Intel Corporation
ENCODED ON-DIE TERMINATION FOR EFFICIENT MULTIPACKAGE TERMINATION

Abstract:

On-die termination (ODT) is triggered through a serial signal encoding on an ODT signal line instead of a simple binary enable signal. An ODT circuit applies one of multiple termination impedances based on the ODT signal encoding. An ODT enable signal line receives an ODT enable signal as multiple serial bits to encode the selected termination impedance, to cause the ODT circuit to apply the selected termination impedance.