UG-707
ADV8005 Hardware Reference Manual
2.1.4.
Mode 3
Mode 3 should be used if:
•
Two separate upscaled resolutions are required
•
De-interlacing is not required
•
OSD is required on one resolution only (preferably the higher resolution output)
Figure 13:
Mode 3 Configuration
Both the PVSP and SVSP work in parallel in this mode. As the OSD is only on one data path, it will only be displayed at a single resolution. As
shown in the example in
, the input to the SVSP must be a progressive format. Therefore, this mode can only be used when the input
is progressive. This mode allows the user to overlay the OSD on the higher resolution output(s).
It can be seen in
that the same output formats can be generated in this mode. However, the OSD is now only generated on the higher
resolution outputs. This mode allows the user to generate two different outputs resolutions and only display OSD on one output.
Note:
De-interlaced inputs can be input to the device in this mode; however the SVSP can only accept progressive input formats. Therefore, the
SVSP would be excluded from the processing in this case.
OSD
Blend
Build
OSD
Scale
OSD
Secondary
VSP
Output
Muxing
Mode 3
DDR2 Memory
Interface
(720p)
(480p)
(1080p)
(1080p)
(720p)
1080p(OSD)
1080p(OSD)
720p
(720p)
(1080p)
OSD rendered at a single set resolution: 720p
Primary
VSP
HDMI
Tx2
HDMI
Tx1
HD
Encoder
SD
Encoder
480p Video
from
Transceiver
Video
36-bit
Input
Port
Exosd
24-bit
Input
Port
Serial
Video
RX
Input
Muxing
Secondary:
Data
Formatting
& CSC
Primary:
Data
Formatting,
CSC & ACE
RX:
Data
Formatting
& CSC
Video
Muxing
OSD
Blend
Build
OSD
Scale
OSD
Secondary
VSP
Output
Muxing
Mode 3
DDR2 Memory
Interface
(720p)
(480p)
(1080p)
(1080p)
(720p)
1080p(OSD)
1080p(OSD)
720p
(720p)
(1080p)
OSD rendered at a single set resolution: 720p
Primary
VSP
HDMI
Tx2
HDMI
Tx1
HD
Encoder
SD
Encoder
480p Video
from
Transceiver
Video
36-bit
Input
Port
Exosd
24-bit
Input
Port
Serial
Video
RX
Input
Muxing
Secondary:
Data
Formatting
& CSC
Primary:
Data
Formatting,
CSC & ACE
RX:
Data
Formatting
& CSC
Video
Muxing
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