| 摘要 |
The present invention provides a debug function built-in type microcomputer that is capable of restricting outputs only to necessary information to prevent necessary information from being terminated halfway and performing a more accurate tracing in real time, when an output signal line having a bit width fewer than a bit width of an inner bus is used for tracing information on the inner bus. The debug function built-in type microcomputer can be provided with registers that temporarily store bus information prepared for each target bus to be traced, a register writing condition judgment circuit that controls temporary storage of the bus information in the registers according to a trace condition stored in a setting register, and a multiplexer that selects and outputs the bus information temporarily stored in the registers.
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