參數(shù)資料
型號(hào): 9402AVK
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: 14 X 14 MM, 2 MM HEIGHT, PLASTIC, MS-022, MQFP-80
文件頁數(shù): 48/126頁
文件大?。?/td> 1673K
代理商: 9402AVK
DATA SHEET
28
Aug. 16, 2004; 6251-552-1DS
Micronas
2.5.5.3. BLANK Generator
The BLANK signal is used to horizontally and vertically
mark active picture area. It is enabled by BLANEN and
its polarity can be chosen by BLANPOL and VBLAN-
POL. Referred to hsync, the start is given by BLAN-
DEL and its length is given by BLANLEN, both adjust-
able with 4 pixel resolution. Referred to vsync, the start
is given by VBLANDEL and its length is given by
VBLANLEN, both adjustable in 1 lines resolution.
2.5.5.4. Background Generator
This generator is able to realize an automatic closing
and opening of the displayed picture. This means that
with every picture the displayed colored background,
defined by UBORDER, VBORDER and YBORDER
will get bigger or smaller. The original picture data will
be replaced by the background values and vice versa.
There is also the possibility to realize a fixed border via
the IC bus (BORDPOSH and BORDPOSV). 4096 dif-
ferent colors are available.
BORDPOSH and BORDPOSV also influence the win-
dow generation. This means the automatic opening
and closing of the picture will start or end at the posi-
tion which is defined with these values. The border is
calculated with the following formula: The horizontal
border on the left side of the TV screen is 2*BORD-
POSH and 2*BORDPOSH on the right side of the TV
screen. This means, that 4*BORDPOSH pixels are
overwritten with border values. The same applies to
the vertical direction. 4*BORDPOSV lines in total are
overwritten
with
background
values.
BORDERV
decides whether upper or lower or both borders are
displayed. BORDERH decides whether left or right or
both borders are displayed.
Table 2–14: Display line scanning pattern sequence
Display Line Scanning Pattern Sequence
1. to 2.
2. to 3.
3. to 4.
4. to 5.(1.)
a a a a
312
313
312
313
b b b b
313
312
313
312
a a b b
312
312.5
313
312.5
a b a b
312.5
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