8/21

MTV030 Revision 1.0 10/15/1999

MTV030

MYSON

TECHNOLOGY

FIGURE 5. Attribute Bytes of Display Registers Memory Map

ADDRESS BYTES:

Address registers,

CRADDR - Define ROM character address from address 0 to 511.

Row Control Registers, (Row 0 - 14)

CHS - Define double height character to the respective row.

CWS - Define double width character to the respective row.

ATTRIBUTE BYTES:

BGR, BGG, BGB - These three bits define the color of the background for its relative address character. If all

three bits are clear, no background will be shown(transparent). Therefore, total 7 back-

ground color can be selected.

BLINK - Enable blinking effect while this bit is set to " 1 ". And the blinking is alternate per 32 vertical frames.

R, G, B - These three bits are used to specify its relative address character color.

ROW #

COLUMN #

0 1

28 29

30

31

0

1

13

14

CHARACTER ATTRIBUTE BYTES

of DISPLAY REGISTERS

RESERVED

ROW 15

COLUMN#

0

11

12

22

23

27

28

31

WINDOW1 ~ WINDOW4

FRAME

CRTL REG

PWM D/A

CRTL REG

RESERVED

ROW 16

COLUMN#

0

1

2

31

WINDOW SHADOW COLOR

RESERVED

b8

b7

b6

b5

b4

b3

b2

b1

b0

CRADDR

MSB

LSB

COLN 30

b7

b6

b5

b4

b3

b2

b1

b0

-

-

-

-

-

-

CHS

CWS

b7

b6

b5

b4

b3

b2

b1

b0

-

BGR

BGG

BGB

BLINK

R

G

B