HT1620
Timing Diagrams
READ mode (command code: 1 1 0)
C
S
W
R
R
D
0
A
5
A
3
A
2
D
2
D
3
0
A
5
A
3
A
2
D
2
D
1
3
A
4
A
1
A
0
D
0
D
1
A
4
A
1
A
0
D
0
D
1
1
1
1
D
A
T
A
M
e
m
o
r
y
A
d
d
r
D
e
s
a
s
t
a
1
(
M
(
M
A
A
1
1
)
)
M
e
m
o
r
y
A
d
d
r
e
s
s
2
(
M
D
A
a
2
t
)
a
(
M
READ mode (successive address reading)
C
S
W
R
R
D
0
A
5
A
3
A
2
D
2
D
3
D
2
D
3
D
2
D
3
D
2
D
3
D
A
4
A
1
A
0
D
0
D
1
D
0
D
1
D
0
D
1
D
0
D
1
0
1
1
D
A
T
A
M
e
m
o
r
y
A
d
d
r
e
s
s
(
M
D
A
a
)
t
a
(
M
D
A
a
t
+
a
1
(
)
M
A
D
)
a
t
a
(
M
A
+
2
)
D
a
t
a
(
M
A
+
WRITE mode (command code: 1 0 1)
C
W
S
R
1
A
5
A
3
A
2
D
2
D
3
1
A
5
A
3
A
2
D
2
D
1
3
A
4
A
1
A
0
D
0
D
1
A
4
A
1
A
0
D
0
D
1
0
1
0
D
A
T
A
M
e
m
o
r
y
A
d
d
r
e
s
s
1
(
M
A
1
)
M
e
m
D
o
a
r
t
a
(
A
M
d
A
d
1
r
)
e
s
s
2
(
M
A
2
)
D
a
t
a
(
M
11
July 26, 1999