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Table 14 8-bit operation, 2-line display example; using internal reset

STEP

INSTRUCTION

DISPLAY

OPERATION

1

power supply on (PCF2103 is initialized by the internal reset

function)

initialized; no display appears

2

function set

sets to 8-bit operation; selects 2-line display and voltage

generator off

RS

R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0000111000

3

display on/off control

turns on display and cursor; entire display is blank after

initialization

_

0000001110

4

entry mode set

sets mode to increment the address by 1 and to shift the

cursor to the right at the time of write to the CG/DDRAM;

display is not shifted

_

0000000110

5

‘write data’ to CGRAM/DDRAM

writes ‘P’; the DDRAM has already been selected by

initialization at power-on; the cursor is incremented by 1

and shifted to the right

P_

1001010000

6to10

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11

‘write data’ to CGRAM/DDRAM

writes ‘S’

PHILIPS_

1001010011

12

set DDRAM address

sets DDRAM address to position the cursor at the head of

the 2nd line

PHILIPS

0011000000

_

13

‘write data’ to CGRAM/ DDRAM

writes ‘M’

PHILIPS

1001001101

M_

14 to 19

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