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USB Low-Full-High Speed Peripherals

New Contributor

Hello

Please tell me about Assella data rates.

https://www.e-consystems.com/jp/Cypress-CX3-THine-ISP-13MP-RDK-jp.asp

Data rate when communicating at Ultra HD (3840×2160)15fps

about 1.9Gbps = 3840x2160x15fpsx16bit/1000000000

When the YUV422 of Cypress CX3 is selected (16bit width),the maximum data rate is exceed(1.6Gbps).

Question

When this happens, is CX3 doing 24-bit transfer?

I want to know the CX3 Mipi setting value and the setting values of CyU3PMipicsiSetIntfParams and CyU3PMipicsiGpifLoad in this case.

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Moderator
Moderator

There is no settings for 32 bit stream format.

In terms of YUV, there are 3 types of YUV422 8bit mode format and YUV422 10 bit mode.

pastedImage_0.png

Please ask the customer to read CX3 stream format on the TRM. Especially, "1.6    CX3 MIPI CSI-2 Stream Formats"

https://www.cypress.com/documentation/technical-reference-manuals/ez-usb-cx3-technical-reference-man...

After that, could you let me know the question from the customer if it still exists?

Best regards,

Hirotaka Takayama

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Moderator
Moderator

You can set 24-bit GPIF bus width to achieve high bandwidth. (CY_U3P_MIPICSI_BUS_24 is defined in CyU3PMipicsiBusWidth_t structure for setting of CyU3PMipicsiGpifLoad)

For more information, you can refer to the CX3 examples in FX3 SDK. C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\firmware

After that, could you let me know which parameter you are not clear?

Best regards,

Hirotaka Takayama

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New Contributor

Thank you for your response.

I want to know the value of data Format which is an element of CyU3PMipicsiCfg_t structure for setting to

MIPI CSI-2 Receiver(YUV422 32bit) / Parallel Output(YUV422 24bit).

Currently,it is set to CY_U3P_CSI_DF_YUV422_8_2 for setting to MIPI CSI-2 Receiver(YUV422 16bit) / Parallel Output(YUV422 16bit).

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Moderator
Moderator

There is no settings for 32 bit stream format.

In terms of YUV, there are 3 types of YUV422 8bit mode format and YUV422 10 bit mode.

pastedImage_0.png

Please ask the customer to read CX3 stream format on the TRM. Especially, "1.6    CX3 MIPI CSI-2 Stream Formats"

https://www.cypress.com/documentation/technical-reference-manuals/ez-usb-cx3-technical-reference-man...

After that, could you let me know the question from the customer if it still exists?

Best regards,

Hirotaka Takayama

View solution in original post

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