HD66712 Datasheet, PDF (61/88 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver

HD66712U
Table 16 8-Bit Operation, 24-Digit × 1-Line Display Example with Internal Reset
Step
Instruction
: No. RS R/ DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Display
1 Power supply on (the HD66712 is initialized by the internal reset
circuit)
2 Function set
00001100* *
3 Return home
0000000010
4 Display on/off control
_
0000001110
5 Entry mode set
_
0000000110
6 Write data to CGRAM/DDRAM
H_
1001001000
7 Write data to CGRAM/DDRAM
1001001001
8
·
·
·
·
·
9 Write data to CGRAM/DDRAM
1001001001
10 Entry mode set
0000000111
11 Write data to CGRAM/DDRAM
1000100000
HI_
·
·
·
·
·
HITACHI_
HITACHI_
ITACHI _
Operation
Initialized. No display.
Sets to 8-bit operation and
selects 1-line display.
Bit 2 must always be cleared.
Return both display and cursor
to the original position(address
0).
Turns on display and cursor.
Entire display is in space mode
because of initialization.
Sets mode to increment the
address by one and to shift the
cursor to the right at the time of
write to the RAM. Display is not
shifted.
Writes H. DDRAM has already
been selected by initialization
when the power was turned on.
Writes I.
Writes I.
Sets mode to shift display at the
time of write.
Writes a space.
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