Mode 7; Figure 21: Adv8003 Mode 7 Configuration - Analog Devices ADV8003 Hardware Manual

2.1.8.

Mode 7

Mode 7 should be used if:
•
HDMI input video is copy protected
• Additional processing is required on the new output formats
•
OSD is required on multiple outputs
• OSD and video scaling are to be kept separate
OSD rendered at a single set resolution: 720p OSD rendered at a single set resolution: 720p
Input Input
Exosd Exosd
Secondary: Secondary:
Muxing Muxing
24-bit 24-bit
Input Input
Formatting Formatting
Port Port
Video Video
36-bit 36-bit
Input Input
Formatting, Formatting,
Port Port
CSC & ACE CSC & ACE
720p Video 720p Video
from from Serial Serial
Transceiver Transceiver Video Video
Formatting Formatting
Rx Rx
Mode 7 is different to other modes in that OSD is not overlaid on video data on certain outputs but rather just output on its own. In
certain cases where HDMI video from an upstream IC is copy protected, video data can be output on HDMI outputs but not analog
outputs. However, OSD data can still be displayed on analog output, for example, to indicate system status or to recover the system from
an error-like state.
In this mode, the input format is 720p from an external video transceiver (this could also come from the Video TTL input if video is from
an upstream HDMI IC) and is passed to the PVSP. This is upscaled, blended with the 1080p OSD data and sent to both HDMI
transmitters. Because this may be copy protected, this cannot be passed to the analog outputs. The OSD on its own, however, can be
passed directly to these outputs. In the example in
Rev. B, August 2013
Mode 7 Mode 7
DDR2 Memory DDR2 Memory
Interface Interface
Build Build Scale Scale
(720p) (720p)
OSD OSD OSD OSD
Video Video Primary Primary
Muxing Muxing VSP VSP
Data Data
& CSC & CSC
Primary: Primary:
Data Data
RX: RX:
(720p) (720p)
Data Data
& CSC & CSC

Figure 21: ADV8003 Mode 7 Configuration

Figure 21, the OSD is scaled down to 480p and passed to the HD encoder.
(1080p) (1080p)
OSD OSD
Blend Blend
(1080p) (1080p)
Secondary Secondary
OSD OSD
VSP VSP
Data Data
Only Only
78
ADV8003 Hardware Manual
HDMI HDMI
Output Output Tx1 Tx1
Muxing Muxing
(1080p) (1080p)
HDMI HDMI
Tx2 Tx2
(480p) (480p)
HD HD
Encoder Encoder
SD SD
Encoder Encoder
1080p(OSD) 1080p(OSD)
1080p(OSD) 1080p(OSD)
480p(OSD only) 480p(OSD only)