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YogeshaDG
New Contributor
New ContributorCyclone IV E(EP4CE30) FPGA JTAG and USB-Blaster
Hi Team, I am working with a Cyclone IV E FPGA(EP4CE30), where all my banks (Bank 1–8) have VCCIO = 3.3V. The FPGA core voltage is 1.2V, and the PLL supply is 2.5V. I am configuring the FPGA in Pass...
Hi,
Please connect to 2.5V VCCA even though the VCCIO of the banks where the configuration pins reside is 3.3V.
For more information, you can refer to this Knowledge Base article:
Regards,
Aqid
FvM
Super Contributor
Super ContributorHi,
device handbook suggests to use 2.5 V supply (VCCA) for JTAG interface (pull-ups and connector pin 4) with 3.3 V supplied JTAG IO bank.
Purpose is avoiding overshoot above maximum input voltage rating of 4.1 V.
Regards Frank
