JP2009531747A - フラッシュメモリシステムコントロールスキーム - Google Patents
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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
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- 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
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
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- G11C16/10—Programming or data input circuits
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- 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
- G11C16/32—Timing 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
- G11C7/1018—Serial bit line access mode, e.g. using bit line address shift registers, bit line address counters, bit line burst counters
- G11C7/1021—Page serial bit line access mode, i.e. using an enabled row address stroke pulse with its associated word line address and a sequence of enabled column address stroke pulses each with its associated bit line address
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/10—Providing a specific technical effect
- G06F2212/1032—Reliability improvement, data loss prevention, degraded operation etc
- G06F2212/1036—Life time enhancement
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7211—Wear leveling
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/22—Nonvolatile memory in which reading can be carried out from one memory bank or array whilst a word or sector in another bank or array is being erased or programmed simultaneously
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/24—Nonvolatile memory in which programming can be carried out in one memory bank or array whilst a word or sector in another bank or array is being erased simultaneously
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Abstract
データの高速プログラムは、データの種々のページが異なるメモリ装置に格納されるように、システム内のメモリ装置にプログラムされるべきデータのページをインターリーブすることによって行われる。メモリコントローラは、各メモリ装置にプログラム命令を発する。各メモリ装置は、プログラム命令を受け取るとき、プログラム動作を開始するか命令を次のメモリ装置へ渡す。それ故、フラッシュシステムのメモリ装置は、次から次にデータのページを連続的にプログラムし、これにより、フラッシュメモリシステムにデータの各ページをプログラムする遅延をできるだけ小さくする。メモリコントローラは、各メモリ装置の耐久性を最大限にし、あるいはあらゆるサイズのデータのプログラム性能と耐久性を最適化する損耗レベルアルゴリズムを実行することができる。
【選択図】 図4
Description
フラッシュメモリ装置106、108、110、112は、それぞれプログラム命令Data[0]、Data[1]、Data[2]、Data[3]に応答する。フラッシュメモリ装置は、直列に接続され、プログラム命令が直列に発せされるので、各フラッシュメモリ装置のコアのプログラム動作は、次のフラッシュメモリ装置の動作と重複するが、プログラム命令を受け取る最後のフラッシュメモリ装置は除かれる。
Claims (25)
- チャンネルに接続された第1および第2のフラッシュメモリ装置を制御する方法であって、
a)第1の命令に応答して第1のフラッシュメモリ装置において第1の動作を実行し、
b)第1のフラッシュメモリ装置が第1の動作を実行している間に、第2の命令に応答して第2のフラッシュメモリ装置において第2の動作を開始する、
方法。 - 第1のフラッシュメモリ装置および第2のフラッシュメモリ装置は、互いに直列に接続され、第2の命令は、前記開始するステップの前に第1のフラッシュメモリ装置を介して第2のフラッシュメモリ装置に渡される、請求項1に記載の方法。
- 前記第1の動作の実行は、第1のフラッシュメモリ装置にデータファイルの少なくとも1ページをプログラムすることを含む、請求項1に記載の方法。
- 前記第2の動作の開始は、第2のフラッシュメモリ装置にデータファイルの少なくとも1つの他のページのプログラムの開始を含む、請求項3に記載の方法。
- 方法はさらに、第3の命令に応答して第1のフラッシュメモリ装置において第3の動作を開始することを含む、請求項4に記載の方法。
- 前記第2の動作の開始は、第2のフラッシュメモリ装置のデータの読出し動作の開始を含む、請求項3に記載の方法。
- 前記第2の動作の開始は、第2のフラッシュメモリ装置の消去動作の開始を含む、請求項3に記載の方法。
- 前記第1の動作の実行は、第1のフラッシュメモリ装置の読出し動作および消去動作の1つを含む、請求項1に記載の方法。
- 複数のフラッシュメモリ装置を有するフラッシュメモリシステムを高速損耗レベルプログラムする方法であって、
i kページを有するデータファイルを受け取り、kページは0よりも大きい整数であり、
ii フラッシュメモリシステムの構成パラメータとkサイズに対応するプログラムプロファイルを選択し、
iii 選択されたプログラムプロファイルに従い、データファイルのkページの少なくとも1つを複数のフラッシュメモリ装置の少なくとも2つの各々にプログラムする、
方法 - 前記構成パラメータは、jフラッシュメモリ装置を含み、jフラッシュメモリ装置の各々はブロックにつきiページを有し、jとiは0よりも大きい整数である、請求項9に記載の方法。
- 前記選択するステップは、zの天井関数の計算を含み、z=k/jである、請求項10に記載の方法。
