Applying power to a standard logic chip, SRAM, or EPROM, usually results in output pinstracking the applied voltage as it rises. Programmable logic attempts to emulate that behavior,but physics forbids perfect emulation, due to the device programmability. It requires care tospecify the pin behavior, because Programmable parts encounter unknown variables – yourdesign and your power environment.
標(biāo)簽： Xilinx XAPP CPLD 440
上傳時(shí)間： 2013-11-24
上傳用戶：253189838
The Virtex-4 features, such as the Programmable IDELAY and built-in FIFO support, simplifythe bridging of a high-speed, PCI-X core to large amounts of DDR-SDRAM memory. Onechallenge is meeting the PCI-X target initial latency specification. PCI-X Protocol Addendum tothe PCI Local Bus Specification Revision 2.0a ([Ref 6]) dictates that when a target signals adata transfer, "the target must do so within 16 clocks of the assertion of FRAME#." PCItermination transactions, such as Split Response/Complete, are commonly used to meet thelatency specifications. This method adds complexity to the design, as well as additional systemlatency. Another solution is to increase the ratio of the memory frequency to the PCI-X busfrequency. However, this solution increases the required power and clock resource usage.
上傳時(shí)間： 2013-11-24
上傳用戶：18707733937
Xilinx Next Generation 28 nm FPGA Technology Overview Xilinx has chosen 28 nm high-κ metal gate (HKMG) highperformance,low-power process technology and combined it with a new unified ASMBL™ architecture to create a new generation of FPGAs that offer lower power and higher performance. These devices enable unprecedented levels of integration and bandwidth and provide system architects and designers a fully Programmable alternative to ASSPs and ASICs.
上傳時(shí)間： 2013-12-07
上傳用戶：bruce
WP369可擴(kuò)展式處理平臺(tái)-各種嵌入式系統(tǒng)的理想解決方案 ：Delivering unrivaled levels of system performance,flexibility, scalability, and integration to developers,Xilinx's architecture for a new Extensible Processing Platform is optimized for system power, cost, and size. Based on ARM's dual-core Cortex™-A9 MPCore processors and Xilinx’s 28 nm Programmable logic,the Extensible Processing Platform takes a processor-centric approach by defining a comprehensive processor system implemented with standard design methods. This approach provides Software Developers a familiar programming environment within an optimized, full featured,powerful, yet low-cost, low-power processing platform.
標(biāo)簽： 369 WP 擴(kuò)展式 處理平臺(tái)
上傳時(shí)間： 2013-10-18
上傳用戶：cursor
The Xilinx Zynq-7000 Extensible Processing Platform (EPP) redefines the possibilities for embedded systems, giving system and software architects and developers a flexible platform to launch their new solutions and traditional ASIC and ASSP users an alternative that aligns with today’s Programmable imperative. The new class of product elegantly combines an industrystandard ARMprocessor-based system with Xilinx 28nm Programmable logic—in a single device. The processor boots first, prior to configuration of the Programmable logic. This, along with a streamlined workflow, saves time and effort and lets software developers and hardware designers start development simultaneously.
標(biāo)簽： xilinx Zynq 7000 EPP
上傳時(shí)間： 2013-10-09
上傳用戶：evil
Field Programmable Gate Arrays (FPGAs) are becoming a critical part of every system design. Many vendors offer many different architectures and processes. Which one is right for your design? How do you design one of these so that it works correctly and functions as you expect in your entire system? These are the questions that this paper sets out to answer.
上傳時(shí)間： 2013-10-22
上傳用戶：lmq0059
教學(xué)提示：可編程序控制器(Programmable Logic Controller,簡(jiǎn)稱PLC)是以微處理器為核心，綜合計(jì)算機(jī)技術(shù)、自動(dòng)控制技術(shù)和通信技術(shù)發(fā)展起來(lái)的一種新型工業(yè)自動(dòng)控制裝置。隨著大規(guī)模、超大規(guī)模集成電路技術(shù)和數(shù)字通信技術(shù)的進(jìn)步和發(fā)展，PLC技術(shù)不斷提高，在工業(yè)生產(chǎn)中獲得極其廣泛的應(yīng)用。教學(xué)要求：本章讓學(xué)生了解PLC及其控制系統(tǒng)的基本知識(shí)，重點(diǎn)了解PLC的技術(shù)特點(diǎn)、類型以及發(fā)展概況。第一章 可編程序控制器概論1.1 PLC的定義及特點(diǎn)1.1.1 PLC的產(chǎn)生及定義1.1.2 PLC的特點(diǎn)1.1.3 PLC的分類1.2 PLC的發(fā)展趨勢(shì)
標(biāo)簽： 可編程序控制器
上傳時(shí)間： 2013-10-28
上傳用戶：bnfm
a8259 可編程中斷控制 altera提供 The a8259 is designed to simplify the implementation of the interrupt interface in 8088 and 8086 based microcomputer systems. The device is known as a Programmable interrupt controller. The a8259 receives and prioritizes up to 8 interrupts, and in the cascade mode, this can be expanded up to 64 interrupts. An asynchronous reset and a clock input have been added to improve operation and reliability.
上傳時(shí)間： 2015-01-02
上傳用戶：panpanpan
xilinx設(shè)計(jì)可以快速適應(yīng)各種發(fā)展標(biāo)準(zhǔn)和處理要求，從而可以改進(jìn)分析能力來(lái)滿足市場(chǎng)需求，同時(shí)可以在最初部署后的很長(zhǎng)一段時(shí)間內(nèi)添加各種特性和功能。 Xilinx All Programmable FPGA 和基于 SoC 的解決方案和平臺(tái)可充分滿足當(dāng)今磁場(chǎng)定向控制 （FOC） 等復(fù)雜控制算法所提出的苛刻的時(shí)序和性能要求。 Xilinx 工業(yè)成像解決方案實(shí)現(xiàn)了快速原型開發(fā)，簡(jiǎn)化了開發(fā)工作，極大地縮短了高分辨率視頻會(huì)議、視頻監(jiān)控和機(jī)器視覺(jué)系統(tǒng)的面市時(shí)間。
標(biāo)簽： xilinx 賽靈思 工業(yè)自動(dòng)化 方案
上傳時(shí)間： 2013-11-17
上傳用戶：jhs541019
Abstract: As industrial control systems (ICSs) have become increasingly connected and use more off-the-shelfcomponents, new vulnerabilities to cyber attacks have emerged. This tutorial looks at three types of ICSs:Programmable logic controllers (PLCs), supervisory control and data acquisition (SCADA) systems, anddistributed control systems (DCSs), and then discusses security issues and remedies. This document alsoexplains the benefits and limitations of two cryptographic solutions (digital signatures and encryption) andelaborates on the reasons for using security ICs in an ICS to support cryptography.
標(biāo)簽： 工業(yè)系統(tǒng) 安全問(wèn)題
上傳時(shí)間： 2013-10-09
上傳用戶：woshinimiaoye
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