JP2012238341A - デイジーチェーンカスケードデバイス - Google Patents
デイジーチェーンカスケードデバイス Download PDFInfo
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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
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4247—Bus transfer protocol, e.g. handshake; Synchronisation on a daisy chain bus
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4247—Bus transfer protocol, e.g. handshake; Synchronisation on a daisy chain bus
- G06F13/4256—Bus transfer protocol, e.g. handshake; Synchronisation on a daisy chain bus using a clocked protocol
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/06—Arrangements for interconnecting storage elements electrically, e.g. by wiring
- G11C5/066—Means for reducing external access-lines for a semiconductor memory clip, e.g. by multiplexing at least address and data signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/22—Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
- G06F12/0615—Address space extension
- G06F12/0623—Address space extension for memory modules
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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
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bus Control (AREA)
- Information Transfer Systems (AREA)
- Dram (AREA)
- Memory System (AREA)
- Small-Scale Networks (AREA)
- Read Only Memory (AREA)
Abstract
【解決手段】デバイスはデイジーチェーンカスケード配列で連結され、第1デバイスの出力部は、データ、アドレス及びコマンド情報等の情報並びに制御信号を第2デバイスに第1デバイスから転送するように、デイジーチェーンカスケードの後方にある第2デバイスの入力部に連結されている。デイジーチェーンで連結されたデバイスは、シリアル入力部SIとシリアル出力部SOとを備える。情報がデバイスにSIを通じて入力され、該情報がデバイスからSOを通じて出力される。デイジーチェーンカスケードの前方のデバイスのSOは、デイジーチェーンカスケードの後方のデバイスのSIに連結されている。前方のデバイスにSIを通じて入力された情報は、該デバイスのSOを通じて出力される。該情報は次いで、後方のデバイスのSIに転送される。
【選択図】図1
Description
「出力レイテンシ」はデータの出力レイテンシであり、
「N」はデイジーチェーンカスケード配列におけるデバイスの数であり、
「クロックサイクル時間」は、クロック(例えばSCLK)が動作するクロックサイクル時間である。
210 デバイス
310 デバイス
410 デバイス
510 デバイス
610 デバイス
902 IPE用の入力バッファ
904 SI用の入力バッファ
906 OPE用の入力バッファ
908 入力ラッチ制御部
910 シリアルパラレルレジスタ
912 出力ラッチ制御部
914 データレジスタ
916 アドレスレジスタ
918 コマンドインタプリタ
920 セレクタ
924 ページバッファ
926 論理和ゲート
928 出力バッファ
930 セレクタ
Claims (23)
- 半導体デバイスにおいて、
メモリと、
クロック信号を受信するように構成されたクロック入力回路と、
第1の入力イネーブル信号を受信して、デバイスからの第1の入力イネーブル信号から得られる第2の入力イネーブル信号を出力し、
第1の出力イネーブル信号を受信して、デバイスからの第1の出力イネーブル信号から得られる第2の出力イネーブル信号を出力し、
クロック信号と同期している入力データを受信して、クロック信号と同期している出力データを送信し、
かつ第1の出力イネーブル信号がアサートされている時、クロック信号と同期している出力データを送信するように構成されたデータ回路とを備えていることを特徴とする半導体デバイス。 - 前記データ回路は、
入力データを受信するように構成されたデータ入力回路と、
出力データを送信するように構成されたデータ出力回路とを有していることを特徴とする請求項1に記載の半導体デバイス。 - 前記データ入力回路は、クロック信号と同期している入力データをキャプチャするように構成されたデータキャプチャ回路を有していて、
前記データ出力回路は、クロック信号と同期している出力データを送信するように構成されたデータ送信回路を有していることを特徴とする請求項2に記載の半導体デバイス。 - 前記データキャプチャ回路は、キャプチャされた入力データをメモリに格納するように構成されていて、
データ同期は、クロック信号によって実行されることを特徴とする請求項3に記載の半導体デバイス。 - 前記データ入力回路は、入力ビットを有する入力データを受信するように構成されていて、
前記データ出力回路は、出力ビットを有する出力データを送信するように構成されていることを特徴とする請求項2に記載の半導体デバイス。 - 前記データ入力回路は、1ビットを有する入力データを受信するように構成されていて、
前記データ出力回路は、1ビットを有する出力データを送信するように構成されていることを特徴とする請求項2に記載の半導体デバイス。 - 前記入力データおよび出力データの各々は、時間当たり単一ビットを有していることを特徴とする請求項6に記載の半導体デバイス。
- 前記データキャプチャ回路は、クロック信号の各周期の間に一回入力データをキャプチャするように構成されていて、
前記データ送信回路は、クロック信号の各周期の間に一回出力データを送信するように構成されていることを特徴とする請求項3または4に記載の半導体デバイス。 - 前記データキャプチャ回路は、クロック信号の各周期の間に二回入力データをキャプチャするように構成されていて、
