XR68C681 View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XR68C681

CMOS Dual Channel UART(DUART)

Exar Corporation 

Prev 31 32 33 34 35 36 37 38 39 40 Next

% %

  ($(

+   *(

 *( ,($

XR68C681

@ /5 ''3

($%

Figure 13. The Typical Sampling Pattern of each Receiver

within the XR68C681 Device.

  %(- ' (C ((-% & +   %(

$ ( % & (-  $L%   '(

%(- ("     ($( +   ( ($%"  

' '  ' ' %(%  (% ' (% %''%%+

+  %%4

 # ++% ($(' ''(    '( %(-

(

 # ((%   '( $(+   

%(- ( $L%%  &('&  % 

(% < ( ' ' ? (& $ , (%

 +" (+   % %'%  '( $   $ 

+ / $K  $'( +    ("  

'( ( -( %(-   $  / ! / J

61"/ 9G 9" '   '( %

%$     @ 61/ 39G ''3 %" ( (

3  (% '( %   ($( +    ( 

 (% ( "   61/ 39G ''3 %(- (% $(($$ & / 

-   % ''3 / 9G +   ((-

$ $  $ (% +   ' '

  5/<
/< $(' -(%   %   ( 

$'  ! ( ''3 %(- % (   5 

/5 ''3 %(- A    % (% -(  ' (' 

% (    5  /5 ''3 %(-   
'3 '

-(%%"   % (% $(%$  &% %   /5

''3" ( $  ((-   ++'% + '( $(+  

% (% +  $(%$   %   5 ''3 +%

+   " %%   ('(- %( $ % (%

%&' % (   '( 5 ''3

D.7 Application Examples using the Timing Control

Block

# $  '(+&   % +   %%% ( (   ((-

' '3"   !%  ('$$

Example A: Using the BRG

%     % (% %  '( $ %( $

   + 63% ( '     % % $  

+(-

 %  1/</= 9G '&% %'( '%%  

5.
:7 $ 5 (%K  $((-  1/</= 9G :

%(- (   5.
:7 ( (   5 ( +(-

 A( / 
$ -(% 

 (% % ( %   %( *0 ' 2!$

( 5 J 

1 A( </ 
$ -(% 

 (% % ( %   '( *0 ' 2!$ (

5 J 

= A( !!!!!!! 


 (% % %'% H*( I  P  Table 9 +  (%

$ % 

A     %++(! $%  (& !%%(" $ !

$%  H$. 'I  +   (& !%%(

6 A( <</ 


 (% % %%   '( $ %( (  +

'   63%  Table 8 $ Table 9

 

11

Share Link: