205CHAPTER 2 DEPENDENCE FUNCTIONS2.4.1.2 MCU Operation ModeThere are two MCU operation modes as follows:• Debugging Mode• Native Mode■ Setting MCU Operation ModeSet the MCU operation mode.There are two operation modes: the debugging mode, and the native mode. Choose either one using the SETRUNMODE command.At emulator start-up, the MCU is in the debugging mode.The data access to internal bus may not be detected by emulator in native mode. Therefore, when the MCUoperation mode is changed, all the following are initialized:- Data breakpoints- Trace measurement settings and trace buffer■ Debugging ModeAll the operations of evaluation chips can be analyzed, but their operating speed is slower than that of mass-produced chips.■ Native ModeEvaluation chips have the same timing as mass-produced chips to control the operating speed. Note that therestrictions the shown in Table 2.4-1 are imposed on the debug functions.Table 2.4-1 Restrictions on Debug Functions in Native ModeApplicable series Restrictions on debug functionsCommon to all series - When a data read access occurs on the MCU internal bus, the internalbus access information is not sampled and stored in the trace buffer.- Even when a data break or event (data access condition) is set fordata on the MCU internal bus, it may not become a break factor orsequencer-triggering factor.- The coverage function may fail to detect an access to data on theMCU internal bus.
