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Session-based memory operations

A memory system and cache technology, applied in static memory, memory system, read-only memory, etc., can solve problems such as lost programming state

Pending Publication Date: 2022-06-07
MICRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Volatile memory cells (eg, DRAM cells) can lose their programmed state over time unless refreshed periodically by an external power source

Method used

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  • Session-based memory operations
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Examples

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Embodiment Construction

[0018] The memory system may receive logical addresses from the host system and translate those logical addresses into physical addresses associated with memory cells of memory devices within the memory system. For example, a memory system may receive commands (eg, access commands) targeting one or more logical block addresses (LBAs), and translate those LBAs into available locations for the access indicated by the access command The physical block address (PBA) of the operating memory unit. To perform logical address translation, the memory system may use a logical-to-physical (L2P) block address table or "L2P table" that maps LBAs to corresponding PBAs. The memory system may store multiple L2P tables (eg, in long-term memory) and selectively load one or more of the L2P tables into the cache (eg, with an associated access command) when an associated access command is received. for faster access). However, waiting for the associated access command before loading the L2P tabl...

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Abstract

The application is directed to session-based memory operations. The memory system may determine that a logical address targeted by a read command is associated with a session table. The memory system may write the session table to a cache based on the logical address being associated with the session table. After writing the session table to the cache, the memory system may determine one or more logical-to-physical L2P tables using the session table and write the one or more L2P tables to the cache. The memory system may perform address translation for logical addresses using the L2L table.

Description

[0001] cross reference [0002] This patent application claims US Patent Application Serial No. 17 / 113,999, filed December 7, 2020, by Ambula et al., entitled "SESSION-BASED MEMORY OPERATION." Priority, said US patent application is assigned to the present assignee and expressly incorporated herein by reference in its entirety. technical field [0003] The technical field relates to session-based memory operations. Background technique [0004] Memory systems, such as those including memory devices, are widely used to store information in various electronic devices such as computers, wireless communication devices, cameras, digital displays, and the like. Information is stored by programming memory cells within a memory device to various states. For example, a binary memory cell can be programmed to one of two supported states that often correspond to a logic 1 or a logic 0. In some examples, a single memory cell may support more than two possible states, and the memory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/0811G11C16/04
CPCG06F12/0811G11C16/0483G06F2212/7201G06F2212/1024G06F12/0246G06F12/0833G06F12/0292
Inventor S·C·安布拉S·库马尔D·A·帕尔默V·K·K·马图里S·R·皮尼赛提
Owner MICRON TECH INC
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