T6963CFG datasheet(13/47 Pages) TOSHIBA

13 / 47 page

T6963CFG

2007-05-15

T6963CFG assign External character generator, when character code set 80H to FFH in using internal

character generator. Character code 00H to 80H assign External character generator, when External

generator mode.

The senior five bits define the start address in external memory of the CG RAM area. The next eight

bits represent the character code of the character. In internal CG ROM mode, character codes 00H to

7FH represent the predefined “internal” CG ROM characters, and codes 80H to FFH represent the user’

s own “external” characters. In external CG RAM mode, all 256 codes from 00H to FFH can be used to

represent the user' s own characters. The three least significant bits indicate one of the eight rows of

eight dots that define the character’ s shape.

The relationship between display RAM address and offset register

Offset register data

CG RAM hex. address (start to end)

00000

0000 to 07FFH

00001

0800 to 0FFFH

00010

1000 to 17FFH

11100

E000 to E7FFH

11101

E800 to EFFFH

11110

F000 to F7FFH

11111

F800 to FFFFH

(Example 1)

Offset register

02H

Character code

80H

Character generator RAM start address

0001

0100

0000

(Example 2) The relationship between display RAM data and display characters

γ and ζ are displayed by character generator RAM.

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