Forum Discussion
EugenyB
Occasional Contributor
Occasional ContributorPerforming user access to the configuration serial flash device
Cyclone III. I need access to the serial flash device (W25Q128) after configuration completes.
I am unable to select pins connected to the flash chip using my "user" code. Whatever I set in the dev...
Ash_R_Altera
Regular Contributor
Regular ContributorHi Eugeny,
The ASDO pin is a dedicated output pin in Active Serial (AS) mode. It can be an input during configuration while in Passive Serial (PS) and Fast Passive Parallel (FPP) modes.
It can be used as user I/O after configuration.
Refer below Pin Connection Guidelines:
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/cyclone3/pcg-01003.pdf
Regards.
