Invention Grant
- Patent Title: Synchronization and order detection in a memory system
- Patent Title (中): 存储系统中的同步和顺序检测
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Application No.: US15262111Application Date: 2016-09-12
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Publication No.: US09594647B2Publication Date: 2017-03-14
- Inventor: Patrick J. Meaney , Glenn D. Gilda , Eric E. Retter , John S. Dodson , Gary A. Van Huben , Brad W. Michael , Stephen J. Powell
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Margaret A. McNamara
- Main IPC: G06F11/16
- IPC: G06F11/16 ; G06F1/12 ; G11C11/4076 ; G11C11/4093 ; G06F1/10 ; G06F1/04

Abstract:
Embodiments relate to out-of-synchronization detection and out-of-order detection in a memory system. One aspect is a system that includes a plurality of channels, each providing communication with a memory buffer chip and a plurality of memory devices. A memory control unit is coupled to the plurality of channels. The memory control unit is configured to perform a method that includes receiving frames on two or more of the channels. The memory control unit identifies alignment logic input in each of the received frames and generates a summarized input to alignment logic for each of the channels of the received frames based on the alignment logic input. The memory control unit adjusts a timing alignment based on a skew value per channel. Each of the timing adjusted summarized inputs is compared. Based on a mismatch between at least two of the timing adjusted summarized inputs, a miscompare signal is asserted.
Public/Granted literature
- US20160371159A1 SYNCHRONIZATION AND ORDER DETECTION IN A MEMORY SYSTEM Public/Granted day:2016-12-22
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