Specifications
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
56
Fig. 62 State transitions of system clock
N
o
t
e
s
1
:
S
w
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.
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2
:
T
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a
l
l
m
o
d
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s
c
a
n
b
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s
w
i
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c
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d
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m
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o
r
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w
a
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m
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i
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d
.
3
:
W
h
e
n
t
h
e
s
t
o
p
m
o
d
e
i
s
e
n
d
e
d
,
a
d
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l
a
y
t
i
m
e
c
a
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b
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s
e
t
b
y
t
i
m
e
r
1
a
n
d
t
i
m
e
r
2
.
4:
T
i
m
e
r
a
n
d
L
C
D
o
p
e
r
a
t
e
i
n
t
h
e
w
a
i
t
m
o
d
e
.
5
:
W
a
i
t
u
n
t
i
l
o
s
c
i
l
l
a
t
i
o
n
s
t
a
b
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z
e
s
a
f
t
e
r
o
s
c
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l
l
a
t
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n
g
t
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m
a
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n
c
l
o
c
k
b
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f
o
r
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e
s
w
i
t
c
h
i
n
g
f
r
o
m
t
h
e
l
o
w
-
s
p
e
e
d
m
o
d
e
t
o
m
i
d
d
l
e
-
/
h
i
g
h
-
s
p
e
e
d
m
o
d
e
.
6
:
T
h
e
e
x
a
m
p
l
e
a
s
s
u
m
e
s
t
h
a
t
8
M
H
z
i
s
b
e
i
n
g
a
p
p
l
i
e
d
t
o
t
h
e
X
I
N
p
i
n
a
n
d
3
2
k
H
z
t
o
t
h
e
XC
I
N
p
i
n
.
φ
i
n
d
i
c
a
t
e
s
t
h
e
s
y
s
t
e
m
c
l
o
c
k
.
CM
4 :
X
c sw
i
tc
h
bi
t
0: Oscillation stop
1: X
CIN, XCOUT
CM5 : Main clock (XIN–XOUT) stop bit
0: Oscillating
1: Stopped
CM
6 : Main clock division ratio selection bit
0: f(X
IN)/2 (high-speed mode)
1: f(X
IN)/8 (middle-speed mode)
CM
7 : System clock selection bit
0: X
IN–XOUT selected
(middle-/high-speed mode)
1: X
CIN–XCOUT selected
(low-speed mode)
CPU
mo
d
e reg
i
ster
(CPUM : address 003B
16)
b
7
b
4
R
e
s
e
t
CM
6
“0”“1”
C
M
6
“
0
”“
1
”
C
M5
“
0
”“
1
”
C
M
5
“
0
”“
1
”
“
0
”
C
M
5
C
M
6
“
0
”
“
1
”
“
0
”
“
1
”
C
M
5
C
M
6
“
1
”
“
1
”
“
0
”
C
M
6
“0”“1”
C
M7
“
0
”
“
1
”
C
M
7
“
0
”
“
1
”
C
M
7
=
0
(
8
M
H
z
s
e
l
e
c
t
e
d
)
C
M6
=
1
(
M
i
d
d
l
e
-
s
p
e
e
d
)
C
M
5
=
0
(
8
M
H
z
o
s
c
i
l
l
a
t
i
n
g
)
C
M
4
=
0
(
3
2
k
H
z
s
t
o
p
p
e
d
)
Middl
e-spee
d
mo
d
e
(f(φ) = 1 MHz)
C
M
6
“
0
”“
1
”
C
M4
“
0
”
“
1
”
C
M
4
“
0
”
“
1
”
CM
7 = 0
(
8
MH
z se
l
ecte
d)
CM6 = 0 (High-speed)
CM
5 = 0 (8 MHz oscillating)
CM
4 = 0 (32 kHz stopped)
Hi
g
h
-spee
d
mo
d
e
(f(φ) = 4 MHz)
CM
7 = 0
(
8
MH
z se
l
ecte
d)
CM6 = 1 (Middle-speed)
CM
5 = 0 (8 MHz oscillating)
CM
4 = 1 (32 kHz oscillating)
Middl
e-spee
d
mo
d
e
(f(φ) = 1 MHz)
CM
7 = 0
(
8
MH
z se
l
ecte
d)
CM6 = 0 (High-speed)
CM
5 = 0 (8 MHz oscillating)
CM
4 = 1 (32 kHz oscillating)
Hi
g
h
-spee
d
mo
d
e
(f(φ) = 4 MHz)
C
M
4
C
M
6
“
0
”
“
1
”
“
0
”
“
1
”
C
M
4
C
M
6
“
1
”
“
1
”
“
0
”
“
0
”
CM
7 = 1
(
32
kH
z se
l
ecte
d)
CM6 = 1 (Middle-speed)
CM
5 = 0 (8 MHz oscillating)
CM
4 = 1 (32 kHz oscillating)
L
o
w-
s
p
e
e
d
m
o
d
e
(
f
(φ
)
=
1
6
k
H
z
)
CM
7 = 1
(
32
kH
z se
l
ecte
d)
CM6 = 0 (High-speed)
CM
5 = 0 (8 MHz oscillating)
CM
4 = 1 (32 kHz oscillating)
L
o
w-
s
p
e
e
d
m
o
d
e
(
f
(φ
)
=
1
6
k
H
z
)
CM
7 = 1
(
32
kH
z se
l
ecte
d)
CM6 = 1 (Middle-speed)
CM
5 = 1 (8 MHz stopped)
CM
4 = 1 (32 kHz oscillating)
L
o
w-
s
p
e
e
d
m
o
d
e
(
f
(φ
)
=
1
6
k
H
z
)
CM
7 = 1
(
32
kH
z se
l
ecte
d)
CM6 = 0 (High-speed)
CM
5 = 1 (8 MHz stopped)
CM
4 = 1 (32 kHz oscillating)
L
o
w-
s
p
e
e
d
m
o
d
e
(
f
(φ
)
=
1
6
k
H
z
)