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參數資料
| 型號： | SAA5695HL |
| 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： | 86/116頁 |
| 文件大?。?/td> | 532K |
| 代理商： | SAA5695HL |
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2002 May 06
86
Philips Semiconductors
Objective specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA567x; SAA569x
Table 37
TXT display control bits
PICTURE ON
TEXT ON
BACKGROUND ON
EFFECT
0
0
0
1
1
1
0
1
1
0
1
1
X
0
1
X
0
1
Text mode, black screen
Text mode, background always black
Text mode
Video mode
Mixed text and TV mode
Text mode, TV picture outside text area
23.8
Screen colour
Screen colour is displayed from 10.5 to 62.5 ms after the
active edge of the HSYNC input, on TV lines 23 to 310
inclusive for a 625-line display, and on TV lines 17 to 260
inclusive for a 525-line display.
CC:
The screen colour is defined by the MMR Display
Control and points to a location in the CLUT table. The
screen colour covers the full video width. It is visible when
the Full Text or Mixed Screen Colour mode is set and no
foreground or background pixels are being displayed.
TXT:
Register bits TXT17.SCREEN COL<2:0> can be
used to define a colour to be displayed instead of TV
picture and the black background colour. If the bits are all
set to zero, the screen colour is defined as ‘transparent’,
and TV picture and background colour are displayed as
normal. Otherwise, the bits define CLUT entries 9 to 15.
In double window mode, TXT17.SCREEN COL<2:0>
applies to Text Area A and TXT27.SCRB<2:0> applies to
Text Area B.
23.9
Text display controls
23.9.1
T
EXT DISPLAY CONFIGURATION
(CC
MODE
)
Twotypesofareasarepossible.Theoneareaisstaticand
the other is dynamic. The dynamic area allows scrolling of
a region to take place. The areas cannot cross each other.
Only one scroll region is possible.
23.9.2
D
ISPLAY MAP
The display map (see Fig.40) allows a flexible allocation of
data in the memory to individual rows.
Sixteen words are provided in the Display memory for this
purpose. The lower ten bits address the first word in the
memory where the row data starts. This value is an offset
in terms of 16-bit words from the start of Display memory
(8000H).Themostsignificantbitenablesthedisplaywhen
not within the scroll (dynamic) area (see Table 38).
The display memory map is fixed at the first 16 words in
the Closed Caption Display memory.
Table 38
Display map bit allocation
BIT
FUNCTION
11
Text display enable, valid outside Soft Scroll
Area. 0 = disable; 1 = enable
This bit is reserved, should be set to logic 0
Pointer to row data
10
9 to 0
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相關代理商/技術參數 |
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|---|---|
| SAA5697HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA569X | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA5700 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Chinese Character System Teletext CCST decoder |
| SAA5700GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Chinese Character System Teletext CCST decoder |
| SAA5731 | 制造商:The Stanley Works 功能描述: |
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