HD66710 Datasheet, PDF (58/73 Pages) Hitachi Semiconductor – (Dot Matrix Liquid Crystal Display Controller/Driver)

HD66710
Initializing by Instruction
If the power supply conditions for correctly operating the internal reset circuit are not met, initialization
by instructions becomes necessary.
Power on
• Wait for more than 15 ms
after V_CC rises to 4.5V
(V_CC = 5V)
• Wait for more than 40 ms
after V_CC rises to 2.7V
(V_CC = 3V)
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
000011****
Wait for more than 4.1 ms
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
000011****
Wait for more than 100 µs
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
000011****
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
000011N0 * *
0000001000
0000000001
0 0 0 0 0 0 0 1 I/D S
BF cannot be checked before this instruction.
Function set (Interface is 8 bits long.)
BF cannot be checked before this instruction.
Function set (Interface is 8 bits long.)
BF cannot be checked before this instruction.
Function set (Interface is 8 bits long.)
BF can be checked after the following instructions.
When BF is not checked, the waiting time between
instructions is longer than the execution instuction
time. (See Table 7.)
Function set
Display off
Display clear
Entry mode set
Initialization ends
Figure 25 8-Bit Interface
348