參數(shù)資料
型號(hào): SDA9400
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
英文描述: Scan Rate Converter using Embedded DRAM Technology Units
中文描述: 掃描頻率轉(zhuǎn)換器采用嵌入式DRAM技術(shù)股
文件頁(yè)數(shù): 57/94頁(yè)
文件大?。?/td> 1180K
代理商: SDA9400
SDA 9400
Micronas
57
Preliminary Data Sheet
6.5.5 Window generator
The figures below show the functionality of the horizontal and/or vertical window function. The
actual TV display can be overwritten with a constant value (defined by YBORDER, UBORDER,
VBORDER), which is called “closing” or the constant value can be overwritten with the actual TV
signal, which is called “opening”. For the generation some parameters exist, which will be explained
in more detail afterwards.
Examples for window feature
The feature can be enabled by the parameter WINDHON/WINDVON. The parameter WINDHST/
WINDVST defines the status of the window (opened or closed). Closed means, that only a constant
value is displayed, opened means, that the full TV is displayed. The parameter WINDHDR/
WINDVDR defines, what can be done with the window (open the window, close the window).
Output write parameter: WINDHST/WINDVST and WINDHDR/WINDVDR
With each enabling of the window function by the WINDHON/WINDVON parameter, the status of
the window will be as defined by the table above, that means the WINDHST/WINDVST parameter is
only once interpreted after enabling the window function. To change afterwards the status from
“window is close” to “window is open” or vice versa only the WINDHDR/WINDVDR has to be
WINDHST/
WINDVST
Description
WINDHDR/
WINDVDR
Description
0
0
1
1
Window is closed
Window is closed
Window is opened
Window is opened
0
1
0
1
open the window
window remains closed
window remains open
close the window
W
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