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Kold666
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Reged: 10/29/03
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tms5200 clock frequency
01/04/08 01:23 AM


I am measuring clocks on my Money Money pcb but I have a problem with the tms5200 clock.

The frequency counter measure a clock of 565khz instead of 640khz as stated in mame.
The problem is that there isn't a resonator near the tms5200. The clock pin is connected to some resistors, capacitors and transistors. it is possible also that the trace goes to the 3.58mhz osc but I can't follow anymore the traces.

I believe the clock is made on the pcb with discrete components or discrete components are used as divisors
In this case, what value should be put in mame?







Entire thread
Subject Posted by Posted on
* tms5200 clock frequency Kold666 01/04/08 01:23 AM
. * Re: tms5200 clock frequency Lord Nightmare  05/06/10 06:00 AM
. * Re: tms5200 clock frequency StilettoAdministrator  05/06/10 07:33 AM
. * Re: tms5200 clock frequency Lord Nightmare  05/18/10 10:07 AM
. * Re: tms5200 clock frequency Kold666  11/08/10 05:37 PM

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