STV9432

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Table 2

CLUT Block Selection

8.3 - OSD CONTROL REGISTERS

Line Duration (reset value: 20H)

Top Margin (reset value: 30H)

CLU3

CLU[2:0]

Code Name

Command

Code (hex)

Ram @(hex)

Reset Value

(hex)

0

Col 0

00

@4020

07

1

Col 1

01

@4021

16

0

2

Col 2

02

@4022

25

3

Col 3

03

@4023

34

4

Col 4

04

@4024

43

5

Col 5

05

@4025

52

6

Col 6

06

@4026

61

7

Col 7

07

@4027

70

0

Col 0

00

@4028

70

1

Col 1

01

@4029

61

2

Col 2

02

@402A

52

1

3

Col 3

03

@402B

43

4

Col 4

04

@402C

34

5

Col 5

05

@402D

25

6

Col 6

06

@402E

16

7

Col 7

07

@402F

07

4030

VSP

HSP

LD6

LD5

LD4

LD3

LD2

LD1

VSP

:

V-SYNC active edge selection

= 0, falling egde,

= 1, rising edge.

HSP

:

HFLY active edge selection

= 0, rising egde,

= 1, falling edge.

LD[6:1]

:

LINE DURATION

LD0 = 0

LD1 = 2 periods of character

One character period is 12 pixels long.

4031

M9

M8

M7

M6

M5

M4

M3

M2

M[9:2]

:

TOP MARGIN height from the VSYNC reference edge.

M0 = 0, M1 = 0

M2 = 4 scan lines

Note

:

The top margin is displayed before the first strip of descriptor list. It can be black if FBK of DISPLAY

CONTROL register is set or transparent if FBK is clear.