XR82C684CJ-F Datasheet, PDF (81/107 Pages) Exar Corporation – CMOS Quad Channel UART(QUART)

XR82C684
Bit 7
Bit 6
Channel Mode
 L : 
 L  5'
 L < ' < 
 L   < 
Bit 5
Bit 4
Tx RTS Control CTS Enable Tx
L:
L:
 L H%
 L H%
Bit 3
Bit 2
Bit 1
Bit 0
Stop Bit Length
 L 9.4
0 L 9.4
 L .9
 L .9
 L .00
 L .00
4 L B9
) L B9
@ L 04

L 04
9 L 0B9
! L 0B9
. L 40
5 L 40
B L 
 L 
Table 26. Mode Registers - MR2A, MR2B, MR2C, MR2D
MR1n[7] - Receiver Request to Send Control
( (&#  I%    (% %%  ,
& (  6( ,   /  +  )(%
 1  /

 +  )(%
 1 (    (  
; 3# (*  PBQ L  (% %#     '( 3( 
'      ,( *     '(*('&#
%( ,  (% ( 3(  3   '(  ,  (* (%
; (% *  (% /* 3 '  1 ' (I (% %* (
 ( , '(  5 %
Figure 42 % %  (, 3 (' (%% 3 
'(
  I%   ' *(,(
3  * '( 
MR1n[6] - Receiver Interrupt Select
 (% ( %'% (    8!H %% (     <<
%% ( *   '     % %   '(( * 
, ( ,  $  I%   
+ #   %( ,
  *  3( , $  % ,(% (%7 $PQ#
$P9Q# $PQ#   $P9Q * 
 % # )#
  !#
%'(&
MR1n[5] - Error Mode Select
 (% ( '  %   ( *     $ %% (%
+5# 5# '( )6 *   
  $*  (% ( (% %
 /1#  (% (' '   3(  (  
/
'1 5    $*  (% (% (% %  /1#  (%
(' '   3(  (   /) '61 5   
$   ' '    % %% (% & &   
' '   (% ' &      *   $ $  
 '6  #  % (% %    '(  ,('
 *   %% *   ' '% ' ( ,      *  
$ %( '   % /% 5  %1 '   *   

  3% (%%
MR1n[4:3] - Parity Mode Select
$* /3( (&1  /* ' (&1 ( (%  ,# 
(& ( (%      %( ' '%    
'( * %  (& ' '6 '( ' '%
 Section H.2 *  %'(( * (!   
( 
MR1n[2] - Parity Type Select
 (% ( %'% !!  5>5: (& (* /E( +(&  1 (%
 ,     % *   * ' (& ( (*  
/ ' +(&1   (%  , $   (! 
  ( %'%   % *   -! *, (  (% ( %
**' (* /: +(&1 (% %' (  P@74Q
MR1n[1:0] - Bits per Character Select
'%    * (%    %(   '(
(    *( *   ' '  (%  %  ( '
# +$H#   + (%
Mode Register 2 (Channels A, B, C and D)
 *  '
  (% ''%% 3   
 K%
 + (   ( %   # 3 (' ''% *  &
''%%   
 K%  ,(% %I 
/%1  /3(%1    %  '  ,   '  %
*     ( 
MR2n[7:6] - Channel Mode Select
5'
  '  (  * *   %
 ( ,  PB7.Q L  ' *(,%   '   
 (   :    $  (%  #  
 
0