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.
上传时间: 2013-11-24
上传用户:18707733937
完成“快速拼写检查程序”的分析、设计和实现过程。 快速拼写检查程序基本功能说明如下: 1.进行拼写检查的文件以文本文件形式存储于外存上; 2.只检查文件中英文单词的拼写错误; 3.单词是用字母(a…z或A…Z)定义,任一非字母字符作为分隔符; 4.判断单词拼写正误的依据是词典,词典以文本文件形式存放于外存上; 5.词典文件第1行为词典的名称,以后每一行存放一个单词; 6.输出结果以文本文件形式存储,其格式为: 第1行:被拼写检查的文件名 + 词典名 第2行后的每一行: 出错单词 位于第x行 7.合理的GUI,注意GUI界面类与功能类的关系应比较松散。
上传时间: 2014-01-09
上传用户:ggwz258
In each step the LZSS algorithm sends either a character or a <position, length> pair. Among these, perhaps character "e" appears more frequently than "x", and a <position, length> pair of length 3 might be commoner than one of length 18, say. Thus, if we encode the more frequent in fewer bits and the less frequent in more bits, the total length of the encoded text will be diminished. This consideration suggests that we use Huffman or arithmetic coding, preferably of adaptive kind, along with LZSS.
标签: algorithm character position either
上传时间: 2014-01-27
上传用户:wang0123456789
本程序所求解的方程为x-cosx=0的解,程序将f(x)定义为子函数过程f(x),并把初值赋给相应变量后,即可使用xj(a,b,n)调用快带弦截法子函数。
上传时间: 2013-12-28
上传用户:星仔
DNotes For Delphi/C++Builder is a suite of VCL Components and a Class Library for accessing Lotus Notes 4.x databases & servers.
标签: Components accessing Builder Library
上传时间: 2015-04-05
上传用户:2525775
The AJAX JSP Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML (AJAX) technology in JavaServer Pages.
标签: Asynchronous JavaScript JSP simplify
上传时间: 2014-01-15
上传用户:jkhjkh1982
介绍: 读写INI文件的四个函数 如何取得计算机名 计算Windows从启动后所运行的总时间 使窗体右上角的X按钮失效删除系统菜单 动态改变及恢复屏幕设置下 制作垂直标题栏的窗体下 用API函数控制光驱的开关 等。
上传时间: 2015-04-09
上传用户:qwe1234
Description: S-ISOMAP is a manifold learning algorithm, which is a supervised variant of ISOMAP. Reference: X. Geng, D.-C. Zhan, and Z.-H. Zhou. Supervised nonlinear dimensionality reduction for visualization and classification. IEEE Transactions on Systems, Man, and Cybernetics - Part B: Cybernetics, 2005, vol.35, no.6, pp.1098-1107.
标签: Description supervised algorithm S-ISOMAP
上传时间: 2015-04-10
上传用户:wfeel
Shell源码:find查找日期为某一天的文件 A=`find ~ -print` | ls -l --full-time $A 2>/dev/null | grep "Jun 27" | grep 1998 下面这个script,存成一个符合规则名字的文件,置上x属性就行了。
标签: find full-time Shell print
上传时间: 2014-01-01
上传用户:维子哥哥
用Doolittle方法求解此方程组; 1.先由U[1][i]=a[1][i] 求的U的第一行,在根据L[i][1]=a[i][1]/U[1][1] 求的L的第一列;2..然后根据公式求得U,L其他的值; 3 回带求解得到X
上传时间: 2013-12-10
上传用户:洛木卓