TCS ECN Background & Key TermsTrust Issues with PCIe PlatformsTCS ECN DetailsTrusted Config Space and TCS TransactionsTrusted Config Access Mech (TCAM)Standard vs Trusted Config AccessNew Capability StructuresTCS Support in Root Ports, Switches, & BridgesTCS “Does not…” ListExample Trusted Computing PlatformRevisiting the Trust IssuesKey Takeaways/Call to ActionQuestions
標(biāo)簽： Configuration Trusted PCIe Spa
上傳時(shí)間： 2013-11-21
上傳用戶：hsfei8
The LTC®3414 offers a compact and efficient voltage regulatorsolution for point of load conversion in electronicsystems that require low output voltages (down to 0.8V)from a 2.5V to 5V power bus. Internal power MOSFETswitches, with only 67mW on-resistance, allow theLTC3414 to deliver up to 4A of output current with efficiencyas high as 94%. The LTC3414 saves space by operatingwith switching frequencies as high as 4MHz, enabling theuse of tiny inductors and capacitors.
標(biāo)簽： 同步穩(wěn)壓器 元件 驅(qū)動(dòng) 負(fù)載
上傳時(shí)間： 2014-01-03
上傳用戶：dongbaobao
When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.
標(biāo)簽： Wide-input modules offer dc
上傳時(shí)間： 2014-12-24
上傳用戶：dragonhaixm
廣州致遠(yuǎn)電子有限公司近期推出了系列的工業(yè)級(jí)微功率DC-DC電源模塊，能夠廣泛應(yīng)用于低頻模擬電路，大功率IGBT驅(qū)動(dòng),純數(shù)字電路,模擬前端隔離電路,RS232/RS485/D422隔離通訊接口，CAN-BUS隔離通訊接口，運(yùn)算放大器電源和手持便攜儀表等多種場(chǎng)合。其全面性與成熟可靠的設(shè)計(jì)，可以解決用戶在電源和模擬前端部分設(shè)計(jì)中所遇到的較多難題，并可以節(jié)省開(kāi)發(fā)時(shí)間，使用戶的產(chǎn)品更快推出市場(chǎng).
標(biāo)簽： DC-DC 工業(yè)級(jí) 微功率 電源模塊
上傳時(shí)間： 2013-10-17
上傳用戶：妄想演繹師
Demonstration circuit 1562A is an engineering toolto design and evaluate the LTC699X-X family ofTimerBlox circuits. The center section of the boardcontains a pre-configured TimerBlox function.DC1562A comes in twelve timing function variationsas outlined in Table 1.Surrounding the center board is a ”playground”prototyping area. The prototyping area has padsfor Dip-8, S8, MS8, or S6 packages with breadboarding connections to each pin and two convenientpower buses and ground bus surrounding theentire area. This area is for conditioning signals tocontrol the timer function and for adding loads controlled in time.
標(biāo)簽： 6994 LTC PCB 參考設(shè)計(jì)
上傳時(shí)間： 2013-10-18
上傳用戶：如果你也聽(tīng)說(shuō)
I2C-BUS 接口實(shí)時(shí)時(shí)鐘I2C-BUS 接口實(shí)時(shí)時(shí)鐘I2C-BUS 接口實(shí)時(shí)時(shí)鐘I2C-BUS 接口實(shí)時(shí)時(shí)鐘I2C-BUS 接口實(shí)時(shí)時(shí)鐘
上傳時(shí)間： 2013-10-19
上傳用戶：mhp0114
目錄： 1. Character Type Functions － 字符類(lèi)型函數(shù) 2. Standard C Input/Output Functions － 標(biāo)準(zhǔn)輸入輸出函數(shù) 3. Standard Library Functions － 標(biāo)準(zhǔn)庫(kù)和內(nèi)存分配函數(shù) 4. Mathematical Functions － 數(shù)學(xué)函數(shù) 5. String Functions － 字符串函數(shù) 6. BCD Conversion Functions － BCD 轉(zhuǎn)換函數(shù) 7. Memory Access Functions － 存儲(chǔ)器訪問(wèn)函數(shù) 8. Delay Functions － 延時(shí)函數(shù) 9. LCD Functions － LCD函數(shù) 10. LCD Functions for displays with 4x40 characters － 4×40 字符型LCD函數(shù) 11. LCD Functions for displays connected in 8 bit memory mapped mode －以8 位外部存儲(chǔ) 器模式接口的LCD顯示函數(shù) 12. I2C Bus Functions － I2C 總線函數(shù) 13. National Semiconductor LM75 Temperature Sensor Functions － LM75 溫度傳感器函數(shù) 14. Dallas Semiconductor DS1621 Thermometer/Thermostat Functions － DS1621 溫度計(jì)函 數(shù) 15. Philips PCF8563 Real Time Clock Functions － PCF8563 實(shí)時(shí)時(shí)鐘函數(shù) 16. Philips PCF8583 Real Time Clock Functions － PCF8583 實(shí)時(shí)時(shí)鐘函數(shù) 17. Dallas Semiconductor DS1302 Real Time Clock Functions － DS1302 實(shí)時(shí)時(shí)鐘函數(shù) 18. Dallas Semiconductor DS1307 Real Time Clock Functions － DS1307 實(shí)時(shí)時(shí)鐘函數(shù) 19. 1 Wire Protocol Functions － 單線通訊協(xié)議函數(shù) 20. Dallas Semiconductor DS1820/DS1822 Temperature Sensors Functions － DS1820/1822 溫度傳感器函數(shù) 21. SPI Functions － SPI 函數(shù) 22. Power Management Functions － 電源管理函數(shù) 23. Gray Code Conversion Functions － 格雷碼轉(zhuǎn)換函數(shù)
