HT16525
Command Table
Bit7
(MSB)
Bit0
(LSB)
Function Byte R/W
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Note
Default
DDRAM
data write
Xn: Address specification
for each RAM
1st
W
W
0
0
0
X4
C4
X3
C3
X2
C2
X1
C1
X0
C0
00H
—
DDRAM
data
Cn: character code
specification for each RAM
2nd
C7
C6
C5
CGRAM
data write
Xn: Address specification
for each RAM
1st
2nd
3rd
4th
5th
6th
W
W
W
W
W
W
0
0
1
*
*
X2
X1
X0
C0
C1
C2
C3
C4
20H
—
CGRAM
Data
C35 C30 C25 C20 C15 C10 C5
C36 C31 C26 C21 C16 C11 C6
C37 C32 C27 C22 C17 C12 C7
C38 C33 C28 C23 C18 C13 C8
C39 C34 C29 C24 C19 C14 C9
CGRAM
Data
—
CGRAM
Data
Cn: character code
specification for each RAM
—
CGRAM
Data
—
CGRAM
Data
—
ADRAM
data write
Xn: Address specification
for each RAM
1st
W
W
0
*
1
*
0
*
X4
*
X3
*
X2
*
X1
C1
X0
C0
40H
—
ADRAM
Data
Cn: character code
specification for each RAM
2nd
General
output
port set
Pn: General output port
status specification
1st
1st
1st
W
W
W
0
1
1
1
0
0
1
0
1
*
*
*
*
*
*
P2
D1
K1
P1
D0
K0
63H
80H
A0H
Display
duty set
Dn: display duty
specification
D2
K2
Number
of digits
set
Kn: Number of digits
specification
K3
D: display on/off instruction
S: standby mode instruction
H: all lights ON instruction
L: all lights OFF instruction
All lights
ON/OFF
1st
1st
W
W
1
1
1
1
0
1
*
D
0
S
0
H
0
L
0
C0H
E0H
TEST
mode
For HOLTEK internal
testing
0
Rev. 1.00
11
January 18, 2012
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
