XR82C684
<=
$:
! !B
<=
!5:
!
E
$
$E
!-
$:
<5
8288 Bus Controller
!0 !9
!
74LS373
8086 CPU
:-8
!
74LS373
Figure 26. Schematic of the 8086 CPU Mode (Max Mode)
5
5E
$
$E
! !B
B
!0 !9
0 9
8086 • C Interrupt Processing
$* ( ' I(% ( %(' *
+# ( 3( %% +K% $: ( & ,,(, (
(, ' + % ' (% '
(%'( # ( 3( %% $: ( (* (, (
/(1 % # # (% /1 %
$ ( '%# $= ( * ( 3(
%% ' (% %# ((, (
(% "' ' /( ' 1 & ! !B
* % 00.• + 3( (%
(& (% & @ ( (
'( * ( %(' ( ( &
(' (% /( ' 1 (% 0 (% 3(# 00.• + '
'' 9. (** ( ' %
99 (( &# %(' ' ' (% (( & /@1#
% (% "' % *(% = & * &
* $ (' (%-A
Figure 27 %% %' (' * 80.0@
(*'(, /(1 00. + ('
Please note that the QUART has been configured to
operate in the Z-Mode. Therefore, the user must account
for the IEI input to the QUART device.
9