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.
上傳時間: 2013-11-24
上傳用戶:18707733937
完成“快速拼寫檢查程序”的分析、設計和實現過程。 快速拼寫檢查程序基本功能說明如下: 1.進行拼寫檢查的文件以文本文件形式存儲于外存上; 2.只檢查文件中英文單詞的拼寫錯誤; 3.單詞是用字母(a…z或A…Z)定義,任一非字母字符作為分隔符; 4.判斷單詞拼寫正誤的依據是詞典,詞典以文本文件形式存放于外存上; 5.詞典文件第1行為詞典的名稱,以后每一行存放一個單詞; 6.輸出結果以文本文件形式存儲,其格式為: 第1行:被拼寫檢查的文件名 + 詞典名 第2行后的每一行: 出錯單詞 位于第x行 7.合理的GUI,注意GUI界面類與功能類的關系應比較松散。
上傳時間: 2014-01-09
上傳用戶: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.
標簽: algorithm character position either
上傳時間: 2014-01-27
上傳用戶:wang0123456789
本程序所求解的方程為x-cosx=0的解,程序將f(x)定義為子函數過程f(x),并把初值賦給相應變量后,即可使用xj(a,b,n)調用快帶弦截法子函數。
上傳時間: 2013-12-28
上傳用戶: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.
標簽: Components accessing Builder Library
上傳時間: 2015-04-05
上傳用戶: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.
標簽: Asynchronous JavaScript JSP simplify
上傳時間: 2014-01-15
上傳用戶:jkhjkh1982
介紹: 讀寫INI文件的四個函數 如何取得計算機名 計算Windows從啟動后所運行的總時間 使窗體右上角的X按鈕失效刪除系統菜單 動態改變及恢復屏幕設置下 制作垂直標題欄的窗體下 用API函數控制光驅的開關 等。
上傳時間: 2015-04-09
上傳用戶: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.
標簽: Description supervised algorithm S-ISOMAP
上傳時間: 2015-04-10
上傳用戶:wfeel
Shell源碼:find查找日期為某一天的文件 A=`find ~ -print` | ls -l --full-time $A 2>/dev/null | grep "Jun 27" | grep 1998 下面這個script,存成一個符合規則名字的文件,置上x屬性就行了。
標簽: find full-time Shell print
上傳時間: 2014-01-01
上傳用戶:維子哥哥
用Doolittle方法求解此方程組; 1.先由U[1][i]=a[1][i] 求的U的第一行,在根據L[i][1]=a[i][1]/U[1][1] 求的L的第一列;2..然后根據公式求得U,L其他的值; 3 回帶求解得到X
上傳時間: 2013-12-10
上傳用戶:洛木卓