Specifications

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
55
Fig. 61 Clock generating circuit block diagram
W
I
T
i n s t r u c t i o n
STP
i
nstruct
i
on
S
ystem c
l
oc
k
φ
S
R
Q
STP
i
nstruct
i
on
S
R
Q
M
a
i
n c
l
oc
k
stop
bi
t
S
R
Q
T
i
m e r 2
Ti
mer 1
1 / 2 1/4
X
I N
X
O U T
X
C O U T
X
CIN
I
n t e r r u p t r e q u e s
t
R
e s e t
T
i
m e r 1 c o u n t
s o u r c e s e l e c t i o n
b i t
Ti
mer 2 count
source selection
bit
L
o w - s p e e
d
m o
d
e
M
i
d
d
l
e - /
H
i
g
h
- s p e e
d
m o
d
e
S
y s t e m c
l
o c
k
s e
l
e c t
i
o n
b
i
t
(N
o t e
)
Middl
e-spee
d
mo
d
e
Hi
g
h
-spee
d
mo
d
e
or Low-speed mode
N
ote:
Wh
en us
i
ng t
h
e su
b
c
l
oc
k
f
or t
h
e system c
l
oc
k
φ, set t
h
e
X
C sw
i
tc
h
bi
t to “1”.
M
a
i
n c
l
o c
k
d
i
v
i
s
i
o n r a t
i
o s e
l
e c t
i
o n
b
i
t
“ 1 ”
“ 0 ”
“ 1 ”
“ 0 ”
I
n t e r r u p t
d
i
s a
b
l
e
f
l
a g
I
1 / 2
X
C s w
i
t c
h
b
i
t
(N
o t e
)
“ 1 ”
“ 0 ”