PCF2119VU-2-F2 Ver la hoja de datos (PDF) - NXP Semiconductors.

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PCF2119VU-2-F2

LCD controllers/drivers

NXP Semiconductors. 

NXP Semiconductors

PCF2119x

LCD controllers/drivers

16.11 8-bit operation, 2-line display

For a 2-line display the cursor automatically moves from the first to the second line after

the 40th digit of the first line has been written. Thus, if there are only 8 characters in the

first line, the DDRAM address must be set after the 8th character is completed

(see Table 41). It should be noted that both lines of the display are always shifted

together; data does not shift from one line to the other.

Table 41. 8-bit operation, 2-line display example; using external reset (character set ‘A’)

Instruction

Step RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Display

Operation

1

power supply on

initialized by the external reset; no

display appears

2

Function_set

0000110100

sets to 8-bit operation; selects 2-line

display and VLCD generator off

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 write to the CG/DDRAM;

display is not shifted

5

Write_data to CGRAM/DDRAM

1001010000P

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 to 10

:

PHILIP

writes ‘HILIP’

11

Write_data to CGRAM/DDRAM

writes ‘S’

1 0 0 1 0 1 0 0 1 1 PHILIPS

12

Set_DDRAM

sets DDRAM address to position the

0 0 1 1 0 0 0 0 0 0 PHILIPS

cursor at the head of the 2nd line

13

Write_data to CGRAM/ DDRAM

writes ‘M’

1 0 0 1 0 0 1 1 0 1 PHILIPS

M

14 to 18

:

PHILIPS writes ‘ICROC’

MICROC

19

Write_data to CGRAM/DDRAM

writes ‘O’

1 0 0 1 0 0 1 1 1 1 PHILIPS

MICROCO

20

Write_data to CGRAM/DDRAM

sets mode for display shift at the time

0 0 0 0 0 0 0 1 1 1 PHILIPS

of write

MICROCO

21

Write_data to CGRAM/DDRAM

writes ‘M’; display is shifted to the left;

1 0 0 1 0 0 1 1 0 1 HILIPS

the first and second lines shift

ICROCOM together

PCF2119X_5

Product data sheet

Rev. 05 — 13 August 2009

© NXP B.V. 2009. All rights reserved.

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