240128-06-FC-R-ST-LED-WH datasheet(15/32 Pages) ETC2

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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE

MODEL NO: 240128-06

Pacific Display Devices

03.07.2006

(2) Offset Register Set

The offset register is used to determine external character generator RAM area.

T6963C has 16 bit address lines as follow.

MSB

LSB

ad15 ad14 ad13 ad12 ad11 ad10

ad9

ad8

ad7

ad6

ad5

ad4

ad3

ad2

ad1

ad0

The upper 5 bit (ad15

∼ad11) are determined by offset register. The middle 8 bit (ad10∼ad3) are determined by

character code. The lower 3 bit (ad2

∼ad0) are determined by vertical counter. The lower 5 bit of D1 (data) are valid. The data

format of external character generator RAM.

The ralationship of display RAM address and offset register

Data of offset register

CG RAM HEX address(start-end)

00000

0000-07FFH

00001

0800-0FFFH

00010

1000-17FFH

11100

E000-E7FFH

11101

E800-EFFFH

11110

F000-F7FFH

11111

F800-FFFFH

(Example 1)

Offset register

02H

Character code

80H

Character generator RAM start address

0001

0100

0000

( Address )

( Data )

1400H

00H

1401H

1FH

1402H

04H

1403H

04H

1404H

04H

1405H

04H

1406H

04H

1407H

00H

(Example 2)

The relationship of display RAM data and display character

( RAM Data )

( Character )

A B

γ D E ζ G H I J K L M

21H

22H

83H

24H

25H

86H

Display character

Note :

γ and ζ are displated by character generator RAM.

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