
103
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 87 Timing diagram (3) (in memory expansion mode and microprocessor mode)
0
.
5
V
C
C
R
D
,
W
R
0
.
5
V
C
C
A
D
1
5
–
A
D
8
t
d
(
A
H
-
W
R
)
t
v
(
W
R
-
A
H
)
0
.
5
V
C
C
A
D
7
–
A
D
0
t
d
(
A
L
-
W
R
)
t
v
(
W
R
-
A
L
)
0
.
8
V
C
C
0
.
2
V
C
C
D
B
0
–
D
B
7
0
.
5
V
C
C
R
D
t
S
U
(
D
B
-
R
D
)
t
h
(
R
D
-
D
B
)
0
.
5
V
C
C
D
B
0
–
D
B
7
0
.
5
V
C
C
W
R
t
d
(
W
R
-
D
B
)
t
v
(
W
R
-
D
B
)
t
h
(
W
R
-
O
N
W
)
0
.
8
V
C
C
0
.
2
V
C
C
O
N
W
t
s
u
(
O
N
W
-
W
R
)
t
v
(
R
D
-
A
H
)
t
d
(
A
H
-
R
D
)
t
d
(
A
L
-
R
D
)
t
v
(
R
D
-
A
L
)
t
h
(
R
D
-
O
N
W
)
t
s
u
(
O
N
W
-
R
D
)
t
W
L
(
R
D
)
t
W
L
(
W
R
)
(
A
t
C
P
U
r
e
a
d
i
n
g
)
(
A
t
C
P
U
w
r
i
t
i
n
g
)
T
i
m
i
n
g
d
i
a
g
r
a
m
i
n
m
e
m
o
r
y
e
x
p
a
n
s
i
o
n
m
o
d
e
a
n
d
m
i
c
r
o
p
r
o
c
e
s
s
o
r
m
o
d
e
(
2
)
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