1 Reply Latest reply on May 30, 2012 9:53 AM by dhanraj.rajput

    Can CTL lines of GPIF II used as simple I/Os?

    run.chen

      Hi,

         

      I have two questions.

         

      (1) I am designing a data acquisition board using CYUSB3014 chip. I want to use 32bit GPIF II bus for data communication. But not all CTL lines are used. So for the unused CTL lines, can they be seperated as simple I/Os (programmed to generate other independent control signals).

         

      (2) From the newly released GPIF II Designer, it says that when 32 bit data bus is not supported if SPI  is selected. Does it mean that when I am using 32bit data comminucation, I can not use the GPIO [53-56] which associated with SPI pins? Or I can still used those pins as I/O and program them by firmware?

         

       

         

      Thank you.