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Intel 80386

Intel 80386
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IDLE
150
ns SRAM/EPROM READ
,100
ns SRAM READ
150
NS I
150
ns
SRAM WRITE
150
ns SRAM/EPROM READ
IDLE
, NON·PIPELINED
PIPELINED SRAM/EPROM PIPELINED PIPELINED
READ PIPELINED ,
1
2
3 4 1
2 3
1231234
1
2
3
4
CLK
-'(1
if
:F
Y
:F
J
if
rf
~
:J
:F
:;
IF
t;F
Cf
:J
:;
:.;
U"
~
ADS#
\l
JJ
U.
JJ
\ \
/I
\..L
JJ
\l
JJ
ADDR
xt/..
xt/..
rtf/..
DATA
'If.
READ
READ READ
WRITE
READ
SEL
1'fJJ:f/JJ.
UJ
(J)
ALE
1
00
\
h-
r--
h
In
n
DEN#
'\
I
iL
r\
'I
1\
r
-\
II
MRDC#
\ I 1\
1/\
II
,\
II
MWTC#
1\
J
NA#
:U
IU
U
IU
:u
READY#
LJ
IL-V
LV
ILl
ILV
t
t
I
FJAT
t
t
FLOAT
NO FLOAT
FLOAT
FLOAT
I
I
I
I
1
Figure 6-5. Bus Control Signal Timing
150 ns SRAM/EPROM READ
NON·PIPELINED
1
2
3 4
Cf
U'
U-
:F
Lf
'-
\l
Ir1f
\
IY
IAI
'f.fJJ..
f/:i
READ
I,
h
1\
1/
-
\
Ii
-
u
-
IL
I!
r-
G30107
l
3:
m
3:
o
:II
-<
Z
....
m
:II
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o
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C)

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