saa6703h NXP Semiconductors, saa6703h Datasheet - Page 78

• Manufacturer Part Number: saa6703h
• Description: Xga Dual Input Flat Panel Controller.
• Manufacturer: NXP Semiconductors

Philips Semiconductors
7.17.2
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
Table 54 Wait modes
2004 Apr 01
handbook, full pagewidth
wait_mode[1:0]
XGA dual input flat panel controller
11
10
01
00
W
AIT MODES
first row
continuous picture data
free-running
row stop
one stop
last_line
MODE
1,1
wait_column
main frame
active frame
Fig.26 Wait column.
no waiting
waiting in each row of picture area
waiting in first row of picture area once each frame
78
picture area
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 54.
ACTION
MHC233
blank_line_length
Product specification
SAA6703H