nRESET pin in Cyclone III EP3C80F484C6N

[UMall1]

Does the nRESET Pin in the Cyclone III device have to be programmed to act as a regular IO pin or does this happen automatically. I am using active Serial programming - therefore I do not need nRESET to program the device.

I am using the pin (E4) as an input pin but I do not see the signal inside the FPGA (that is clearly present at the input pin - I can check it with a scope) when I try to read the state of the pin and light an LED.

[NurAiman_M_Intel]

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[NurAiman_M_Intel]

Hi,

As the pin connection guidelines,

'When not programming the device in AP Note 13 mode, nRESET is not used and is available as a user I/O pin. If the pin is not used as an I/O then it is recommended to tie this pin to VCCIO, GND or leave the pin unconnected.'

You can just leave the pin unconnected if it is not used.

Regards,

Aiman

[NurAiman_M_Intel]

We do not receive any response from you to the previous answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you