JP5173818B2 - 組込みコントローラを介するフラッシュストレージの初期化 - Google Patents
組込みコントローラを介するフラッシュストレージの初期化 Download PDFInfo
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- JP5173818B2 JP5173818B2 JP2008535749A JP2008535749A JP5173818B2 JP 5173818 B2 JP5173818 B2 JP 5173818B2 JP 2008535749 A JP2008535749 A JP 2008535749A JP 2008535749 A JP2008535749 A JP 2008535749A JP 5173818 B2 JP5173818 B2 JP 5173818B2
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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
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
- G11C16/20—Initialising; Data preset; Chip identification
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
- G06F15/177—Initialisation or configuration control
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
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- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Read Only Memory (AREA)
- Stored Programmes (AREA)
- Memory System (AREA)
Description
Check Media Card Type(Command Code D0h)(SD/MMCまたはCF Mediaタイプをチェックするため)
SD/MMC Mediaについて:
Media Card SD Execute Command(Command Code D1h)
Media Card SD Host Control Command(Command Code D2h)
CF Mediaについて:
Media Card CF Send Command(Command Code D1h)
Media Card CF Data Command(Command Code D2h)
Media Card CF Status Command(Command Code D3h)
チェックメディアカードタイプコマンドは、フラッシュメモリ55のメディアタイプを識別するようにサブシステムコントローラ49に照会し、さらにSOC40のパススルーコマンドの実行をイネーブルまたはディスエーブルする(すなわち、ディスエーブルされたとき、コマンドコードD1hなどはパススルーコマンドとして解釈されない)。
Claims (11)
- 中央演算処理装置と、前記中央演算処理装置と別個の組み込み不揮発性メモリサブシステムコントローラと、外部インターフェースとを含むシステムオンチップ(SOC)集積回路からなるデジタルシステムの不揮発性メモリサブシステムを初期化する方法であって、
前記デジタルシステムの不揮発性メモリサブシステムの初期化シーケンスが、
前記SOC集積回路の中央演算処理装置をパワーアップするステップと、
前記中央演算処理装置で、システム読取り専用メモリに格納された少なくとも1つのブートシーケンス命令を実行して、アプリケーションプログラムが常駐しているかどうかを検出するように1つまたは複数の不揮発性メモリアレイに照会するステップと、
アプリケーションプログラムが前記1つまたは複数の不揮発性メモリアレイ内に常駐していないと判定したことに応答して、前記外部インターフェースを介して1つまたは複数の初期化コマンドをダウンロードするステップと、
前記SOC集積回路の外部インターフェースと前記SOC集積回路の組み込み不揮発性メモリサブシステムコントローラとの間の通信チャネルを開くステップと、
前記外部インターフェースに印加され、前記通信チャネルを介して前記組込み不揮発性メモリサブシステムコントローラに通信される初期化コマンドに従って、前記デジタルシステム内の前記1つまたは複数の不揮発性メモリアレイを初期化するステップと、
を含む方法。 - 前記初期化シーケンスを実行するするステップが、前記SOC集積回路の中央演算処理装置を操作して、システムプログラムメモリに格納された前記1つまたは複数の初期化コマンドを実行するステップを含む請求項1に記載の方法。
- 前記1つまたは複数の不揮発性メモリアレイを初期化するステップが、
ファイルシステムに従って前記1つまたは複数の不揮発性メモリアレイをフォーマットするステップを含む請求項1に記載の方法。 - 前記1つまたは複数の不揮発性メモリアレイを初期化するステップが、
前記中央演算処理装置によって実行可能なアプリケーションソフトウェアプログラムを前記1つまたは複数の不揮発性メモリアレイにロードするステップをさらに含む請求項3に記載の方法。 - 前記1つまたは複数の不揮発性メモリアレイを初期化するステップが、
アプリケーションデータを前記1つまたは複数の不揮発性メモリアレイに事前ロードするステップをさらに含む請求項4に記載の方法。 - 前記1つまたは複数の不揮発性メモリアレイを初期化するステップが、
前記組込み不揮発性メモリサブシステムコントローラ用のシステムファームウェアを更新するステップを含む請求項1に記載の方法。 - 前記1つまたは複数の初期化コマンドをダウンロードするステップが、
前記1つまたは複数の初期化コマンドをシステムランダムアクセスメモリに格納するステップを含み、
