1
4
P
P
L
P
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Table 12
8-bit operation, 1-line display example; using internal reset (character set ‘A’)
STEP
INSTRUCTION
DISPLAY
OPERATION
1
power supply on (PCF2103 is initialized by the internal reset
function)
function set
RS
R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
1
display mode on/off control
0
0
0
0
0
initialized; no display appears
2
sets to 8-bit operation, selects 1-line display
1
0
0
0
0
3
0
1
1
1
0
_
turns on display and cursor; entire display is blank after
initialization
4
entry mode set
0
0
0
0
0
0
0
1
1
0
_
sets mode to increment the address by 1 and to shift the
cursor to the right at the time of the write to the
DD/CGRAM; display is not shifted
5
‘write data’ to CGRAM/DDRAM
1
0
0
1
0
1
0
0
0
0
P_
writes ‘P’; the DDRAM has already been selected by
initialization at power-on; the cursor is incremented by 1
and shifted to the right
6
‘write data’ to CGRAM/DDRAM
1
0
0
1
0
0
1
0
0
0
PH_
writes ‘H’
7 to 11
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12
‘write data’ to CGRAM/DDRAM
1
0
0
entry mode set
0
0
0
‘write data’ to CGRAM/DDRAM
1
0
0
‘write data’ to CGRAM/DDRAM
1
0
0
1
0
1
0
0
1
1
PHILIPS_
writes ‘S’
13
0
0
0
0
1
1
1
PHILIPS_
sets mode for display shift at the time of write
14
0
1
0
0
0
0
0
HILIPS _
writes space
15
1
0
0
1
1
0
1
ILIPS
M_
writes ‘M’
16
|
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