Lucent Technologies MN10285K - Manual (Page 166)

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