HT16515
Serial Communication Format
·
Reception (command/data write)
C
S
C
L
K
1
2
3
7
8
b
0
b
1
b
2
b
6
b
7
D
I
·
Transmission (data read)
C
S
1
2
3
4
5
6
7
8
1
2
3
4
5
6
C
L
K
t
W
b
0
b
1
b
2
b
3
b
4
b
5
b
6
b
7
D
I
b
0
b
b
1
2
b
3
b
4
b
5
D
O
A
d
a
t
a
r
e
a
d
c
o
m
m
a
n
d
i
s
D
a
s
t
e
a
t
i
s
r
e
a
Be sure to connect an external pull-high resistor to this pin (1kW to 10kW).
Note: 1. When data is read, a wait time ²tW² of 1ms is necessary at 5V.
2. When data is read, a wait time ²tW² of 2ms is necessary at 3V.
·
Updating display memory by incrementing address
C
S
C
L
K
D
I
C
o
m
m
a
n
d
1
C
o
m
m
2
a
n
D
d
a
3
t
a
1
D
a
t
a
C
n
o
m
m
a
n
d
C
o
m
m
a
n
d
Note: Command 1: sets display mode
Command 2: sets data
Command 3: sets address
Data 1 to n: transfers display data (36 bytes max.)
Command 4: controls display
·
Updating specific addresses
C
S
C
L
K
D
I
C
o
m
m
a
C
n
o
d
m
1
m
a
n
d
D
a
2
t
a
C
o
m
m
a
n
D
d
a
2
t
a
n
Note: Command 1: sets data
Command 2: sets address
Data: display data
Rev. 1.70
9
May 7, 2010
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