前記データ送信回路は、クロック信号の各周期の間に二回出力データを送信するように構成されていることを特徴とする請求項3または4に記載の半導体デバイス。 - 入力クロック信号に応じて出力クロック信号を出力するように構成されたクロック出力回路を更に備えていて、出力データは、出力クロック信号と同期して送信されることを特徴とする請求項2から9のうちのいずれか一項に記載の半導体デバイス。
- 入力クロックの遅延を調整するように構成された遅延調整回路を更に備えていることを特徴とする請求項10に記載の半導体デバイス。
- 前記遅延調整回路は、遅延ロックループを有していることを特徴とする請求項11に記載の半導体デバイス。
- 前記メモリは、不揮発性メモリを含むことを特徴とする請求項1から12のうちのいずれか一項に記載の半導体デバイス。
- 前記不揮発性メモリは、フラッシュメモリを含むことを特徴とする請求項13に記載の半導体デバイス。
- 入力データおよびクロック信号を送信するように構成された制御器と、
各々が請求項1から14のうちのいずれか一項によって定義される複数の半導体デバイスを含む装置とを備えていて、
複数の半導体デバイスのうちの1つは、複数の半導体デバイスのうちの次の半導体デバイスに出力データを送信することを特徴とするシステム。 - 複数の半導体デバイスの各々は、制御器からクロック信号を受信するように構成されていることを特徴とする請求項15に記載のシステム。
- 複数の半導体デバイスは、少なくとも第1および第2の半導体デバイスを含んでいて、第1の半導体デバイスのデータ回路は、制御器から入力データおよびクロック信号を受信するように構成されていることを特徴とする請求項15または16に記載のシステム。
- 第2の半導体デバイスのデータ回路は、メモリ制御器から直接または間接的に出力データおよびクロック信号を受信するように構成されていることを特徴とする請求項17に記載のシステム。
- 第2の半導体デバイスのデータ回路は、出力データを制御器に送信するように構成されていることを特徴とする請求項15から18のうちのいずれか一項に記載のシステム。
- 半導体デバイス内のメモリにアクセスする方法において、
クロック信号を受信するステップと、
第1の入力イネーブル信号を受信するステップと、
デバイスからの第1の入力イネーブル信号から得られる第2の入力イネーブル信号を出力するステップと、
第1の出力イネーブル信号を受信するステップと、
デバイスからの第1の出力イネーブル信号から得られる第2の出力イネーブル信号を出力するステップと、
第1の入力イネーブル信号がアサートされている時、クロック信号と同期している入力データを受信するステップと、
第1の出力イネーブル信号がアサートされている時、クロック信号と同期している出力データを送信するステップとを有していることを特徴とする方法。 - 入力データを受信するステップは、入力データをキャプチャするステップを含んでいて、
入力データをキャプチャするステップおよび出力データを送信するステップの各々は、クロック信号の各周期の間に一回または二回実行されることを特徴とする請求項20に記載の方法。 - クロック信号に応じて出力クロック信号を出力するステップを更に有していて、出力データは、出力クロック信号と同期して送信されることを特徴とする請求項20または21に記載の方法。
- 出力するステップは、クロック信号の遅延を調整して出力クロック信号を出力するステップを含んでいることを特徴とする請求項22に記載の方法。
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72236805P | 2005-09-30 | 2005-09-30 | |
| US60/722,368 | 2005-09-30 | ||
| US11/324,023 | 2005-12-30 | ||
| US11/324,023 US7652922B2 (en) | 2005-09-30 | 2005-12-30 | Multiple independent serial link memory |
| US78771006P | 2006-03-28 | 2006-03-28 | |
| US60/787,710 | 2006-03-28 | ||
| US11/496,278 | 2006-07-31 | ||
| US11/496,278 US20070076502A1 (en) | 2005-09-30 | 2006-07-31 | Daisy chain cascading devices |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009223077A Division JP5179450B2 (ja) | 2005-09-30 | 2009-09-28 | デイジーチェーンカスケードデバイス |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2012238341A true JP2012238341A (ja) | 2012-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2008532551A Withdrawn JP2009510568A (ja) | 2005-09-30 | 2006-09-29 | デイジーチェーンカスケードデバイス |
| JP2009223077A Expired - Fee Related JP5179450B2 (ja) | 2005-09-30 | 2009-09-28 | デイジーチェーンカスケードデバイス |
| JP2012198200A Pending JP2012238341A (ja) | 2005-09-30 | 2012-09-10 | デイジーチェーンカスケードデバイス |
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| JP2008532551A Withdrawn JP2009510568A (ja) | 2005-09-30 | 2006-09-29 | デイジーチェーンカスケードデバイス |
| JP2009223077A Expired - Fee Related JP5179450B2 (ja) | 2005-09-30 | 2009-09-28 | デイジーチェーンカスケードデバイス |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US20070076502A1 (ja) |
| EP (4) | EP1981032B1 (ja) |
| JP (3) | JP2009510568A (ja) |
| KR (5) | KR101506831B1 (ja) |
| CN (1) | CN102750975B (ja) |
| CA (1) | CA2627663A1 (ja) |
| ES (2) | ES2395570T3 (ja) |
| TW (2) | TWI445010B (ja) |
| WO (1) | WO2007036048A1 (ja) |
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