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Chapter 4:Connecting the Emulator to a Target System
Selecting a clock module
If a different clock frequency is required
If a different frequency is required, User Definable Clock Module D of the HP
64780-66507 provides a platform to customize a clock circuit similar to the
standard frequency clock modules. Choose appropriate values for the given
topology. Use a parallel resonant crystal. If the prescaler will be used, load R6
with a 0-ohm resistor. Otherwise, leave R6 unloaded.
If you do not wish to use Clock Module D, any 14-pin header can be used as a
platform to develop your custom crystal circuit. Make sure all connections shown
on the User Definable Clock Module are made on your header.
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