Forum Discussion

New Contributor

4 years ago

JTAG pin sharing in MAX10

I would like to know if I can use the option of JTAG pin sharing "on the fly" by toggle JTAG_EN pin (switch back and forth between user I/O pins and dedicated JTAG pin)?

NurAiman_M_Intel

Super Contributor

4 years ago

Hi,

Thank you for contacting Intel community.

Per Intel Max 10 pin connection guideline,

Intel suggest when to use JTAG pins as regular I/O pins, tie the JTAGEN pin to a weak 1-kΩ pull-down. To use JTAG pin as dedicated pin, tie the JTAGEN pin to a weak 10-kΩ pull-up.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/max-10/pcg-01018.pdf (page 6).

Regards,

Aiman