How to detect Video Chip Model (ADV7280, ADV7280A-M and ADV7282A)?

Question

Hi, 
 Is there a way to detect through I2C if the interface chip is ADV7280, ADV7280A-M orADV7282A? I looked at the IDENT register however it was not useful. Is there any other registers that uniquely identify the chip? 
 
 Thanks, 
 Anand

PoornimaSubramani · Accepted Answer

Hi, 
 Please refer below appropriate value of the silicon revision number for ADV728x chipsets & also we will check whether any registers is avialble to identify the ADV728x model. 
 ADV7280 register IDENT[7:0], Address 0x11 is 0x42. ADV728XA register IDENT[7:0], Address 0x11 is 0x43. 
 Please refer the respective hardware manual for above chipset. 
 
 Thanks, 
 Poornima)

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How to detect Video Chip Model (ADV7280, ADV7280A-M and ADV7282A)?