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Renesas Electronics Europe - Knowledgebase

How to place a 6.29 MHz ceramic resonator?

Last Updated:11/14/2017


I placed a 6.29MHz ceramic resonator, but my system seems to be running at 4MHz.


Perhaps the clock selected with the debugger has been set to the target (external).
If the clock is internal, the clock originally mounted in the emulator gets used.
In addition, a setting of 2/3 division can be selected for the main system clock with the IECL1 register setting, check how this is set.
If there is the possibility that the 4-MHz frequency is being used, this setting is possibly the cause.
Suitable Products
78K Family