지난 20년간 컴퓨터 입출력 인터페이스로 사용된 ISA, PCI, AGP, IDE 같은 병렬버스 인터페이스는 PCI Express, SATA 같은 고속 직렬버스의 점대점(point-to-point) 인터페이스로 변하고 있다. I/O 인터페이스가 변하면서 시스템의 클록 구조 역시 변하게 되었다. 공통 모드(Common mode) 클록 구조를 사용한 PCI 인터페이스에서 소스 동기(Source Synchronous) 클록 구조를 사용한 AGP로 바뀌었다. PCI Express 시스템은 고속 직병렬화기인 SerDes의 송수신 PLL의 기준 클록 구조에 따라 몇 가지 방식이 존재한다. 본 고는 PCI Express 시스템에서 사용되는 기준 클록의 전기적 특성과 클록 구조를 살펴본다. 그리고 PCI Express 시스템에서 기준 클록을 측정하고 분석하는 과정을 다루고자 한다.
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 2: : Type 1 + Commercial Use Prohibition)
Copyright Policy
ETRI KSP Copyright Policy
The materials provided on this website are subject to copyrights owned by ETRI and protected by the Copyright Act. Any reproduction, modification, or distribution, in whole or in part, requires the prior explicit approval of ETRI. However, under Article 24.2 of the Copyright Act, the materials may be freely used provided the user complies with the following terms:
The materials to be used must have attached a Korea Open Government License (KOGL) Type 4 symbol, which is similar to CC-BY-NC-ND (Creative Commons Attribution Non-Commercial No Derivatives License). Users are free to use the materials only for non-commercial purposes, provided that original works are properly cited and that no alterations, modifications, or changes to such works is made. This website may contain materials for which ETRI does not hold full copyright or for which ETRI shares copyright in conjunction with other third parties. Without explicit permission, any use of such materials without KOGL indication is strictly prohibited and will constitute an infringement of the copyright of ETRI or of the relevant copyright holders.
J. Kim et. al, "Trends in Lightweight Kernel for Many core Based High-Performance Computing", Electronics and Telecommunications Trends. Vol. 32, No. 4, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
J. Sim et.al, “the Fourth Industrial Revolution and ICT – IDX Strategy for leading the Fourth Industrial Revolution”, ETRI Insight, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
If you have any questions or concerns about these terms of use, or if you would like to request permission to use any material on this website, please feel free to contact us
KOGL Type 4:(Source Indication + Commercial Use Prohibition+Change Prohibition)
Contact ETRI, Research Information Service Section
Privacy Policy
ETRI KSP Privacy Policy
ETRI does not collect personal information from external users who access our Knowledge Sharing Platform (KSP). Unathorized automated collection of researcher information from our platform without ETRI's consent is strictly prohibited.
[Researcher Information Disclosure] ETRI publicly shares specific researcher information related to research outcomes, including the researcher's name, department, work email, and work phone number.
※ ETRI does not share employee photographs with external users without the explicit consent of the researcher. If a researcher provides consent, their photograph may be displayed on the KSP.