PCF2119DUSLASH2SLASH2 datasheet(15/79 Pages) NXP

15 / 79 page

PCF2119X_5

Product data sheet

Rev. 05 — 13 August 2009

15 of 79

NXP Semiconductors

PCF2119x

LCD controllers/drivers

When data is written to or read from the DDRAM, wrap-around occurs from the end of one

line to the start of the next line. When the display is shifted each line wraps around within

itself, independently of the others. Thus all lines are shifted and wrapped around together.

The address ranges and wrap-around operations for the various modes are shown in

Table 7.

9.2 CGROM

The Character Generator ROM (CGROM) contains 240 character patterns in a 5

× 8 dot

format from 8-bit character codes. Figure 9 to Figure 14 show the character sets that are

currently implemented.

All addresses are shown in hex.

Fig 8.

DDRAM to display mapping: left shift

Table 7.

Address space and wrap-around operation

Mode

× 32

× 16

Address space

00h to 4Fh

00h to 27h;

40h to 67h

00h to 27h

Read/write wrap-around

(moves to next line)

4Fh to 00h

27h to 40h;

67h to 00h

27h to 00h

Display shift wrap-around

(stays within line)

4Fh to 00h

27h to 00h;

67h to 40h

27h to 00h

04 05

41 42 43 44 45

0E 0F 10

4E 4F 50

DDRAM

address

line 1

line 2

2-line display/MUX 1 : 9 mode

30 31 32

14 15 16

04 05

02 03

1E 1F 20

display

position

DDRAM

address

1-line display

mgk894

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