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參數(shù)資料
| 型號： | SAA5254 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Integrated VIP and teletext decoder IVT1.1X |
| 中文描述： | 綜合貴賓和圖文電視解碼器IVT1.1X |
| 文件頁數(shù)： | 18/36頁 |
| 文件大?。?/td> | 805K |
| 代理商： | SAA5254 |
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1996 Nov 07
18
Philips Semiconductors
Preliminary specification
Integrated VIP and teletext decoder
(IVT1.1X)
SAA5254
Note
1.
These functions have IN and OUT referring to inside and outside the boxing function respectively.
R7 DISPLAY MODE - does not auto-increment
BOX ON 0
BOX ON 1 to 23
BOX ON 24
DOUBLE HEIGHT
BOTTOM HALF
REVEAL ON
CURSOR ON
STATUS TOP
Boxing function allowed on Row 0.
Boxing function allowed on Rows1 to 23.
Boxing function allowed on Row 24.
To display double height text.
To select bottom half of page when DOUBLE HEIGHT = 1.
To reveal concealed text.
To display cursor.
Row 25 displayed above or below the main text.
R9 CURSOR ROW - auto-increments to Register 10
R0 to R4
A0
CLEAR MEM
Active row for data written to or read from memory via the I
2
C-bus.
Selects display memory page (when = 0) or extension memory (when = 1).
When set to logic 1, clears the display memory. This bit is automatically reset.
R10 CURSOR COLUMN - auto-increments to Register 11 or 11B
C0 to C5
Active column for data written to or read from memory via the I
2
C-bus.
R11 CURSOR DATA - does not auto-increment
D0 to D7
Data read from/written to memory via I
2
C-bus, at location pointed to by R9 and
R10. This location automatically increments each time R11 is accessed.
R11B DEVICE STATUS - does not auto-increment
VCS SIGNAL QUALITY
Indicates that the video signal quality is good and PLL is phase-locked to input
video when logic 1.
If a good teletext signal is being received then logic 1.
Indicated language/ROM variant. For Western European = 11000.
If the input video is a 525 line signal then logic 1.
TEXT SIGNAL QUALITY
ROM VER R0 to R4
625/525 SYNC
REGISTER BIT D0 TO D7
FUNCTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5254P | Integrated VIP and teletext decoder IVT1.1X |
| SAA5261 | 10-page intelligent teletext decoders |
| SAA5262PS | 10-page intelligent teletext decoders |
| SAA5261PS | 10-page intelligent teletext decoders |
| SAA5262 | 10-page intelligent teletext decoders |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5254GP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| SAA5254P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated VIP and teletext decoder IVT1.1X |
| SAA5261 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-page intelligent teletext decoders |
| SAA5261PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-page intelligent teletext decoders |
| SAA5262 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-page intelligent teletext decoders |
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