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Other Information
The following screens give additional information about the S100.
Engine Time
The engine time is read directly from the timing engine.
Clock Settings
The clock settings here are:
Oscillator - This is internal to the timing engine.
DAC Value - A 16-bit Digital Analog Converter is used to set the frequency on the oscillator.
The value here shows a rate match between the hardware clock frequency and the selected
time reference source.
Jam Control - "Jam" refers to jam synchronization. This controls whether or not the
software may "jam" the clock circuitry if a phase discontinuity of greater than 1 millisecond is
found.
Battery Status - The timing engine's battery status is noted here.
Clock Value - This register shows the number of 100ns steps needed to advance or slow
down the phase of the local clock circuit.
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Figure 4-18: Timing Engine Time
Figure 4-19: Clock Settings
SyncServer S100
S100 User Guide – Rev. D – June 2005
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