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Inter-IC_Bus

  • I2C總線

    I2C BUS(Inter IC BUS)是NXP 推出的芯片間串行傳輸總線,它以2 根連線實(shí)現(xiàn)了完善的雙向同步數(shù)據(jù)傳送,可以極方便地構(gòu)成多機(jī)系統(tǒng)和外圍器件擴(kuò)展系統(tǒng)。I2C 總線采用了器件地址的硬件設(shè)置方法,通過軟件尋址完全避免了器件的片選線尋址方法,從而使硬件系統(tǒng)具有最簡(jiǎn)單而靈活的擴(kuò)展方法。I2C 總線的2 根線(串行數(shù)據(jù)——SDA,串行時(shí)鐘——SCL)連接到總線上的任何一個(gè)器件,每個(gè)器件都應(yīng)有一個(gè)唯一的地址,而且都可以作為一個(gè)發(fā)送器或接收器。此外,器件在執(zhí)行數(shù)據(jù)傳輸時(shí)也可以被看作是主機(jī)或從機(jī)。

    標(biāo)簽: I2C 總線

    上傳時(shí)間: 2013-11-05

    上傳用戶:qb1993225

  • Using the P82B96 for bus inter

    The P82B96 offers many different ways in which it can be used as abus interface. In its simplest application it can be used as aninterface between bus systems operating from different supplyvoltages. Opto isolation between two bus systems is possible, andalso the availability of the Tx and Rx signals permits interfacing ofthe P82B96 with other bus systems which separate the forwardoutput path, from the backward input signal path.

    標(biāo)簽: P82B96 Using inter the

    上傳時(shí)間: 2013-10-11

    上傳用戶:洛木卓

  • P90CL301 I2C driver routines

    This application note shows how to write an Inter Integrated Circuit bus driver (I²C) for the Philips P90CL301micro-controller.It is not only an example of writing a driver, but it also includes a set of application interface software routines toquickly implement a complete I²C multi-master system application.For specific applications the user will have to make minimal changes in the driver program. Using the drivermeans linking modules to your application software and including a header-file into the application sourceprograms. A small example program of how to use the driver is listed.The driver supports i.a. polled or interrupt driven message handling, slave message transfers and multi-mastersystem applications. Furthermore, it is made suitable for use in conjunction with real time operating systems, likepSOS+.

    標(biāo)簽: routines driver P90 301

    上傳時(shí)間: 2013-11-23

    上傳用戶:weixiao99

  • XA-S3 I2C driver software

    This application note demonstrates how to write an Inter Integrated Circuit bus driver (I2C) for the XA-S3 16-bitMicrocontroller from Philips Semiconductors.Not only the driver software is given. This note also contains a set of (example) interface routines and a smalldemo application program. All together it offers the user a quick start in writing a complete I2C system applicationwith the PXAS3x.The driver routines support interrupt driven single master transfers. Furthermore, the routines are suitable foruse in conjunction with real time operating systems.

    標(biāo)簽: software driver XA-S I2C

    上傳時(shí)間: 2013-11-02

    上傳用戶:zw380105939

  • I2C slave routines for the 87L

    The 87LPC76X Microcontroller combines in a small package thebenefits of a high-performance microcontroller with on-boardhardware supporting the Inter-Integrated Circuit (I2C) bus interface.The 87LPC76X can be programmed both as an I2C bus master, aslave, or both. An overview of the I2C bus and description of the bussupport hardware in the 87LPC76X microcontrollers appears inapplication note AN464, Using the 87LPC76X Microcontroller as anI2C Bus Master. That application note includes a programmingexample, demonstrating a bus-master code. Here we show anexample of programming the microcontroller as an I2C slave.The code listing demonstrates communications routines for the87LPC76X as a slave on the I2C bus. It compliments the program inAN464 which demonstrates the 87LPC76X as an I2C bus master.One may demonstrate two 87LPC76X devices communicating witheach other on the I2C bus, using the AN464 code in one, and theprogram presented here in the other. The examples presented hereand in AN464 allow the 87LPC76X to be either a master or a slave,but not both. Switching between master and slave roles in amultimaster environment is described in application note AN435.The software for a slave on the bus is relatively simple, as theprocessor plays a relatively passive role. It does not initiate bustransfers on its own, but responds to a master initiating thecommunications. This is true whether the slave receives or transmitsdata—transmission takes place only as a response to a busmaster’s request. The slave does not have to worry about arbitrationor about devices which do not acknowledge their address. As theslave is not supposed to take control of the bus, we do not demandit to resolve bus exceptions or “hangups”. If the bus becomesinactive the processor simply withdraws, not interfering with themaster (or masters) on the bus which should (hopefully) try toresolve the situation.

