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ADV7280A-M Interface to Intel i7 Processor

Thread Summary

The user is facing issues reading CSI-2 output data from the ADV7280A-M chip using an Intel i7 processor. The final answer provides the MIPI bus frequencies: 108 MHz for interlaced mode (216 Mbps data rate) and 216 MHz for progressive mode (432 Mbps data rate). The engineer also recommends Application Note AN-1337 for interfacing the ADV7280A-M with MIPI receivers.
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Hi,

I'm using the Intel i7 processor CSI-2 interface to read the serial output data from ADV7280A-M chip.

So far, I was successful with the ADV7280A-M control through I2C port.  However, I'm facing several issues reading the CSI-2 output.

I need to configure the following registers in the intel processor to correctly receive the serial output data from the ADV7280A-M chip.  

- Clock termination delay

- Clock settling delay

- Data termination delay

- Data setting delay

To compute all these values, I need to know the MIPI bus frequency in hertz.

I looked at the ADV7280A-M documentation and I was not able to find the CSI-2 output frequency.

Could you please help with the frequency (in Hz) that the data is transmitted from the ADV7280A-M chip?

Thanks,

Anand

  • Hi,

    The data rates are fixed depending on the mode of operation.

    In interlaced mode the ADV7282-M outputs with a 216 Mbps data rate (MIPI clock frequency 108 MHz).

    In progressive mode (i.e. I2P mode on) the ADV7282-M outputs a 432 Mbps data rate ( MIPI clock frequency 216 MHz).

    Also Expert written an apps note to help customer interface the ADV7282-M with MIPI receivers. AN-1337 is available at AN-1337

    Thanks,

    Poornima