标准摘要
[中文适用范围]： 本文件规定了 CXPI 数据链路层和 CXPI 物理层。 该 DLL 基于： ——基于优先级的 CXPI 网络访问； ——基于内容的非破坏性仲裁； ——广播帧传输和接受过滤； - 节点相关的错误检测和错误信令。 CXPI 物理层（PHY）要求包括： ——物理信令（PS）子层，规定了时钟生成功能、CXPI 帧的编码和解码以及逐位冲突解决逻辑的要求； ——物理媒体附件（PMA）子层，规定了信号整形波形逻辑的要求； ——物理介质相关（PMD）子层，规定了CXPI网络终端、静电放电保护等要求以及设备连接器要求； ——物理介质 (PM)，它规定了 CXPI 网络电缆/线束的要求。 [外文原描述]： This document specifies the CXPI data link layer and the CXPI physical layer. The DLL is based on: — priority-based CXPI network access; — non-destructive content-based arbitration; — broadcast frame transfer and acceptance filtering; and — node related error detection and error signalling. The CXPI physical layer (PHY) requirements comprise of: — physical signalling (PS) sub-layer, which specifies the requirements of the clock generation function, the encoding and decoding of CXPI frames, and bit-wise collision resolution logic; — physical media attachment (PMA) sub-layer, which specifies the requirements of the signal shaping waveform logic; — physical media dependent (PMD) sub-layer, which specifies the requirements of the CXPI network termination, electrostatic discharge protection, etc., and device connector requirements; and — physical media (PM), which specifies the requirements of the CXPI network cable/wiring harness.
英文名称Road vehicles — Clock extension peripheral interface (CXPI) — Part 4: Data link layer and physical layer