ST7920
8-bit interface:
POWER ON
Wait time >40ms
XRESET LOW
HIGH
Function set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
1
1
X
0
X
X
Wait time >100uS
Function set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
1
1
X
0
X
X
Wait time >37uS
Display ON/OFF control
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
1
D
C
B
Wait time >100uS
Display clear
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
0
1
Wait time >10mS
Entry mode set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
I/D
0
0
0
0
0
0
0
1
S
Initialization end
V4.0
34/49
2008/08/18