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Table 13 8-bit operation, 1-line display and icon 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

set CGRAM address

0001000000

_

sets the CGRAM address to position of character 0; the

CGRAM is selected

6

‘write data’ to CGRAM/DDRAM

1000001010

_

writes data to CGRAM for icon even phase; icons appear

7

|

|

8

set CGRAM address

0001110000

_

sets the CGRAM address to position of character 4; the

CGRAM is selected

9

‘write data’ to CGRAM/DDRAM

1000001010

_

writes data to CGRAM for icon odd phase

10

|

|

11

function set

0000110001

_

sets H = 1

12

icon control

0

0

0

0

0

0

1

0

1

0

_

icons blink

13

function set

0000110001

_

sets H = 0