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using GPIF only with 48M IFCLK | Cypress Semiconductor

using GPIF only with 48M IFCLK

Summary: 1 Reply, Latest post by aasi on 12 Jul 2011 09:48 AM PDT
Verified Answers: 0
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lgeorge123's picture
3 posts

  I have a Cyclone III  connect to CY7C68013  and continous send data ( array [512] ) to FX2LP . 48M IFCLK  is connect to input of cyclone III for triggering output data to FX2LP on rising and falling edge of IFCLK . No read signal from FX2LP is connected . Consulting EZ-USBR FX2LP. GPIF Design Guide pdf and keil c of  FX2_to_extsyncFIFO GPIF FIFO Transactions Auto mode , I copy most of the code and set the data and status of GPIF designer ( please see the dark circle of attach photo) .

The question I wish to ask is it possible to read data to FX2LP with IFCLK only without read strobe signal ????

aasi's picture
Cypress Employee
1166 posts


GPIF is flexible but whatever be the interface you would need a signal to qualify the presence of valid data on the line right?

Can you please elaborate on why you would like to implement a interface like this and how do you plan to sync between FX2LP and cyclone III without the presence of handshake signal between the two?



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