Memory system and method of operating the same
AssigneeHynix Semiconductor Inc.
InventorSeung Han RYU
Life of this patent
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Abstract
A memory system includes a memory device configured to read control data for operating conditions from a content addressed memory (CAM) block by performing a CAM read operation and to perform a data input/output operation based on the control data and a memory controller configured to store the control data of the memory device and to determine whether the memory device is to perform the CAM read operation by comparing the stored control data with the control data of the memory device when an operating mode of the memory device or the memory controller changes.
Claims19
A memory system, comprising:
- a memory device configured to read control data for operating conditions from a content addressed memory (CAM) block by performing a CAM read operation and to perform a data input/output operation based on the control data;
- and
- a memory controller configured to store the control data of the memory device and to determine whether the memory device is to perform the CAM read operation by comparing the stored control data with the control data of the memory device when an operating mode of the memory device or the memory controller changes.
A memory system, comprising:
- a plurality of memory devices each configured to store control data related to operating conditions in a first register and perform a data input/output operation based on the control data, wherein the control data are read from a content addressed memory (CAM) block through a CAM read operation;
- and
- a memory controller comprising second registers for storing the control data of the respective memory devices and configured to determine whether the memory devices are to perform the CAM read operation by comparing the control data of the second registers with the control data of the first registers, respectively, when an operating mode of the memory device or the memory controller changes.
A method of operating a memory system, comprising:
- performing a CAM read operation to store data for operating conditions in a first register of a memory device;
- storing the data of the first register in a second register of a memory controller;
- comparing the data of the first register with the data of the second register when a change in a state of the memory device or the memory controller is detected;
- and
- controlling the memory device to perform the CAM read operation and updating the data of the second register when the data of the first register are not identical with the data of the second register as a result of the comparison.
Dependencies are inferred from the claim text.