Frequently Asked Question

What is the difference between direct and indirect registers?

Direct registers must always be configured regardless of the application. They set the data and control width, operating frequency and all other necessary configurations to access the ADV202/212.

Indirect register configuration is required to set specific data transfer modes or configure the ADV202/212 for specific input formats.

Refer to the ADV202/212 Programming Guide for information when indirect registers must be used.

Direct registers are accesses with a standard RD/ or WR/, CS/, ACK/, ADDR[3:0] and HDATA [15:0] or HDATA[31:0] protocol.

Indirect registers are accessed over direct registers using Normal Host Mode. The direct registers IADDR and IDATA are used to access indirect registers. Refer to the ADV202/212 Programming Guide and datasheet for more detail.