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Page 67
5
8
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5
0
2
,
8
0
.
l
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J
1
2
.
1
.
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R
5. Electrical Characteristics (M32C/84)
VCC1=VCC2=3.3V
)
T
4
8
/
C
2
3
M
,
4
8
/
C
2
3
M
(
p
u
o
r
G
4
8
/
C
2
3
M
Switching Characteristics
(VCC1 = VCC2 = 3.0 to 3.6V, VSS = 0V at Topr = –20 to 85oC unless otherwise specified)
Table 5.41 Memory Expansion Mode and Microprocessor Mode
(when accessing an external memory space with the multiplexed bus)
l
o
b
m
y
Sr
e
t
e
m
a
r
a
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t
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a
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8
1s
n
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K
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B
(
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n
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m
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5
(
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(s
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R
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(
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(s
n
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S
C
-
K
L
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B
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m
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p
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8
1s
n
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C
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K
L
C
B
(
)
d
r
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K
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m
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-
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n
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R
(
)
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-
p
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5
(
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1
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N
(s
n
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t
)
S
C
-
R
W
(
)
d
r
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d
n
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R
W
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m
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-
p
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C
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5
(
)
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N
(s
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d
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D
R
-
K
L
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B
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m
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D
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R
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1s
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R
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B
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R
3
-s
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d
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W
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K
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m
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n
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D
(
)
d
r
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d
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m
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T
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a
l
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d
t
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p
t
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O
a
t
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D
)
2
e
t
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N
(s
n
h
t
)
B
D
-
R
W
(
)
d
r
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d
n
a
t
s
R
W
(
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m
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d
l
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H
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)
5
(
)
1
e
t
o
N
(s
n
d
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)
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L
A
-
K
L
C
B
(
)
d
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t
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8
1s
n
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B
(
)
d
r
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d
n
a
t
s
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L
C
B
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m
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H
t
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A
2
-s
n
d
t
)
E
L
A
-
D
A
(
)
d
r
a
d
n
a
t
s
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r
d
a
(
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m
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T
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D
t
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p
t
u
O
l
a
n
g
i
S
E
L
A
)
3
e
t
o
N
(s
n
h
t
)
D
A
-
E
L
A
(
)
d
r
a
d
n
a
t
s
e
r
d
a
(
e
m
i
T
d
l
o
H
t
u
p
t
u
O
l
a
n
g
i
S
E
L
A
)
4
e
t
o
N
(s
n
z
d
t
)
D
A
-
D
R
(
e
m
i
T
t
r
a
t
S
t
a
o
l
F
t
u
p
t
u
O
s
e
r
d
A
8s
n
td(DB – WR) =
10 X m
9
– 25
[ns] (if external bus cycle is a
φ + bφ, m=(b+2)-1)
th(RD – AD) =
f(BCLK) X 2
10 9
– 10
[ns]
th(WR – AD) =
f(BCLK) X 2
10 9
– 10
[ns]
th(RD – CS) =
f(BCLK) X 2
10 9
–10
[ns]
th(WR – CS) =
f(BCLK) X 2
10 9
– 10
[ns]
th(WR – DB) =
f(BCLK) X 2
10 9
– 20
[ns]
td(AD – ALE) =
f(BCLK) X 2
10 x n
9
– 20
[ns] (if external bus cycle is a
φ + bφ, n=a)
th(ALE – AD) =
f(BCLK) X 2
10 x n
9
– 10
[ns] (if external bus cycle is a
φ + bφ, n=a)
f(BCLK) X 2
NOTES:
1. Values can be obtained by the following equations, according to BLCK frequency.
2. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
3. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
4. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
5. tc ns is added when recovery cycle is inserted.
See Figure 5.2