PCI 9656是PLX公司設(shè)計(jì)的一款高速PCI I/O芯片，可應(yīng)用于66MHz、64bit PCI和CompactPCI總線。文章簡(jiǎn)述了PCI 9656的主要功能，介紹了一種應(yīng)用PCI 9656的CompactPCI數(shù)據(jù)接收卡設(shè)計(jì)。設(shè)計(jì)中采用MAXII系列CPLD建立了PCI 9656與FIFO間的數(shù)據(jù)通道，可滿足高速數(shù)據(jù)傳輸?shù)囊蟆?/p>
標(biāo)簽： 9656 PCI 數(shù)據(jù)接收
上傳時(shí)間： 2014-11-28
上傳用戶：1184599859
PCI總線是Pentium主機(jī)最常見的總線,基于PCI總線形成的CompactPCI和PXI總線廣泛地應(yīng)用在儀器和自動(dòng)化領(lǐng)域。PCI適配卡的接口設(shè)計(jì)變得越來(lái)越重要。本文對(duì)PCI專用接口電路PCI9052的功能進(jìn)行了研究與分析,并給出了一個(gè)應(yīng)用實(shí)例設(shè)計(jì)。
上傳時(shí)間： 2013-11-02
上傳用戶：unmwq
一、版權(quán)信息PCI-51XX系列智能CAN接口卡及相關(guān)軟件均屬?gòu)V州市周立功單片機(jī)發(fā)展有限公司所有，其產(chǎn)權(quán)受國(guó)家法律絕對(duì)保護(hù)，未經(jīng)本公司授權(quán)，其他公司、單位、代理商及個(gè)人不得非法使用和拷貝，否則將受到國(guó)家法律的嚴(yán)厲制裁。您若需要我公司產(chǎn)品及相關(guān)信息，請(qǐng)及時(shí)與我們聯(lián)系，我們將熱情接待。廣州周立功單片機(jī)發(fā)展有限公司保留在任何時(shí)候修訂本用戶手冊(cè)且不需通知的權(quán)利。 二、功能特點(diǎn)PCI-51XX智能CAN接口卡是具有PCI接口的高性能CAN總線通訊適配卡，它使PC機(jī)方便地連接到CAN總線上，實(shí)現(xiàn)CAN2.0B協(xié)議的數(shù)據(jù)通訊。PCI-51XX智能CAN接口卡采用標(biāo)準(zhǔn)PCI接口，實(shí)現(xiàn)與主機(jī)PC的高速數(shù)據(jù)交換。接口卡上自帶光電隔離模塊，使PC機(jī)避免由于地環(huán)流的損壞，增強(qiáng)系統(tǒng)在惡劣環(huán)境中使用的可靠性。PCI-51XX智能CAN接口卡配有可在Win98/Me、Win2000/XP下工作的驅(qū)動(dòng)程序，使用通用CAN接口庫(kù)，使開發(fā)簡(jiǎn)單化，并包含在VC++、C++Builder、Delphi、VB下開發(fā)的詳細(xì)應(yīng)用例程。
上傳時(shí)間： 2013-10-08
上傳用戶：wangyi39
關(guān)鍵詞 PCI的總線協(xié)議，數(shù)據(jù)傳輸摘 要本文檔介紹通過(guò) Actel Flash 的FPGA 來(lái)實(shí)現(xiàn)PCI 的橋接芯片的功能
上傳時(shí)間： 2013-10-08
上傳用戶：kongrong
詳細(xì)闡述一種利用CPLD 實(shí)現(xiàn)的8 位單片機(jī)與PCI 設(shè)備間的通信接口方案，給出用ABEL HDL編寫的主要源程序。該方案在實(shí)踐中檢驗(yàn)通過(guò)。
標(biāo)簽： CPLD PCI 單片機(jī) 接口設(shè)計(jì)
上傳時(shí)間： 2013-10-30
上傳用戶：yeling1919
In this document, the term Ô60xÕ is used to denote a 32-bit microprocessor from the PowerPC architecture family that conforms to the bus interface of the PowerPC 601ª, PowerPC 603ª, or PowerPC 604 microprocessors. Note that this does not include the PowerPC 602ª microprocessor which has a multiplexed address/data bus. 60x processors implement the PowerPC architecture as it is speciÞed for 32-bit addressing, which provides 32-bit effective (logical) addresses, integer data types of 8, 16, and 32 bits,and ßoating-point data types of 32 and 64 bits (single-precision and double-precision).1.1 Overview The MPC106 provides an integrated high-bandwidth, high-performance, TTL-compatible interface between a 60x processor, a secondary (L2) cache or additional (up to four total) 60x processors, the PCI bus,and main memory. This section provides a block diagram showing the major functional units of the 106 and describes brießy how those units interact.Figure 1 shows the major functional units within the 106. Note that this is a conceptual block diagram intended to show the basic features rather than an attempt to show how these features are physically implemented on the device.
