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JanVrkoslav's avatar
JanVrkoslav
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4 years ago

Cyclone 10 LP JTAG galvanic isolation

Hello, Cyclone 10 design guideline says: JTAG pins in the Intel Cyclone 10 LP device are powered up by VCCIO. However, you may need to use VCCA in some cases. • For devices using VCCIO of 2.5, ...
JanVrkoslav's avatar
JanVrkoslav
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4 years ago

Hi,

thanks for reply. In GPIO handbook is written that Dedicated configuration pins and JTAG pins do not support impedance matching or
series termination.

But I was asking why I MUST power up the device with 2,5V if Iam sure that my power rail will not exceed 4,1V. Thats possible issue of the USB blaster? Can I proceed with 3,3V levels or not?

Thanks

Jan