scope:

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.