ODT Methods and memory system for optimizing on-die termination ODT settings of multi-ranks
Disclosed in the present invention are a method for optimizing on-die termination (ODT) of multi-ranks, and a memory system. The memory system may include a multi-ranks memory device for sharing signal line(s) with a memory controller. The memory controller broadcasts ODT state information of the si...
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Format | Patent |
Language | English Korean |
Published |
08.10.2019
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Abstract | Disclosed in the present invention are a method for optimizing on-die termination (ODT) of multi-ranks, and a memory system. The memory system may include a multi-ranks memory device for sharing signal line(s) with a memory controller. The memory controller broadcasts ODT state information of the signal line shared among the multi-ranks to all memory devices of the multi-ranks. The multi-ranks memory device receives the ODT state information of the signal line shared by each of the memory devices of the multi-ranks, and stores the same in a mode register. In addition, based on the ODT state information of the signal line stored in the mode register, each of the memory devices of the multi-ranks changes ODT setting inside the memory device connected to the signal line, changes a reference voltage level provided to an input buffer connected to the signal line, or changes the type of the input buffer connected to the signal line. Therefore, the method for optimizing ODT, and the memory system can optimize the ODT setting of memory devices according to the ODT states by broadcasting the ODT state information of signal line(s) of multi-ranks to the memory devices.
멀티-랭크들의 온-다이 터미네이션(ODT) 셋팅을 최적화하는 방법 및 메모리 시스템이 개시된다. 메모리 시스템은 메모리 콘트롤러와 신호 라인(들)을 공유하는 멀티-랭크들 메모리 장치를 포함할 수 있다. 메모리 콘트롤러는 멀티-랭크들에 공유되는 신호 라인의 ODT 상태 정보를 멀티-랭크들의 모든 메모리 장치들로 브로드캐스트한다. 멀티-랭크들 메모리 장치는, 멀티-랭크들의 메모리 장치들 각각에서 공유되는 신호 라인의 ODT 상태 정보를 수신하여 모드 레지스터에 저장한다. 멀티-랭크들의 메모리 장치들 각각은, 모드 레지스터에 저장된 신호 라인의 ODT 상태 정보에 기초하여, 신호 라인에 연결된 메모리 장치 내부의 ODT 셋팅을 변경하거나, 신호 라인에 연결된 입력 버퍼로 제공되는 기준 전압 레벨을 변경하거나, 신호 라인에 연결된 입력 버퍼의 타입을 변경한다. |
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AbstractList | Disclosed in the present invention are a method for optimizing on-die termination (ODT) of multi-ranks, and a memory system. The memory system may include a multi-ranks memory device for sharing signal line(s) with a memory controller. The memory controller broadcasts ODT state information of the signal line shared among the multi-ranks to all memory devices of the multi-ranks. The multi-ranks memory device receives the ODT state information of the signal line shared by each of the memory devices of the multi-ranks, and stores the same in a mode register. In addition, based on the ODT state information of the signal line stored in the mode register, each of the memory devices of the multi-ranks changes ODT setting inside the memory device connected to the signal line, changes a reference voltage level provided to an input buffer connected to the signal line, or changes the type of the input buffer connected to the signal line. Therefore, the method for optimizing ODT, and the memory system can optimize the ODT setting of memory devices according to the ODT states by broadcasting the ODT state information of signal line(s) of multi-ranks to the memory devices.
멀티-랭크들의 온-다이 터미네이션(ODT) 셋팅을 최적화하는 방법 및 메모리 시스템이 개시된다. 메모리 시스템은 메모리 콘트롤러와 신호 라인(들)을 공유하는 멀티-랭크들 메모리 장치를 포함할 수 있다. 메모리 콘트롤러는 멀티-랭크들에 공유되는 신호 라인의 ODT 상태 정보를 멀티-랭크들의 모든 메모리 장치들로 브로드캐스트한다. 멀티-랭크들 메모리 장치는, 멀티-랭크들의 메모리 장치들 각각에서 공유되는 신호 라인의 ODT 상태 정보를 수신하여 모드 레지스터에 저장한다. 멀티-랭크들의 메모리 장치들 각각은, 모드 레지스터에 저장된 신호 라인의 ODT 상태 정보에 기초하여, 신호 라인에 연결된 메모리 장치 내부의 ODT 셋팅을 변경하거나, 신호 라인에 연결된 입력 버퍼로 제공되는 기준 전압 레벨을 변경하거나, 신호 라인에 연결된 입력 버퍼의 타입을 변경한다. |
Author | CHOI YEON KYU HA KYUNG SOO MOON DAE SIK OH KI SEOK JANG JIN HOON SOHN YOUNG SOO LEE CHANG KYO HYUN SEOK HUN |
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DocumentTitleAlternate | 멀티-랭크들의 온-다이 터미네이션(ODT) 셋팅을 최적화하는 방법 및 메모리 시스템 |
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Snippet | Disclosed in the present invention are a method for optimizing on-die termination (ODT) of multi-ranks, and a memory system. The memory system may include a... |
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Title | ODT Methods and memory system for optimizing on-die termination ODT settings of multi-ranks |
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