Access request management using subcommands

By tracking and managing the sub-command status of access requests, the problem of intermittent delay of access requests in the memory system is solved, and the processing efficiency and performance of the memory system are improved.

CN117795466BActive Publication Date: 2025-09-23MICRON TECHNOLOGY INC
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Patent Information

Application Number
CN202280053756.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-08-26
Filing Date
2022-05-12
Publication Date
2025-09-23
Estimated Expiration
2042-05-12

AI Technical Summary

Technical Problem

Existing memory systems have significant gap delays when processing asynchronous access requests, which limits the number and efficiency of access requests processed, especially when data protection and recovery solutions such as RAID are involved.

Method used

An access request management solution is adopted to track the status of the sub-command corresponding to each access request, use the sub-command to process the access request, and provide timing fine-tuning control to reduce gap delay.

Benefits of technology

This effectively reduces the gap delay when the memory system executes multiple access requests, and improves the processing efficiency and performance of the memory system.

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Abstract

The present invention relates to systems, devices, and methods for managing access requests using subcommands. Access requests received from a host system can be managed using a corresponding set of subcommands corresponding to each access request, and the status of the subcommands can be tracked. Tracking the progress of access requests at a fine-grained level (of subcommands) can provide efficient management of the access requests, thereby reducing inter-process latency when processing multiple access requests.
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Citation Information

Patent Citations

  • Cyclically interleaved XOR array for error recovery

    CN108062258A

  • Memory controller

    CN111656335A