1 Reply Latest reply on Feb 6, 2019 11:35 PM by SananyaM_56

    USB FX2LP Slave FIFO Interface - IFCLK directionality

    sctrc_3172296

      FIgure 2 of AN61345 shows this diagram, which indicates that IFCLK is generated by the FPGA and fed to the FX2LP component:

       

      In the context of Slave FIFO mode, is it also valid to generate the IFCLK within the Cypress FX2LP chip, feed it through the FX2LP's output buffer, and use it directly in the FPGA for the synchronous state machine? Are there any timing considerations I'm not aware of? This seems straightforward enough to me.

       

      Thank you!