RA6963 datasheet(21/46 Pages) RAIO

21 / 46 page

Preliminary Version 1.3

Dot Matrix LCD Controller

RAiO TECHNOLOGY INC.

www.raio.com.tw

21/46

RA6963

< Table 6-9 >

0000h

0001h

………

001Eh

001Fh

0020h

0021h

………

003Eh

002Fh

0040h

0041h

………

005Eh

005Fh

0060h

0061h

………

007Eh

007Fh

6-7-2 Set Graphic Home Address

The starting address of the external display RAM used for graphic display is defined by this

Command. The graphic home address indicates the leftmost and uppermost position.

The Relationship between External Display RAM Address and Display Position

< Table 6-10 >

………

GH + CL

GH + GA

………

GH + GA + CL

(GH + GA) + GA

………

GH + 2GA + CL

(GH + 2GA) + GA

………

GH + 3GA + CL

GH + (n-1) GA

………

GH + (n-1) GA + CL

GH: Graphic Home Address

GA: Graphic Area Number (columns)

CL: Columns are fixed by hardware (pin-programmable).

(Example)

Graphic Home Address

: 0000h

Graphic Area

: 0020h

MD2=H, MD3=H

: 32 columns

DUAL

=H, MDS=L, MD0=H, MD1=H

: 2 lines

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