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

anandv85 on Oct 12, 2021

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

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PoornimaSubramani
Oct 13, 2021 +1 suggested
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…

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0 PoornimaSubramani

on Oct 13, 2021 6:31 AM
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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0 PoornimaSubramani

on Oct 13, 2021 6:31 AM
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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