標(biāo)簽： Bridge Memory Contr MPC
上傳時(shí)間： 2013-10-08
上傳用戶：18711024007
The Motorola MPC106 PCI bridge/memory controller provides a PowerPCªmicroprocessor common hardware reference platform (CHRPª) compliant bridgebetween the PowerPC microprocessor family and the Peripheral Component Interconnect(PCI) bus. In this document, the term Ô106Õ is used as an abbreviation for the phraseÔMPC106 PCI bridge/memory controllerÕ. This document contains pertinent physicalcharacteristics of the 106. For functional characteristics refer to theMPC106 PCI Bridge/Memory Controller UserÕs Manual.This document contains the following topics:Topic PageSection 1.1, ÒOverviewÓ 2Section 1.2, ÒFeaturesÓ 3Section 1.3, ÒGeneral ParametersÓ 5Section 1.4, ÒElectrical and Thermal CharacteristicsÓ 5Section 1.5, ÒPin AssignmentsÓ 17Section 1.6, ÒPinout Listings 18Section 1.7, ÒPackage DescriptionÓ 22Section 1.8, ÒSystem Design InformationÓ 24Section 1.9, ÒDocument Revision HistoryÓ 29Section 1.10, ÒOrdering InformationÓ 29
標(biāo)簽： MPC 106 PCI 存儲(chǔ)器
上傳時(shí)間： 2013-11-04
上傳用戶：as275944189
通用的多電源總線，如VME、VXI 和PCI 總線，都可提供功率有限的3.3V、5V 和±12V（或±24V）電源，如果在這些系統(tǒng)中添加設(shè)備（如插卡等），則需要額外的3.3V或5V電源，這個(gè)電源通常由負(fù)載較輕的-12V電源提供。圖1 電路，將-12V 電壓升壓到15.3V（相對(duì)于-12V 電壓），進(jìn)而得到3.3V 的電源電壓，輸出電流可達(dá)300mA。Q2 將3.3V 電壓轉(zhuǎn)換成適當(dāng)?shù)碾妷海?10.75V）反饋給IC1 的FB 引腳，PWM 升壓控制器可提供1W 的輸出功率，轉(zhuǎn)換效率為83%。整個(gè)電路大約占6.25Cm2的線路板尺寸，適用于依靠臺(tái)式PC機(jī)電源供電，需要提供1W輸出功率的應(yīng)用，這種應(yīng)用中，由于-12V總線電壓限制在1.2W以內(nèi)，因此需要保證高于83%的轉(zhuǎn)換效率。由于限流電阻（RSENSE）將峰值電流限制在120mA，N 溝道MOSFET（Q1）可選用廉價(jià)的邏輯電平驅(qū)動(dòng)型場(chǎng)效應(yīng)管，R1、R2 設(shè)置輸出電壓（3.3V 或5V）。IC1 平衡端（Pin5）的反饋電壓高于PGND引腳（Pin7）1.25V，因此：VFB = -12V + 1.25V = - 10.75V選擇電阻R1后，可確定：I2 = 1.25V / R1 = 1.25V / 12.1kΩ = 103μA可由下式確定R2：R2 = （VOUT - VBE）/ I2 =（3.3V - 0.7V）/ 103μA = 25.2 kΩ圖1 中，IC1 的開關(guān)頻率允許通過(guò)外部電阻設(shè)置，頻率范圍為100kHz 至500kHz，有利于RF、數(shù)據(jù)采集模塊等產(chǎn)品的設(shè)計(jì)。當(dāng)選擇較高的開關(guān)頻率時(shí)，能夠保證較高的轉(zhuǎn)換效率，并可選用較小的電感和電容。為避免電流倒流，可在電路中增加一個(gè)與R1串聯(lián)的二極管。
上傳時(shí)間： 2013-10-17
上傳用戶：jixingjie
This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System
標(biāo)簽： FPGA 安全系統(tǒng)
上傳時(shí)間： 2013-11-05
上傳用戶：維子哥哥
為實(shí)現(xiàn)基于PCI總線的運(yùn)動(dòng)控制，設(shè)計(jì)了一款以國(guó)產(chǎn)芯片CH365為核心的運(yùn)動(dòng)控制卡，給出設(shè)計(jì)原理圖，開發(fā)基于DOS的開源驅(qū)動(dòng)函數(shù)庫(kù)和基于Windows的驅(qū)動(dòng)程序及動(dòng)態(tài)鏈接庫(kù)，并對(duì)運(yùn)動(dòng)控制卡驅(qū)動(dòng)程序的編寫做了詳細(xì)的介紹，對(duì)中斷服務(wù)程序的工作流程也做了完整的說(shuō)明，通過(guò)這些函數(shù)庫(kù)及驅(qū)動(dòng)程序，可方便地對(duì)伺服電機(jī)進(jìn)行步進(jìn)式及脈沖式控制，實(shí)現(xiàn)各種方向連續(xù)的曲線加工和速度控制。經(jīng)測(cè)試，設(shè)計(jì)的運(yùn)動(dòng)控制卡在實(shí)時(shí)性、可靠性、插補(bǔ)速度和加工精度方面都有較大的優(yōu)勢(shì)，具有較好的應(yīng)用前景。
上傳時(shí)間： 2013-11-09
上傳用戶：yeling1919
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