參數資料
型號: SAA6703AH
廠商: NXP SEMICONDUCTORS
元件分類: 顯示控制器
英文描述: CRT OR FLAT PNL GRPH DSPL CTLR, PQFP160
封裝: 28 X 28 MM, 3.40 MM HEIGHT, PLASTIC, MS-022, SOT-322-2, QFP-160
文件頁數: 73/97頁
文件大?。?/td> 488K
代理商: SAA6703AH
2004 Apr 01
75
Philips Semiconductors
Product specication
XGA analog input at panel controller
SAA6703AH
7.16.2
WAIT MODES
It is not necessary to match the output timing exactly to the
input timing. The output timing can be a little faster. In this
event it may happen that no valid data is available at the
OIF. As the output stream to the panel should not be
interrupted during the output of a frame or line, a line wise
and a frame wise wait mode is available.
The wait_column (register OI_WX) has to be programmed.
During output of lines inside the picture area, the output
stream stops at this defined wait_column and waits until
new picture data is available. If fieldwise wait mode is
programmed, the output only stops at the wait_column of
the first line of the picture area. The wait_column must be
located in front of the active area (see Fig.26). Additionally,
there is a free-running mode without any wait point.
The wait modes are programmed in register OI_WM
according to Table 52.
handbook, full pagewidth
MHC233
last_line
1,1
main frame
active frame
blank_line_length
wait_column
picture area
waiting
possible
rst row
continuous picture data
Fig.26 Wait column.
Table 52 Wait modes
wait_mode[1:0]
MODE
ACTION
11
free-running
no waiting
10
01
row stop
waiting in each row of picture area
00
one stop
waiting in rst row of picture area once each frame
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