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Security/Hacking Хакеры
Security/Hacking PDF Hacks: 100 Industrial-Strength Tips & Tools (Repost)
Security/Hacking International Relations and Security in the Digital Age: International Relations and Security in the Digital Age
Security/Hacking Information Security Cost Management
Security/Hacking Seven Deadliest Unified Communications Attacks (Repost)
Security/Hacking CompTIA Security Certification Study Guide, Third Edition
Security/Hacking New American Expat: Thriving and Surviving Overseas in the Post-9/11 World {Repost}
Security/Hacking Managing an Information Security and Privacy Awareness and Training Program
Security/Hacking Mechatronics for Safety, Security and Dependability in a New Era {Repost}
Security/Hacking How to Survive the End of the World as We Know It: Tactics, Techniques, and Technologies for Uncertain Times
Security/Hacking Spyware and Adware (Advances in Information Security)
Security/Hacking Network and System Security
Security/Hacking Amazon Hacks: 100 Industrial-Strength Tips & Tools (Repost)
Security/Hacking Introduction to Network Security (Repost)
Security/Hacking Security Study Guide {Repost}
Security/Hacking Aggressive Network Self Defense (2005) & Agile Web Development With Rails 1st Edition (2005) (Repost)
Security/Hacking The Hacker's Underground Handbook Learn What it Takes to Crack Even the Most Secure Systems
Security/Hacking Developer's Guide to Web Application Security By Michael Cross
Security/Hacking Hack Proofing ColdFusion By Steve Casco, Rob Rusher
Security/Hacking Wireshark & Ethereal Network Protocol Analyzer Toolkit (Repost)
Security/Hacking PDF Hacks: 100 Industrial-Strength Tips & Tools (Repost)
Security/Hacking International Relations and Security in the Digital Age: International Relations and Security in the Digital Age
Security/Hacking Information Security Cost Management
Security/Hacking Seven Deadliest Unified Communications Attacks (Repost)
Security/Hacking CompTIA Security Certification Study Guide, Third Edition
Security/Hacking New American Expat: Thriving and Surviving Overseas in the Post-9/11 World {Repost}
Security/Hacking Managing an Information Security and Privacy Awareness and Training Program
Security/Hacking Mechatronics for Safety, Security and Dependability in a New Era {Repost}
Security/Hacking How to Survive the End of the World as We Know It: Tactics, Techniques, and Technologies for Uncertain Times
Security/Hacking Spyware and Adware (Advances in Information Security)
Security/Hacking Network and System Security
Security/Hacking Amazon Hacks: 100 Industrial-Strength Tips & Tools (Repost)
Security/Hacking Introduction to Network Security (Repost)
Security/Hacking Security Study Guide {Repost}
Security/Hacking Aggressive Network Self Defense (2005) & Agile Web Development With Rails 1st Edition (2005) (Repost)
Security/Hacking The Hacker's Underground Handbook Learn What it Takes to Crack Even the Most Secure Systems
Security/Hacking Developer's Guide to Web Application Security By Michael Cross
Security/Hacking Hack Proofing ColdFusion By Steve Casco, Rob Rusher
Security/Hacking Wireshark & Ethereal Network Protocol Analyzer Toolkit (Repost)
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Security/Hacking 硬件工程师面试试题集
Posted on 2010-06-01
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1、下面是一些基本的数字电路知识问题,请简要回答之。(1) 什么是Setup 和Hold 时间?答:Setup/Hold Time 用于测试芯片对输入信号和时钟信号之间的时间要求。建立时间(Setup Time)是指触发器的时钟信号上升沿到来以前,数据能够保持稳定不变的时间。输入数据信号应提前时钟上升沿(如上升沿有效)T 时间到达芯片,这个T 就是建立时间通常所说的Setup Time。如不满足Setup Time,这个数据就不能被这一时钟打入触发器,只有在下一个时钟上升沿到来时,数据才能被打入触发器。保持时间(Hold Time)是指触发器的时钟信号上升沿到来以后,数据保持稳定不变的时间。如果Hold Time 不够,数据同样不能被打入触发器。
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