JP4657637B2 - バス接続を介してのランダムアクセスのための方法およびデータ構造 - Google Patents
バス接続を介してのランダムアクセスのための方法およびデータ構造 Download PDFInfo
- Publication number
- JP4657637B2 JP4657637B2 JP2004198460A JP2004198460A JP4657637B2 JP 4657637 B2 JP4657637 B2 JP 4657637B2 JP 2004198460 A JP2004198460 A JP 2004198460A JP 2004198460 A JP2004198460 A JP 2004198460A JP 4657637 B2 JP4657637 B2 JP 4657637B2
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- Prior art keywords
- data
- slave
- bus
- master
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- 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
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
- G06F13/4291—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a clocked protocol
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Transfer Systems (AREA)
- Communication Control (AREA)
- Memory System (AREA)
Description
Microchip Technology Inc., AN736
Claims (3)
- I2Cバス接続を介して接続された装置内のセルにアクセスするための方法であって、
該I2Cバス接続では、データ信号を供給するデータ線路と、クロック信号を供給するクロック信号とが設けられており、
前記I2Cバスに接続された前記装置を装置アドレスによって識別し、
第1の装置は、I2Cバス接続をセットアップするために開始条件を形成し、後続の通信においてマスタとなり、
該マスタによって、第2の装置を装置アドレスによって選択し、
該第2の装置は、後続の通信にてスレーブとなり、
該マスタによって、読み出しまたは書き込みの伝送モードを選択し、
通信が成功した後、該マスタによって、I2Cバス接続を終了する終了条件を形成する形式の方法において、
該マスタによって、スレーブをアドレシングした後にデータモード信号を、前記I2Cバスを介して送信し、
前記データモード信号には、前記アドレシングされたスレーブ装置内のセルアドレスを構成するためのセルアドレスバイトの数と、その後送信すべきデータバイトの数とに関する情報が含まれており、
前記セルアドレスを形成するバイトを含むセルアドレス信号が前記I2Cバスを介して送信され、
前記マスタは、前記データモード信号に従って、前記スレーブへデータを送信し、および/または前記スレーブからデータを受信するように制御する、
ことを特徴とする方法。 - 前記データモード信号およびアドレスセル信号の伝送後、スレーブにデータを書き込み、またはスレーブからデータを読み出す、請求項1記載の方法。
- 前記マスタ又は前記スレーブは、前記データの各バイトが受信された後に肯定応答信号を生成し送信する、請求項1記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03291646A EP1494125A1 (en) | 2003-07-03 | 2003-07-03 | Method and data structure for random access via a bus connection |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005025767A JP2005025767A (ja) | 2005-01-27 |
JP2005025767A5 JP2005025767A5 (ja) | 2007-08-16 |
JP4657637B2 true JP4657637B2 (ja) | 2011-03-23 |
Family
ID=33427261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004198460A Expired - Fee Related JP4657637B2 (ja) | 2003-07-03 | 2004-07-05 | バス接続を介してのランダムアクセスのための方法およびデータ構造 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7302509B2 (ja) |
EP (1) | EP1494125A1 (ja) |
JP (1) | JP4657637B2 (ja) |
KR (1) | KR101068936B1 (ja) |
CN (1) | CN100440187C (ja) |
DE (1) | DE602004008545T2 (ja) |
TW (1) | TWI366752B (ja) |
Families Citing this family (25)
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US6993619B2 (en) * | 2003-03-28 | 2006-01-31 | International Business Machines Corporation | Single request data transfer regardless of size and alignment |
JP4791696B2 (ja) * | 2004-03-02 | 2011-10-12 | オンセミコンダクター・トレーディング・リミテッド | データ転送メモリ及びモジュール |
DE602006012476D1 (de) * | 2005-04-29 | 2010-04-08 | Nxp Bv | Einrichtungsidentifikationscodierung integrierter slave-schaltungseinrichtungen |
US20060294275A1 (en) * | 2005-06-23 | 2006-12-28 | Emil Lambrache | Fast two wire interface and protocol for transferring data |
US7526526B2 (en) * | 2005-10-06 | 2009-04-28 | Aviom, Inc. | System and method for transferring data |
US20070136500A1 (en) * | 2005-12-12 | 2007-06-14 | Innolux Display Corp. | Controlling system using inter integrated circuit bus having single clock line |
US20070250652A1 (en) * | 2006-04-24 | 2007-10-25 | Atmel Corporation | High speed dual-wire communications device requiring no passive pullup components |
KR100778114B1 (ko) * | 2006-09-18 | 2007-11-21 | 삼성전자주식회사 | 통신에러를 개선하기 위한 통신방법 및 그 통신방법이적용된 전자장치 |
CN101399654B (zh) * | 2007-09-25 | 2011-08-03 | 华为技术有限公司 | 一种串行通信方法和装置 |
US20090119420A1 (en) * | 2007-11-06 | 2009-05-07 | International Business Machines Corporation | Apparatus and method for scaleable expanders in systems management |
CN101763331B (zh) * | 2010-01-18 | 2014-04-09 | 中兴通讯股份有限公司 | 一种实现i2c总线控制的***及方法 |
CN102378048B (zh) * | 2010-08-13 | 2015-03-11 | 国基电子(上海)有限公司 | 电视机顶盒及其自动待机方法 |
US20130019039A1 (en) * | 2011-06-10 | 2013-01-17 | Intersil Americas LLC | System and method for operating a one-wire protocol slave in a two-wire protocol bus environment |
