QMC协议驱动在MPC860T上的设计与实现

串行通信控制器SCCs是MPC860T最强大的通信处理模块。通过配置QMC协议，使标准情况下只支持一条逻辑通道的SCC可以支持多达64条逻辑通道，进而支持具有广泛应用的E1／T1多时隙链路。本文阐述了MPC860T的SCC接口工作原理和QMC协议，重点研究了在SCC上实现QMC协议的基本设计方法及具体实现过程，并给出了主要功能函数的设计流程。     

软交换信令网关中2M高速链路的实现

本文介绍了信令网关中2M高速链路的实现,其硬件平台基于MPC860QMC。讨论了MPC860QMC的配置方案及软件实现,最后给出了2M链路的测试结果。     

软交换信令网关中2M高速链路的实现

本介绍了信令网关中2M高速链路的实现，其硬件平台基于MPC860QMC。讨论了MPC860QMC的配置方案及软件实现，最后给出了2M链路的测试结果。     

利用MPC860实现同种局域网远程互联

文章主要介绍并提供了利用Motorola公司的通信控制器MPC860通过E1/ISDNPRA接口实现同种局域网远程互联的一种设计方案。涉及了对通信控制器MPC860的应用、以太网技术、HDLC协议以及网桥技术等。     

采用MPC860实现的数字通信基带模块

MPC860是一种有着极强通信处理能力和接口功能的主流嵌入式处理器芯片。采用MPC860作为MCU进行信令分析和语音解码并承担一部分DSP功能如解交织和信道解码可以简化系统结构,加强系统处理能力和速度,保证更好的可靠性、实时性和可扩展性     

MPC860T处理器在卫星通信数据业务处理中的应用

提出了一种新的基于MPC860T的卫星通信数据业务处理模块。介绍了MPC860T的内部结构和基本特性,描述了卫星通信数据业务处理模块的主要功能及其基于AT命令的工作流程,给出了MPC860T硬件平台的接口电路、存储器电路、复位和时钟电路的设计方案,分析了基于实时操作系统VxW orks软件平台的C/C 程序的实现、调试和下载过程。显示了MPC860T在通信处理方面的优越性。     

MPC860在七号信令通信网中的应用

介绍了摩托罗拉嵌入式处理器MPC860的内部结构、主要功能和性能特性。主要分析了MPC860在通信方面的优越性和先进性,包括通信处理模块、中断处理机制、七号信令的特殊使用等。描述了MPC860在七号信令通信网中的具体应用方案。对我国通信现状和七号信令的通信原理和层次结构进行了介绍。     

基于MPC860的嵌入式测控系统的硬件设计

本文设计的嵌入式测控系统包含模拟和数字通道，所有输入输出通道都进行了信号隔离；控制核心采用32位嵌入式通信处理器MPC860系列芯片。本文着重介绍了基于MPC860的I／O扩展和测控电路的硬件设计。     

嵌入式处理器在ROADM中的应用

摩托罗拉公司生产的32位嵌入式通信处理器MPC860,在通信领域有着广泛的应用。讨论了MPC860在光网络关键节点设备ROADM中的具体应用。     

基于MPC860与ST16C654的串行通信设计

针对嵌入式服务器、局域网需要与串行口通信的要求,提出基于MPC860与ST16C654的设计方法.采用MPC860与ST16C654作为主要器件进行电路连接,采用嵌入式实时多任务操作系统VxWorks开发程序,实现串口数据包的异步收发.进行单通道每秒20次连续收或发5字节实验,无丢失包.该设计已成功应用于网络设备开发中.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Nanoimprint Lithography -A Next Generation High Volume Lithography Technique

IntroductionNanoimprint Lithography is a well-acknowl-edged low cost, high resolution, large area pattern-ing process. It includes the most promising methods,high-pressure hot embossing lithography (HEL) [2],UV-cured imprinting (UV-NIL) [3] and micro contactprinting (m-CP, MCP) [4]. Curing of the imprintedstructures is either done by subsequent UV-lightexposure in the case of UV-NIL or by cooling downbelow the glass transition temperature of the ther-moplastic material in case of HEL…     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

Influence of PVK ： NPB hole transporting layer on the characteristics of organic light-emitting devices

A doping system consisting of NPB and PVK is employed as a composite hole transporting layer （CHTL）. By adjusting the component ratio of the doping system, a series of devices with different concentration proportion of PVK ： NPB are constracted. The result shows that doping concentration of NPB enhances the competence of hole transporting ability, and modifies the recombination region of charge as well as affects the surface morphology of doped film. Optimum device with a maximum brightness of 7852 cd/m^2 and a power efficiency of 1.75 lm/W has been obtained by choosing a concentration proportion of PVK ： NPB at 1：3.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.     

Analysis of error performance on Turbo coded FDPIM

Due to variable symbol length of digital pulse interval modulation（DPIM）, it is difficult to analyze the error performances of Turbo coded DPIM. To solve this problem, a fixed-length digital pulse interval modulation（FDPIM） method is provided. The FDPIM modulation structure is introduced. The packet error rates of uncoded FDPIM are analyzed and compared with that of DPIM. Bit error rates of Turbo coded FDPIM are simulated based on three kinds of analytical models under weak turbulence channel. The results show that packet error rate of uncoded FDPIM is inferior to that of uncoded DPIM. However, FDPIM is easy to be implemented and easy to be combined, with Turbo code for soft-decision because of its fixed length. Besides, the introduction of Turbo code in this modulation can decrease the average power about 10 dBm, which means that it can improve the error performance of the system effectively.     

A method for calculating the center position of collimated light

It is a key problem to accurately calculate beam spots＇ center of measuring the warp by using a collimated laser. A new method, named double geometrical center method （DGCM）, is put forward for the first time. In this method, a plane wave perpendicularly irradiates an aperture stop, and a charge couple device （CCD） is employed to receive the diffraction-beam spots, then the geometrical centers of the fast and the second diffraction-beam spots are calculated respectively, and their mean value is regarded as the center of datum beam. In face of such adverse instances as laser intension distributing defectively, part of the image being saturated, this method can still work well. What＇s more, this method can detect whether an unacceptable error exits in the courses of image receiving, processing and calculating. The experimental results indicate the precision of this method is high.     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.