Circuit/System Description

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent malfunction detection ability. Many electronic control units are equipped onto a vehicle, and each electronic control unit shares information and links with other electronic control units during operation (not independently). In CAN communication, electronic control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring. Each electronic control unit transmits/receives data but selectively reads required data only.