參數(shù)資料
型號： SAA5531
廠商： NXP Semiconductors N.V.
英文描述： Enhanced TV microcontrollers with On-Screen Display OSD
中文描述： 與微控制器在強化電視屏幕顯示OSD
文件頁數(shù)： 56/100頁
文件大小： 371K
代理商： SAA5531
2000 Feb 23
56
Philips Semiconductors
Preliminary specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA55xx
18.1.9
C
LOSED
C
APTION ACQUISITION
The US Closed Caption data is transmitted on line 21
(525-line timings) and is used for Captioning information,
Text information and Extended Data Services. Full details
can be found in the document “Recommended Practise for
Line 21 Data Service EIA-608”
Closed Caption data is only acquired when TXT21.CC ON
bit is set.
Two bytes of data are stored per field in SFRs the first bye
is stored in CCDAT1 and the second byte is stored in
CCDAT2. The value in the CCDAT registers are reset to
00H at the start of the Closed Caption line defined by
CCLIN.CS<4:0>. At the end of the Closed Caption line an
interrupt is generated if IE.ECC is active.
The processing of the Closed Caption data to convert into
a displayable format is performed by software.
19 DISPLAY
The display section is based on the requirements for a
Level 1.5WSTTeletextandUSClosedCaption.Thereare
some enhancements for use with locally generated
On-Screen Displays.
The display section reads the contents of the Display
memory and interprets the control/character codes.
From this information and other global settings, the display
produces the required RGB signals and Video/Data (Fast
Blanking) signal for a TV signal processing device.
The display is synchronized to the TV signal processing
device by way of horizontal and vertical sync signals
provided by external circuits (Slave Sync mode). From
these signals all display timings are derived.
19.1
Display features
Teletext and Enhanced OSD modes
Level 1.5 WST features
US Closed Caption features
Serial and Parallel display attributes
Single/double/quadruple width and height for characters
Scrolling of display region
Variable flash rate controlled by software
Globally selectable scan lines per row 9/10/13/16
Globally selectable character matrix (H
×
V) 12
×
9,
12
×
10, 12
×
13 or 12
×
16
Italics
Soft colours using CLUT with 4096 colour palette
Underline
Overline
Fringing (shadow) selectable from N-S-E-W direction
Fringe colour selectable
Meshing of defined area
Contrast reduction of defined area
Cursor
Special graphics characters with two planes, allowing
four colours per character
32 software redefinable On-Screen Display characters
4 WST character sets (G0/G2) in single device
(e.g. Latin, Cyrillic, Greek and Arabic)
G1 Mosaic graphics, Limited G3 Line drawing
characters
WSTcharactersetsandClosedCaptioncharactersetin
single device.
相關(guān)PDF資料
PDF描述
SAA5531PS Enhanced TV microcontrollers with On-Screen Display OSD
SAA5532 Enhanced TV microcontrollers with On-Screen Display OSD
SAA5532PS Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533 Enhanced TV microcontrollers with On-Screen Display OSD
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA5531PS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5532 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5532PS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533PS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
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