Progressive To Interlaced Conversion - Analog Devices ADV8003 Hardware Manual

3.5. PROGRESSIVE TO INTERLACED CONVERSION

ADV8003 has two progressive to interlaced converters (P2I).
The primary P2I converter is an independent block to which the PVSP, OSD and inputs can be connected. The primary P2I converter can
convert from any progressive format to its interlaced equivalent. The input to the primary P2I converter is selected by p2i_inp_sel[3:0].
The secondary P2I converter is connected directly to the SVSP. The secondary P2I converter cannot convert from 1080p to 1080i but can
handle all other progressive to interlaced conversions.
p2i_inp_sel[3:0], IO Map, Address 0x1A06[7:4]
This signal is used to select the video source for the Progressive to Interlaced converter.
Function
p2i_inp_sel[3:0]
0x00 
0x01
0x02
0x03
0x04
Rev. B, August 2013
Description
From Primary VSP
From Internal OSD Blend 1
From EXOSD TTL Input
From RX Input
From Video TTL Input
207
ADV8003 Hardware Manual