CYUSB4347 Hub attached 2x 5Gbps device on DonwStream ports with 10Gbps UpStream Host.

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Ping
Level 1
Level 1
Distributor - Avnet(GC)
5 replies posted 10 sign-ins 5 sign-ins

Dear Sir/Madam,

Please help to check the CYUSB4347 USB3.1 Gen2 (10Gbps) Hub is there suitable for the below application.

CYUSB4347's UpStream port attached to PC Host Port with USB3.1 Gen2 (10Gbps).

A USB3.0 Device (5Gbps operate in Isochronous Mode with 3Gbps payload) connected to CYUSB4347 DS4 port, that is works fine on data transfer from Device to PC.

But when attaching one more USB3.0 Device (same device as above) connected to CYUSB4347 DS5 port (i.e. 2 devices connected to CYUSB4347 DS ports at the same time), this device cannot get enough resources from PC Host for data transfer.

Please help to evaluate.

Best regards,

Ping 

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MallikaK_22
Moderator
Moderator
Moderator
50 likes received 750 replies posted 250 solutions authored

Hi Ping,

When multiple simultaneous data transfers occur, it can result in sharing of the USB bus bandwidth.

But how much is the effect being seen? Please describe the issue.

Also, you can stop all data transfers on the USB bus except on DS5 for seeing USB 3.1 Gen 2 data
transfer speed.

Regards,

Mallika

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