关键词: PCI-Express 通道 交换

Abstract:

This paper describes a higher performance third-generation I/O bus called PCI-Express, which serves as a general-purpose I/O interconnect for a wide variety of future computing platforms. Key PCI attributes are maintained, parallel bus implementation is replaced by a fully-serial interface,A split-tra nsaction protocol is implemented with attributed packets that are prioritized and optimally delivered to their target. The PCI-Express definition will comprehend a variety of form factors to support smooth integration with PCI and to enable new features. At the same time, this paper proposes a new type   of PCI-Express based on the backboard for special applications.

Key words: PCI-Express, lane, switch