ISO-20794-4 › Road vehicles - Clock extension peripheral interface (CXPI) - Part 4: Data link layer and physical layer
The following bibliographic material is provided to assist you with your purchasing decision:
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.
To find similar documents by classification:
43.040.15 (Car informatics. On board computer systems Including navigation systems, car radio, etc.)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ISO 20794-4:2020
Revision Level
1ST EDITION
Status
Current
Publication Date
Feb. 1, 2020
Committee Number
ISO/TC 22/SC 31