connected.