1984-02-01

A Small Area Network for Cars 840317

A serial bus structure (the digital data bus) is being implemented on the 80C51, a CMOS microcomputer which will permit efficient and economical small area networks to be designed into the automobile. The system provides the designer with several new alternative solutions to design problems.
The concept of a multiple master small area network was derived by N.V. Philips Corporation and Signetics Corporation in defining the digital data bus (D2B). The D2B protocol permits arbitration between several units to gain control of the bus to satisfy the requirements of a multi-master system. The protocol permits not only the addressed device but also the controlling device (master) to be identified.
Following the description of small area networks and the D2B protocol, several possible automotive applications are discussed.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X