SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
47
Fig. 51 Internal state of microcomputer immediately after reset
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Register contents
Address
0
0
0
0
0
1
1
6
0
3
1
6
0
5
1
6
0
7
1
6
0009
16
0
0
0
0
0
0
0
1
0
1
B
1
6
D
1
6
F
1
6
5
1
6
6
1
6
0017
16
0019
16
0
1
A
1
6
001B
16
0
1
D
1
6
0020
16
0
2
0
2
1
1
6
2
1
6
0023
16
0024
16
0
2
0
2
5
1
6
6
1
6
0027
16
0
2
8
1
6
0029
16
002A
16
0
2
0
3
0
3
B
1
6
2
1
6
3
1
6
0034
16
0036
16
0
3
0
3
0
3
7
1
6
8
1
6
9
1
6
003A
16
003B
16
003C
16
003D
16
003E
16
0
3
F
1
6
(PS)
(PC
H
)
(P
C
L
)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33)
(34)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(35)
(36)
(37)
(38)
(39)
(40)
(41)
(42)
(43)
T
i
m
e
r
Y
(
l
o
w
)
P
o
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t
P
5
d
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c
t
i
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n
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g
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r
P
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t
P
6
d
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c
t
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n
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g
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r
P
U
L
L
r
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g
i
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t
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r
B
T
i
m
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r
Y
(
h
i
g
h
)
S
e
r
i
a
l
I
/
O
1
c
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t
r
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g
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r
U
A
R
T
c
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g
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r
Timer X (high)
Timer X (low)
Timer X mode register
i
m
e
r
Y
m
o
T
d
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g
i
s
t
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r
Timer 123 mode register
o
u
t
p
u
W
M
c
o
n
t
r
o
S
e
r
i
a
l
I
/
O
1
s
t
a
t
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g
i
s
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r
P
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t
P
7
d
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c
t
i
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n
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g
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r
A-D control register
S
C
In
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g
m
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p
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n
a
b
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g
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L
D
m
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g
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P
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L
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g
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A
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d
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s
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c
t
i
o
n
r
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g
i
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t
e
r
CPU mode register
Interrupt request register 1
Interrupt request register 2
Interrupt control register 1
In
t
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r
r
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t
c
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t
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s
s
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c
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r
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g
i
s
t
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r
2
P
t
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s
r
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g
i
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t
e
r
P
t
e
r
P
o
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t
P
4
d
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c
t
i
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n
r
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g
i
s
t
e
r
P
o
r
t
P
2
d
i
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e
c
t
i
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n
r
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g
i
s
t
e
r
P
o
r
t
P
3
o
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p
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c
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t
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g
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r
P
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P
1
d
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c
t
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g
i
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r
P
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t
P
0
d
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c
t
i
o
n
r
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g
i
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r
Timer 1
Timer 2
i
m
e
T
r
3
Key input control register
1 1 1 0 0 0
0
0
1 0 0 0 0 0
0
0
0 0 1 1 1 1
1
1
1 0 0 1 0
0
0
0
1
00
16
00
16
00
16
00
16
00
16
00
16
FF
16
00
16
00
16
00
16
0
1
6
00
16
00
16
00
16
00
16
FF
16
FF
16
00
16
00
16
00
16
3F
16
00
16
00
16
00
16
00
16
00
16
00
16
00
16
00
16
00
16
FF
16
FF
16
Contents of address FFFD
16
C
o
n
t
e
n
t
s
o
f
a
d
d
r
e
s
s
F
F
F
C
1
6
D-A control register
Watchdog timer control register
D
-
A
1
c
o
n
v
e
r
s
i
o
n
r
e
g
i
s
t
e
r
D-A2 conversion register
Serial I/O2 control register
T
O
U
T
/
φ
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
P
l
r
e
g
i
s
t
e
r
Watchdog timer (high-order)
(44)
Watchdog timer (low-order)
FF
16
01
16
00
16
0 0 0 1 0
0
0
0
3F
16
FF
16