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MTV021 Revision 5.0 6/29/1999

MTV021

MYSON

TECHNOLOGY

row 0 to row 14, it is used to set character size to each respective row. If double width character is chosen,

only even column characters could be displayed on screen and the odd column characters will be hidden.

FIGURE 4. Memory Map

ADDRESS BYTE

CRADDR - Define ROM character address.

ATTRIBUTE BYTE

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.

1. Row Control Registers, (Row 0 - 14)

ROW #

COLUMN #

0 1

28 29

30

31

0

1

13

14

DISPLAY

REGISTERS

ROW

CTRL REG

R

E

S

E

R

V

E

D

ROW 15

COLUMN#

0

2

3

5

6

8

9

11

12

22

23

30

WINDOW1

WINDOW2

WINDOW3

WINDOW4

FRAME

CRTL REG

PWM D/A

CRTL REG

b7

b6

b5

b4

b3

b2

b1

b0

CRADDR

MSB

LSB

b7

b6

b5

b4

b3

b2

b1

b0

-

BGR

BGG

BGB

BLINK

R

G

B

COLN 30

b7

b6

b5

b4

b3

b2

b1

b0

-

-

-

-

-

-

CHS

CWS