I am using MAX10 FPGA in my design and i am making JTAGEN pin as NC, because i dont want to use sharing. is it ok? is there any problem?

AKuma150 · ‎02-21-2019

AnandRaj_S_Intel · ‎02-21-2019

Hi Arvinda,

No,

Intel recommend to pull-up JTAGEN pin to a weak 10-kΩ pull-up.

If the JTAG pin sharing is not enabled, the JTAGEN pin is a regular I/O pin and JTAG pins function as JTAG dedicated pins.

To use JTAG pin as dedicated pin, tie the JTAGEN pin to a weak 10-kΩ pull-up

Reference,

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards,

Anand

AKuma150 · ‎02-21-2019

Hi Anand

thanks for your reply

weak pull-up means just need to enable the weak pull-up option for that particular pin right ?

AnandRaj_S_Intel · ‎02-21-2019

HI Arvinda,

Yes, jtagen pin has an internal 25-kΩ pull up. but still we required external 10-kΩ pull-up.

Regards

Anand

AKuma150 · ‎02-21-2019

Hi Anand

thanks for your help

Aravind