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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
TV ENCODER
17-7
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
COMPOSITION OF SCREEN
1716(60Hz) or 1728(50Hz)
525
(60Hz)
o
r 62
5
(5
0
H
z
)
Active region
Sync region
under-scan
region
Horizontal
Back-porch
Horizontal
Front-porch
Vertical
Back-porch
Vertical
Front-porch
858(60Hz) or 864(50Hz)
1440(720), 60Hz or 50Hz
480
(60Hz)
o
r 57
6
(5
0
H
z
)
Figure 17-6. Composition of TV screen
In 60Hz type, The size of a frame is 858x525. This contains synchronous and real image region. Real image is
720x480. However, figure 17-6 is not 720 but 1440. Because TV encoder which embedded S3C6400 needs
double horizontal data rate. It uses to enhance image.
Otherwise, The size of a frame is 864x625 in 50Hz type. Also, real image is 720x576. It is only different with 50Hz
at vertical size.
Additionally, all types have under-scan region. We display images which are either 720x480 or 720x576, but even
we can’t watch whole region.