ST92195C STMicroelectronics, ST92195C Datasheet - Page 100

• Manufacturer Part Number: ST92195C
• Description: 48-96 Kbyte Rom Hcmos Mcu With On-screen Display And Teletext Data Slicer
• Manufacturer: STMicroelectronics

ON SCREEN DISPLAY (Cont’d)
7.4.4 Programming the Display
All the characteristics of the display are managed
by programmable attributes:
Table 18. Global Attributes
Display Enable (DE)
4/3 or 16/9 Format (SF)
Conceal Enable (CE)
Fringe Enable (FRE)
Global Fringe Enable (GFR)
Global Rounding Enable
(GRE)
Semi-transparent Mode
(STE)
Translucency (HTC and
TSLE)
Half-Tone (HTC and TSLE)
40/80 Chars/Row (S/D)
Fast Blanking Active Level
Serial/Parallel Mode (SPM)
Page or Line Display Mode
(PM)
Global Attributes
Serial Attributes
Parallel Attributes (active until a superseding
serial or parallel attribute).
Global Attributes
0= Display Off (Default)
1= Display On
0= 4/3 Screen Format (Default)
1= 16/9 Screen Format
0= Reveal any text defined as concealed by serial attributes (Default)
1= Conceal any text defined as concealed by serial attributes
0= Fringe Disabled (Default)
1= If SWE in NCSR register is reset, it acts as Fringe enable (toggle with
serial attribute 1Bh). Active on the whole page but not in 80-character
mode.
0= Global fringe mode off
1= Display all text in page in fringe mode
0= Disabled (Default)
1= Rounding active on the whole page but not in 80-character mode.
0=Disabled (default)
1=Enabled
The Fast Blanking signal is toggled with the double pixel clock rate on Back-
ground and full screen area in 40 character mode.
Note: Semi-transparent mode shows a visible grid on screen.
The TSLU signal is active when the OSD displays the background and full
screen area and is inactive during foreground or if no display. This output
pin is used with a Chroma processor to mix the video input with the RGB to
get full translucency.
The HT signal is active when the OSD displays the background and full
screen area and is inactive during foreground or if no display. The HT signal
is used with a video processor to perform a contrast reduction.
0=Single page (40 Characters per row) (default)
1= Two pages are displayed contiguously (80 Characters per row). In this
mode, only serial mode is available.
0=Display when Fast Blanking output is low (default)
1=Display when Fast Blanking output is high
0= Serial Mode (Default)
1= Parallel Mode
0 = Full Page Mode (Default) 23 lines plus 1 header and two status lines.
1= Line Mode
ST92195C/D - ON SCREEN DISPLAY (OSD)
Description
7.4.4.1 Global Attributes
These global attributes are defined through their
corresponding registers (see the Register Descrip-
tion).
Cursor Control
Scrolling Control
DCM0R
R250 (FAh)
Page 32
DCM0R
DCM0R
DCM0R
DCM0R
DCM0R
DCM0R
NCSR R245
(F5h) Page
32 and FSC-
CR R243
Page 32
NCSR R245
(F5h) Page
32 and FSC-
CR R243
Page 32
DCM0R
DCM1R
R251 (FBh)
Page 32
DCM1R
DCM1R
Register
Control
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