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參數(shù)資料
| 型號： | VDP3130Y |
| 廠商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 英文描述： | Video Processor Family |
| 中文描述： | 視頻處理器系列 |
| 文件頁數(shù)： | 24/76頁 |
| 文件大?。?/td> | 1770K |
| 代理商： | VDP3130Y |
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VDP 313xY
ADVANCE INFORMATION
24
Micronas
2.11.5.Fast Blank Monitor
The presence of external analog RGB sources can be
detected by means of a fast blank monitor. The status
of the selected fast blank input can be monitored via
an I
2
C bus register. There is a 2 bit information, giving
static and dynamic indication of a fast blank signal.
The static bit is directly reading the fast blank input
line, whereas the dynamic bit is reading the status of a
flip-flop triggered by the negative edge of the fast blank
signal.
With this monitor logic it is possible to detect if there is
an external RGB source active and if it is a full screen
insertion or only a box. The monitor logic is connected
directly to the FBLIN1 or FBLIN2 pin. Selection is done
via I
2
C bus register.
2.11.6. Half Contrast Control
Insertion of transparent text pages or OSD onto the
video picture is often difficult to read, especially if the
video contrast is high. The VDP 313xY allows contrast
reduction of the video background by means of a half
contrast input (HCS pin). This input can be supplied
with a fast switching signal (similar to the fast blank
input), typically defining a rectangular box in which the
video picture is displayed with reduced contrast. The
analog RGB inputs are still displayed with full contrast.
Fig. 2
–
21:
Fast Blank Selection Logic
2.11.7.IO Port Expander
The VDP 313xY provides a general purpose IO port to
control and monitor up to seven external signals. The
port direction is programmable for each bit individually.
Via I
2
C bus register it is possible to write or read each
port pin. Because of the relatively low I
2
C bus speed,
only slow or static signals can be handled.
Fig. 2
–
22:
Half Contrast Switch Logic
FBPRIO
FBPOL
FBFOL1
FB
int
#
FBFOH1
FBLIN1
FBLIN2
FBFOH2 FBFOL2 FBMON
#
Fast
Blank
Selection
Fast
Blank
Monitor
HCSPOL
HCS
HCSEN HCSFOH
HCS intern
#
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VDP31XXB | Video Processor Family |
| VDP3108PR | Consumer IC |
| VDSGLD_38.88 | TRANS PREBIASED PNP 200MW SOT23 |
| VDSL5100I | TVS 400W 43V UNIDIRECT SMA |
| VDSL5100 | TVS 400W 40V BIDIRECT SMA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VDP3131Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP3132Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP3133Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP3134Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP313XY | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
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