Digital Video Input; Figure 30: Video Ttl Input Channel - Analog Devices ADV8003 Hardware Manual

Function
osd_blend_inp_sel[3:0]
0x00 
0x01
0x02
0x03
0x04
osd_blend_inp_2_sel[3:0], IO Map, Address 0x1A08[3:0]
This signal is used to select the video to be blended on OSD channel 2.
Function
osd_blend_inp_2_sel[3:
0]
0x00 
0x01
0x02
0x03
0x04
For example, when using the ADV8003 in mode 3 (described in Section 2.1.4), 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 ADV8003 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 ADV8003 in mode 3. More registers will need to be configured depending
on the input and desired video standards.
2.2.2.

Digital Video Input

The ADV8003 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 ADV8003 input channels are illustrated in
Video TTL Input
EXOSD TTL Input
Video TTL Input +
EXOSD TTL Input
(OSD_IN[11:0] + P[35:0])
Rev. B, August 2013
Description
From Main TTL Input
From Secondary VSP/PtoI Converter
From Primary VSP
From OSD TTL Input
From RX Input
Description
From Main TTL Input
From Secondary VSP/PtoI Converter
From Primary VSP
From OSD TTL Input
From RX Input
Primary Input Channel
Data AV-Code
Detect
Rotate

Figure 30: Video TTL Input Channel

Figure 30,
Up-dither CSC
89
ADV8003 Hardware Manual
Figure 31 and Figure 32.
Contrast
ACE
Brightness
Saturation
48-bit to
24-bit
Conversion
Primary Input
Channel Output