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USB superspeed peripherals Forum Discussions

Prabhjot
Level 1
First reply posted First question asked Welcome!
Level 1

Hello Sir/Mam

 

We are planning to use the part CYUSB3014-BZXI in our design but the FPGA we are using only supports 1.5V I/O voltage level. SO could you suggest how can we interface it with our FPGA . And Is there any other part that supports 1.5V I/O level.

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Biren
Moderator
Moderator 50 solutions authored 10 likes received 100 replies posted
Moderator

Hello,

FX3 works at a minimum of 1.7V so you can use some bus level shifter.

Best Regards,
Biren

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Rashi_Vatsa
Moderator
Moderator 500 solutions authored 1000 replies posted 750 replies posted
Moderator

Hello,

I understand that you need to add USB 3.0 functionality to your application but the FPGA supports only 1.5V IO voltage. Is my understanding correct?

If yes, as you are aware FX3 supports min voltage of 1.7 V on VIO1/VIO2 (GPIF interface). Please confirm that you want to have an application as mentioned in AN65974 i.e. interfacing FPGA through GPIF II interface

Regards,
Rashi
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Prabhjot
Level 1
First reply posted First question asked Welcome!
Level 1

Hello

 

I understand that you need to add USB 3.0 functionality to your application but the FPGA supports only 1.5V IO voltage. Is my understanding correct?--CORRECT

If yes, as you are aware FX3 supports min voltage of 1.7 V on VIO1/VIO2 (GPIF interface). Please confirm that you want to have an application as mentioned in AN65974 i.e. interfacing FPGA through GPIF II interface--Yes,We are interfacing through GPIF II interface

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Biren
Moderator
Moderator 50 solutions authored 10 likes received 100 replies posted
Moderator

Hello,

FX3 works at a minimum of 1.7V so you can use some bus level shifter.

Best Regards,
Biren

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Prabhjot
Level 1
First reply posted First question asked Welcome!
Level 1

Hello 

Can you suggest some Part for BUS level shifter which will serve the purpose.

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Biren
Moderator
Moderator 50 solutions authored 10 likes received 100 replies posted
Moderator

Hello,

Sorry we don't have any reference design for this but I think you can search the "BUS level shifter" keyword in google and get some design references, you may need to modify the reference design based on your clock and voltage.

Best Regards,
Biren

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