A Multiplexing Communication IC for Automotive Body-Electronic Control

Paper #:
  • 940364

Published:
  • 1994-03-01
Citation:
Shinojima, Y., Kawakami, M., and Kawahashi, A., "A Multiplexing Communication IC for Automotive Body-Electronic Control," SAE Technical Paper 940364, 1994, https://doi.org/10.4271/940364.
Pages:
10
Abstract:
In the field of automotive body electronic control such as control of door locks, power windows, and wipers, there is a growing need of multiplexing communication to reduce the amount of wire harnesses. To meet this need, we developed a multiplexing communication protocol particularly suited to the body electronic control. Based on the developed protocol, we designed a communication control IC and a simple driver/receiver circuit with a few discrete components.The bus access method of the communication is the CSMA/CD with nondestructive bit arbitration, and its bit rate is 5 kbps. Its transmission media is a single wire. The communication IC has a multiplexing control block and a serial I/O block for an interface with a host CPU. It was fabricated using CMOS technology and has a chip of 2.6mm x 3.0mm in size that contains about 5,000 transistors. The driver/receiver circuit consists of one transistor, one capacitor and several resistors. Therefore, the cost of the circuit is quite low.This paper gives a detailed description of the design specification and features of the communication control IC and the driver/receiver circuit.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2010-03-15
Technical Paper / Journal Article
2010-04-12
Article
2017-03-13
Training / Education
2007-03-01