JP7240452B2 - 不揮発性メモリの複数区画の同時アクセスのための装置及び方法 - Google Patents
不揮発性メモリの複数区画の同時アクセスのための装置及び方法 Download PDFInfo
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- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0656—Data buffering arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
- G06F3/0688—Non-volatile semiconductor memory arrays
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/08—Address circuits; Decoders; Word-line control circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/1042—Read-write modes for single port memories, i.e. having either a random port or a serial port using interleaving techniques, i.e. read-write of one part of the memory while preparing another part
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/1045—Read-write mode select circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/12—Group selection circuits, e.g. for memory block selection, chip selection, array selection
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Description
Claims (11)
- 複数の区画と複数のローカルコントローラとを含む不揮発性メモリであって、前記複数のローカルコントローラの各々が、前記複数の区画の内の個別の1つに独立してアクセスして、前記不揮発性メモリに提供されるメモリアクセスコマンドを実行するように構成され、前記複数の区画の各々が個別の複数のメモリセルを含む、前記不揮発性メモリと、
前記メモリアクセスコマンドに対する分離タイミング規則に従って前記不揮発性メモリに前記メモリアクセスコマンドを提供するように構成されたメモリコントローラであって、前記メモリコントローラは、前記複数の区画の内の第1の区画に第1の種類の第1のメモリアクセスコマンドを提供し、前記複数の区画の内の前記第1の区画に前記第1の種類の第2のメモリアクセスコマンドを提供することに応じて、前記メモリコントローラは、前記第1の種類の前記第1のメモリアクセスコマンド後の、最短で第1の時間に、前記第1の種類の前記第2のメモリアクセスコマンドを提供するように構成され、更に、前記複数の区画の内の第2の区画に前記第1の種類の前記第2のメモリアクセスコマンドを提供することに応じて、前記メモリコントローラは、前記第1の種類の前記第1のメモリアクセスコマンドの後の、最短で第2の時間に、前記第1の種類の前記第2のメモリアクセスコマンドを提供するように構成され、前記第1の時間と前記第2の時間とは異なる、前記メモリコントローラと、
を含む、装置。 - 前記複数の区画の内の前記第1の区画に第2の種類の第2のメモリアクセスコマンドを提供することに応じて、前記メモリコントローラは、前記第1の種類の前記第1のメモリアクセスコマンドの後の、最短で第3の時間に、前記第2の種類の前記第2のメモリアクセスコマンドを提供するように構成される、請求項1に記載の装置。
- 前記第1の種類の前記メモリアクセスコマンドは、読み出しメモリアクセスコマンドを含み、前記第2の種類の前記メモリアクセスコマンドは、書き込みメモリアクセスコマンドを含む、請求項2に記載の装置。
- 前記不揮発性メモリは、複数のデータバッファを更に含み、前記複数のデータバッファの内の1つのデータバッファは、前記複数の区画の内の1つの区画に結合され、前記データバッファは、前記区画に結合された、前記複数のローカルコントローラの内の1つのローカルコントローラからの信号に応じて、前記区画からのデータをラッチするように構成される、請求項1に記載の装置。
- 前記不揮発性メモリは、前記メモリアクセスコマンドを前記メモリコントローラから受信し、かつ、前記複数の区画の内の個別の目標区画を決定するように構成されたコントローラを更に含み、前記コントローラは、前記目標区画と関連付けられた、前記複数のローカルコントローラの内の1つのローカルコントローラに、前記メモリアクセスコマンドを提供するように更に構成される、請求項1に記載の装置。
- 前記不揮発性メモリの前記複数のローカルコントローラは、前記複数の区画の内の個別の1つに同時に独立してアクセスするように構成される、請求項1に記載の装置。
- 不揮発性メモリに結合されたメモリコントローラによって実行される方法であって、
第1のメモリアクセスコマンドを、前記不揮発性メモリの複数のローカルコントローラの内の第1のローカルコントローラに提供することであって、前記第1のメモリアクセスコマンドは、前記第1のローカルコントローラによって実行される際に、第1の目標区画がアクセスされるようにする、ことと、
前記第1のメモリアクセスコマンドを提供してから経過した時間が、第2のメモリアクセスコマンド及び前記第1のメモリアクセスコマンドと関連付けられた分離タイミング規則を満足するか否かを決定することであって、前記分離タイミング規則は、前記第1のメモリアクセスコマンドと関連付けられた前記不揮発性メモリの前記第1の目標区画と、前記第2のメモリアクセスコマンドと関連付けられた前記不揮発性メモリの第2の目標区画とに基づく、ことと、
前記分離タイミング規則に適合することに応じて、前記第2のメモリアクセスコマンドを、前記不揮発性メモリの前記複数のローカルコントローラの内の第2のローカルコントローラに提供することであって、前記第2のメモリアクセスコマンドは、前記第2のローカルコントローラによって実行される際に、前記第2の目標区画がアクセスされるようにする、ことと、
を含む、方法。 - 前記第1の目標区画と前記第2の目標区画とは同じ区画であり、前記第1のローカルコントローラと前記第2のローカルコントローラとは同じローカルコントローラである、請求項7に記載の方法。
- 前記第1のメモリアクセスコマンドと関連付けられた第1のコマンド種類と、前記第2のメモリアクセスコマンドと関連付けられた第2のコマンド種類とを決定することを更に含み、前記分離タイミング規則は、前記第1のコマンド種類及び前記第2のコマンド種類に更に基づく、請求項7に記載の方法。
- 前記第1のメモリアクセスコマンドを前記第1の目標区画で実行し、同時に、前記第2のメモリアクセスコマンドを前記第2の目標区画で実行すること、を更に含む、請求項7に記載の方法。
- テーブル内の前記分離タイミング規則を調べることを更に含む、請求項7に記載の方法。
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KR20180094128A (ko) | 2018-08-22 |
TWI629686B (zh) | 2018-07-11 |
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US10719237B2 (en) | 2020-07-21 |
US20200341635A1 (en) | 2020-10-29 |
WO2017123413A1 (en) | 2017-07-20 |
US11768603B2 (en) | 2023-09-26 |
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