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用户193865 2009-5-11 09:59
DFT Compiler的学习-----part3 Pre-scan的test DRC
关于pre-scan的test DRC问题 1.test DRC的流程 很简单,只要注意到只有在创建test_protocol之后才可能test DRC检查。 2.test DRC后时序单元的分类 分为两类, ...
用户193865 2009-5-11 09:57
DFT Compiler的学习-----part6 Report和Output File
1.preview_dft 功能:在做inser_dft之前查测试点的信息,扫描链的信息。根据这些信息来确定所加的dft 规格是否完备。 一般是在规则写完并进行dft_drc之后,用 ...
用户193865 2009-5-11 09:57
DFT Compiler的学习-----part2 scan replacement
今天着重分析下扫描单元替换(scan replacement)的内容。所谓scan replacement,顾名思意就是在设计中用扫描单元替代非扫描单元。如果设计是以RTL形式给出的, ...
用户193865 2009-5-8 18:04
PERL unicode
本文内容适用于perl 5.8及其以上版本. perl internal form 在Perl看来, 字符串只有两种形式. 一种是octets, 即8位序列, 也就是我们通常说的字节数组. 另一 ...
用户193865 2009-4-26 14:49
verification question
(*) Whats the difference between structural and functional vectors. http://www.eetasia.com/ARTICLES/2004DEC/B/2004DEC01_ICT_ST_TA.pdf ...
用户193865 2009-4-25 16:22
ASIC Test Methodology Simulation Engineer
Company: Qualcomm Position: ASIC Test Methodology/Simulation Engineer Questions 1. What will happen when there is hold time violation in one o ...
用户193865 2009-4-25 15:27
PCB布线设计经验谈-模拟和数字布线的异同
  工程领域中的 数字 设计人员和数字电路板设计专家在不断增加,这反映了行业的发展趋势。尽管对数字设计的重视带来了电子产品的重大发展,但仍然存在,而且 ...
用户193865 2009-4-25 14:50
SYNOPSYS Design Compiler Usage Guidelines
SYNOPSYS Design Compile r Usage Guidelines   1.   Design Objects(term definition) -           ...
用户193865 2009-3-31 22:36
interview scenario
bgs : whats diff bet set_max_capacitance and set_load? i dont know ans me: set_max_capacitance applies on pin not on pin and net but set_l ...
用户193865 2009-3-31 22:09
VLSI Interview question 2
Below interview questions are contributed by ASIC_diehard (Thanks a lot !). Below questions are asked for senior position in Physical Design domain. ...
用户193865 2009-3-31 22:06
VLSI Interview question
What are the various design changes you do to meet design power targets? Ans: Design with Multi-VDD designs, Areas which requires high perfo ...
用户193865 2009-3-31 22:00
VLSI Frequently asked interview
VLSI Frequently asked interview Questions with answers To recieve answers freely , just register the mailing list at the right what is the dif ...
用户193865 2009-3-29 22:51
ASIC Design Flow
ASIC Design Flow Step 1: Prepare an Requirement Specification Step 2: Create an Micro-Architecture Documen ...
用户193865 2009-3-29 19:22
一个不错的综合脚本小程序
foreach_in_collection clk { set clk_net ] set clk_pin set flag false if { 0} { echo PIN set_ideal_network ...
用户193865 2009-3-29 19:20
DC 概论六之multicycle_path
在讲多周期路径之前,先看下单频率路径的建立关系和保持关系 『Design Compiler calculates the default setup and hold relations and derives single-cycle ...
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