Please refer to the gpif2_designer_userguide.pdf file that comes with the FX3 SDK. The file can be found at the below path after the installation of SDK.
C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\doc\GPIFII_Designer
Please feel free to post further queries in case you have.
Thank you very much!
I will read this
But I'm sure there will be a lot of questions...