English
Language : 

XR68C681 Datasheet, PDF (23/75 Pages) Exar Corporation – CMOS Dual Channel UART (DUART)
XR68C681
Figure 4  % %  (( - $(- $ ('( -  % C ' +  %   ( ''    ., (  +' " $( -
 (   % '&' 
#8
#,: 
#,:
  
  1
=  1
# 7
  @
 7
;2
Figure 4. XR68C681/68000 CPU Interrupt Cycle Timing
Interrupt Service Routine
 L '( % +  (   % (' (   4
 )('3& ($ (+&  ' $(( '%( -  (  
 C %
 )('3& % ('  (   & (( ( - 
' $(( '%( -  #  
# $   ($ (+&  '% +  (  "  ,
%  $  (   %%  -(%   %3 $
#  % %  -(%  +     '  % +
 # ($ (+( %  ' $(( % '%( -  (  
 C % Section C.1 $ +( %  ( + +  #  $
$(%'%% %   '  ' +  (% ( (  #
D. TIMING CONTROL BLOCK
 (( - '  '3 %  %   % '(+&  (
 %   .% (% %   %(  $  ' ( $ 
' '    (( - '  '3 ' %(%% + 
+( -   %4
 %'( ('(
 *(  0 
 / (   .( 
 =  2!   #  ,( %  ''3   %( %
 $  ' ( %" $( '&
  '3   '  -(% % 14  5%
  
1