ADV8005 Hardware Reference Manual
UG-707
For example, when using the
in Mode 3 (described in Section
), the following register settings are needed to configure the video
data path:
1A 1A03 34; Output of OSD blend to HDMI Tx1, Output of Secondary VSP to HDMI Tx2
1A 1A04 30; Output of OSD blend to HD encoder, SD encoder not used.
1A 1A05 00; Input to
to both Primary and Secondary VSP.
1A 1A06 02; Progressive to Interlaced converter not used, output from Primary VSP to OSD blend.
These four register writes configure the hardware blocks in the
in mode 3. More registers will need to be configured depending on
the input and desired video standards.
2.2.2.
Digital Video Input
has three means of receiving video: the video TTL input and the EXOSD TTL input which constitute the flexible 60-bit TTL
input port, and the Serial Video Rx. Each of the TTL inputs can be connected to one of the input channels – the primary input channel or the
secondary input channel. The Serial Video Rx is always connected to the RX input channel. Each channel features a dedicated input formatter,
color space converter (CSC) and dither block. The primary input channel also features an automatic contrast enhancement (ACE) control. The
input channels are illustrated in
and
Figure 26: Video TTL Input Channel
Figure 27: EXOSD TTL Input Channel
Figure 28: RX Input Channel
Primary Input
Channel Output
Video TTL Input
EXOSD TTL Input
Data
Rotate
AV-Code
Detect
Up-dither
CSC
Contrast
Brightness
Saturation
ACE
48-bit to
24-bit
Conversion
EXOSD TTL Input
(OSD_IN[11:0] + P[35:0])
Video TTL Input +
Primary Input Channel
External OSD
Alpha Output
Video TTL Input
EXOSD TTL Input
Data
Rotate
AV-Code
Detect
Up-dither
CSC
Data
Formatter
Secondary Input Channel
Secondary Input
Channel Video Output
(Receiver)
External OSD
Alpha Output
Serial
Video
RX
Data
Rotate
Up-dither
CSC
Data
Formatter
RX Input Channel
RX Input
Channel
Output
>1080p 12-bit data
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