MICROCOMPUTER, ELECTRONIC APPARATUS AND DEBUGGING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a microcomputer, an electronic apparatus and a debugging system capable of realizing an on-chip debugging function with a small instruction code size.

SOLUTION: This microcomputer includes: a central processing unit 22; and a first monitor means 40 for receiving and transmitting data from/to a second monitor means 62 to determine a primitive command to be executed based on the data received from the second monitor means 62 and for carrying out a process for executing the determined primitive command. The first monitor means 40 includes a monitor ROM 42 for storing a monitor program including an instruction code of the primitive command; and the data received from the second monitor means 62 includes identification data for identifying the primitive command. The first monitor means 40 executes a primitive command of an instruction code designated by identification data included in the received data when the reception data from the second monitor means 62 are received.

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