參數(shù)資料
型號(hào)： ST92186B3BK
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP32
封裝： PLASTIC, SDIP-32
文件頁數(shù)： 130/148頁
文件大小： 1664K
代理商： ST92186B3BK
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ST92186B - ON SCREEN DISPLAY CONTROLLER (OSD)
OSD CONTROLLER (Cont’d)
7.4.3.1 Display Attributes
s
Global screen attributes:
– Border color
– Border translucency
– Turn all background color into border color
s
Row parameters and attributes:
– Row mode control (serial, basic parallel, extend-
ed parallel)
– Row character count
– Horizontal and Vertical shift
– Active Range (used for vertical scrolling)
– Font matrix selection
– Size control (dot height and width definition)
– Flashing control
– Rounding control
– Fringe control
s
Serial character attributes:
– Background color (16 user definable colors)
– Foreground color (16 user definable colors)
– Flashing control
– Italics control
s
Palette parallel character attributes:
– Background color (16 user definable colors)
– Foreground color (16 user definable colors)
s
Shape parallel character attributes:
– Character code extension
– Double height
– Double width
– Foreground palette extension (32 user definable
colors)
– Background palette extension (32 user definable
colors)
– Flashing control
– Shadowing control
– Fringe control
7.4.3.2 OSD Area
When the Display controller is turned on, the TV
screen will show a specific color prior to any data
display which is called the “Border Color”. The ef-
fective border color is fully software programmable
from a palette of 512 colors through 2 control reg-
isters.
The border area translucency can be chosen from
8 different levels, from fully transparent to fully
opaque. The 3 translucency control bits are acces-
sible through the border color control registers.
When data are displayed by the OSD, they form
rows of characters. All characters of one row are
horizontally aligned.
For each displayed character, two kinds of colors
must be programmed which are defined as:
– Background color
– Foreground color
Figure 45. OSD Area description
7.4.3.3 Color processing
Further color elements may be generated by the
Display controller as a result of real time pixel cal-
culations (they are not stored in the Font ROM
memory). These are:
– Rounding pixels: they must be considered as
“calculated” foreground pixels.
– Fringe pixels: they are always displayed with a
black color and are never translucent.
– Underline pixels: they must be considered as
“calculated” pixels. Their colors are defined
through independent underline color values.
Translucency levels are also programmable for
underline pixels.
A
Border Color
1 Character row
1 Displayed character
Background color
Foreground color
Area
A
相關(guān)PDF資料
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