Forum Discussion
Altera_Forum
Honored Contributor
16 years ago --- Quote Start --- Specifically, the Altera documentation gives the pinout for HSMC_TX_N10 as E18 but this is not available for use since, as shown in your pinout, this is 'RESERVED_OUTPUT_OPEN_DRAIN'. --- Quote End --- nCEO is a reserved pin cause you didn't change the settings in the Device Options menu for dual-purpose pins. It's not used by the design and thus fully available.