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Application Specific Microcontroller for Multiplex Wiring
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English
Abstract
The new aerial communication protocol “Controller Area Network” (CAN) efficiently supports distributed realtime control in automotive applications. In order to unload CPUs from high-speed message transfer, dedicated CAN hardware handles messages up to the communication object level.
In multiplex wiring message rates are one to two orders of magnitude lower, allowing to implement the upper communication level more cost-effectively in software. This reduces CAN interface hardware to bitwise protocol handling only. It may be incorporated even into low-end microcontrollers without significantly increasing chip size. Thus the same CAN protocol supports the entire range of serial automotive communication, matching implementation costs to requirements at each performance level.
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Authors
Citation
Kiencke, U. and Dais, S., "Application Specific Microcontroller for Multiplex Wiring," SAE Technical Paper 870515, 1987, https://doi.org/10.4271/870515.Also In
References
- Kiencke Uwe Dais Siegfried Litscehel Martin “Automotive Serial Controller Area Network” SAE Paper 860391
- Kiencke Uwe “Serial Communication Network among Distributed Microcontrollers” WESCON 1986, Session 30, Serial Protocols for Distributed Control, Paper 30/2
- SAE Multiplex Wiring Subcommittee “Chart of Vehicle Multiplexing Characteristics” SAE Recommended Practice J 1850
- MC 68000 “Motorola's advanced Computer System on Silicon” Motorola Semiconductor Products Inc P. O. Box 20912, Phoenix, Ariz. 85036, USA