    標(biāo)簽: routines slave I2C 87L

    上傳時(shí)間: 2013-11-19

    上傳用戶:shirleyYim

  • WP150-解決數(shù)兆兆位及更高的網(wǎng)絡(luò)挑戰(zhàn)

      In today’s world of modular networking and telecommunications design, it is becomingincreasingly difficult to keep alignment with the many different and often changing interfaces,both inter-board and intra-board. Each manufacturer has their own spin on the way in whichdevices are connected. To satisfy the needs of our customers, we must be able to support alltheir interface requirements. For us to be able to make products for many customers, we mustadopt a modular approach to the design. This modularity is the one issue that drives the majorproblem of shifting our bits from one modular interface to another.

    標(biāo)簽: 150 WP 兆兆 網(wǎng)絡(luò)

    上傳時(shí)間: 2013-11-25

    上傳用戶:suicone

  • 71M6541演示板用戶手冊(cè)

    The Maxim Integrated 71M6541-DB REV 3.0 Demo Board is a demonstration board for evaluating the 71M6541 device for single-phase electronic energy metering applications in conjunction with the Remote Sensor Inter-face. It incorporates a 71M6541 integrated circuit, a 71M6601 Remote Interface IC, peripheral circuitry such as a serial EEPROM, emulator port, and on-board power supply. A serial to USB converter allows communication to a PC through a USB port. The Demo Board allows the evaluation of the 71M6541 energy meter chip for measurement accuracy and overall system use.

    標(biāo)簽: 71M6541 演示板 用戶手冊(cè)

    上傳時(shí)間: 2013-11-06

    上傳用戶:雨出驚人love

  • ARM系列處理器體系結(jié)構(gòu)與指令系統(tǒng)詳解

        常用的嵌入式處理器有ARM、MIPS、PowerPC、X86、68K/Cold fire等,MIPS是Microprocessor without Inter-locked Pipeline Stages的縮寫,是由MIPS技術(shù)公司開發(fā)的一種處理器內(nèi)核標(biāo)準(zhǔn)。目前有32位和64位MIPS芯片。PowerPC是早期Motorola公司和IBM公司聯(lián)合為Apple公司的MAC機(jī)開發(fā)的CPU芯片,商標(biāo)權(quán)同時(shí)屬于IBM和Motorola兩家公司,并一度成為他們的主導(dǎo)產(chǎn)品。X86系列處理器起源于Intel架構(gòu)的8080,然后發(fā)展出286、386、486直到現(xiàn)在的奔騰處理器乃至雙核處理器等。從嵌入式市場(chǎng)來看,486DX也應(yīng)該是和ARM、68K、MIPS和SuperH齊名的5大嵌入式處理器之一。Motorola 68K是出現(xiàn)比較早的一款嵌入式處理器,采用的是CISC結(jié)構(gòu)。  

    標(biāo)簽: ARM 列處理器 指令系統(tǒng)

