Memory Controller Suspend Resume Timing Control
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Solution Overview
Problem
Current storage devices face challenges in efficiently managing suspend and resume operations, leading to suboptimal performance and efficiency in data storage and retrieval processes.
Innovation Solution
A memory controller with an operation controller, suspend controller, and delay information storage is implemented to manage suspend and resume commands, allowing for precise control over memory device operations by determining delay periods based on target periods, thereby optimizing the suspend and resume processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If suspend and resume commands are issued without considering operation periods, then device responsiveness is improved, but operation reliability deteriorates due to improper timing
Solution Approach 1:
The memory controller preliminarily determines the current operation period of the memory device before issuing suspend or resume commands. This preliminary assessment of the operation state ensures that commands are issued at appropriate timing, preventing reliability issues while maintaining responsive device behavior
2Adaptability or versatility
If suspend commands are issued immediately during operation, then operational flexibility is improved, but operation stability deteriorates due to interference with ongoing memory operations
Solution Approach 1:
The system dynamically adjusts suspend and resume command issuance based on the current operation period of the memory device. Rather than using fixed timing, the controller adapts command timing to the actual operational state, maintaining both flexibility and stability by considering the dynamic progress of memory operations
3Device complexity
If delay periods are not considered in suspend/resume operations, then process simplicity is improved, but performance efficiency deteriorates due to suboptimal timing
Solution Approach 1:
The system introduces delay period parameters that are determined based on the current operation period. By adjusting these timing parameters dynamically, the system optimizes suspend and resume performance without requiring complex additional hardware or processes
Data Source
AI summary
A memory controller controlling an operation of a memory device including a plurality of memory cells may provide a first suspend command instructing the memory device to suspend performance of the first operation, provide a command requesting information on a target period in which the first operation is suspended among the plurality of periods, provide a command instructing a second operation to the memory device, provide a resume command instructing the memory device to resume the performance of the first operation after the second operation is ended, and provide a second suspend command instructing the memory device to re-suspend the performance of the first operation after a delay elapses from a time at which the resume command is provided, the delay being based on the delay information corresponding to the target period.