APU0071
4-2. 4-bit interface mode
Power on
Wait for more than 20ms
after VDD rises to 4.5V
Function set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 0010XXXX
Wait for more than 37µs
Function set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 0010XXXX
0 0 A X M1 M0 X X X X
Condition : fOSC = 270kHz
0 4-bit interface
DL
1 8-bit interface
0 DDRAM Addressing mode 1
A
1 DDRAM Addressing mode 2
0 COM / SEG output rotation mode A
M0
1 COM / SEG output rotation mode B
0 1line 16 character display mode
M1
1 2line 8 character display mode
Wait for more than 37µs
Display ON/OFF Control
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00000 0XXXX
0 0 1DCBXXXX
0 display off
D
1 display on
0 cursor off
C
1 cursor on
0 blink off
B
1 blink on
Wait for more than 37µs
Display Clear
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 0000XXXX
00 0001XXXX
Entry Mode Set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0XXXX
0 0 0 1 I / D SH X X X X
0
I/D
1
0
S
1
decrement mode
increment mode
entire shift off
entire shift on
Initialization End
Copyright ANPEC Electronics Corp.
22
Rev. A.07 - FEB., 2002
www.anpec.com.tw