Specifications

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
41
Fig. 42 A-D converter block diagram
Fig. 41 Read of A-D conversion register
• 1 0 - b i t r e a d i n g
( R e a d a d d r e s s 0 0 3 5
1 6 , t h e n 0 0 1 41 6)
A - D c o n v e r s i o n h i g h - o r d e r r e g i s t e r
( A D H : A d d r e s s 0 0 3 5
1 6)
A - D c o n v e r s i o n l o w - o r d e r r e g i s t e r
( A D L : A d d r e s s 0 0 1 4
1 6)
b0
b 7
b0
b 1
b7 b6 b 5b 4b 3b2
b 7
b0
b 9b 8b
7
b6 b 5b
4
b 3b2
b 7
b 0
(high-order)
( l o w - o r d e r )
N o t e : Bi t s 0 t o 5 o f a d d r e s s 0 0 1 41 6 b e c o m e “ 0 ” a t r e a d i n g .
b1 b0
•8 - b i t r e a d i n g
( R e a d o n l y a d d r e s s 0 0 3 5
1 6)
A - D c o n v e r s i o n h i g h - o r d e r r e g i s t e r
( A D H : A d d r e s s 0 0 3 5
1 6)
C o n v e r s i o n m o d e s e l e c t i o n b i t
0 : 1 0 - b i t A - D m o d e
1 : 8 - b i t A - D m o d e
C
o m p a r a t o r
A
-
D
contro
l
c
i
rcu
it
ADT
/
A
-
D
interrupt
request
A
V
S
S
V
R E
F
P
6
0 /
S
I N 2 /
A
N
0
D
ata
b
u
s
A
-
D
c o n t r o
l
r e g
i
s t e r
b
7
b
0
A - D c o n v e r s i o n
h i g h - o r d e r r e g i s t e r
R
es
i
stor
l
a
dd
e
r
C
h
a
n
n
e
l
s
e
l
e
c
t
o
r
P
6 7 /
AN
7
P
6 6 /
AN
6
P
6 5 /
AN
5
P
6 4 /
AN
4
P
6
3 /
S
C L K 2 2 /
A
N
3
P
6
2 /
S
C L K2 1 /
A
N
2
P
6
1 /
S
O U T2 /
A
N
1
P
5
7 /
A
D
T
/
D
A
2
8
3
( A d d r e s s 0 0 3 5 1 6 )
A - D c o n v e r s i o n
l o w - o r d e r r e g i s t e r
( A d d r e s s 0 0 1 4
1 6 )
1 / 2 1 / 4
X
I N
A D C L K
A - D C o n v e r t e r C l o c k
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
M i d d l e - s p e e d m o d 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 φ