and decoding SCLK.
<P>
 
   To continue our analogy, say our wall clock was being used to keep time
   throughout an entire day. Then 10:05:50 is ambiguous, because we don't
   know if it falls in the morning or evening ``partition.'' So we append
   the indicators ``a.m.''\ or ``p.m.''\ to be clear.
<P>
 
   We handle SCLK similarly. Instead of just converting a clock count to
   ticks (10:05:50 to 36350), we take into account the partition that the
   count falls in, and compute the number of ticks since 