Control device and communication method in control device

Abstract

A motor control device includes an MCU and a predriver configuring at least a part of a circuit for controlling driving of a motor. The MCU includes a communication timing judgment portion, outputting a communication verification command when a diagnostic signal including information indicating whether the mechanism or equipment to be controlled by a combination of the MCU and the predriver is in a fail state is input from the predriver to the MCU; a signal content judgment portion, judging whether a content of the diagnostic signal is in the fail state when the communication verification command is input and outputting a communication execution command when the content of the diagnostic signal indicates the fail state; and a communication portion, executing a communication between the MCU and the predriver for reading fail information of the predriver when the communication execution command is input.

Dependencies are inferred from the claim text.