adv7613 programming

Question

Hi, 
 Now I am using ADV7613 as a bridge of automotive display. 
 I want to use CEC function, and the CEC logical address should be set after the device gets physical address. 
 But I can't find the way to set or get physical address in programming guide and registers. 
 Please help to clarify how to set and get physical address of the adv7613. 
 
 Thanks 
 Jack

DharaniS · Accepted Answer

Hi, 
 Please find our comments below. 
 SPA - Source Physical Address: This is part of the CEA block in the EDID memory. Basically, it sets up CEC addressing which needs to change for each RX port. 
 Source to Port A will read the EDID as-is. 
 The source to Port B will read the EDID data and as the EDID data is read, the byte stream will be modified on the fly at the SPA_LOCATION with the values defined in SPA_PORT_B. The block checksum will be updated also on the fly. 
 SPA is just 2 bytes, Assume SPA_A = 0000 hex, then SPA_B might be 0001 hex 
 Please refer Page.76 in https://www.analog.com/media/en/technical-documentation/user-guides/ADV7613-UG-898.pdf 
 
 Thanks, Dharani S)

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adv7613 programming