Automatic Input Muxing Selection; Figure 10: Adv7850 Input Functional Diagram - Analog Devices ADV7850 Hardware Manual

ADV7850

5.4 AUTOMATIC INPUT MUXING SELECTION

By selecting the various ain_sel[2:0] values, the user can direct the predefined analog input to ADC routing options.
The AIN_SEL also controls the routing of embedded synchronization on the SYNC pins to the embedded synchronization slicers.
Embedded synchronization refers to a synchronization signal that is 'embedded' in the input video signal itself, for example, Sync on
Green (SOG) and Sync on Y (SOY) type signals.
Note that CVBS, YC and SD components have to be manually routed using adc0_sw_man[3:0], adc1_sw_man[3:0], adc2_sw_man[3:0],
and adc3_sw_man[3:0] while adc_switch_man is set to 1. (Refer to Section 5.5.1.)

Figure 10: ADV7850 Input Functional Diagram

ain_sel[2:0], AFE, Address 0x02[2:0]
This control is used to select the analog input muxing mode.
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