TOPWAY

LCD Module User Manual

LM2068R

www.topwaysz.com

Document Name: LM2068R-Manual-Rev0.2.DOC

Page: 11 of 12

4.6

Initialization Setting Example

The following setting should be issue to LCD module after hardware reset.

(It is a basic example only; it could be adjusted if necessary.)

Register

Add

Register

Name

Value

(binary)

Value

(hex)

Note

00h

WLCR

1100 1101

CD

Power Mode = Normal Mode

Software Reset = Normal Operation

Display mode = Character Mode

Display on off control = normal display

Full screen blinking control = normal (no blinking)

Full screen inverse = normal (no inverse)

10h

WCCR

0010 1001

29

Auto-increase Cursor Position (in reading DDRAM operation) = disable

Chinese/English char alignment = disable

Store Current Data to DDRAM = directly

Set Bold font (char mode only) = normal

Auto-increase Cursor Position (in writing DDRAM operation) = enable

Cursor display control = off

Cursor blink control = no blinking

Set cursor width = auto adjust

11h

DWLR

0001 0000

10

Cursor Height = 1

Line Distance = 0

20h

AWRR

0010 0111

27

Active Window Right Register = 17

21h

DWRR

0010 0111

27

Display Window Right Register = 17

30h

AWBR

1110 1111

EF

Active Window Bottom Register = 7F

31h

DWBR

1110 1111

EF

Display Window Bottom Register = EF

40h

AWLR

0000 0000

00

Active Window Left Register = 00

41h

DWLR

0000 0000

00

Display Window Left Register = 00

50h

AWTR

0000 0000

00

Active Window Top Register = 00

51h

DWTR

0000 0000

00

Display Window Top Register = 00

81h

FRCA

0100 0000

40

Frame Rate Polarity Change at Common_A Register

90h

SCCR

0000 0100

04

Shift Clock Control Register (set to ~61Hz, when system clock=3MHz)

A0h

INTR

0000 1000

08

Enable the BUSY output with Key Scan Interrupt output

F0h

FNCR

1010 0000

A0

External Char ROM = enable

ROM BANK Selection = upper 256k ROM

Font ROM Translate = GB

Fill Data to DDRAM = no action

Font ROM range select = auto

ASCII Block Selection = map to ASCII block 0

Note:

Others un-mentioned register are using its hardware reset default value.