MSM6222 OKI [OKI electronic componets], MSM6222 Datasheet - Page 42

• Manufacturer Part Number: MSM6222
• Description: DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
• Manufacturer: OKI [OKI electronic componets]

¡ Semiconductor
(2) When data input/output to and from the CPU is carried out by 4 bits (DB
q Turn on the power.
w Wait for 15 ms or more after V
e Set 8B/4B at "H" by initial setting of instruction.
r Wait for 4.1 ms or more.
t Set 8B/4B at "H" by initial setting of instruction.
y Wait for 100 ms or more.
u Set 8B/4B at "H" by initial setting of instruction.
i Check the busy flag as No Busy.
o Set 8B/4B at "L". Set LCD line number (N) and character font (F).
!0 Wait for 100 ms or more.
!1 Set 8B/4B at "L". Set LCD line number (N) and character font (F).
!2 Check No Busy.
!3 Clear the display by setting the display mode.
!4 Check No Busy.
!5 Clear the display.
!6 Check No Busy.
!7 Set the shift mode.
!8 Check No Busy.
!9 Initialization completed.
Example of Instruction Code for Steps e, t, and u.
Example of Instruction Code for Step i.
Example of Instruction Code for Step o.
Execute two-step accesses in 4 bits from Step !1 to Step !8 .
R/W
R/W
R/W
H
L
L
RS
RS
RS
L
L
L
DB
DB
DB
BF
L
L
7
7
7
DB
DB
DB
O
L
L
6
6
6
6
DB
DB
DB
O
H
H
5
5
5
5
DB
DB
DB
Q
H
L
4
4
4
4
DD
has reached 4.5V or more.
MSM6222B-xx
4
to DB
42/45
7
):