HD66712 Datasheet, PDF (64/88 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver

HD66712U
Table 18 8-Bit Operation, 24-Digit × 2-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
00001110* *
3 Display on/off control
_
0000001110
4 Entry mode set
_
0000000110
5 Write data to CGRAM/DDRAM
H_
1001001000
6
·
·
·
·
·
7 Write data to CGRAM/DDRAM
1001001001
·
·
·
·
·
HITACHI_
Operation
Initialized. No display.
Sets to 8-bit operation and
selects 2-line display.
Clear bit 2.
Turns on display and cursor. All
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 at
power-on.
Writes I.
8 Set DDRAM address
0011000000
HITACHI
_
Sets DDRAM address so that
the cursor is positioned at the
head of the second line.
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