Mode 10 - Picture In Picture (Pip) (External Osd Less Than 720P); Figure 24: Adv8003 Mode 10 Configuration - Analog Devices ADV8003 Hardware Manual

2.1.11. Mode 10 – Picture in Picture (PiP) (External OSD Less Than 720p)
Mode 10 should be used if:
•
OSD data is input via the EXOSD TTL 24-bit input port
• OSD data input via the EXOSD TTL 24-bit input port is less than 720p
OSD rendered at a single set resolution: 480p OSD rendered at a single set resolution: 480p
Input Input
Exosd Exosd
480p Video 480p Video Secondary: Secondary:
Muxing Muxing
24-bit 24-bit
from from
Input Input
Decoder Decoder Formatting Formatting
Port Port
Video Video
36-bit 36-bit
Input Input
Formatting, Formatting,
Port Port
CSC & ACE CSC & ACE
720p Video 720p Video
Serial Serial
from from
Video Video
Transceiver Transceiver Formatting Formatting
RX RX
Mode 10 is used to support the external input of either part of or the complete OSD from another device, for example, an MCU. With
support for HS, VS, DE and CLK, the external OSD input can also be used to input video data. Using mode 10, the external OSD bus can
be used to support picture in picture (PiP) with two video streams.
In this mode, the input from the EXOSD TTL 24-bit input port is written into DDR2 memory and read back by the OSD core as a region
of the OSD. This region is then blended with input video.
Rev. B, August 2013
Mode 10 - PiP (External OSD < 720p) Mode 10 - PiP (External OSD < 720p)
DDR2 Memory DDR2 Memory
Interface Interface
Build Build Scale Scale
(480p) (480p)
OSD OSD OSD OSD
Video Video (480p) (480p) Primary Primary
Muxing Muxing VSP VSP
Data Data
& CSC & CSC
Primary: Primary:
Data Data
RX: RX:
(720p) (720p)
Data Data
& CSC & CSC

Figure 24: ADV8003 Mode 10 Configuration

(1080p) (1080p)
OSD OSD
Blend Blend
(1080p) (1080p)
Secondary Secondary
OSD OSD
VSP VSP
Data Data
Only Only
81
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(PiP) 1080p(PiP)
1080p(PiP) 1080p(PiP)
480p(OSD only) 480p(OSD only)