前記不揮発性メモリサブシステムの初期化シーケンスを実行するステップが、
前記システムランダムアクセスメモリから前記1つまたは複数の初期化コマンドを取り出すステップと、
取り出した前記1つまたは複数の初期化コマンドを実行するステップとを含む請求項2に記載の方法。 - アプリケーションプログラムが前記1つまたは複数の不揮発性メモリアレイ内に常駐していると判定したことに応答して、前記アプリケーションプログラムを前記中央演算処理装置で実行するステップをさらに含む請求項1に記載の方法。
- 前記1つまたは複数の不揮発性メモリアレイが1つまたは複数のフラッシュメモリアレイを含む請求項1に記載の方法。
- 前記外部インターフェースにホストシステムを接続するステップをさらに含み、
前記初期化するステップが、ホストシステムによって前記外部インターフェースを介して実施される請求項1に記載の方法。 - 中央演算処理装置と、前記中央演算処理装置と別個の組み込み不揮発性メモリサブシステムコントローラと、外部インターフェースとを含むシステムオンチップ(SOC)集積回路からなるデジタルシステムの不揮発性メモリサブシステムを初期化するシステムであって、
前記デジタルシステムの不揮発性メモリサブシステムの初期化システムが、
前記SOC集積回路の中央演算処理装置をパワーアップする手段と、
前記中央演算処理装置で、システム読取り専用メモリに格納された少なくとも1つのブートシーケンス命令を実行して、アプリケーションプログラムが常駐しているかどうかを検出するように1つまたは複数の不揮発性メモリアレイに照会する手段と、
アプリケーションプログラムが前記1つまたは複数の不揮発性メモリアレイ内に常駐していないと判定したことに応答して、前記外部インターフェースを介して1つまたは複数の初期化コマンドをダウンロードする手段と、
前記SOC集積回路の外部インターフェースと前記SOC集積回路の組み込み不揮発性メモリサブシステムコントローラとの間の通信チャネルを開く手段と、
前記外部インターフェースに印加され、前記通信チャネルを介して前記組込み不揮発性メモリサブシステムコントローラに通信される初期化コマンドに従って、前記デジタルシステム内の前記1つまたは複数の不揮発性メモリアレイを初期化する手段と、
を含むシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US11/250,094 | 2005-10-13 | ||
US11/250,094 US7640424B2 (en) | 2005-10-13 | 2005-10-13 | Initialization of flash storage via an embedded controller |
PCT/US2006/040239 WO2007044926A2 (en) | 2005-10-13 | 2006-10-12 | Initialization of flash storage via an embedded controller |
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JP2012177054A Division JP2012234568A (ja) | 2005-10-13 | 2012-08-09 | 組込みコントローラを介するフラッシュストレージの初期化 |
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JP2009512076A JP2009512076A (ja) | 2009-03-19 |
JP5173818B2 true JP5173818B2 (ja) | 2013-04-03 |
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JP2008535749A Active JP5173818B2 (ja) | 2005-10-13 | 2006-10-12 | 組込みコントローラを介するフラッシュストレージの初期化 |
JP2012177054A Pending JP2012234568A (ja) | 2005-10-13 | 2012-08-09 | 組込みコントローラを介するフラッシュストレージの初期化 |
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US (2) | US7640424B2 (ja) |
EP (2) | EP1938200B1 (ja) |
JP (2) | JP5173818B2 (ja) |
KR (1) | KR20080075110A (ja) |
CN (1) | CN101313287B (ja) |
TW (1) | TWI408597B (ja) |
WO (1) | WO2007044926A2 (ja) |
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JP2009512076A (ja) | 2009-03-19 |
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EP1938200B1 (en) | 2013-11-20 |
US20070088940A1 (en) | 2007-04-19 |
WO2007044926A2 (en) | 2007-04-19 |
CN101313287A (zh) | 2008-11-26 |
JP2012234568A (ja) | 2012-11-29 |
EP1938200A2 (en) | 2008-07-02 |
CN101313287B (zh) | 2013-05-08 |
US20100070693A1 (en) | 2010-03-18 |
TW200745932A (en) | 2007-12-16 |
TWI408597B (zh) | 2013-09-11 |
KR20080075110A (ko) | 2008-08-14 |
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