- 前記プロファイルのプログラムは、zがj以下であるとき、jフラッシュメモリ装置のzのデータファイルのkページを格納するため単一のファイル構造を含む、請求項11に記載の方法。
- プログラムするステップは、kページをプログラムするためzフラッシュメモリ装置の各々にプログラム命令を連続的に提供し、各プログラム命令は、kページの少なくとも1つをプログラムする、請求項12に記載の方法。
- プログラムプロファイルは、zがjより大きいとき、多重ファイル構造を含む、請求項11に記載の方法。
- 多重ファイル構造は、jフラッシュメモリ装置のデータファイルのj*iページのmユニットを格納すること、zがj以下のときjフラッシュメモリ装置のzのデータファイルのk−(m*(j*i))ページを格納することを含み、mは0より大きい整数である、請求項14に記載の方法。
- プログラムするステップは、データファイルのj*iページをプログラムするためjフラッシュメモリ装置の各々にプログラム命令を連続的に提供し、各プログラム命令がkページの少なくとも1つをプログラムする、請求項15に記載の方法。
- プログラムするステップは、k−(m*(j*i))ページをプログラムするためzフラッシュメモリ装置の各々に連続的にプログラム命令を提供し、各プログラム命令は、kページの少なくとも1つをプログラムする、請求項16に記載の方法。
- 同じチャンネルに接続された少なくとも2つのメモリ装置を有するメモリシステムのデータファイル構造であって、
少なくとも2つのメモリ装置の2つに格納されるデータファイルの部分を有する、データファイル構造。 - 前記部分は、実質的に互いにサイズが等しい、請求項18に記載のデータファイル構造。
- 前記部分は、メモリシステムの少なくとも2つのメモリ装置の各々に格納される、請求項18に記載のデータファイル構造。
- jフラッシュメモリ装置を有するフラッシュメモリシステムの高速損耗レベルプログラム方法であって、jフラッシュメモリ装置の各々はブロックにつきiページを有し、jとiは0より大きい整数である、前記方法は、
a)kページを有するデータファイルを受け取り、kは、0よりも大きい整数であり、
b)z=k/iの天井関数がj以下であるならば、jメモリ装置のz以内のkページをプログラムする命令を提供し、
c)z=k/iの天井関数がjよりも大きいならば、jメモリ装置内のj*iページをプログラムする命令を提供し、
d)k=k−(j*i)によってkを更新し、
e)ステップbを繰り返す、
方法。 - フラッシュメモリシステムであって、
第1の命令および第2の命令を提供するチャンネルを有するコントローラと、
チャンネルに結合され、第1の命令に応答して第1の動作を実行する第1のフラッシュメモリ装置と、
チャンネルに結合され、第1のフラッシュメモリ装置が第1の動作を実行している間に、第2の命令に応答して第2の動作を開始する第2のフラッシュメモリ装置と、
を有するフラッシュメモリシステム。 - 第1のフラッシュメモリ装置および第2のフラッシュメモリ装置は互いに直列に接続され、第2の命令は、第1のフラッシュメモリ装置を介して第2のフラッシュメモリ装置へ渡される、請求項22に記載の方法。
- 第1の動作は、プログラム動作を含み、第1のフラッシュメモリ装置はデータファイルの少なくとも1ページをプログラムする、請求項22に記載の方法。
- 第2の動作は、別のプログラム動作を含み、第2のフラッシュメモリ装置は、データファイルの少なくとも1つの他のページをプログラムする、請求項24に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US78808306P | 2006-03-31 | 2006-03-31 | |
US60/788,083 | 2006-03-31 | ||
PCT/CA2007/000501 WO2007112555A1 (en) | 2006-03-31 | 2007-03-29 | Flash memory system control scheme |
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JP2009531747A true JP2009531747A (ja) | 2009-09-03 |
JP2009531747A5 JP2009531747A5 (ja) | 2011-04-07 |
JP5214587B2 JP5214587B2 (ja) | 2013-06-19 |
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JP2009501801A Expired - Fee Related JP5214587B2 (ja) | 2006-03-31 | 2007-03-29 | フラッシュメモリシステムコントロールスキーム |
Country Status (10)
Country | Link |
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US (2) | US7802064B2 (ja) |
EP (2) | EP2002442B1 (ja) |
JP (1) | JP5214587B2 (ja) |
KR (1) | KR101194965B1 (ja) |
CN (2) | CN102063931B (ja) |
AT (1) | ATE488009T1 (ja) |
DE (1) | DE602007010439D1 (ja) |
ES (1) | ES2498096T3 (ja) |
TW (2) | TW201445576A (ja) |
WO (1) | WO2007112555A1 (ja) |
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TW200805396A (en) | 2008-01-16 |
CN101410906A (zh) | 2009-04-15 |
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US20070233939A1 (en) | 2007-10-04 |
DE602007010439D1 (de) | 2010-12-23 |
KR20090017494A (ko) | 2009-02-18 |
CN102063931B (zh) | 2014-07-30 |
KR101194965B1 (ko) | 2012-10-25 |
EP2002442A1 (en) | 2008-12-17 |
US20100325353A1 (en) | 2010-12-23 |
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TWI456582B (zh) | 2014-10-11 |
EP2002442B1 (en) | 2010-11-10 |
JP5214587B2 (ja) | 2013-06-19 |
CN101410906B (zh) | 2015-04-29 |
CN102063931A (zh) | 2011-05-18 |
ATE488009T1 (de) | 2010-11-15 |
ES2498096T3 (es) | 2014-09-24 |
EP2242058A2 (en) | 2010-10-20 |
TW201445576A (zh) | 2014-12-01 |
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LAPS | Cancellation because of no payment of annual fees |