MICROPROCESSOR AND METHODS FOR TRANSMITTING AND TRACING SIGNAL BETWEEN MICROPROCESSOR AND DEBUGGING TOOL

摘要

PURPOSE: To provide a debugging function to be sufficiently applied to a high speed processor by adding the comparatively small number of hardware parts to the microprocessor. CONSTITUTION: A debugging module 30 taking charge of a part of a debugging function is built in the microprocessor 10 and connected to a debugging tool 60 arranged on the outside of the processor 10. In a debugging mode, a processor core 20 in the processor 10 accesses and executes a monitor program stored in the tool 60 through the module 30. During the execution of a user program by the core 20 in a normal mode, the module 30 acquires trace information, sends the information to the tool 60 and executes processing relating to a brake point.