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USB Superspeed Peripherals

Anonymous
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I check most of example code know GPIF can input a clock as reference. Does GPIF have a PLL(phase lock loop) let user can program and output to other device as a reference clock?

   

 

   

Thanks.

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Anonymous
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I found just sync slave fifo can output a clock. In GPIF2 designer seems output a clock when I select the clock setting as "internal" clock source. But in my design, I want output a lower frquency clock to device and receive a higher frequency as a sync reference clock.

   

 

   

Thanks.

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Anonymous
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Hi,

   

GPIF II accepts an interface clock (PCLK) from the external device upto 100MHz.

   

Or GPIF II can provide a clock upto 100MHz to the external devices.

   

This can be changed in  the GPIF II designer as shown below:

   

   

If you want to change the clock value you can do that by changing pibClock.clkDiv value.

   

Thanks,

   

sai krishna.

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