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How to place a 6.29 MHz ceramic resonator?

Latest Updated:12/01/2011

Question:

I have placed a 6.29MHz ceramic resonator, but the result seems to be 4MHz operation.

Answer:

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.
Moreover, a setting of 2/3 division can be selected for the main system clock with the IECL1 register setting.
Also check how this is set. (If there is a possibility that the 4-MHz frequency is being used, this setting is possible the cause.)
Suitable Products
78K Family