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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)

initialized; no display appears

2

function set

RS

R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

sets to 8-bit operation, selects 1-line display

0000110000

3

display mode on/off control

0000001110

_

turns on display and cursor; entire display is blank after

initialization

4

entry mode set

0000000110

_

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

1001010000

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

1001001000

PH_

writes ‘H’

7to11

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12

‘write data’ to CGRAM/DDRAM

1001010011

PHILIPS_

writes ‘S’

13

entry mode set

0000000111

PHILIPS_

sets mode for display shift at the time of write

14

‘write data’ to CGRAM/DDRAM

1000100000

HILIPS _

writes space

15

‘write data’ to CGRAM/DDRAM

1001001101

ILIPS

M_

writes ‘M’

16

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