XR82C684CJ View Datasheet(PDF) - Exar Corporation
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MFG CO.
'XR82C684CJ' PDF : 107 Pages View PDF
XR82C684
C.6.3.2 8086 Microprocessor
00. (' ' %% (% . ( (' ' %%
*' & $ ( Figure 24 % %
( (, * (% $ Please note that in this
figure, pins 24 - 31 have some additional labels, located
off to the right of the package. These additional labels will
be explained later in this text.
$ 3 , , % 6 ( ' * (% $
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4 - 2
<=
0
B
.
9
@
4 5
5!H
55
;<!
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E
-$
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8086 CPU
Figure 24. Pin Out of the 8086
Microprocessor Device
E :- 8 (% 3# 00.• + (% (, (
/"1 (% (% ( * ' "
('( % ( 3 (' 00.+ I( % % *
00B (' ' %% :!+ $ (% #
% '( % ' 000 (% I( ,
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:$ :$ (% '( (, / %6 1 (
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( +( @ % Figure 20 ; 3 # (*
00.• + (% (, ( /"1 # $:
%(, % ( * # # (% (
000 % ' Table 12 % % ' %%
%% 000 '( % % # #
/"1 %% %(, %
Pin Number
@
9
.
B
0
4
4
MN/-MX = 1
(Min Mode)
;<!
;<!
E
-$
!-
!5:
<5
$:
MN/-MX = 0
(Max Mode)
- 2
- 2
<=
Table 11. MN/-MX Mode and Function of
Pins 24 - 31 of 8086 CPU Device
-S2 -S1 -S0 Processor State
$ '6 3 ,
$- +
E ( $- +
;
'' %%
&
E ( &
+%%(
8288 Active
Output
$:
$
$E
:
!
!
E
:
Table 12. 8086 Processor State/8288 Bus Controller
Active Output as a Function of -SO, -S1 and -S2
Figure 25 Figure 26 % 00. + #
3 (, ( /(1 /"1 %#
% '( &
9
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