Lucent Technologies MN10285K User Manual

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On-Screen Display
VRAM
MN102H75K/F75K/85K/F85K LSI User Manual
Panasonic Semiconductor Development Company
165
Panasonic
7.8
VRAM
7.8.1
VRAM Operation
Text Layer
CC:
 Character Code
ID Code: 00
CCH[9:0]
Specifies the address of one of 1024 characters stored in the ROM.
COL: Color Control Code (Normal Mode)
ID Code: 10
BSHAD[1:0]
Specifies shadowing of the character box for a 3D button effect.
00: Disable
01: Disable
10: Upper left white and lower right black shadows
11: Upper left black and lower right white shadows
CSHAD
Specifies character shadowing for a 3D effect.
0: Disable
1: Enable
FRAME
Specifies character outlining (black).
0: Disable
1: Enable
Table 7-7 VRAM Bit Allocation in Internal RAM
Text layer
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CC
Character code
0
0
*
*
*
*
CCH9
CCH8
CCH7
CCH6
CCH5
CCH4
CCH3
CCH2
CCH1
CCH0
ID code
Character address (1024 characters)
COL (normal mode)
Color control code
1
0
*
BSHAD1 BSHAD0 CSHAD FRAME BLINK BCOL3 BCOL2 BCOL1 BCOL0 CCOL3 CCOL2 CCOL1 CCOL0
ID code
Box shadow
Char. 
shadow
Outline
Blink
Background color (16 colors)
Character color (16 colors)
COL (closed-caption mode)
Color control code
1
0
*
*
CUNDL ITALIC FRAME BLINK BCOL3 BCOL2 BCOL1 BCOL0 CCOL3 CCOL2 CCOL1 CCOL0
ID code
Underline Italics
Outline
Blink
Background color (16 colors)
Character color (16 colors)
CCB
Repeat character/blank code
0
1
*
*
*
*
*
*
*
*
*
CCBF
CCB3
CCB2
CCB1
CCB0
ID code
Blank/
char.
Number of blank/char. repetitions
CHP
Character H position control
1
1
*
CHSZ1 CHSZ0
CSHT
CHP9
CHP8
CHP7
CHP6
CHP5
CHP4
CHP3
CHP2
CHP1
CHP0
ID code
H size
Shutter
H display start position (1 dot resolution, 1024 steps)
CVP
Character V position control
1
1
CLAST CVSZ1 CVSZ0
CINT
CVP9
CVP8
CVP7
CVP6
CVP5
CVP4
CVP3
CVP2
CVP1
CVP0
ID code
Last line 
flag
V size
Interrupt
V display start position (1 H scan line resolution, 1024 steps)
Graphics layer
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GTC
Graphic tile code
0
GCBF
GCB3
GCB2
GCB1
GCB0
GPRT
GTC8
GTC7
GTC6
GTC5
GTC4
GTC3
GTC2
GTC1
GTC0
ID code
Blank/
tile
Number of blank/tile repetitions
Palette 
select
Graphic tile address (512 tiles)
GHP
Graphics H position control
1
1
*
GHSZ1 GHSZ0
GSHT
GHP9
GHP8
GHP7
GHP6
GHP5
GHP4
GHP3
GHP2
GHP1
GHP0
ID code
H size
Shutter
H display start position (1 dot resolution, 1024 steps)
GVP
Graphics V position control
1
1
GLAST GVSZ1 GVSZ0
GINT
GVP9
GVP8
GVP7
GVP6
GVP5
GVP4
GVP3
GVP2
GVP1
GVP0
ID code
Last line 
flag
V size
Interrupt
V display start position (1 H scan line resolution, 1024 steps)
*
Don’t-care bits