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)： 129/148頁
文件大小： 1664K
代理商： ST92186B3BK
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ST92186B - ON SCREEN DISPLAY CONTROLLER (OSD)
7.4 ON SCREEN DISPLAY CONTROLLER (OSD)
7.4.1 Introduction
The OSD displays character data and menus on a
TV screen.
Each row can be defined through three different
Display configurations:
– Serial mode: each character is defined by an 8-
bit word which provides the character address
into the Font ROM memory. Some codes are re-
served for color controls and do not address any
character description. They are displayed as
spaces and as a direct consequence are active
on a “word” basis.
– Basic parallel mode: each character is defined
by a 16-bit word which provides the character ad-
dress in the Font ROM memory and its color at-
tribute. This mode is called “parallel” as the
colors are definable on a “per character” basis.
– Extended parallel mode: each character is de-
fined by a 24-bit word which provides the charac-
ter address in the Font ROM memory and its
color and shape attributes. This mode is called
“parallel” as the attributes are definable on a “per
character” basis.
7.4.2 General Features
s
50/60 Hz and 100/120 Hz operation
s
525/625 lines operation, 4/3 or 16/9 format
s
Interlaced or progressive scanning
s
18x26 or 9x13 character matrix user definable in
ROM. Both matrixes can be mixed.
s
Up to 63 characters per row
s
7 character sizes in 18x26, 4 in 9x13
s
512 possible colors in 4x16-entry palettes
s
8 levels of translucency on Fast Blanking
s
Basic Parallel Mode for character based color
definition
s
Extended parallel mode for character based
color and shape definition
s
Rounding,
fringing,
shadowing,
flashing,
scrolling, italics, and various underlining modes
Definition of Terms used in this Chapter
– Pixel: minimum displayed element that the Dis-
play Controller can handle. Its vertical physical
size is always one TV line. Its horizontal physical
size is directly linked to the basic clock frequency
(called Pixel clock) which synchronizes the OSD
and is therefore independent of any magnifica-
tion factor which may be applied to the displayed
element.
– Dot: a dot defines the displayed element which
corresponds to a single bit read from the Font
ROM memory. A dot is represented on the
screen by a "matrix" of pixels. The matrix size de-
pends on the magnification factor applied.
7.4.3 Functional Description
All characters are user definable by masking the
Font ROM content (except the one corresponding
to code 00h which is reserved for test). Two differ-
ent matrixes can be used and mixed:
– 18x26 character matrix
– 9x13 character matrix
The hardware display system has the capability of
displaying one character row and requires the
CPU to update the next display buffer prior to dis-
playing the next row. Using a real time routine, the
On Screen Display supports the display of as
many character rows as the TV screen can physi-
cally handle.
The OSD can display up to 63 characters per row,
depending on the row RAM buffer size (user defin-
able, see Section 7.4.5.1).
A smart pixel processing unit provides extended
features such as rounding, fringe, or shadowing
for better picture quality. Other smart functions
such as flashing, scrolling, italics, underlining al-
low the designing of a high quality display applica-
tion.
The screen insertion of the displayed characters is
fully synchronized by the vertical and horizontal
TV synchronizing signals. The OSD controller
generates the Red, Green, Blue and Fast Blanking
video signals through 8-level DAC outputs. The
Fast Blanking video signal can also be generated
as a digital signal if needed.
相關(guān)PDF資料
PDF描述
ST92195B2T1/XXX 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP64
ST92195B3B1/XXX 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP56
ST92195B4B1/XXX 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP56
ST92195B5T1/XXX 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP64
ST92195B6T1/XXX 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST92195 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
ST92195B 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
ST92195B1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
ST92195B1B1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
ST92195B1T1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
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