saa6703h NXP Semiconductors, saa6703h Datasheet - Page 76

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

Philips Semiconductors
7.17
The Output Interface (OIF) provides picture data and
command signals to the display. Programming the output
interface, the output frame geometry can be defined.
As most displays require continuous data stream during
one frame or line, it is possible to define wait points. There
are different possibilities how to map the RGB data to the
output ports PA to PF.
The SAA6703H does not have particular output ports for
panel signals VSYNC, HSYNC or DE. Instead, there are in
total 5 Configurable Signal Generator (CSG) outputs
which are driven by free programmable CSGs.
All output interface programming registers are mapped to
the I
7.17.1
The total output frame area (main frame) is defined by
blank_line_length and last_line (registers OI_FX and
OI_FY). It consists of the visible data (active frame) and
the invisible data (blanking); see Fig.25 and Table 51.
2004 Apr 01
handbook, full pagewidth
XGA dual input flat panel controller
2
C-bus configuration register page 11.
Output interface
D
EFINITION OF THE OUTPUT FRAME GEOMETRY
last_line
1,1
main frame
a
active frame
b
Fig.25 Output frame set-up.
picture area
border area
76
The active frame is divided into border and picture area.
The picture area includes the data from the input stream.
The border area is around the picture area. If no border is
needed, the register values of picture and active area have
to be equal. The active frame can be put anywhere inside
the main frame except in the first row or in the first column
of the main frame.
The geometric values for the frames/areas depend on the
display and the timing. If the picture values are not correct
data may be lost or missing data will be replaced by border
colour. The serial output begins in the upper left corner of
the main frame in row 1 and column 1. The active frame
starts in row active_start_y and in column active_start_x
(point a in Fig.25). Values 0 are not allowed and the active
frame or the picture area cannot start in column one. The
picture area has to be contained in the active frame, at
maximum it may be identical to the active frame.
c
MHC232
d
blank_line_length
e
Product specification
SAA6703H