Can Communication Control Circuit

CAN communication control circuit is incorporated into the control unit and transmits/receives CAN communication signals.

Fig 1: CAN Communication Control Circuit Diagram

Courtesy of NISSAN NORTH AMERICA, INC.

Component	System description
CAN controller	It controls CAN communication signal transmission and reception, error detection, etc.
Transceiver IC	It converts digital signal into CAN communication signal, and CAN communication signal into digital signal.
Noise filter	It eliminates noise of CAN communication signal.
Termination circuit^* (Resistance of approx. 120 Ω)	Generates a potential difference between CAN-H and CAN-L.

* : These are the only control units wired with both ends of CAN communication system.