    上傳時(shí)間: 2013-10-22

    上傳用戶:dddddd55

  • hspice 2007下載 download

    解壓密碼:www.elecfans.com 隨著微電子技術(shù)的迅速發(fā)展以及集成電路規(guī)模不斷提高,對(duì)電路性能的設(shè)計(jì) 要求越來越嚴(yán)格,這勢(shì)必對(duì)用于大規(guī)模集成電路設(shè)計(jì)的EDA 工具提出越來越高的 要求。自1972 年美國(guó)加利福尼亞大學(xué)柏克萊分校電機(jī)工程和計(jì)算機(jī)科學(xué)系開發(fā) 的用于集成電路性能分析的電路模擬程序SPICE(Simulation Program with IC Emphasis)誕生以來,為適應(yīng)現(xiàn)代微電子工業(yè)的發(fā)展,各種用于集成電路設(shè)計(jì)的 電路模擬分析工具不斷涌現(xiàn)。HSPICE 是Meta-Software 公司為集成電路設(shè)計(jì)中 的穩(wěn)態(tài)分析,瞬態(tài)分析和頻域分析等電路性能的模擬分析而開發(fā)的一個(gè)商業(yè)化通 用電路模擬程序,它在柏克萊的SPICE(1972 年推出),MicroSim公司的PSPICE (1984 年推出)以及其它電路分析軟件的基礎(chǔ)上,又加入了一些新的功能,經(jīng) 過不斷的改進(jìn),目前已被許多公司、大學(xué)和研究開發(fā)機(jī)構(gòu)廣泛應(yīng)用。HSPICE 可 與許多主要的EDA 設(shè)計(jì)工具,諸如Candence,Workview 等兼容,能提供許多重要 的針對(duì)集成電路性能的電路仿真和設(shè)計(jì)結(jié)果。采用HSPICE 軟件可以在直流到高 于100MHz 的微波頻率范圍內(nèi)對(duì)電路作精確的仿真、分析和優(yōu)化。在實(shí)際應(yīng)用中, HSPICE能提供關(guān)鍵性的電路模擬和設(shè)計(jì)方案,并且應(yīng)用HSPICE進(jìn)行電路模擬時(shí), 其電路規(guī)模僅取決于用戶計(jì)算機(jī)的實(shí)際存儲(chǔ)器容量。 The HSPICE Integrator Program enables qualified EDA vendors to integrate their products with the de facto standard HSPICE simulator, HSPICE RF simulator, and WaveView Analyzer™. In addition, qualified HSPICE Integrator Program members have access to HSPICE integrator application programming interfaces (APIs). Collaboration between HSPICE Integrator Program members will enable customers to achieve more thorough design verification in a shorter period of time from the improvements offered by inter-company EDA design solutions.

    標(biāo)簽: download hspice 2007

    上傳時(shí)間: 2013-11-10

    上傳用戶:123312

  • hspice 2007下載 download

    解壓密碼:www.elecfans.com 隨著微電子技術(shù)的迅速發(fā)展以及集成電路規(guī)模不斷提高,對(duì)電路性能的設(shè)計(jì) 要求越來越嚴(yán)格,這勢(shì)必對(duì)用于大規(guī)模集成電路設(shè)計(jì)的EDA 工具提出越來越高的 要求。自1972 年美國(guó)加利福尼亞大學(xué)柏克萊分校電機(jī)工程和計(jì)算機(jī)科學(xué)系開發(fā) 的用于集成電路性能分析的電路模擬程序SPICE(Simulation Program with IC Emphasis)誕生以來,為適應(yīng)現(xiàn)代微電子工業(yè)的發(fā)展,各種用于集成電路設(shè)計(jì)的 電路模擬分析工具不斷涌現(xiàn)。HSPICE 是Meta-Software 公司為集成電路設(shè)計(jì)中 的穩(wěn)態(tài)分析,瞬態(tài)分析和頻域分析等電路性能的模擬分析而開發(fā)的一個(gè)商業(yè)化通 用電路模擬程序,它在柏克萊的SPICE(1972 年推出),MicroSim公司的PSPICE (1984 年推出)以及其它電路分析軟件的基礎(chǔ)上,又加入了一些新的功能,經(jīng) 過不斷的改進(jìn),目前已被許多公司、大學(xué)和研究開發(fā)機(jī)構(gòu)廣泛應(yīng)用。HSPICE 可 與許多主要的EDA 設(shè)計(jì)工具,諸如Candence,Workview 等兼容,能提供許多重要 的針對(duì)集成電路性能的電路仿真和設(shè)計(jì)結(jié)果。采用HSPICE 軟件可以在直流到高 于100MHz 的微波頻率范圍內(nèi)對(duì)電路作精確的仿真、分析和優(yōu)化。在實(shí)際應(yīng)用中, HSPICE能提供關(guān)鍵性的電路模擬和設(shè)計(jì)方案,并且應(yīng)用HSPICE進(jìn)行電路模擬時(shí), 其電路規(guī)模僅取決于用戶計(jì)算機(jī)的實(shí)際存儲(chǔ)器容量。 The HSPICE Integrator Program enables qualified EDA vendors to integrate their products with the de facto standard HSPICE simulator, HSPICE RF simulator, and WaveView Analyzer™. In addition, qualified HSPICE Integrator Program members have access to HSPICE integrator application programming interfaces (APIs). Collaboration between HSPICE Integrator Program members will enable customers to achieve more thorough design verification in a shorter period of time from the improvements offered by inter-company EDA design solutions.

    標(biāo)簽: download hspice 2007

    上傳時(shí)間: 2013-10-18

    上傳用戶:s363994250

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