Patent ID: 11888476
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 0:
1. An apparatus connected to an external device via a signal line, the apparatus comprising:
an on-die termination (ODT) circuit set in a first ODT state;
a plurality of signal pins, each of which is connected to the signal line; and
an ODT control circuit configured to:
obtain information from the external device indicating a second ODT state of the external device,
identify whether the second ODT state indicated by the information obtained from the external device corresponds to the first ODT state to determine whether a termination state of the apparatus is a symmetric ODT or an asymmetric ODT, and
based on the termination state of the apparatus being the asymmetric ODT in which the first ODT state and the second ODT state are different, provide an asymmetric ODT parameter code to the external device, and disable the ODT circuit when a signal is not transmitted through the signal line.