Inventors:
Richard E. Perego - Thornton CO, US
Frederick A. Ware - Los Altos Hills CA, US
Ely K. Tsern - Los Altos CA, US
Craig E. Hampel - Los Altos CA, US
Assignee:
Rambus Inc. - Sunnyvale CA
International Classification:
G06F 12/08
G06F 12/00
G06F 13/00
US Classification:
711115, 711 4, 710 38, 710100, 710104, 710300, 710301, 710302, 710303, 710304, 710305, 710316, 365 52, 365 63
Abstract:
Described are systems that employ configurable on-die termination elements that allow users to select from two or more termination topologies. One topology is programmable to support rail-to-rail or half-supply termination. Another topology selectively includes fixed or variable filter elements, thereby allowing the termination characteristics to be tuned for different levels of speed performance and power consumption. Termination voltages and impedances might also be adjusted.