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BSI
BS ISO 20794-4:2020

BS ISO 20794-4:2020

Current

Current

The latest, up-to-date edition.

Road vehicles. Clock extension peripheral interface (CXPI) Data link layer and physical layer

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

13-02-2020

Publisher

British Standards Institution

This document specifies the CXPI data link layer and the CXPI physical layer.

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.

Committee
AUE/16
DocumentType
Standard
ISBN
9780580972263
Pages
70
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 20794-4:2020 Identical

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Hardcopy - English
PDF - English
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