Method for zq calibration of a memory module, calibration device and data processing system
By performing ZQ calibration during the active refresh of DRAM memory cells, the problem of bandwidth resource loss caused by the inability to perform read and write operations during ZQ calibration is solved, achieving more efficient bandwidth utilization and reduced power consumption, while also reducing costs and improving product reliability.
CN115206367BActive Publication Date: 2026-07-24AMLOGIC (SHANGHAI) CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AMLOGIC (SHANGHAI) CO LTD
- Filing Date
- 2021-04-08
- Publication Date
- 2026-07-24
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Figure CN115206367B_ABST
Abstract
The method for calibrating the ZQ of the storage module, the calibration device and the data processing system, wherein the storage module comprises at least one storage unit, and the method for calibrating the ZQ of the storage module comprises: acquiring the running state of the storage unit; when it is determined according to the running state that the storage unit is in the active refresh state, sending a ZQ calibration instruction to the storage unit, so that the storage unit executes the ZQ calibration operation. The ZQ calibration method can improve the utilization efficiency of bandwidth resources.
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