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USB Superspeed Peripherals

New Contributor

Hi, Our product is planed to use the CX3.

And it receives 1860x1860/p30 YUV422 8bit (1.66Gbps) data by CSI-2.

However, data bit rate per lane is selected only 400Mbps or 800Mbps due to CSI-2 TX device limitation.

(400Mbps x4lanes > Insufficient bandwidth, 800Mbps x4lanes > over spec 2.4Gbps of CX3. )

Is the solution of 800Mbps x 3lanes a possible idea for CX3?

If yes, are there any notes?

Thanks.

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Moderator
Moderator

Hello,

It is possible to use 800Mbps x 3 lanes for CX3.

You can create the firmware by using the CX3 configuration utility provided with the FX3 SDK.

You will have to take care that PCLK would not be more than 100MHz or else you would go over the 2.4Gbps spec limit.

Do you want notes related to using CX3 configuration utility or is there something else that you require?

Regards,

Yashwant

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1 Reply
Moderator
Moderator

Hello,

It is possible to use 800Mbps x 3 lanes for CX3.

You can create the firmware by using the CX3 configuration utility provided with the FX3 SDK.

You will have to take care that PCLK would not be more than 100MHz or else you would go over the 2.4Gbps spec limit.

Do you want notes related to using CX3 configuration utility or is there something else that you require?

Regards,

Yashwant

View solution in original post

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