GPIO signal synchronized to the GPIF clock input

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heanc_1330791
Level 2
Level 2

Hi,

   

I am using GPIF interface as a synchronous slave FIFO input. The transmission is initiated by the FX3 by pulsing a GPIO line. However the trigger signal must be synchronized to the GPIF clock rather than the FX3s main clock in this design. How can I ensure the IO buffer of a spare GPIF CTLx  pin is still using the GPIF clock source after I override it to use it as a simple IO within the firmware?

   

Cheers,

   

Helmut

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