XR88C681CP Datasheet, PDF (57/99 Pages) Exar Corporation – CMOS DUAL CHANNEL UART (DUART)

XR88C681
Figure 30. Receiver (1X) Sampling, if the RX Clock is Slightly Faster Than the TX Clock
Figure 30 % %      % ( % (    '(H% %( - (   $ ' %( $ ( (% '  -( -
#  (% '%"   '( (% %( - ' %( $ (" (  $ ( (   ( ($" ( ' %''%%( $
(  (%     (% 3  % '( $(+ #+   (%  ''( + '( $(+"   (   & % (  
 %(%%(  $ '( +  (% %( $" % $('$ ( Figure 31
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Figure 31. Illustration of an Error due to Receiver Drift
Figure 31 % %   '( %( -  (-  ( %( - + $ ( (   It is interesting to note that, in
Figure 31, the Receiver sampled 01010010 # % $  $   '( $(+ ' %    (%   '
'( (% %       %( ''3
 
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