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XR88C681 Datasheet(PDF) 52 Page - Exar Corporation

Part # XR88C681
Description  CMOS DUAL CHANNEL UART (DUART)
Download  99 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XR88C681 Datasheet(HTML) 52 Page - Exar Corporation

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XR88C681
6
  
D.2 Bit Rate Generator
 *0 *(  0  '' %  ((- 
+  %'( ('( $ -   ''3 %(- +
1 '& % $ $ '('( (  % -(-
+ 6 %   63% Please note that the BRG
will only generate these standard bit rates if the Oscillator
Circuit is running at 3.6864 MHz
 $$((&"  '
''3 + E '( %  +  *0   / ( %
 %  %
 %  ' %  '  +  $(++   % % + (  %" 
 -  $ +  *0 (% %  '( (% $ &
% (-  ' (- N>O(%(- +  % % % + *(
 %" +  *0" (%  %  $ (  $(%'%%( + 
'3   '  -(% % % ( Section D.5'3
$(- +  *0 '('(& (%  %  $ ( Figure 27
%'(
('(
5.9:
5
*(  0 
 %$ *
N>O
*N14O
14  5
5*
*N>4<O
14  5
5*
N>4<O
14  5
5
N14O
14  5
5
Figure 27. Block Diagram of the Bit Rate Generator portion of the Timing Control Block


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