PCI Express는 고속 차동신호를 사용한 점대점(point-to-point) 프로토콜로 신호무결성(signal-integrity) 측정을 위해 기존의 병렬버스신호와 다른 파라미터(parameter)들이 사용되고 있다. PCI Express 시스템에서 중요한 전기 파라미터는 loss와 jitter이며 eye diagram을 통해서 분석이 가능하다. 본 고는 PCI Express 송수신 버퍼의 전기 규격과 애드인카드(add-in card) 시스템의 전기적 여유(budgets)의 의미와 분석을 다룬다. 또한 실제적인 PCI Express 시스템에서 전기 파라미터들을 측정하고 분석, 디버깅의 방법을 다룬다.
KSP Keywords
PCI-Express(PCIe), Point-to-Point
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