CN103530249B (zh) * | 2012-07-06 | 2016-08-03 | 鸿富锦精密工业(深圳)有限公司 | 内部整合电路总线传输***及其传输方法 |
CN102902647B (zh) * | 2012-09-25 | 2015-09-30 | 华为技术有限公司 | 设置在i2c从机印刷电路板的asic芯片和印刷电路板 |
US8989328B2 (en) * | 2013-03-14 | 2015-03-24 | Qualcomm Incorporated | Systems and methods for serial communication |
JP2014087625A (ja) * | 2013-09-30 | 2014-05-15 | Sophia Co Ltd | 遊技機 |
WO2016068962A1 (en) * | 2014-10-31 | 2016-05-06 | Hewlett Packard Enterprise Development Lp | Indicating a privilege level |
US20170293478A1 (en) * | 2016-04-11 | 2017-10-12 | Tyco Fire & Security Gmbh | Fire detection system with automatic firmware updating |
US10860541B2 (en) | 2016-04-11 | 2020-12-08 | Johnson Controls Fire Protection LP | Fire detection system with distributed file system |
TWI834603B (zh) * | 2017-02-14 | 2024-03-11 | 日商索尼半導體解決方案公司 | 通信裝置、通信方法、通信程式及通信系統 |
FR3065304A1 (fr) * | 2017-04-12 | 2018-10-19 | Stmicroelectronics (Rousset) Sas | Procede d'adressage d'une memoire non-volatile sur un bus i²c et dispositif de memoire correspondant |
CN110223620B (zh) | 2018-03-01 | 2022-07-22 | 京东方科技集团股份有限公司 | 驱动控制方法、组件及显示装置 |
CN112416841A (zh) * | 2020-11-10 | 2021-02-26 | 光华临港工程应用技术研发(上海)有限公司 | 基于i2c总线的多机通信的实现方法及多机通信*** |
CN112463662B (zh) * | 2020-12-16 | 2024-04-05 | 福州创实讯联信息技术有限公司 | 一种用户态控制i2c设备的方法与终端 |
Citations (2)
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JPH05204848A (ja) * | 1991-11-29 | 1993-08-13 | Sony Corp | シリアル通信方式 |
JP2002189697A (ja) * | 2000-12-22 | 2002-07-05 | Ricoh Co Ltd | データ転送システム、及び、データ転送方式 |
Family Cites Families (9)
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FR2680589A1 (fr) * | 1991-08-19 | 1993-02-26 | France Telecom | Procede d'emission et de reception de programmes personnalises. |
JP3168552B2 (ja) * | 1993-12-17 | 2001-05-21 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | メモリ・アクセス制御システム及びその方法 |
US5732404A (en) * | 1996-03-29 | 1998-03-24 | Unisys Corporation | Flexible expansion of virtual memory addressing |
US5897663A (en) * | 1996-12-24 | 1999-04-27 | Compaq Computer Corporation | Host I2 C controller for selectively executing current address reads to I2 C EEPROMs |
KR100224965B1 (ko) * | 1997-07-10 | 1999-10-15 | 윤종용 | 다층 구조의 아이2씨 버스를 이용한 진단/제어 시스템 |
US6209074B1 (en) * | 1998-04-28 | 2001-03-27 | International Business Machines Corporation | Address re-mapping for memory module using presence detect data |
US6449289B1 (en) * | 1998-10-09 | 2002-09-10 | Adaptec, Inc. | Multi-processor bus protocol system |
GB2401207B (en) * | 2003-04-30 | 2006-11-22 | Agilent Technologies Inc | Master slave arrangement |
US7187307B1 (en) * | 2003-06-12 | 2007-03-06 | Silicon Image, Inc. | Method and system for encapsulation of multiple levels of communication protocol functionality within line codes |
-
2003
- 2003-07-03 EP EP03291646A patent/EP1494125A1/en not_active Withdrawn
-
2004
- 2004-05-07 DE DE602004008545T patent/DE602004008545T2/de not_active Expired - Lifetime
- 2004-06-30 US US10/882,071 patent/US7302509B2/en active Active
- 2004-07-01 KR KR1020040051079A patent/KR101068936B1/ko active IP Right Grant
- 2004-07-01 TW TW093119867A patent/TWI366752B/zh not_active IP Right Cessation
- 2004-07-05 JP JP2004198460A patent/JP4657637B2/ja not_active Expired - Fee Related
- 2004-07-05 CN CNB2004100629429A patent/CN100440187C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05204848A (ja) * | 1991-11-29 | 1993-08-13 | Sony Corp | シリアル通信方式 |
JP2002189697A (ja) * | 2000-12-22 | 2002-07-05 | Ricoh Co Ltd | データ転送システム、及び、データ転送方式 |
Also Published As
Publication number | Publication date |
---|---|
TWI366752B (en) | 2012-06-21 |
US20050005049A1 (en) | 2005-01-06 |
TW200510989A (en) | 2005-03-16 |
CN1577308A (zh) | 2005-02-09 |
EP1494125A1 (en) | 2005-01-05 |
KR20050004062A (ko) | 2005-01-12 |
CN100440187C (zh) | 2008-12-03 |
DE602004008545T2 (de) | 2007-12-27 |
KR101068936B1 (ko) | 2011-09-30 |
DE602004008545D1 (de) | 2007-10-11 |
JP2005025767A (ja) | 2005-01-27 |
US7302509B2 (en) | 2007-11-27 |
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