標(biāo)簽： AVR 庫(kù)函數(shù)
上傳時(shí)間： 2013-10-22
上傳用戶：歸海惜雪
在航電系統(tǒng)維護(hù)過(guò)程中，為解決定位故障的效率和降低維修成本等問(wèn)題，提出了基于ICD（Interface Control Document，接口控制文件）的1553B總線的信息監(jiān)控系統(tǒng)模型。該系統(tǒng)運(yùn)用數(shù)據(jù)采集卡對(duì)總線中傳輸?shù)男盘?hào)有無(wú)失真、偏差等電氣特性進(jìn)行檢測(cè)，并使用1553B通訊卡通過(guò)測(cè)控軟件LabWindows/CVI編程與ICD數(shù)據(jù)庫(kù)的動(dòng)態(tài)鏈接，實(shí)現(xiàn)總線信息的解析和故障的判斷。與傳統(tǒng)的維護(hù)過(guò)程相比，這種模型能夠從信號(hào)的電氣特性以及信息的解析等全方位的去檢測(cè)判斷故障的來(lái)源，并且能夠廣泛在其他1553B總線系統(tǒng)內(nèi)擴(kuò)展應(yīng)用。驗(yàn)證表明該監(jiān)控系統(tǒng)可以對(duì)總線信息進(jìn)行快速有效地監(jiān)測(cè)分析，能滿足應(yīng)用需求。 Abstract: In the process of avionics system maintenance， to solve the problems such as improving the efficiency of fast orientation to troubles and reducing maintenance cost， system of 1553B bus information monitor model based on ICD was proposed. The system observed whether the data which transmitted on the bus appear distortion and deviation by using data acquisition card. And using 1553B communication card programming of the measure software LabWindows/CVI and the dynamic linking of ICD database， message analysis and fault estimation could be realized. Compared with traditional maintenance， this model can all-dimensionally detect and analyze the source of faults from both electrical characteristics of the signal and message analysis， and it can be widely applied in the other 1553B system. Experiment shown that this monitor system can effectively detect and analyze the bus message and can meet the application requirements.
標(biāo)簽： 1553B 總線 信息監(jiān)控
上傳時(shí)間： 2013-11-23
上傳用戶：18752787361
AVR32801: UC3A3 Schematic Checklist Features • Power circuit • Reset circuit • USB connection • External bus interface • ABDAC sound DAC interface • JTAG and Nexus debug ports • Clocks and crystal oscillators • MMC, SD-card, SDHC, SDIO and CE-ATA interface 1 Introduction A good hardware design comes from a proper schematic. Since UC3A3 devices have a fair number of pins and functions, the schematic for these devices can be large and quite complex. This application note describes a common checklist which should be used when starting and reviewing the schematics for a UC3A3 design.
標(biāo)簽： Schematic 32801 UC3A3 Chec
上傳時(shí)間： 2014-12-26
上傳用戶：DXM35
以太網(wǎng)和CAN總線應(yīng)用廣泛，但由于其通信協(xié)議不同，兩種總線器件間無(wú)法進(jìn)行數(shù)據(jù)通信，因此，設(shè)計(jì)了基于CP2200與C8051F040的以太網(wǎng)總線與CAN總線接口轉(zhuǎn)換電路，并給出部分相關(guān)硬件電路與軟件設(shè)計(jì)分析。在保證數(shù)據(jù)完整和協(xié)議可靠的前提下，通過(guò)握手協(xié)議和簡(jiǎn)化的以太網(wǎng)協(xié)議，不僅實(shí)現(xiàn)了以太網(wǎng)數(shù)據(jù)與CAN數(shù)據(jù)的轉(zhuǎn)發(fā)，同時(shí)還順利的解決了以太網(wǎng)的高速性與CAN的低速率沖突，以及兩者數(shù)據(jù)包之間的大小不同的矛盾。 Abstract: In the development of actual application， Ethernet and CAN bus are used very extensively. Owing to its various communication protocols， the communicating between two kinds of bus device can’t be carried out. Therefore， in order to solve this problem， the Ethernet-CAN bus interface circuit based on CP2200 and C8051F040 was designed in this paper， and part of the related hardware circuit and software design analysis were given. On the condition of data’s integrity and protocols’reliability， through the handshaking protocols and the simplified the Ethernet protocol， not only the data switching between CAN and Ethernet was realized， but also the differ in velocity and packet size was solved.
標(biāo)簽： C8051F040 CAN 以太網(wǎng) 轉(zhuǎn)換
上傳時(shí)間： 2013-10-15
上傳用戶：Ants
蟲(chóng)蟲(chóng)下載站版權(quán)所有 京ICP備2021023401號(hào)-1
